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SEMPELL SERIES MINI-S FULL-LIFT AND NORMAL SAFETY RELIEF VALVESOPERATING INSTRUCTIONS

Before installation these instructions must be fully read and understood

1 DANGER AND WARNING INDICATIONS

The construction of the Sempell safety valves corresponds to the latest state of engineering and the valid safety regulations.Nevertheless, improper use or improper installation can cause risks for personnel or can lead to restrictions in regard of the operational safety. Therefore, Sempell GmbH recommends the operator of the safety valves to take appropriate measures and make sure that the present operating instructions are read and understood by the assigned personnel.

APPLICATION LIMITSIt is only allowed to use the valves according to the details of this operating instruction and according to the parameters and application cases agreed in the delivery contract (see nameplate). The application of the valve has to take place adequate to the medium tolerances of the used materials.

ATTENTIONThis operating instruction does not specify the extent of delivery. It is valid for several sizes, designs, accessories and additional devices. Its content generally exceeds the contractual determined extent of delivery.

WARNINGS FOR THE OPERATING AND MAINTENANCE PERSONNELBefore commissioning and maintenance works familiarise yourself with the legal accident prevention regulations, the local safety instructions and this operating instruction and observe them. Use the safety valve and its individual parts and accessories only for the purpose intended by us.

Operating Instructions for Types SMC, SMB for media from -200°C to +200°C.The application temperature of 200°C may not be exceeded during normal operation. In case the valve was exposed to a higher temperature, afterwards the gaskets and, if necessary, the spring must be replaced.Nominal size DN 15 - 25 NPS ¾ - 1Nominal pressure PN 25 - 40 Class 150 - 300

Observe design data on the nameplate!

Design with• closed spring bonnet or• bellows with vented bonnet• spring-loaded (cylindrical

compression spring)

Also applicable for following accessories:• SN 104, blocking screw• disc with O-ring• cap with lifting lever• flange design optional according to

DIN or ANSI

Material specificationArea of operating

temperatures00 -10 to +200°C13 -200 to +200°CSN 124 seat gasket NBR -40 to +130°CSN 124 seat gasket FPM -15 to +200°CSN 124 seat gasket EPDM -40 to +145°C

MA.285.01.1215 E

VCIOM-02397-EN 16/02

Take the material specification and the admissible pressure from the nameplate of the valve.

www.valves.emerson.com © 2017 Emerson. All rights reserved.

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3 OPERATION

3.1 Warning indications for the operation

Observe safety regulations!


Please observe the following points besides the notes given in the text:• Danger of burning at safety valves and at

the connected pipes while operating with increased temperature.

• Disassembly of the safety valve only in case of pressureless plant and after cooling down.

• Protection against risks caused by evaporation also in case of pressureless system; for information please contact the safety inspector concerned.

• After assembly check all sealing points on tightness.

• In case of adjustment make changes at pressure screw and adjusting ring only with clearly reduced pressure to avoid unintended opening.

• Carry ear protection during adjustment, if necessary.

• Danger of injury while discharging without outlet piping.

• Extreme vibrations can lead to inadmissible increase of operating pressure with the possibly destruction of the safety valve or to the destruction of the balanced bellows with unintentional escape of medium.

Exclusion of liabilitySempell GmbH cannot be held liable in case of improper maintenance and adjustment of a Sempell safety valve, use of inadmissible spare parts or utilities and in case of a temporary or permanent connection of equipment with the safety valve which is not approved by us.

2 DESCRIPTION

Spring-loaded full lift and normal safety valves are direct acting safety valves to protect pressure tanks against inadmissible overpressure.A cylindrical compression spring creates the closing force on the valve disc against the opening pressure of the fluid upstream the valve disc. At normal operating conditions the valve seat will be held tight.By changing the spring compression it is possible to change the set pressure. In case of exceeding set pressure, the pressure of the medium prevails and the safety valve opens.With full lift characteristic the safety valve opens rapidly to full lift and relieves the total mass flow necessary to prevent further pressure increase.With normal characteristic the safety valve reaches the lift necessary for the mass flow to be discharged after response within a pressure increase of max. 10%.After a defined pressure drop, the safety valve closes again.

Use within areas exposed to danger of explosionThe safety valves underwent a hazard analysis according to Code 94/9/EC with the following result:• The safety valves do not have a potential

ignition source. ATEX 94/9/EC is not applