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Sanitary Diaphragm Valves

Saunders

SaundersConverting Visions into Reality

2 www.cranesaunders.com

Page No.

Sanitary Valve Features 3

Standard Two-Way AFP BodiesForgings 4Bio-Seal Bodies 5Investment Castings 5Solid Block and Larger Size Bodies 5Material Specifications 6End Connections and Specifications 7Surface Finish 8Electropolishing 9Valve Dimensions 10

Customized Fabrication OptionsTandem Valves 12Tandem Valve Options 13Zero Deadleg ZDL 14Valve Manifold/Clusters 15

Standard Machined Block BodiesZero Deadleg (ZDT) 16Technical Data (ZDT) 17Close-Coupled Branch Valves (CCB) 18Technical Data (CCB) 19Point-of-Use Options (CCB U-Bend) 20Technical Data (CCB U-Bend) 21Tank Bottom Valves 22Technical Data (Tank Bottom Valves) 23Diverter Valves 24Diverter Multiport Configurations 25

Bio-Block Customized Design OptionsComputer Aided Engineering Capability 26Conceptual Approach 27Machined Tandem Valves 28Bio-Block Serial Weir 29Chromatography 30Advanced Sanitary Valve Design Tools 31

Manual Bonnets Bio-PharmBonnets and Design Features 32Locking/LimitClose/Sealed Options 33

Actuated BonnetsEC/SSC Overview 34ECX Range 35EV and ES 36Valve Throttling and Control 37Materials and Dimensions 38Accessories 44

DiaphragmsDiaphragm Design/Performance 46Traceability and Validation 48USP, EPDM and EPM Grades 50PTFE Grades 51Diaphragm Design/Performance 52

Engineering Data Flow Coefficients 53Applications 54

Approvals/Standards/QualityThe Complete Approach to Quality 55Quality, FDA/ASME-BPE 55

Model Numbering System 56

Originator The sanitary diaphragm valve is the most important controlcomponent in today’s biopharmaceutical process systems. As the inventor of the diaphragm valve, Saunders has been akey player in the evolution of high purity valve technology.

Innovator Beginning with the introduction of forged bodies and compactthermoplastic actuators to machined from solid compound andmulti-port valve solutions, Saunders has taken the lead insanitary valve technology.

Leader Current design and construction standards in thepharmaceutical industry place ever-higher demands on thesterility, cleanability, integrity and performance of pipingcomponents. Utilizing the latest in computer design andmanufacturing tools, Saunders Bio-Block valves can beengineered and machined from solid stainless steel bar or billet,converting visions into solutions which can meet your specificprocess needs.

Technology Our direct design to tool computer interface minimizes manufacturing engineering time. Unique design tools enable usto produce e-mailable 3D representations for evaluation andreview before committing to manufacture.

Dynamic Saunders Design Engineering uses Computational Fluid Dynamicsoftware to analyze flow conditions and design the optimumdiaphragm valve solutions.

Solutions Bio-Block custom machined valves are the perfect complementto Saunders’ full range of standard two-way valves, machinedbranch valves and welded cluster configurations, giving you theoptimum system design.

Trust All Saunders customized and standard valve bodies are supplied with full material traceability and are used withSaunders FDA (Food and DrugAdministration) conforming,traceable and USP Class VI(United States Pharmacopeia)tested diaphragms andSaunders ergonomic range ofmanual bonnets and actuators. Allproducts are engineered specificallyfor sanitary applications within thebiopharm and allied industries.

Contents

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SaundersSaunders Diaphragm Valve FeaturesFor Sanitary Applications

DiaphragmsSaunders unique FDA/USPconforming diaphragms are allmanufactured from raw polymerin-house. All diaphragms are fullytraceable back to the physicalcharacteristics of the rubber blend.

End ConnectionsBody is machined from asingle 316L SS forging withintegral ends. Butt-weld endshave sufficient turnback fororbital weld installation. Nowavailable with weld chemistryto ASME BPE table DT-3 withsulfur between 0.005% and0.017%.

Top EntryDesigned for in-linemaintenance essentialfor welded systems.

Forged BodiesAll sanitary valve bodies are profiled for low turbulence flow. Forged in316L/1.4435 stainless steel(ASTM A-182) to maximumferrite content level 0.5%.Cavity-free design eliminatesentrapment areas andenhances diaphragm life.

Position IndicationHighly visible from a distance with clear indicationof valve position.

Sealed Bonnet “O” Ring sealed bonnet prevents contaminationfrom external environment.

Performance Bonnet AssemblyPolyethersulphone (PES) suitable forwash-down with detergents, sodiumhydroxide, hypochlorite, alcohols, diluteacids and autoclaving at up to 150°C.

Modular OptionsAvailable modular optionsinclude padlocking device,proximity sensors and limitopen stop.

ShroudedShrouded bonnetconstruction coversbody fasteners for cleanexterior profile.

FDA ConformingBoth PES bonnet shell andinternal components are fullyFDA conforming.

HandwheelHigh integrity handwheelwith ergonomic designassures comfortable,precise control.

ContouredContoured design optimizes externalwashdown andcleanability.

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Sanitary Type Diaphragm ValvesStandard Two-Way Bodies


Saunders invented the diaphragm valveconcept and then pioneered the developmentof the first true high purity diaphragm valve withthe introduction of the AFP forged 316L/1.4435body range. The entrapment-free design andself-draining characteristics of the diaphragmvalve body make it the ideal choice for bothsanitary processes and systems that must becleaned in place. Top entry design allowsmaintenance while the valve is installed andthus permits the valve to be welded in place,reducing the required number of mechanicaljoints and enhancing system security.

Sanitary Forged Stainless Steel Bodies (0.50" to 3.00")

Saunders standard AFP body is forged from316L/1.4435 stainless steel bar (ASTM A-182).The forging process results in a homogeneoussurface that is free of defects such as porosity,inclusions or shrinkage cavities. This defect-freesurface is an ideal substrate for the high levels ofmechanical and electropolished surfacesdemanded by the biopharm industry to maintainsterility and optimize cleaning processes.Saunders forged bodies are manufactured toachieve low ferrite levels of less than 0.5%maximum. This reduces the potential formigration of oxides through a high purity watersystem. These bodies are fully FDA compliant,meet all existing ASME BPE (American Society ofMechanical Engineers Bioprocessing Equipment)standards and cGMP (current GoodManufacturing Practice) principles and are idealfor all high-purity biopharm applications.

Drainability

The diaphragm valve has outstanding self-drainingcharacteristics when compared with other valve types andthis feature has contributed in making the valve a standard forhygienic/sanitary application requirements. Factors whichaffect drainability are:

◆ Valve size and end specification

◆ Internal surface finish

◆ Drain orientation (as shown)

◆ Surface tension and viscosity of media

◆ Pipe run angle – generally recommended at 2 to 3 degrees

Guideline drain orientation angles for individual size and tubespecifications are readily available from Saunders on request.Please note that drainability in a process system is ultimatelythe responsibility of the system designer and/or end user as aresult of the variance factors denoted above.

Two-way bodies are supplied with hash-marks to indicate theself-drain angle. The marks must be located in a plane cuttingthe vertical centerline of the pipe.

Saunders Valve Body Highlights◆ Cavity free and self-draining

◆ Isolating diaphragm, top entry design, and positive closure

◆ Low maintenance costs

◆ Readily incorporated into valve cluster and accessvalve/fitting fabrications

◆ Materials of construction compatible to entire system

◆ Bubble-tight closure against both pressure and vacuum

◆ Bi-directional flowpath

◆ Diaphragm valves are recognized by the biopharm industryas the only truly sanitary valve

◆ Controlled sulfur bodies (.005-0.017%) meets BPE-DT3requirement for low sulfur content

Standard Two-Way Valves

Bio-Seal valves 0.25" – 0.50"

Forged stainless steel valves 0.50" – 3.00"

Solid block stainless steel valves 4.00" – 8.00"

Cast stainless steel valves 0.25" – 4.00"

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SaundersSanitary Type Diaphragm ValvesStandard Two-Way Bodies

Machined from Block-Standard forSanitary Valve Bodies (4.00" to 8.00")

Larger size designations are nowmachined integrally from solid wrought 316L stainless steel barstock (ASTM A-479). Thisconstruction brings the same high level of surface integrity andmetallurgical security as available with the Sanitary forgings.

Bio-Seal Forged Bodies (0.25" to 0.50")

Saunders Pure Performance fractional valvebodies offer a compact, space-saving, high-integrity solution for critical applications. Manufactured from a 316L/1.4435stainless steel forging (ASTM A-182), the valve is used widely as asample or drain port in Bio-Pharm system design. Hygienic clampand buttweld ends are machined from base forging and cover sizes0.25" to 0.50". This flexibility is achieved by using the same bodydesign for all options and machining inlet/outlet ports to the desiredend specification. This allows the valve to use the same sizediaphragm, bonnet and actuator across all specification requirementsregardless of end connection size.

Sanitary Investment Cast Stainless SteelBodies (0.25" to 4.00")

Saunders’ investment cast range uses high-quality materials and selective casting processesto provide an economical solution for the food,beverage, dairy, and bioprocess industries.Available in all major international tubedesignations including, O.D. tubing, Tri-Clamp,DIN and ISO. Stringent quality control isemployed to minimize any risk of porosity andensure a finished product of the highest integrity.

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Sanitary Type Diaphragm ValvesBody Material Specifications (Forgings)


Saunders standard body material for all forged bodies is stainless steel 316L/1.4435. This provides conformity with most majorinternational specification requirements andensures compatibility with Bio-Pharm pipework.

Full material traceability to EN10204 (DIN 500493.1b) is available for all body combinations whichadheres to cGMP guidelines.

Material 1.4435/316L EN 10222-5 ASTM A-182

Element %

Carbon 0.03 max.

Silicon 1.00 max.

Manganese 2.00 max.

Phosphorus 0.045 max.

Sulfur 0.03 max.

Chromium 17.0/19.0

Nickel 12.5/15.0

Molybdenum 2.5/3.0

Nitrogen 0.11

In certain application areas in biopharmaceutical installations there may be arequirement for special alloys and/or materials – for instance, the presenceof high chloride concentrations may necessitate the use of a special materialto avoid the effects of “pitting corrosion”. Under these demanding conditionsSaunders can offer any of the following material options:

◆ Hastelloy®

◆ Titanium

◆ AL6XN®

◆ Other alloys on request

Body options in special alloy material may be manufactured from forgings orwrought barstock depending on the material, size, volume and bodyconfiguration.

Saunders forged 316L stainless steelbodies meet ASTM A-182 and also complywith ASME BPE table DT-3 for controlledsulfur – 0.005% to 0.017%. The longerintegral buttweld ends on Saunders valvescombined with their optimal weldchemistry allow field orbital-weldingwithout requiring tube-end extensions.

Lower sulfur levels in 316L stainless steelalso result in lower levels of ManganeseChloride inclusions and, consequently, asuperior surface finish after electro-polishing.

Chemical Composition ASME BPE Table DT-3

Element %

Carbon 0.030 max.

Silicon 1.00 max.

Manganese 2.00 max.

Nickel 12.50 min. – 13.50 max.

Chromium 17.00 min. – 18.00 max.

Molybdenum 2.50 min. – 3.00 max.

Nitrogen 0.110 max.


Sulfur 0.005 min. – 0.017 max.

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SaundersSanitary Type Two-Way BodiesSurface Finish

Ra

y

X

Im = measuring length

I0 I0I0I0 I0

Cleaning Time (minutes)

Number of organisms/cm2

10

100

1,000

10,000

100,000

0

2.4 m Ra

0.65 m Ra

0.42 m Ra

10 20 300

SURFACE FINISHASME BPE Saunders Ra Mechanical Electro-SFV Code Finish Code Maximum Polish Polish

SFV 1 7 20 Yes No

SFV 2 5 25 Yes No

SFV 3 3 30 Yes No

SFV 4 8 15 Yes Yes

SFV 5 2 20 Yes Yes

SFV 6 6 25 Yes Yes

SFV 7 1 10 Yes Yes

Saunders valve bodies are available in acomplete range of mechanically polished andelectropolished surface finish options to matchsystem design requirements. All bodies arepermanently marked with heat number codingand are available with full material traceabilitycertification upon request. Major objectives inspecifying the appropriate surface finish are:

◆ To minimize product adhesion to the interior surface of the valve and pipework

◆ To achieve a surface which is readily cleanableby SIP/CIP (Steam in Place/Clean in Place) in theminimum of time

◆ To result in a defect-free and consistent surfaceto minimize any risk of process contamination

There is little published information on therelationship between surface finish and residual soil levels. Although research work* has shownthat it takes approximately twice as long toclean a surface of 1.0 µm Ra as it does to oneof 0.5 µm Ra (see above graph).

Saunders uses a surtronic measurementdevice as part of our standard quality controlprocedures and can, upon request, supplyofficial certification for a particular order.Designated points (internally and externally) aremeasured to provide consistent methodology.

The Ra value (roughness average) has becomethe accepted methodology for quantifying thesurface finish of a stainless steel surface, andremoves the confusion and misintepretationassociated with grit designations.

It can be identified as the average value of all the absolute distances of the roughness profile R from the centerline within the measuring length lm. (The prescribed sample length.)

Surface Finish can then be described by usingthe roughness average (Ra) value.

Conversion – micro meters to micro inches

1 micro meter = 39.3701 micro inches1 micro inch = 0.0254 micro meters

Ra = 1

lm

x = lm

y dx

x = 0

Effect of Surface Finish on Cleaning Time

Arithmetic mean roughness value:

*Timperley and Lawson

Saunders standard surface finish designations are detailed in the table below. Importantly, allvalues are quantified as maximum Ra figures toavoid the misinterpretation associated withaverage readings.

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Standard Two-Way BodiesElectropolishing


Diagram showing stages of removing metal byelectropolishing to providethe highest surface quality

Diagram showing metalsurface profile produced by machining

The most effective method of eliminating burrs,folds, inclusions and other surface abnormalitiesis through electropolishing. This electrolyticprocess, the opposite of the plating process, isdesigned to remove metal without smearing orfolding. “Peaks” are dissolved more quickly than“valleys” as a result of the greater concentrationof current over the protrusions. This actionproduces a smoothing and rounding of thesurface profile.

Mechanical polishing or machining may leavenumerous microscopic surface imperfections whichcause areas of differing electrical potential due tosurface stresses. An electropolished surface isessentially balanced. Local corrosive cells cannot besetup, because galvanic differences caused bypolishing stresses in the stainless surfaces have beeneliminated.

*Timperley and Lawson

Electropolishing can result in up to 50% improvementin surface finish of machined or mechanically polishedsurfaces. The inherent benefits of electropolishingsubsequent to mechanical polishing can besummarized as follows:

◆ Superior surfaces for cleaning and sterilization

◆ Superior passivated surfaces for corrosionresistance by virtue of enhanced chrome oxidesurface layer

◆ Superior high-luster aesthetic appearance

◆ Superior elimination of smeared or torn surfacescaused by abrasive finishing

◆ Superior removal of inclusions and entrappedcontaminants such as lubricants and grit particles

Surface finish research* has shown that asuccession of valleys and peaks of approximately4µm in height would successfully hidecontaminating bacteria (normally quantified to0.28 µm in diameter). By comparison a highly-polished surface finish (0.25 µm) would facilitateeffective cleaning and sterilization cycles.

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SaundersStandard Two-Way BodiesValve Dimensions

Bio-Seal Sealed Bonnet Assembly

Stainless Steel Non-Sealed Bonnet Assembly (#36)

SIZE A B C D E F F F G(in.) 16swg 16swg 16swg

0.25 2.64 2.44 3.07 2.53 1.34 0.065 0.049 0.035 0.2500.38 2.64 2.44 3.07 2.53 1.34 0.065 0.049 0.035 0.3750.50 2.64 2.44 3.07 2.53 1.34 0.065 0.049 – 0.500

SIZE(in.) A B C D E

0.50 3.46 3.19 4.25 3.50 2.440.75 3.58 3.35 4.62 4.00 2.441.00 4.49 4.09 5.00 4.50 3.151.50 6.46 5.79 6.26 5.50 4.722.00 7.28 6.34 7.48 6.25 4.722.50 9.41 8.11 8.54 7.62 6.693.00 10.24 8.86 10.00 8.75 9.964.00 12.72 11.06 12.95 11.25 11.026.00 17.52 14.76 15.98 15.98 14.49

0.50" – 2.00"Bonnet Style


C (Standard Length)ButtWeld Ends

A-OPENB-CLOSED

F

∅ G

∅ E

Hygienic Clamp Ends

D

E∅

A-OPENB-CLOSED

D

A-OPENB-CLOSED

C (Standard Length)Buttweld Ends

A-OPENB-CLOSED

Hygienic Clamp Ends

∅ EE∅

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Standard Two-Way BodiesValve Dimensions


Stainless Steel Sealed Bonnet Assembly (#18)

SIZE(in.) A B C D E

0.50 4.33 4.06 4.25 3.50 2.440.75 4.57 4.17 4.62 4.00 2.441.00 5.75 5.20 5.00 4.50 3.151.50 7.99 7.13 6.26 5.50 5.512.00 8.35 7.20 7.48 6.25 5.512.50 8.50 7.44 8.54 7.62 5.513.00 11.34 9.65 10.00 8.75 9.84

Combination ends available as well as hose-barb, I-Line,VCR, schedule pipe, and others

SIZE(in.) A B C D E

0.50 3.98 3.70 4.25 3.50 2.440.75 4.13 3.86 4.62 4.00 2.441.00 4.80 4.41 5.00 4.50 3.151.50 6.34 5.75 6.26 5.50 3.942.00 7.40 6.46 7.48 6.25 4.412.50 8.94 7.72 8.54 7.62 6.693.00 9.92 8.46 10.00 8.75 8.66

Combination ends available as well as hose-barb, I-Line,VCR, schedule pipe, and others





C (Standard Length)

Buttweld Ends

A-OPENB-CLOSED

∅ E

A-OPENB-CLOSED

Hygienic Clamp Ends

D

E∅

E∅

A-OPENB-CLOSED

E∅

C (Standard Length)

Buttweld Ends

A-OPENB-CLOSED

Hygienic Clamp Ends

D

PES – Performance Sealed Bonnet Assembly (#50)

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SaundersCustomized Fabrication OptionsTandem Valves

Saunders Tandem Valve

◆ Full range of horizontal and vertical,drainable options

◆ Can be configured toyour exact pipe layoutwith minimum deadlegs

◆ Product transfer,purging, steamsterilization,condensate drains, CIP systems

Welded Valve Fabrications

The first and still most common customized valve concept is the tandem valve or valve and fitting combination. A main valve is ported and a section of tube is welded to the port to create an access point into the valve. This tube can in turn be welded to a second valve forming a two-valve cluster, or the tube can be turned into a buttweld, hygienic clamp or other type of fitting. The fabrication weld is polished to match the required surface finish specification. The resulting assembly is designed to optimize drainablity and meetstandard process considerations includingcGMPs for deadlegs.

Applications include flow diversion, sampling, steaminjection or condensate drain and block and bleedapplications.

The following rules help define the possibleorientation of tandem valves:

◆ The main valve and access valve may be installedto drain in either the horizontal or vertical position.When installed in a horizontal run the valve mustbe rotated into the self-drain position to drain.

◆ Allowance must be made to permit access tobonnet or actuator fasteners and for diaphragmmaintenance.

◆ The access valve can be any size including thesame size as the main valve.

◆ The amount of deadleg between main and accessvalves will vary depending on respective valvesizes and orientation. Virtually all combinations fallwithin cGMP requirements.

◆ “Handwheel opposite” designs generally haveshorter tangents than configurations with thehandwheel of the main and access valves in thesame quadrant.

◆ All Saunders welded valve fabrications are 100%hydro-tested before and after all welding andpolishing processes to ensure mechanical integrity.Full material certification of all tube and fittingsused is standard.

◆ Saunders bonnets, actuators and diaphragms fitfabricated valve assemblies without adaptors ordistance pieces.

Saunders has created electronic tools to assist ourcustomers in the selection and orientation of thesefabrications. The Saunders Tandem Valve SelectionProgram enables engineers and design detailers toselect the optimum orientation to suit systemrequirements and produce a fully coded 3D graphicfor immediate translation to valve manufacture.

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Access Valve and Access Fitting AssembliesStandard Orientations


Horizontal main at drain angle / Vertical access – primary side of center

Horizontal main at drain angle / Vertical access – secondary side of center

Horizontal main at drain angle / Horizontal access at drain angle

A01 (M406 or H0454)

Vertical main / Horizontal access at drain angle – below main center and 45° from assembly center

Vertical main / Horizontal access at drain angle – below main center

A02 (M412 or H0418) A03 (H0436) A04 (H0400)

A05 (M806 or H3254) A06 (M812 or H3218) A07 (H3236) A08 (H3200)

A09 (OM704 or H2268) A10 (OM708 or H2240) A11 (OM510 or H1432) A12 (OM502 or H1404)

A13 (L608 or V1850) A14 (L610 or V1822)

A15 A16 A17 A18

( ) Denotes former orientation number

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

23

1

23

1

2 3

1

2 3

1

23

1

23

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SaundersAccess Valve and Access Fitting AssembliesStandard Orientations

Vertical main / Horizontal access at drain angle – above main center

Vertical main / Horizontal access at drain angle – above main center and 45° from assembly center

Horizontal main / Vertical access

A19 (L602 or V1814)

Access fittings orientations

A20 (L604 or V1858)

A21 A22 A23 A24

A25 (H1836) A26 (H1818) A27 (H1854) A28 (H1800)

F29 (M6) F30 (L6)

F31 (M4) F32 (M8) F33 (OM5) F34 (OM7)

( ) Denotes former orientation number

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2 3

1

2 3

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Valve Body OptionASME BPE-Compliant 316L Forgings


Saunders 316L forged bodies with controlled sulfur havesulfur composition of only 0.005% to 0.017%, per ASMEBPE table DT-3. Conventional bodies average 0.030%sulfur.

These controlled sulfur bodies also eliminate costly tubeend extensions (see below) which reduces lead times andpaperwork requirements. Additional benefits includeimproved dimensional stability of weld-ends and improvedelectropolished finish.

Saunders buttweld bodies have integral ends with sufficient length toaccommodate orbital weld heads.

Chemical Composition ASME BPE Table DT-3 (ASTM A-182)

Element %

Carbon 0.030 max.

Silicon 1.00 max.

Manganese 2.00 max.

Nickel 12.50 min. – 13.50 max.

Chromium 17.00 min. – 18.00 max.

Molybdenum 2.50 min. – 3.00 max.

Nitrogen 0.110 max.


Sulfur 0.005 min. – 0.017 max.

Size Turnback (In.) Length (X)

0.25 0.75"0.50 1.18"0.75 1.14"1.00 1.12"1.50 1.34"2.00 1.61"2.50 1.65"3.00 1.89"

Weld installation

All Saunders body configurations aremanufactured with sufficient turnbacklength to allow for direct orbital weldinstallation and do not require tubeextensions.

Providing standard TIG orbital weldequipment is used, there is norequirement to disassemble valvesprior to installation. This is due toisolation of the heat source from the diaphragm.

X

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SaundersCustomized Fabrication OptionsValve Manifolds/Clusters

Specialized valve and actuator cluster

Customized 5-way diverter manifold

Configuration of optimum process fabricationpresents system designers with an ongoingchallenge. Minimum space envelope, reducedholdup areas, reduced cost and facilitatingease of installation are all key considerations.

All Saunders process fabrications utilize eitherforgings or machined barstock components toensure process integrity.

Saunders provides all of its customers with anexpert, yet straightforward customization servicedesigned to create the optimum valveconfiguration for their process. Our engineers canreview either sketch detail or P &ID’s (Piping andInstrumentation Drawings) and put forward aninnovative solution. Saunders will rapidly respondwith a fully detailed CAD (Computer AidedDesign) drawing for you to verify and approve.This process ensures that the product we makematches client requirements in every respect.

The benefits of such fabrications include:

◆ Manufacture by Saunders under stringent ISO 9001 quality control

◆ Tailor-made solutions to customerrequirements

◆ Fully tested assembled units manufacturedunder controlled conditions

◆ Full traceability of all components

◆ Faster field installations

Manual valve cluster

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Standard Machined Block Bodies(ZDT) Zero-Deadleg Valve “T” Pattern


Essential in the elimination of deadlegs anddesigned to ease installation and validation,Saunders Zero-Deadleg “T” pattern range(ZDT), or zerostatic tee body, makes animportant contribution in enhancing the integrity of critical systems. Machined integrally from a forging, the ZDT normally features three common ports with the samebore dimensions and incorporates a valve bodyand tee fitting into a single component. ZDTvalves form the ideal solution for feedinglaterals off recirculating loops, sample points oruse-point applications. The bodies can besupplied with weld or hygienic clamp endconnections or included in a U-bendconfiguration for point-of-use service.

Major benefits of the range include:

◆ Virtual elimination of deadleg to enhance process integrity

◆ Highly compact, space saving design providesideal solution where space is a concern

◆ Excellent drainage characteristics to facilitate quick and effective sterilization

◆ Patented design to aid validation for FDA and cGMP compliance

◆ Machined integrally from stainless steel316L/1.4435 forging (no welds)

◆ Available in size range 0.50" to 2.00" with full range of FDA conformingdiaphragm/bonnet/actuation options

Saunders ZDT*Zero-Deadleg “T” Pattern Valvesprovide excellent drainability andelimination of deadleg forprocess sampling.

* Worldwide Patents Apply

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SaundersStandard Machined Block Bodies(ZDT) Zero-Deadleg Valve “T” Pattern

* Note: 3/4" comes from 1/2" or 1" forging depending on end specification.

N(STD LENGTH)

BUTTWELD

R

P

S

OHYGIENIC

CLAMP

L J

G

K

H

L

A-OPENB-CLOSED

E∅

C-OPEND-CLOSED

∅ F

M M

Q

SIZE(in.) A B C D E F G H J K L M N O P Q R S

0.50 4.37 4.09 4.53 4.33 2.44 2.76 1.18 1.18 2.13 2.13 0.52 0.20 4.25 4.25 2.13 2.13 1.10 1.100.75* 4.37 4.09 4.53 4.33 2.44 2.76 1.18 1.18 2.13 2.13 0.47 0.24 4.25 4.25 2.13 2.13 1.10 1.101.00 5.79 5.24 6.57 6.34 3.15 4.06 1.12 1.12 2.50 2.50 0.61 0.24 5.00 5.00 2.50 2.50 0.98 0.981.50 8.03 7.13 9.09 8.54 6.26 6.02 1.34 1.34 3.13 3.13 0.96 1.15 6.26 6.26 3.13 3.13 1.14 1.142.00 8.35 7.20 9.84 9.06 7.48 6.02 1.61 1.61 3.74 3.74 1.42 0.43 7.48 7.48 3.74 3.74 1.22 1.22

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Standard Machined Block Bodies(CCB) Close-Coupled Branch Valves


Saunders Close-Coupled Branch Valve (CCB)◆ Compact flexible design providing excellent drainage

characteristics and absence of deadleg

◆ No internal fabrication welds

◆ Machined block construction provides security ofinstallation, rapid sterilization and easier regulatorycompliance

◆ Ideal solution when main process line is larger thanvalve/branch size (i.e. main line 2" valve/branch 1") utilizes 1" diaphragm/bonnet/ actuator

◆ Sampling/injection points on high purity water systems

◆ Weld ends comply with ASME BPE sulfur requirements(0.005–0.017%)

Saunders Close-Coupled Branch Valve (CCBV)directly complements the patented ZDT designby facilitating larger main line size options andproviding the ideal solution when the mainprocess line is at least one size larger than thevalve/branch size. The unique tee construction isengineered from a machined billet to enhancestructural integrity and ease installation and validation.

The CCB valve provides a straight-throughunobstructed main line flow path and will eliminatethe deadleg normally associated with welding aconventional two-way valve to a T-piece. By virtueof the weir size, the CCB offers a compact, flexibleand economic design solution.

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SaundersStandard Machined Block Bodies(CCB) Close-Coupled Branch Valves

SIZE (in.)Branch Main A B C D E F G H J K L M N O P Q

0.50 0.75 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.44 0.50 5.00 3.25 2.50 1.63 1.50 0.630.50 1.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.57 0.66 5.00 4.50 2.50 2.25 1.50 1.250.50 1.50 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.81 0.89 5.00 4.50 2.50 2.25 1.50 1.250.50 2.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.07 1.10 5.50 4.50 2.75 2.25 1.75 1.250.50 2.50 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.32 1.23 5.50 4.50 2.75 2.25 1.75 1.250.50 3.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.59 1.37 5.50 4.50 2.75 2.25 1.75 1.250.50 4.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 2.09 1.69 6.00 4.50 3.00 2.25 2.00 1.250.75 1.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 0.59 0.53 5.50 5.00 2.75 2.50 1.50 1.250.75 1.50 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 0.81 0.76 5.50 5.00 2.75 2.50 1.50 1.250.75 2.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.06 0.97 6.00 5.00 3.00 2.50 1.75 1.250.75 2.50 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.31 1.10 6.00 5.00 2.13 2.50 1.75 1.250.75 3.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.56 1.24 6.00 5.00 3.00 2.50 1.75 1.250.75 4.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 2.06 1.58 6.50 5.00 3.25 2.50 2.00 1.251.00 1.50 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 0.84 0.76 5.87 6.00 2.94 3.00 1.44 1.501.00 2.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.09 0.97 6.37 6.37 3.19 3.19 1.69 1.691.00 2.50 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.34 1.15 6.37 6.37 3.19 3.19 1.69 1.691.00 3.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.59 1.27 6.37 6.37 3.19 3.19 1.69 1.691.00 4.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 2.09 1.59 6.87 6.87 3.44 3.44 1.94 1.941.50 2.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.13 0.71 7.25 7.25 3.63 3.63 1.63 1.631.50 2.50 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.38 0.91 7.25 7.25 3.63 3.63 1.63 1.631.50 3.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.63 1.18 7.25 7.25 3.63 3.63 1.63 1.631.50 4.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 2.12 1.54 7.75 7.75 3.88 3.88 1.88 1.882.00 2.50 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 1.42 0.87 8.50 8.50 4.25 4.25 1.75 1.752.00 3.00 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 1.67 1.06 8.50 8.50 4.25 4.25 1.75 1.752.00 4.00 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 2.16 1.51 8.50 8.50 4.25 4.25 1.75 1.75

A-OPENB-CLOSED

H

G

J

P

K

N

L(STD LENGTH)

BUTTWELD

∅ E

C-OPEND-CLOSED

G

H J

K

O

Q

MHYGIENIC CLAMP

∅ F

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Standard Machined Block BodiesPoint-Of-Use OptionsClose-Coupled Branch Valve “U” Bend


Optional integral sample ports can beincluded to permit real-time samplingof WFI without breaking a sterile usepoint connection. Valves for point-of-use service can be fitted with a widevariety of end connections andorientations to meet specific systemrequirements. Alternate use-pointdesigns can be manufactured toaccommodate special centerlines,reduced envelope requirements orother design considerations.

Saunders Point-Of-Use Valve

Horizontal or vertical drain port. Significantlyreduces hold-up volume and site weldsassociated with conventional “U” bendsand branch tee assemblies.

Use Point Options

One of the most sensitive applications in a WFI loop is the use-point valve. These valvesrepresent the barrier between the safety of therecirculating loop and the potential hazards ofthe environment, and they function as the take-off point for consumption of WFI. Valves for thisdesign need the highest degree of security,integrity and cleanliness. Saunders point-of-usevalves are engineered to minimize dead areasand fully drain all associated tubing.

Sample quality directly fromwater loop with integral

back sample option.

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21

SaundersStandard Machined Block BodiesPoint-Of-Use OptionsClose-Coupled Branch Valve “U” Bend

SIZE (in.)Branch Main A B C D E F G H J K L M

0.50 0.75 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.44 3.00 0.50 7.470.50 1.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.57 3.00 0.66 7.470.50 1.50 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 0.81 3.75 0.89 8.970.50 2.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.07 4.75 1.10 10.470.50 2.50 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.32 5.50 1.23 11.970.50 3.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 1.59 6.25 1.37 13.470.50 4.00 4.21 3.98 4.37 4.17 2.44 2.76 1.20 2.19 2.09 8.00 1.69 17.000.75 1.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 0.59 3.00 0.53 8.030.75 1.50 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 0.81 3.75 0.76 9.530.75 2.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.06 4.75 0.97 11.030.75 2.50 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.31 5.50 1.10 12.530.75 3.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 1.56 6.25 1.24 14.030.75 4.00 4.49 4.09 6.14 5.83 2.44 4.06 1.23 2.38 2.06 8.00 1.58 17.581.00 1.50 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 0.84 3.75 0.76 9.901.00 2.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.09 4.75 0.97 11.401.00 2.50 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.34 5.30 1.15 12.901.00 3.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 1.59 6.25 1.27 14.401.00 4.00 5.67 5.12 6.46 6.14 3.15 4.06 1.12 2.50 2.09 8.00 1.59 17.971.50 2.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.13 4.75 0.71 12.501.50 2.50 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.38 5.50 0.91 14.001.50 3.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 1.63 6.25 1.18 15.501.50 4.00 7.80 6.93 8.86 8.31 5.51 6.02 1.33 3.13 2.12 8.00 1.54 19.052.00 2.50 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 1.42 5.50 0.87 15.032.00 3.00 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 1.67 6.25 1.06 16.532.00 4.00 8.11 7.01 9.61 8.82 5.51 6.02 1.75 3.88 2.16 8.00 1.51 20.80

A-OPENB-CLOSED

H

G

J

L

∅ E

C-OPEND-CLOSED

G

H J

L

∅ F

M

K K

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Standard Machined Block Bodies(TBV) Tank Bottom Valves


The Saunders tank bottom valve incorporatesthe performance and features of a diaphragmvalve into a one-piece, fully forged tank outletdesign. These valves are free from fabricationwelds and deadlegs, enhancing structuralintegrity and reducing the potential for processcontamination. The absence of deadlegs alsoimproves drainability, and facilitates effectivemixing. Sample valves, purge valves and portsare easily incorporated into the tank bottomdesign to achieve desired performance.

Tank bottom valve –Weld installation at the lowpoint of vessel base enablesoptimum drainage, cleaning andsterilization

Conventional purge fabrication

Internal purge optionsavailable either on vessel sideor outlet side depending onsystem requirements

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23

SaundersStandard Machined Block Bodies(TBV) Tank Bottom Valves

A-OPENB-CLOSED

35°

F

G

G

E

H-OPENI-CLOSED

35°

E

F

J∅

∅ D

C∅

D∅

SIZE(in.) A B C D E F G H I J

0.50 4.33 4.06 2.44 2.56 1.95 2.13 1.79 4.53 4.33 2.760.75 4.33 4.06 2.44 2.56 1.95 2.13 1.79 4.53 4.33 2.761.00 5.79 5.24 3.15 4.21 2.37 2.50 2.34 6.61 6.30 4.061.50 8.03 7.13 5.51 5.51 3.23 3.13 2.84 9.09 8.54 6.022.00 8.39 7.24 5.51 6.54 3.80 3.74 3.24 9.80 9.02 6.022.50 11.34 9.65 9.84 9.33 5.30 5.00 4.21 – – –3.00 11.34 9.65 9.84 9.33 5.30 5.00 4.21 – – –

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Standard Machined Block BodiesMulti-Port Diverter Valves


Diverter Valves

Modern machining technology is employed in the design and manufacture of Saunders rangeof Bio-Block diverter valves. This productbrings two or more weirs or control pointstogether in a single configuration that ismanufactured from a single block of stainlesssteel. This results in a complete design withoutinternal fabrication welds for maximum strengthwith reduced holdup volumes and no stagnantareas. On one side of the weir, there is acommon chamber, and on the other side of theweir, the flow is divided and split into multiplecontrol points. Diverter valve designs are idealsolutions whenever a process line needs to bedivided into two or more process streams orwhen multiple lines are combined into one.

Double weir diverter valves drain in horizontal and vertical orientations. Diverter valves can besupplied with either autoweld or hygienic clampends arranged to meet system designrequirements.

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25

SaundersStandard Machined Block BodiesMulti-Port Diverter Valve Configurations

Saunders multi-port diverter valveshave significant advantages overconventional multiple valve assemblies.

◆ Machined Block construction, free fromfabrication welds to enhance structuralintegrity

◆ Minimal deadleg design to reduce riskof process contamination

◆ Inlet machined integrally eliminates apotential source of contamination(many other designs employ boltedinlet)

◆ Excellent drainage characteristics forquick and effective sterilization

◆ Reduced space requirement providesgreater flexibility in system design andsimplified installation

◆ Complete sanitary solution includingFDA compliant diaphragms, manualbonnets and actuators

◆ Full size range, with comprehensivevalidation documentation on request

The Saunders diverter softwareselection program supports the multi-port diverter range. Like thetandem valve program, this electronictool enables our customers to selectthe ideal multi-port valve solutionincluding end selection and valvearrangement and then print theselection in a 3D format.

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Bio-Block Customized Design OptionsComputer Aided Engineering (CAE) Capability


Bio-Block Standard and Compound Valves

There exists in almost every process system a unique piping challenge that does not lenditself to conventional solutions. The Saundersdesign team recognizes this and has developeda philosophy of working with customers tocreate unique machined valve designs that wecall Bio-Blocks. The type of requirements thatengineers face that command these “outside the box” solutions may be driven by process,space constraints, regulatory issues or otherspecific requirements.

The key element in producing Bio-Block valvesolutions has been the development of advancedCAE (Computer Aided Engineering) design andmanufacturing tools that enable our engineers toconvert concept into reality. This approach tomanufacturing makes possible custom machinedvalve products without incurring long lead-times indesign or production. Saunders work closely withcustomers to create solutions to unique applicationchallenges.

All standard and custom Bio-Block valve bodies accept stanard Saunders diaphragms, bonnetsand actuators without modification or adaptors.The compact design of the EC actuator rangeenables Saunders to produce the most compactsolutions in the industry.

Engineering team with client

Typical CAD threedimensional image

Five axis machining center

Saunders custom Bio-Block valves replacewelded valve clusters, manifolds and valve/fittingcombinations. Machined Bio-Blocks have theadvantages of reduced wetted area anddeadlegs; no internal fabrication welds andreduced documentation for installation andvalidation. Faster and easier installation ofprocess manifolds can be achieved usingadvanced “machined from block” valves.

Tool path verification

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27

SaundersBio-Block Customized Design OptionsConceptual Approach

There are some key considerations when configuring custom “machined from block” valves.

◆ Valve centerlines

◆ Drain point of body bore and any associatedtubing

◆ Drain point of weirs

◆ Center to face dimensions

◆ Allowance for bonnet or actuator assembly and diaphragm maintenance

◆ Internal flow patterns and drain paths

◆ Minimizing deadleg area

◆ Meeting cGMP requirements

Double tandem valvemachined from solid barstock.Main weir inclined at optimumdrain angle.

Bio-Block Compound Valve Solutions

Many of today's most challenging applicationscannot be addressed by one valve configuration.Instead, a combination of two or more valveconcepts must be machined from a single blockof stainless steel to meet system requirements.

The resulting valve types are a hybrid orcompound solution that entails the use of morethan one valve concept. For example, combining a tank bottom valve with an access valve, amulti-port valve with access valves to perform assteam and condensate port or a point-of-usevalve together with a sample valve. Saundershighly trained and experienced engineering staffand modern CAD design tools combined with ourmanufacturing expertise result in custom valveconfigurations that combine utility and performance.

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Bio-Block Customized Design OptionsValve Body Designs


Bio-Block Machined Tandem Valves

This design is a machined from block version ofthe welded valve-to-valve or tandem valveassembly. Machined from a single block ofwrought stainless steel provides severalbenefits:

◆ Absence of internal fabrication welds enhancesproduct integrity

◆ Holdup volumes can be reduced

◆ Deadlegs minimized

◆ Reduced number of material certificates required

These advantages are especially realized in thesmaller sizes where valve geometry makes itdifficult to achieve cGMP requirements forminimum deadlegs.

Bio-Block Integral Steam, Purge and Condensate Porting

Rather than control steam supply andcondensate drain by means of “stand off” weldedaccess valves that may entail large designenvelopes or deadlegs, Saunders Bio-Blockvalves can be machined with integral weirsand/or ports.

Bio-Block tank manifold arrangement.Combining conventional tank bottom andZDT technology into a high integrity machinedblock configuration for Bio-Pharm vesselapplications. Cleanability, facilitated bypurging into offset weirs (sterile barrier).

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29

SaundersBio-Block Customized Design OptionsValve Body Designs

Bio-Block Controlled Inlet Option

Generally associated with multi-port designs, this option involves machining a weir at the inlet to the common chamber of a Bio-Block valve.This design permits control of flow entering intothe multi-port valve. The controlled inlet optioncan be included in any number of compound Bio-Block solutions to comply with specificsystem requirements.

Bio-Block Serial Weir Option

This concept puts two weirs in line but 180˚apart and sharing a common chamber. Thisallows the common chamber to be sterilized andform a barrier between two process flowstreams. Our customers have incorporated thisconcept in requirements as diverse as point-of-use, tank outlet and “mix-proof” applications.

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Bio-Block Customized Design OptionsValve Body Designs


Design and Installation Advantages

Bio-Block machined valve solutions are theideal complement to modular componentdesign and construction. One Bio-Blockvalve can replace a welded piping manifoldcomprised of several valves and fittingsresulting in both reduced design envelope,installation times and thus overall costsavings. All this is accomplished whilerequiring fewer welds and lessdocumentation.

Steam-cross arrangementmachined from solid barstock

Bio-Block Chromatography Valves

This Bio-Block option incorporates a centralcontrol weir to permit the division of flowinto distinct process streams or to allowflow to pass through the valve as requiredduring resin regeneration or cleaning cycles.

Typical chromatographyBio-Block arrangement

Typical steam-crossfabrication arrangement

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31

SaundersBio-Block Customized Design OptionsAdvanced Sanitary Valve Design Tools

It is important that all aspects of the application beproperly communicated between customer anddesigner ensuring that the resulting design meetsexpected performance criteria. Saunders has adoptedtools to better communicate and understand theconfiguration of unique and often complex conceptssuch as compound Bio-Block designs.

Foremost of these is the use of 3D software utility. Thiscomputer program produces a 3D model of a proposedvalve complete with a viewer in an e-mailable format thatcan be shared easily between Saunders design andapplications engineering and our customers. The 3Drepresentation of the valve design is derived from thesame program file that is used in the design and in themanufacturing of the final product.

Using this software utility our customers can select fromfive isometric 3D views or freely rotate the valve toconfirm flow paths or drainability.

Additional features include both zoom and the ability to“wire frame” the view and access the internalconfiguration.

CFD analysis of sterile barrier

manifold

CFD analysis of standard AFP forging

CFD analysis ofBio-Block five-way

diverter

Computational Fluid Dynamics (CFD)

Saunders employs the use of Computational Fluid Dynamics softwareto ensure that flow characteristics including Cv (Kv), pressure dropand flow paths meet client requirements. Actual flow paths can beviewed to eliminate low-flow areas or potential cavitation.

Trained and experienced Saunders sales and engineering staff areready to work with you to develop unique Bio-Block valve solutions.Saunders is committed to excellence in the application, design andmanufacture of custom machined valve solutions as reflected in itsinnovative and evolving range of Bio-Block valves.

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SaundersManual Bio-Pharm Bonnet AssembliesBlack PES Performance Bonnet (#50)


Padlock Option

The padlocking device can besupplied to order or is available in kitform for retro-fitting to the bonnet.

Black PES (Polyethersulphone)

Designed for the most demanding Bio-Pharm applications and featuring PES, ahigh performance thermoplastic materialwith excellent chemical resistance, ensures long life and high reliability.

Fully autoclavable, the PES bonnet isavailable across the size range 0.50" to3.00".

The PES Performance Bonnet offers several key features:

◆ High integrity, ergonomic handwheel.Design ensures comfortable operation and precise control

◆ Fully autoclavable to 150°C

◆ “O” Ring seal prevents both the escape ofproduct and the potential entry ofcontaminates

◆ Shrouded bonnet construction providesmaximum containment and diaphragmsupport for critical applications

◆ Modular options available includepadlocking device, proximity sensors, “V”-notch vent plugs and limit opening stop

◆ Fully FDA conforming materials ofconstruction

◆ Limit closing stop to prevent overclosure of diaphragm

◆ Suitable for Steam-in-Place (SIP)

Lock-Screw

Lock Washers

Handwheel

Limit-Adjust Bush

Spindle

Bonnet

Limit-Adjust BushSpindle

DN15 - DN25

Plan View2:1

Cover Cap

Limit closing stop option

A fully adjustable limit closing stop is standard to all “Performance”bonnets. The limit closure stop islocated under the handwheel and isdesigned to prevent overclosure ofthe diaphragm.

Limit open stop option

Limit open stop bonnet facilitatesmanual process flow control.

Cover Cap

Security Lock-Screw

Locking Handwheel

Locking Collar

Indicator

Locking Pin

PadlockCover Cap

Lock Washer

Lock Washer

Locknut

Handwheel

Limit adjust spindle

Set screw

Spindle

Bonnet

Limit stop nut

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Manual Bio-Pharm Bonnet AssembliesPolymer and Stainless Steel

Stainless Steel Bonnet Assembly (#36)

Constructed from materials which fulfill all FDA requirements, this bonnet offers the best possible levels of security, durability andcorrosion resistance.

◆ Represents a high integrity solution for situations where coated or plastic bonnets would be unacceptable

◆ Features smooth contours and an electropolished surface to eliminate entrapment areas

◆ Fully autoclavable up to 150°C toensure maximum levels of sterility

◆ Supplied with PES (polyether sulphone) handwheel to offer hightemperature performance and excellent chemical resistance


◆ Available in size range 0.50" to 6.00"

Biopharm Bonnet AssembliesThe best choice for your application

The unique needs of the Bio-Pharm Industryhave been considered in every aspect ofdesign. Saunders manual bonnet rangeincorporates:

◆ Hi-tech polymer materials that are lightweight and corrosion resistant

◆ Truly autoclavable models

◆ Modular options to suit all application needs

◆ Stainless steel and polymer options that are contoured for ease of cleaning

Stainless Steel Sealed Bonnet Assembly (#18)

Meeting all FDA requirements, this is the optimum solution in bonnetassemblies for the Bio-Pharm market.

◆ Constructed from all stainless steelensuring long life and providing theultimate in security, reliability andcorrosion resistance

◆ “O”-ring sealed, provides absolutecontainment for critical applications

◆ Electropolished to meet bothaesthetic and sanitary requirements

◆ Operational at temperatures up to 160°C


◆ Available in size range 0.50" to3.00"

Bio-Seal Bonnet (B29)

Available for Bio-Seal valves, thisbonnet is produced in PPS (Polyphenylenesulphide). Features include:

◆ Built in overclosure stop

◆ “O”-ring seal preventing ingress/egress of foreign material andproviding containment of processmedia

◆ 4-bolt design providing optimumsealing capability

◆ Fully autoclavable up to 150°C


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Pneumatic Valve ActuationCompact Actuators with Reliable Remote Control


Saunders EC and SSC Pneumatic Actuatorsfacilitate remote operation of the valve, eitheras a simple alternative to manual bonnetassemblies or as an integral part of the controlsystem. Both are compact piston styleactuators with excellent chemical andtemperature resistance.

The versatile and robust design derived from theuse of high technology materials of construction,results in an actuator suitable for a wide range ofprocess industry applications.

EC – PES Version

The EC is manufactured by injection moldingPES (polyethersulphone), which has atemperature range of –10° to +100°C ambient(autoclave maximum 150°C). Actuators can besupplied as spring-close, spring-open or double-acting with various spring pack options for avariety of pressure requirements.

All three operation modes, double-acting, spring-to-close and spring-to-open, feature the samephysical dimensions for a given valve size. Thisprovides uniform compact envelope dimensionsand outstanding economic benefits particularlyfor spring return, failsafe actuation.

Field conversion of manual valves to poweractuation is readily achieved “in-line” withoutspecial tools or modification.

Spring is fully relaxed during disassembly to ensuresafe maintenance of internals.

SSC – Stainless Steel Version

With the same flexibility as the EC Actuator, theSSC has been manufactured with a 316Lstainless steel investment cast housing. Suitablefor both sanitary and industrial applications theSSC provides excellent resistance for bothchemical and steam duties.

SSC ActuatorSize range: 0.25" to 2.00"

EC Actuator mounted on a ZDT valveSize range: 0.25" to 2.00"

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35

Saunders

ECX Actuator with Module SwitchboxSize range: 2.50" to 6.00"

Available in spring-to-close, spring-to-open anddouble-acting modes of operation to suitprocess needs. A wide range of optionsincluding switches, positioners, limit-stop andvisual open/close indication are also available.

ECX

Saunders ECX type actuators are designed tooffer an extension to the EC size range while stillmaintaining the compact envelope size. Thehousing is manufactured in coated siliconaluminium for optimum chemical resistance andlong life. With our extensive range of springpacks we can offer an actuator to suit a widerange of pressure and flow variations.

ECX Actuator with visual indicator Size range: 2.50" to 6.00"

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Pneumatic Valve ActuationActuators for Larger Valves


EV and ES

The EV/ES actuator range directly replacesmanual bonnet assemblies and may beordered as part of a whole valve or separatelyto convert a manual valve to automaticoperation. Installation may be carried out withthe valve body in the pipeline.

Saunders EV/ES actuators are designed withclose-coupled bonnet assemblies and havecomplete flexibility of performance. Severaldifferent actuator models may be provided foreach valve size to suit different applicationrequirements. The range allows valve closureagainst the maximum valve working pressuresand can be successfully used for modulatingcontrol duties in addition to more normalisolation functions.

Failsafe closing actuators are fully adjustable, i.e. spring compression can be externallyadjusted to provide optimum diaphragm forcesand extend diaphragm service life.

Many accessory options are available whichinclude solenoid valves and remote indicationdevices (switches or sensors) to suitenvironmental conditions such as hazardousservices. Limit stops and positioners and manyother devices may be offered to allow usagewithin particular control systems. EV/ES actuatorsare provided with a tough epoxy coating whichgives maximum durability, even in exposedlocations.

ES ActuatorSize range: 0.50" to 8.00"

EV ActuatorSize range: 0.50" to 8.00"

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37

SaundersPneumatic Valve ActuationValve Throttling and Flow Control

Saunders diaphragm valves offerexcellent control capabilities within abroad range of pressure, flow or levelcontrol applications.

Rangeability (ratio of maximum flow vs.minimum control flow) of Saunders weirtype valves is 35:1 extending beyondthe range of most process and servicecontrol systems.

The positive shut-off characteristics of the valve can, in many instances,eliminate the need for independentblock valves, a major component in thepiping system cost.

The inherent flow characteristicsillustrated shows linearity up to 60% oftravel (80% of flow).

The chart illustrates installedcharacteristics affected by the dynamicfriction loss for the remainder of thepiping system. Equal % characteristicscan be obtained through the use ofcharacterised positioners.

Pressure recovery factor = 0.7.

100

90

80

70

60

50

40

30

20

10

00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Instrument Signal psi

% M

axim

um F

low

(C

onst

ant ∆

P)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

Percent of Rated Travel

Per

cent

of R

ated

Flo

w

QUICK OPENING

LINEAR

EQUAL PERCENTAGE

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

SHUT OPEN

Percent Valve Travel

% M

axim

um F

low

(C

onst

ant

P)

% flow/% travel, weirtype diaphragm valve

Hysteresis for weirtype diaphragm valve

fitted with actuatorplus valve positioner

Diaphragm valvecharacteristic curves

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EC Pneumatic Actuators (0.25" to 2.00")Materials of Construction


EC Spring OpeningEC Spring Closing EC Double Acting

1234

5

6

7

8

12

13

14

15

16

17

18

12

91011

34

5

6

7

12

13

14

15

16 17 18

123

4

8

9

10

11

12

1314

5678

91011

Item Component MaterialMATERIALS OF CONSTRUCTION EC/SC

1 Indicator seal Fluoroelastomer2 Cap washer PES (0.25"–1.00"),

IXEF (1.50"–2.00")3 Cap PES (0.25"–1.00"),

IXEF (1.50"–2.00")4 Loading plate Mild steel5 Outer spring Steel6 Inner spring Steel7 Bonnet cap “O” ring Nitrile8 Indicator IXEF9 Outer piston seal Fluoroelastomer

10 Piston PES (0.25"–1.00"),IXEF (1.50"–2.00")

11 Inner piston seal Nitrile12 Bonnet washer PES13 Spindle seal Fluoroelastomer14 Spindle PES15 Bonnet insert PES (1.50"–2.00")16 Bonnet PES17 Line diaphragm Rubber, Rubber/PTFE18 Compressor Mazak (0.25"),

Mild Steel (0.25"), Silicon Aluminum (0.25")

Item Component MaterialMATERIALS OF CONSTRUCTION EC/SO

1 Indicator IXEF2 Indicator seal Fluoroelastomer3 Cap washer PES (0.25"–1.00"),

IXEF (1.50"–2.00")4 Cap PES (0.25"–1.00"),

IXEF (1.50"–2.00")5 Outer spring Steel6 Inner spring Steel7 Bonnet cap “O” ring Nitrile8 Spring support plate PES9 Outer piston seal Fluoroelastomer

10 Piston PES (0.25"–1.00"),IXEF (1.50"–2.00")

11 Inner piston seal Fluoroelastomer12 Bonnet washer PES13 Spindle seal Nitrile14 Spindle PES15 Bonnet insert PES (1.50"–2.00")16 Bonnet PES17 Line diaphragm Rubber, Rubber/PTFE18 Compressor Mazak (0.25"),


Item Component MaterialMATERIALS OF CONSTRUCTION EC/DA

1 Indicator seal Fluoroelastomer2 Cap washer PES (0.25"–1.00"),

IXEF (1.50"–2.00")3 Cap PES (0.25"–1.00"),

IXEF (1.50"–2.00")4 Indicator IXEF5 Outer piston seal Fluoroelastomer6 Piston PES (0.25"–1.00"),

IXEF (1.50"–2.00")7 Inner piston seal Fluoroelastomer8 Bonnet washer PES9 Spindle seal Nitrile

10 Spindle PES11 Bonnet PES12 Bonnet insert PES (1.50"–2.00")13 Line diaphragm Rubber, Rubber/PTFE14 Compressor Mazak (0.25"),


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39

SaundersSSC Pneumatic Actuators (0.25" to 2.00")Materials of Construction

SSC Spring Closing

12

3

4

5

6

7

11

12

13

14 15

8910

161718

Item Component MaterialMATERIALS OF CONSTRUCTION SSC/SC

1 Indicator seal Viton2 Cap Stainless Steel3 Outer spring Steel4 Inner spring Steel5 Indicator IXEF6 Bonnet cap “O” ring Nitrile7 Bonnet Stainless Steel8 Outer piston seal Fluoroelastomer9 Piston inner “O” ring Nitrile

10 Piston PES (0.25"–1.00"),IXEF (1.50"–2.00")

11 Spindle PES12 Spindle “O” ring Fluoroelastomer13 Thrust pad Nylatron (0.25"–0.75")14 Line diaphragm Rubber, Rubber/PTFE15 Compressor Stainless Steel16 Body/bonnet nut Stainless Steel17 Body/bonnet washer Stainless Steel18 Body/bonnet bolt/stud Stainless Steel

Item Component MaterialMATERIALS OF CONSTRUCTION SSC/SO

1 Indicator seal Viton2 Cap Stainless Steel3 Outer spring Steel4 Inner spring Steel5 Indicator IXEF6 Bonnet cap “O” ring Nitrile7 Bonnet Stainless Steel8 Outer piston seal Fluoroelastomer9 Piston inner “O” ring Nitrile

10 Piston PES (0.25"–1.00"),IXEF (1.50"–2.00")

11 Spindle PES12 Spindle “O” ring Fluoroelastomer13 Thrust pad Nylatron (0.25"–0.75")14 Line diaphragm Rubber, Rubber/PTFE15 Compressor Stainless Steel16 Body/bonnet nut Stainless Steel17 Body/bonnet washer Stainless Steel18 Body/bonnet bolt/stud Stainless Steel

Item Component MaterialMATERIALS OF CONSTRUCTION SSC/DA

1 Indicator seal Viton2 Cap Stainless Steel3 Indicator IXEF4 Bonnet cap “O” ring Nitrile5 Bonnet Stainless Steel6 Outer piston seal Fluoroelastomer7 Piston inner “O” ring Nitrile8 Piston PES (0.25"–1.00"),

IXEF (1.50"–2.00")9 Spindle PES

10 Spindle “O” ring Fluoroelastomer11 Thrust pad Nylatron (0.25"–0.75")12 Line diaphragm Rubber, Rubber/PTFE13 Compressor Stainless Steel14 Body/bonnet nut Stainless Steel15 Body/bonnet washer Stainless Steel16 Body/bonnet bolt/stud Stainless Steel

SSC Spring Opening SSC Double Acting

12

3

4

5

6

7

11

12

13

1415

12

3

4

5

9

10

11

12 13

678

8910

161718

141516

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MATERIALS OF CONSTRUCTION ECX/SC

ECX Pneumatic Actuators (2.50" to 6.00")Materials of Construction


ECX Spring OpeningECX Double Acting

1234

10111213141516

19 20 21

17,18

1011

12

1314151617

2021 22

12345

18,19

6789

222324

232425

1

2

3

Item Component Material

1 Plug Polyethylene2 Cover Silicon aluminium3 Upper spring plate SG iron4 Outer spring Steel5 Middle spring Steel6 Inner spring Steel7 Spring retaining bolt Mild steel8 Diaphragm plate Forged steel9 Operating diaphragm Rubber

10 Clamp washer Mild steel11 Lower cylinder Silicon aluminium12 Cylinder/bonnet bolt Steel13 Bonnet “O” ring Nitrile14 Bonnet/cylinder joint Klingersil15 Bonnet Cast iron16 Spindle Stainless Steel17 Compressor pin Steel18 Compressor Cast iron19 Line diaphragm Rubber, Rubber/PTFE20 Screw cover PE21 Cylinder cover screw Steel22 Cylinder cover nut Steel23 Cylinder cover washer Steel24 Body/bonnet nut Stainless steel25 Body/bonnet stud Stainless steel26 Body/bonnet washer Stainless steel

Item Component MaterialMATERIALS OF CONSTRUCTION ECX/SO

1 Cover plug Mild steel2 Cover plug “O” ring Rubber3 Spindle screw Steel4 Clamp washer Mild steel5 Upper cylinder Silicon aluminium6 Screw cover PE7 Cylinder screw Steel8 Cylinder nut Steel9 Cylinder washer Steel

10 Operating diaphragm Rubber11 Spacer ring Silicon aluminium12 Lower cylinder Silicon aluminium13 Diaphragm plate SG iron14 Spring Steel15 Cylinder/bonnet bolt Steel16 Bonnet “O” ring Nitrile17 Bonnet Cast iron18 Spindle Stainless steel19 Spindle limit pin Steel20 Compressor pin Steel21 Compressor Cast iron22 Line diaphragm Rubber, Rubber/PTFE23 Body/bonnet nut Stainless steel24 Body/bonnet stud Stainless steel25 Body/bonnet washer Stainless steel

Item Component MaterialMATERIALS OF CONSTRUCTION INDICATOR

1 Indicator cover Polycarbonate2 Indicator Polycarbonate3 Indicator “O” ring Rubber

Item Component MaterialMATERIALS OF CONSTRUCTION ECX/DA

1 Cover plug Mild steel2 Cover plug “O” ring Rubber3 Upper cylinder Silicon aluminium4 Spindle screw Steel5 Upper diaphragm plate Mild steel6 Screw cover PE7 Cylinder screw Steel8 Cylinder nut Steel9 Cylinder washer Steel

10 Operating diaphragm Rubber11 Lower diaphragm plate Mild steel12 Lower cylinder Silicon aluminium13 Bonnet “O” ring Rubber14 Cylinder/bonnet bolt Steel15 Cylinder/bonnet joint Klingersil16 Bonnet Cast iron17 Spindle Stainless steel18 Spindle limit pin Steel (6.00")19 Compressor pin Steel20 Compressor Cast iron21 Line diaphragm Rubber, Rubber/PTFE22 Body/bonnet nut Stainless steel23 Body/bonnet stud Stainless steel24 Body/bonnet washer Stainless steel

Note: Visual indicator is an optional extra on the ECX.

ECX Spring Closing

123

4

5

6

7

8

9

10

11

13

14

15

16

1718 19

242526

12

20212223

5

6789

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41

SaundersES/EV Pneumatic Actuators (0.50" to 8.00")Materials of Construction

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 Cylinder Plug Malleable Iron6 Bonnet “O” ring Rubber

Item Component MaterialMATERIALS OF CONSTRUCTION ES DA

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 Cylinder Plug Malleable Iron6 Bonnet “O” ring Rubber7 Indicator Solid Nylon 66

(natural dyed yellow)8 Indicator cover Polyamide 6-3-T

Item Component MaterialMATERIALS OF CONSTRUCTION EV DA

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 Bonnet “O” ring Rubber 6 Spring Adjusting Spindle Steel7 Cylinder Plug Malleable Iron8 Indicator Rod Steel9 Weatherproof Seal PVC

Item Component MaterialMATERIALS OF CONSTRUCTION EV SC

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 Weatherproof Seal PVC6 Spring Adjusting Spindle Steel7 Cylinder Plug Malleable Iron8 Indicator Rod Steel

Item Component Material

Item Component MaterialMATERIALS OF CONSTRUCTION ES SC

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 – –6 Cylinder Plug Malleable Iron7 Bonnet “O” ring Rubber8 Indicator Rod Steel9 Weatherproof Seal PVC

10 Handwheel Cast Iron

Item Component MaterialMATERIALS OF CONSTRUCTION ES SO

ES double acting

EV double acting EV spring closing

ES spring opening

EV spring opening

1 Operating Diaphragm Rubber2 Spindle Stainless Steel3 Compressor Cast Iron4 Line Diaphragm Rubber, Rubber/PTFE5 Spring Adjusting Spindle Steel6 Bonnet “O” ring Rubber7 Cylinder Plug Malleable Iron8 Indicator Rod Steel9 Weatherproof Seal PVC

10 Handwheel Cast Iron

MATERIALS OF CONSTRUCTION EV SO

ES spring closing

1

2

3

4

8

6

7

5

1

2

3

4

5

6

10

1

2

3

4

7

6

8

9

10

1

2

34

7

6

8

9

5

8

1

2

3

4

5

7

6

8

1

2

34

5

7

6

9

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EC / SSC / ECX ActuatorsDimensions


SIZE(in.) A B C

0.50 4.53 4.33 2.760.75 6.30 5.98 2.761.00 6.61 6.34 4.061.50 9.09 8.54 6.022.00 9.80 9.01 6.02

EC

SIZE(in.) A B C

0.50 4.53 4.33 2.760.75 6.30 5.98 2.761.00 6.61 6.34 4.061.50 9.09 8.54 6.022.00 9.80 9.01 6.02

SSC

SIZE(in.) A B C

0.25 3.43 3.23 2.280.38 3.43 3.23 2.280.50 3.43 3.23 2.28

Bio-Seal EC

SIZE(in.) A B C

2.50 12.32 10.16 10.473.00 13.98 11.81 10.474.00 14.65 12.48 10.47

ECX / Spring Open

SIZE(in.) A B C

2.50 12.72 10.55 10.473.00 13.35 11.18 10.474.00 15.04 12.87 10.47

ECX / Double Action

SIZE(in.) A B C

Heads S1, SL2, and S32.50 16.81 14.65 10.473.00 17.36 15.20 10.474.00 19.02 16.85 10.47

ECX / Spring Close

SIZE(in.) A B C

Heads L1, L2, and L32.50 18.35 16.18 10.473.00 18.94 16.77 10.474.00 20.59 18.43 10.47

ECX / Spring Close

A-OPENB-CLOSED

A-OPENB-CLOSED

C∅

C∅

A-OPENB-CLOSED

C∅

A-W/INDICATORB-NO INDICATOR

C∅

A-W/INDICATORB-NO INDICATOR

C∅

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43

SaundersES / EV ActuatorsDimensions

Model ∅ HEIGHT (TYPE AFP VALVE) – SIZE IN INCHES

Fail Safe Spring

CLOSING

Fail Safe Spring

OPENING

DOUBLE ACTING

1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" 5" 6" 8"

14.49 14.80 15.20 – 16.3415.12 15.63 16.06 – 16.81– – 18.27 19.13 19.33 19.84 20.31– – 19.17 19.88 20.20 20.63 21.02– – – – – 24.29 25.08 25.71– – – – – 26.26 26.89 27.24– – – – – – – 30.67 32.28 32.91– – – – – – – 32.52 33.98 34.61– – – – – – – – 41.38 – 44.53

8.43 8.70 10.94 – 11.77 13.0310.04 10.31 14.61 – 16.02 17.13– – – 14.72 15.12 17.48 18.90 19.02– – – 17.72 17.95 21.85 22.44 22.91– – – – – – – 20.24 21.85– – – – – – – 24.37 25.98– – – – – – – – 26.42 27.17 29.65– – – – – – – – 32.72 33.31 35.91– – – – – – – – – – 38.35 40.94

7.24 7.72 7.87 – 8.82 9.175.08 5.35 5.59 – 6.50 7.72– – – 11.30 11.93 12.28 12.87 13.39 14.84– – – 8.46 8.70 9.13 9.65 10.12 11.42– – – – – – – 14.17 15.63 16.22– – – – – – – 11.73 13.27 13.78– – – – – – – – 17.20 17.80 20.43– – – – – – – – 13.98 14.57 17.17– – – – – – – – – – 18.19 20.87

EV61 6.61ES61 6.61EV62 10.24ES62 10.24EV63 12.52ES63 12.52EV64 16.73ES64 16.73ES65 21.61



Dimension table shows diameter/width (in inches) of actuators and the maximum height of the actuator from thecenter of the valve flange or pipeline. The dimensions shown are to aid planning.

∅ = Actuator Diameter/Width

ESO 68-72

ESDA 54-58

ESC 61-65

EVC 61-64

EVO 68-71

EVDA 54-57

Ø

H

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ActuatorsAccessories


MODEL SIZE RANGE STYLE MATERIAL SOLENOID SWITCH BOX POSITIONER AIR FILTER HANDWHEEL

EC 0.25"–2.00" A, AFP PES ✓ ✓ ✓ ✘ ✘

SSC 0.25"–2.00" A, AFP 316 C12 ✓ ✓ ✓ ✘ ✓

ECX 2.50"–6.00" A, AFP SiAl Coated ✓ ✓ ✘ ✓ ✘

EV 0.50"–6.00" A, AFP, KB SiAl Coated ✓ ✓ ✓ ✓ ✘

ES 0.50"–8.00" A, AFP, KB SiAl Coated ✓ ✓ ✓ ✓ ✓

✓ = Available and ✘ = Not available

For control applicationon the EC and SSC, theVIAPOS mini offers bothpneumatic, electro-pneumatic and digitalinputs with sensorfeedback option andlinear mounting designproviding a compactcontrol solution.

This modular switchboxoption is available forEC/SSC & ECX actuatorranges. The switchboxoffers a wide range ofV3 mechanical andproximity sensors withspace for up to 4switches, integralsolenoid valve,instrinsically safe options& ASI* interface.

*ASI Interface can be retrofitted.

Suitable for both the EC and SSC. This lowcost switchbox offers remote, open and closedindication of the valve position. Available withtwo V4 mechanical or proximity switches andintrinsically safe options.

Overview

Mini Positioner

A

Mark IV Switchbox Mini Viatech Switchbox

Other control optionsinclude: Solenoid Valves,Moore and Echhardtpositioners, Asco andWestlock switches andfieldbus devices.

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45

SaundersActuatorsAccessories

Manufactured frompolyester coatedaluminum. Thisswitchbox is used forthe ES and EV linearactuators. It has thecapability for up to 4 switches and canincorporate internalsolenoid valve and ASI system.

The EC/SSC limit-opening option canprovide limited valveopening and can beeasily retrofitted inthe field.

1

2

S DANGER

OUTLET

SUPPLY

NPT 1/4"1/8"

FILTERPLUGWARNINGDO NOT REMOVETHE PLUG WHEN THEUNIT IS PRESSURIZED

NPT 1/8"

Providing precise controlof the flow through thevalve. This long lifecorrosion resistant rangesuits a wide variety ofapplications withreliability and accuracy.Available as pneumatic,electro pneumatic,intrinsically safe andexplosion proof,together with a varietyof feedback options.

SSC Manual Over-Ride

007 Switchbox

ES Positioner

EC & SSC Limit-Open Stop

SSC can be suppliedwith an emergencymanual overridemanufactured fromstainless steel. Pleasecontact the factory forfurther information.

Shown mounted to ES Actuator

Shown mounted to ES Actuator

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ALLDIAPHRAGMS

CONFORM TO FDA

REGULATIONS

Sanitary Type Diaphragm ValvesDiaphragms for Sanitary Applications


The Diaphragm – Key to Successful Valve Performance

Saunders continues to lead the diaphragm valve industry in the development andmanufacture of elastomer components basedon our in-house core competence in rubber and plastic technologies.

The diaphragm is the key performancecomponent within a diaphragm valve. The diaphragm forms both the differential andatmospheric seal and isolates the topworksfrom the process media. As the innovator andleader in diaphragm valves, we continuouslydevelop our diaphragm technology and remainthe only manufacturer to have front to backownership of all aspects of polymer researchand development, diaphragm design and production.

Saunders offers a full range of diaphragmselections engineered to meet the exactingdemands of the pharmaceutical industry.PTFE, modified PTFE and elastomer typesare available to suit individual systemrequirements.

The main categories ofsanitary diaphragms are:

Synthetic elastomer – black internallyreinforced grades

◆ Grade 300 – Butyl

◆ Grade 425 – EPM,peroxide cured

◆ Grade E3 – EPM,peroxide cured,post cured.

Synthetic elastomer – white internallyreinforced grades

◆ Grade 500 – Silicone

PTFE

◆ PTFE virgin grade white, grade 214 witheither 300 or 425backing support

◆ PTFE modified gradewhite, grade 214S with 425 backing foruse on intermittentsteam applications.

All Saunders sanitary diaphragms are formulated in-house and manufactured from FDA conformingmaterials to meet the requirements of CFR (Codeof Federal Regulations) Chapter 1 Title 21 and aretested and certified to USP Classes V and VI.Certificates of Conformity to FDA and USP areavailable upon request.

To assist in the validation process and to providethe highest level of reliability, security andregulatory compliance, Saunders provides fullbatch traceability for all grades of sanitarydiaphragms.

Key elements in diaphragm design and selectioninclude media compatibility, levels of extractables,flex and closure performance, resistance tocompression set, longevity and regulatoryconformance. Saunders elastomer technology andapplication engineering specialists are available toconsult on specifics of material selection.

The Saunders range of FDA conformingdiaphragms has been designed to meet thehighest standards of performance and reliabilitybased on current elastomer and plasticstechnology. Equally important is the associateddocumentation support to assist regulatorycompliance and aid plant and system validation.Only Saunders matches the quality andperformance of its diaphragms with the higheststandard of documentation and validation supportavailable in the industry.

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47

SaundersSanitary Type Diaphragm ValvesDiaphragm Design and Performance

D 300 Resin cured butyl rubber Black 1/4"–8" -30 to 130 62–68° 12.9 ✓ ✓ ✓(isobutylene/isoprene)

E2 425 Ethylene Propylene, co-polymer Black 1/4"–4" -40 to 140 61–67° 12 ✓ ✓ ✓peroxide cured

E3 E3 Ethylene Propylene, co-polymer Black 1/4"–4" -40 to 140 61–67° 12 ✓ ✓ ✓peroxide cured, post cured

P2 214/425 PTFE/EPM backed White facing, 1/4"–8" -20 to 160 – – ✓ ✓ ✓black backing

S5 214S/425 PTFE/EPM backed for steam White facing, 1/4"–8" -20 to 160 – – ✓ ✓ ✓black backing

S1 500 Silicone DBPH cured White 1/4"–8" -40 to 150 67–73° 7.1 ✓ ✓

Part Grade Material Color Size Range Continuous Hardness Tensile ApprovalsNo. Lower–Upper Temperature IRHD Strength FDA 3A USP

Range °C Mpa Class IV Class V & VI

PTFE Diaphragms

PTFE diaphragms are twopiece construction backedwith an elastomericdiaphragm to increase theirpressure rating and durability.PTFE faced diaphragms arefitted with a bayonetconnection to reduceconnection point loading andto ensure reliable installationand maximum life.

Elastomer Diaphragms

The polymer material isbonded with a high-strength wovenreinforcement to ensuremaximum strength anddurability.

Elastomer diaphragm withthreaded connection

Diaphragm Construction

PTFE diaphragm bayonet fixing

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Sanitary Type Diaphragm ValvesDiaphragm Traceability and Validation


Full traceability and product validation

The Saunders valve range is acknowledgedthroughout the industry as a leader in qualityassurance techniques and design criteria forbiopharm processes. This has led the Saundersproduct to be taken still one step further, andthrough its range of fully traceable diaphragmsprovides its valve users with uniquely valuablesupport in the validation process.

◆ A unique molded reference number gives precisebatch traceability

◆ Access is available to all relevant physical data

◆ Diaphragms meet the most stringent validationrequirements

◆ A certificate of the physical properties of eachbatch is issued to ensure consistency andsupport validation on request

◆ A profile of the complete physical data of eachbatch is available to help troubleshooting

◆ Complete documentation package is availablefor all valve components in contact with theprocess fluids (EN 10204 3.1b certification).

Validation support

Diaphragms conform tosection 177,1550(Perfluorocarbon resins) or177.2600 (Rubber Articles) inChapter 1 Title 21 of the FDARegulations (revised 1st April2001) USP Class V and VI.

Traceable to EN10204 3.1b(was DIN 50049 3.1b)

VALIDATION PACK INCLUDES:

Certificate of Traceability

Certificate of conformity FDA

USP Certificate

Validation support – from raw materials to your system

◆ All ingredients – base polymer, filler, accelerators, etc – are manufactured from FDA conforming materials

◆ All diaphragms are fully batch traceable and carry a unique molded batch identification number

◆ All diaphragms can be issued with a certificate of FDA conformity to assist in FDAvalidation and internal quality controls

◆ Physical property data is also available upon request

Saunders diaphragms offer enhancedperformance with more confidence

◆ The integrity of the product and the quality of your process is assured. All extractables arefully identified and guaranteed to meet FDAlimits. Access to all physical data is availableupon written request.

Expert and independent verification

◆ Saunders has worked with the Rubber and Plastics Research Association (RAPRA) toprovide complete and detailed identification of extractables and leachables – leading the wayand reaffirming our commitment to ourcustomers and the industry.

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49

SaundersSanitary Type Diaphragm ValvesDiaphragm Traceability and Validation

Molded and coined to provideoptimum flex life

Reinforcing materialto ensure maximumstrength in eitherpositive or vacuumpressure duties

Stud anchorage is fullyencapsulated to ensuremaximum strength andlife rating of thediaphragm

Less deformationfor longerdiaphragm life

Proven manufacturing process

1237/011234/01

1234/01 1236/01 1237/011235/01

Blend make-up of raw material, usually 30kg each, weighed out

RUBBER BLENDIndividual make-ups are mixed together to form a blend of up to 180kg and identified by a numeric system 01 and upwards

Full physical testing to

confirm within specification

allendered into liners, continuous rubber sheet in rolls of 100m lengths

Liner is cut to length for construction of diaphragm

TRACEABLE DIAPHRAGM

•

•

••

Blend No. Year

Size

TOP

BOTTOM

Top

Bottom

GradeIdentification

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DiaphragmsUSP Approval, EPDM and EPM Grades


USP Approval

Saunders sanitary range now incorporates a fullrange of Elastomer and PTFE FDA conformingdiaphragms that fulfill the rigorous requirementsof USP* Class V and VI accreditation whichindicates that products are fit for medical use(implant or injectable).

The stringent systemic and implant toxicity testingregimes associated with USP Class VI mean thatcustomers can be fully confident in the quality of theirprocessing. For added confidence, however, and togive further assurance that the polymer element ofthe valve as well as the valve body itself meet thehighest standards of integrity, toxicity testing wasundertaken by an independent authority.

USP Class VI approval applies to Saunders’Elastomer and PTFE diaphragms already in serviceas well as those that may be installed in the future,and adds one more benefit to the establishedadvantages of using Saunders products from CraneProcess Flow Technologies. Weare proud to declare that weemploy polymer scientistsengaged in research,development and manufacture ofour diaphragm range. This enablesus to manufacture all elements ofthe diaphragm in-house and givesus total control of every aspect ofmaterial content, design andproduction. It also assures customersthat they are using products ofunrivalled reliability that extend servicelife and minimize downtime.

Grade 425 EPM Diaphragms

Designed specifically for the mostdemanding biopharmaceutical applications,the 425 EPM elastomer diaphragm providesoptimum process security. Manufactured fromEPM (a copolymer of ethylene-propylenemonomers), this compound uses the latestvulcanization technology coupled with the inherentstability of the copolymer to eliminate “weak points”associated with traditional solutions. Used widely inbiopharm on aqueous media, CIP fluids, dilute acidsand steam duties.

* United States Pharmacopeia

Purity for Demanding Biopharm ProcessesSaunders EPM diaphragms

Ethylene Propylene Monomer (Grade 425) has goodmechanical properties and is resistant to aging, ozone,oxygen and ultra-violet radiation. The diaphragm iscured with an organic peroxide rather than the morecommonly used sulfur to optimize product purity.

Used in biotech and pharmaceutical industries onaqueous media with good resistance to steam and CIP fluids, chlorinated caustic and dilute acids.

Approved to USP Class V and VI. Fully traceableto EN 10204 3.1b

The range also includes the E3 EPM elastomerdiaphragm which gives complete confidence that

process product is free fromleachables and extractables.Manufactured from EPM(Ethylene PropyleneMonomer), the diaphragm issubjected to a post curingprocess to enhance polymer

cross-linking and reduce thelevel of extractables. Theresult is improved productpurity with minimal or zero

contamination. Lasting longerthan conventionally producedelastomer diaphragms, the E3 EPM also provides betterreliability and therefore less

disruption to your processes.

The E3 EPM has more qualityapprovals than any other grade

of diaphragm available today. It actually exceeds current FDA

inspection criteria, which means itcan replace existing EPDM type diaphragms withoutany need for FDA revalidation.

The E3 EPM has been specifically designed inconjunction with leading pharmaceutical manufacturers to:

◆ Overcome the problem of sulfur leachables which can be introduced through conventionalvulcanization process

◆ Improve product purity

◆ Provide a longer life alternative to traditionaldiaphragms

◆ Fully support and simplify the validation process.

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51

SaundersDiaphragmsPTFE Grades

Less Deformation for Longer Diaphragm Life

The PTFE 214S diaphragm has been designedspecifically to improve performance in applicationswhere steam is present. It displays improvedelastic modulus at high temperature, resulting inless movement due to the effects of cold and hotflow. Indeed, the increased resistance to creepand cold flow of the 214S grade at elevatedtemperatures make the 214S diaphragm theoptimum choice for environments, which call forintermittent steam.

The Saunders range of FDA, USP Class V and VIdiaphragms, which includes the PTFE 214S, hasbeen designed to meet the highest standards ofreliability and quality today. Equally important,however, they are supplied with supportingmaterial that will help you meet your regulatoryrequirements in full. Only Saunders sanitarydiaphragms match the quality of its products withthis high standard of documentation to providecomplete support in meeting the demands ofFDA validation of plant and process.

Improved life rating

Users of diaphragm valves within the Bio-Pharmindustry can achieve major processing advantagesusing the PTFE 214S diaphragm. An innovativeformulation means that it can stay in service up tofour times longer than conventional PTFE diaphragmswithout deformation. The net result is less time spentroutinely replacing diaphragms and, consequently,fewer interruptions in process run time.

By virtue of its material properties, standard PTFE tends to creep or flow intothe body of the valve following steam sterilization. This occurs when avacuum is created in the system as the steam condenses. The resultingdeformation, over time, reduces the valve’s flow capacity, necessitatingregular changes of the diaphragm.

Type 214 PTFE (polytetrafluoroethylene) diaphragms

◆ Fully fluorinated carbon backbone

◆ Widest temperature range of any polymer

◆ Inert to corrosive chemicals, only attackedby molten alkali metals, fluorides ofchlorine or oxygen and free fluorine

◆ Low coefficient of friction – excellent anti-stick properties

PTFE – % Deformation under pressure at 150°C after 100 hour loading

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DiaphragmsDesign and Peformance


Temperature and pressure are the major limitations of valve operating capability although there can bemany other aspects of a process specification that could affect both valve and diaphragm life. It istherefore essential with any valve selection to provide the fullest process and operating details such asoperating cycles, speed of temperature fluctuations, sterilizing fluids, steam sterilization temperaturesor any other parameter that may be present.

The Saunders sanitary diaphragm range has the following temperature and pressure characteristics:

Type AFP – Maximum Rated Working Pressure (PSI)

-20° 214/425 & 214S/425 160°

-20° 214/300 & 214S/300 150°

-40º E3 140°

-30° 300 130°

-40° (500) GRADE 150°

Diaphragm Temperature (C°)

Valve Body Temperature/Pressure Relationship

-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C 160°C 180°CPR

ES

SU

RE

(PS

I)

240

210

180

150

120

90

60

30

MAXIMUM FOR VALVES 0.25"--2.00"

TEMPERATURE

MAXIMUM FOR VALVES 2.50"--3.00"AND PTFE (214) DIAPHRAGM

◆ Molded and coinedto provide optimumflex performance.

◆ Reinforcing materialto ensure maximumstrength in eitherpositive or vacuumpressure duties.

◆ Optimum studanchorage, to providemaximum bondstrength andincreased life rating ofthe diaphragm.

-40º 425 140°

DIAPHRAGM SIZE IN. 0.25 0.50 0.75 1.00 1.50 2.00 3.00

PTFE – (214) 150 150 150 150 150 150 150All elastomeric types 240 240 240 240 240 150 150

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53

SaundersType Sanitary Forged Two-Way BodiesFlow Coefficients

OD Tube

0.25" (6.35x1.63) 0.25" (12.7x1.63) 0.50" 0.75" 1.00" 1.50" 2.00" 2.50" 3.00"

% open Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv

100 0.3 0.26 2.24 1.93 2.6 2.2 5.1 4.3 12.5 9.8 27.7 24.0 61.8 52.3 82.6 71.5 165.0 142.790 0.3 0.26 2.24 1.93 2.5 2.1 5.1 4.3 12.4 9.8 26.9 23.3 59.8 50.6 80.8 69.9 163.0 141.080 0.3 0.26 2.23 1.92 2.4 2.1 5.0 4.2 12.3 9.5 25.6 22.1 57.0 48.2 79.6 68.9 140.9 121.970 0.29 0.25 2.15 1.85 2.4 2.0 5.0 4.2 12.3 9.5 24.1 20.8 51.5 43.6 76.8 66.4 132.5 114.660 0.29 0.25 1.87 1.61 2.3 1.9 4.8 4.0 10.9 9.3 23.7 20.5 48.2 41.6 74.0 64.0 126.4 109.350 0.29 0.25 1.54 1.33 2.3 1.9 4.3 3.6 8.8 8.8 23.0 19.9 45.6 39.45 72.1 62.4 122.6 106.140 0.29 0.25 1.27 1.09 2.0 1.7 3.7 3.1 6.9 7.8 18.9 16.3 43.4 36.7 70.7 61.2 113.6 98.330 0.29 0.25 0.89 0.77 1.7 1.4 2.9 2.5 4.3 6.3 14.2 12.3 31.8 26.9 53.2 46.0 83.1 71.920 0.27 0.23 0.53 0.46 1.2 1.0 2.0 1.7 2.1 4.6 9.3 8.0 20.2 17.1 32.9 28.5 45.7 39.510 0.21 0.18 0.21 0.18 0.5 0.5 1.1 0.9 0.4 3.0 4.0 3.5 7.6 6.4 12.3 10.6 20.5 17.7

Tolerance +/- 10% Cv units – US gallons/minute Kv units – Cubic meters/hour

Every Saunders product supplied to our customersis uniquely laser etched with order reference, itemnumber and quantity. This provides a validationreference against the full product specification and provides the end customer with completeassurance/confidence in the solution provided.Furthermore, any retrospective need for certificationcan be met given the laser etch referenceinformation.

Size Turnback (In.) Length (X)

0.25 0.75"0.50 1.18"0.75 1.14"1.00 1.12"1.50 1.34"2.00 1.61"2.50 1.65"3.00 1.89"

Weld installation

All Saunders body configurations are manufactured with sufficient turnback length to allow for direct orbital weld installation and do notrequire tube extensions.

Providing standard TIG orbital weld equipment is used, there is no requirement to disassemble valves prior to installation. This is due to isolation of the heat source from the diaphragm.

Saunders 316L forged bodies with controlled sulfur have sulfurcomposition of only 0.005% to 0.017%, per ASME BPE table DT-3.

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Saunders Sanitary Diaphragm ValvesApplications


◆ Saunders is a key player inthe evolution of high purityvalve technology

◆ The top ten pharmaceuticalcompanies in the worldhead our internationalcustomer base

◆ Apart from diaphragmvalves for the asepticsector, Saunders offers anextensive range of valvesdesigned for industrialapplications. Dedicatedliterature and further detailsare available from yourlocal supplier.

YEAST

BIOTECHNOLOGY

FINE CHEMICALS

CHROMATOGRAPHY

COSMETICS

INJECTABLES

WFI

CIP

CELL CULTURE

FERMENTATION

CLEAN WATER

PROCESS

FOOD & BEVERAGE

ULTRA FILTRATION

SERVICE/UTILITIES

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55

SaundersSaunders Sanitary Diaphragm ValvesQuality Statements and Approvals

QA

Certified Quality from Crane Process Flow Technologies

The Complete Approach to Quality

Quality Management system registered to ISO 9001 standard in which our R & D andmanufacturing processes are optimized tomaintain our product quality and service.

TUV-Merkblatt HPO Qualification for our productmanufacturing and certification.

Certified compliance to the European PressureEquipment Directive 97/23/EC authorizingSaunders to CE mark relevant valve products.

International product approval from authoritiessuch as Bureau Veritas, American Bureau ofShipping.

Polymer/Rubber materials certified as meetingthe requirements of FDA, 3A, WRAS and USP.

Validation Documentation

Saunders can supply the following validationdocumentation on request:

◆ Certification of chemical composition to EN 10204 for body material

◆ Traceability certification for diaphragm grade

◆ Full validation manual (polymers)

◆ Surface trace certification

◆ USP Class V and VI diaphragm certification

◆ FDA conformance certification for all biopharmdiaphragm grades

◆ Certificate of conformity to order specification

◆ ISO 9001 certification

◆ Certification of testing to BS 6755-1

QUALITY ASSURANCEAPPROVALS

BS EN ISO 9001

TÜV AD-MERKBLATTHPO

COMPLIANCE WITH FDA

TNO CERTIFICATION3A

cGMPUSP

FDA

USP

ISO 9001

Sanitary Product andQuality Approvals

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Saunders Sanitary Diaphragm ValvesConfiguration Schedules


Schedule 1 – Sizes:Standard Sizes: Bio-Seal Sizes:

0.500" 0.250"0.750" 0.375"1.000" 0.500"1.500"2.000"2.500"3.000"4.000"6.000"

Schedule 2 – Body Types:7 = Forged (standard bodies)8 = Cast (available in #3 finish only)9 = Bio-Seal SizesB = Machined BlockI = Integrated BlockS = Controlled Sulfur

Schedule 3 – End Types:0 = Standard TriClamp3 = 14ga. 0.083” Wall (standard for 4” valves)5 = SCH 5 Pipe7 = 20ga. 0.035” Wall8 = 16ga. 0.065” Wall (standard for 0.5" – 3” valves)9 = 18ga. 0.049” WallC = Combination-Standard Buttweld / Hygienic ClampX = SpecialA = SCH 10 PipeB = SCH 40 PipeH = 12ga. 0.102” Wall (standard for 6” valves)4 = Male Threaded NPTF = Female Threaded FNPTG = 150# ANSI Flange

Schedule 4 – Options:O = StandardA = Valve/Valve Access AssemblyC = Close Coupled Branch ValveE = Tube ExtensionsF = Valve/Fitting Access AssemblyT = ZDT Forged ValveU = Close Coupled Branch Valve “U-Bend”V = Tank Bottom Weld FlangeW = Tank Bottom Bolt FlangeX = Special

Schedule 5 – Material:6 = 316LH = HastelloyT = Titanium

Schedule 6 – Polish:7 = SFV1 20Ra Max Mech5 = SFV2 25Ra Max Mech3 = SFV3 30Ra Max Mech8 = SFV4 15Ra Max Mech/EP6 = SFV6 25Ra Max Mech/EP2 = SFV5 20Ra Max Mech/EP1 = SFV7 10Ra Max Mech/EPX = Special

CODE EXAMPLE

*1010

Diverter1

Size2

Body Type3

End Type4

Options5

Material6

Polish7

Topworks7A

Accessories8

Diaphragm9

Orientation

1 2 3 4 5 6 7 7A 8 9

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57

SaundersSaunders Sanitary Diaphragm ValvesConfiguration Schedules

Schedule 7 – Topworks:(Sizes 0.5" – 6")

11 = Iron18 = Stainless Steel – 2 “O” Ring Seals18A = Stainless Steel – 2 “O” Ring Seals (3A)36 = Stainless Steel Non-Corroding Internals36A = Stainless Steel Non-Corroding Internals (3A)50 = Black PES SealedC41 – C44 = Double-Acting ActuatorC51 – C54 = Spring-to-Close ActuatorC61 – C64 = Spring-to-Open ActuatorEC4 = Double-Acting EC Actuator (0.5" – 2”)ECX4 = Double-Acting ECX Actuator (2.5" – 6”)EC5 = Spring-to-Close EC Actuator (0.5" – 2”)ECX5* = Spring-to-Close ECX Actuator (2.5" – 6”)EC6 = Spring-to-Open EC Actuator (0.5" – 2”)ECX6 = Spring-to-Open ECX Actuator (2.5" – 6")SSC4 = Double-Acting Stainless Steel EC Actuator (0.5" – 2”)SSC5 = Spring-to-Close Stainless Steel EC Actuator (0.5" – 2”)SSC6 = Spring-to-Open Stainless Steel EC Actuator (0.5" – 2”)

(BioSeal Sizes 0.25", 0.375", and 0.5”)B29 = Polyphenylene Sulphone (PPS)B36 = Stainless SteelBEC4 = Double-Acting EC ActuatorBEC5 = Spring-to-Close EC ActuatorBEC6 = Spring-to-Open EC ActuatorBES4 = Double-Acting Stainless Steel EC ActuatorBES5 = Spring-to-Close Stainless Steel EC ActuatorBES6 = Spring-to-Open Stainless Steel EC ActuatorB29T = Polyphenylene Sulphone (PPS) ThreadedB36T = Stainless Steel ThreadedBEC4T = Double-Acting EC Actuator ThreadedBEC5T = Spring-to-Close EC Actuator ThreadedBEC6T = Spring-to-Open EC Actuator ThreadedBES4T = Double-Acting Stainless Steel EC Actuator ThreadedBES5T = Spring-to-Close Stainless Steel EC Actuator ThreadedBES6T = Spring-to-Open Stainless Steel EC Actuator Threaded

For PTFE applications, include “P” in the code. Example: “36P”.*ECX5 actuators must be sized with appropriate spring pack for application.

Schedule 7A – Accessories:Topworks Accessories:

/W = Weep Holes/V = Vent Plug/LK = Locking Kit

Actuator Accessories:/VP = Pneumatic ViaPos Positioner (EC5 Only)/VE = ElectroPneumatic ViaPos Positioner (EC5 Only)/MK4 = Mark IV Switch Package/P9 = Mark IV Proximity Switch/Slot or /S = Slotted Version/60 = 60# Spring/3A = 3A Version

Schedule 8- Diaphragm:(Sizes 0.5" – 6”)

D = Butyl Rubber (300)E2 = Black EPM, FDA (425) Peroxide CuredE3 = Black EPM, FDA (E3) Peroxide Cured, Post CuredP2 = PTFE / EPM Backed, FDA (214/425)P3 = PTFE / Viton Backed, FDA (214/226)P3S = PTFE / Viton Backed, FDA (214S/226) Steam GradeS5 = PTFE / EPM Backed, FDA (214S/425) Steam GradeSI = Silicone, FDA (500)

(Bio-Seal Sizes 0.25", 0.375", and 0.5”)BE2 = Black EPM, FDA (425) Peroxide CuredBE3 = Black EPM, FDA (E3) Peroxide and Post CuredBP2 = PTFE/EPM Backed, FDA (214/425) BP3 = PTFE/Viton Backed, FDA (214/226)BP3S = PTFE/Viton Backed, FDA (214S/226) Steam GradeBS5 = PTFE/EPM Backed, FDA (214S/425) Steam GradeBSI = Silicone, FDA (500) BE8 = Black EPM, FDA (425C) Peroxide CuredBE9 = Black EPM, FDA (E3C) Peroxide and Post Cured, ThreadedBE3T = Black EPM, FDA (E3) Peroxide and Post Cured, ThreadedBP3T = PTFE/Viton Backed, FDA (214/226) ThreadedBP3ST = PTFE/Viton Backed, FDA (214S/226) Threaded, SteamGradeBS6 = PTFE/EPM Backed, FDA (214S/425C) Threaded, SteamGradeBSIT = Silicone, FDA (500) Threaded

Schedule 9 - Access Assembly Orientations:Please refer to orientation pages for appropriate code

A01 – A28 = Valve/Valve Access AssembliesF31 – F34 = Valve/Fitting Assemblies

Schedule 10 - Diverters:D2 = 2-Way (1 Inlet – 2 Outlets)D3 = 3-Way (1 Inlet – 3 Outlets)D4 = 4-Way (1 Inlet – 4 Outlets)D5 = 5-Way (1 Inlet – 5 Outlets)

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Saunders Sanitary Diaphragm ValvesSample Model Numbers


TWO-WAY VALVE EXAMPLE

1Size

2Body Type

3End Type

4Options

5Material

6Polish

7Topworks

8Diaphragm

1.000- 7 0 0 6 8- EC5/ MK4- E2

7AAccessories

TWO-WAY VALVE / VALVE ACCESS ASSEMBLY EXAMPLE

Main Valve Information Access Valve Information Orientation Number

1.000- 7 8- EC5/ X1- E20 A 6 * 0.500- 7 8- EC5/ MK4- E20 0 6 * A01

1 2 3 4 5 6 7 7A 8 1 2 3 4 5 6 7 7A 8 9

TWO-WAY VALVE / FITTING ACCESS ASSEMBLY EXAMPLE

1.000- 7 8- EC5/ MK4- E20 F 6 * 0.500- 0- * F33

1 2 3 4 5 6 7 7A 8 1 3 9

ZERO DEADLEG (ZDT) FORGED VALVE EXAMPLE

2.000- 7 8- EC5/ MK4- E20 T 6 * 2.000 0 0

1 2 3 4 5 6 7 7A 8 1 3 3

BranchSize

BodyType

EndType

Options Material Polish Topworks DiaphragmAccessories End TypeMain RunSize

CLOSE-COUPLED BRANCH (CCB) VALVE EXAMPLE

1.000- 7 8- EC5/ MK4- E20 C 6 * 2.000- 0

1 2 3 4 5 6 7 7A 8 1 3

CLOSE-COUPLED USE-POINT (U-BEND) VALVE EXAMPLE

1.000- 7 8- EC5/ MK4- E20 U 6 * 2.000- 0

1 2 3 4 5 6 7 7A 8 1 3

TANK BOTTOM VALVE WELD FLANGE EXAMPLE

1.000- 7 8- EC5/ MK4- E20 V 6

1 2 3 4 5 6 7 7A 8

TANK BOTTOM VALVE BOLT FLANGE EXAMPLE

1.000- 7 8- EC5/ MK4- E20 W 6

1 2 3 4 5 6 7 7A 8

DIVERTER VALVE EXAMPLE

1.000- 7 8- EC5/ MK4- E20 T 6

1 2 3 4 5 6 7 7A 8

BranchSize

BodyType

EndType

Options Material Polish Topworks DiaphragmAccessories

0

3

0

3

D2-

10

DiverterType

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59

SaundersSanitary Diaphragm Valves Specifications

Body

Valve shall be weir type diaphragm valve with forged type 316L stainless steel body (ASTM A-182), with additional requirements ofsulfur content of 0.005% to 0.017% per ASME BPE table DT-3 and maximum ferrite content of 0.5%. Valve shall have integralbuttweld ends or integral hygienic clamp ends. Valve with buttweld ends shall have sufficient tangent length to accommodate orbitalwelding without the addition of welded tube end extensions. Interior surface shall conform to specified ASME BPE surface finishcode per table SFV-6. Exterior surface finish shall be as forged. Valve shall fully drain when installed in the self-drain angle asindicated by orientation marks on valve ends. Valve shall be permanently marked with heat number, pressure rating, material typeand SFV code per ASME BPE DT-V-3.1 and DT-V-3.2. Additionally, unique order reference number will be marked on valve.

Topworks

Bonnet shall be O-ring sealed, rising handwheel type with high visibility yellow position indicator. Bonnet shell and handwheel shallbe of polyethersulphone (PES) suitable for wash down protocols and autoclaving to 150° C. OD profile shall be smooth and hygienicwith enclosed fasteners when possible. Spindle, compressor and fasteners shall be stainless steel. Bonnet shall incorporate internaladjustable travel stop to prevent diaphragm overclosure. Modular design can incorporate optional features such as limit open stop,proximity sensors, padlocking device, V-notch plug.

Pneumatic actuator shall be compact piston-type with polyethersulphone (PES) housing and stainless steel air connections andfastener inserts. High visibility yellow position indicator shall be standard. Actuator shall be suitable for wash down protocols andautoclaving to 150°C. OD profile shall be smooth and hygienic with enclosed fasteners when possible. All three operational modes(double-acting spring-to-close, spring-to-open) will feature the same physical dimensions for a given valve size and can be easilyconverted to different modes. Actuator shall be of inherently safe design with no hazardous spring-load during disassembly. Modulardesign can incorporate optional features such as switch modules, solenoids, positioners, limit opening stop.

Stainless steel option available with all features as described above.

Diaphragm

E2: Diaphragm shall be peroxide cured EPM with threaded stud connection. Diaphragm shall be FDA conforming, comply to21CFR177, be third party tested and certified to USP Class V and VI, be certified ADCF (animal derived compound free) andphthalate free, and be fully lot traceable. Sealing beads shall be molded into diaphragm face and located at perimeter and acrossweir of diaphragm.

E3: Diaphragm shall be peroxide cured EPM and post cured at 240°F for 144 hours and shall have threaded stud connection.Diaphragm shall be FDA conforming, comply to 21CFR177, be third party tested and certified to USP Class V and VI, be certifiedADCF (animal derived compound free) and phthalate free, and be fully lot traceable. Sealing beads shall be molded into diaphragmface and located at perimeter and across weir of diaphragm.

P2: Diaphragm shall be two-piece leaf-type with wetted PTFE face and EPM backing cushion and be connected to compressorwith quarter-turn bayonet connection. Diaphragm shall be FDA conforming, comply to 21CFR177, be third party tested and certifiedto USP Class V and VI, be certified ADCF (animal derived compound free) and phthalate free, and be fully lot traceable. Sealingbeads shall be molded into diaphragm face and located at perimeter and across weir of diaphragm.

S5: Diaphragm shall be two-piece leaf-type with wetted modified PTFE face and EPM backing cushion and be connected tocompressor with quarter-turn bayonet connection. Diaphragm shall be FDA conforming, comply to 21CFR177, be third party testedand certified to USP Class V and VI, be certified ADCF (animal derived compound free) and phthalate free, and be fully lot traceable.Sealing beads shall be molded into diaphragm face and located at perimeter and across weir of diaphragm.

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Crane ValveSaunders Bio-Pharm

9860 Johnson Road, Montgomery, TX 77316 USA

T: (936) 588-4447

F: (936) 588-8302

www.cranesaunders.com

Saunders

Saunders is a trade-mark of Crane Co.

©2003 Crane Co.

Rev. 4-2003

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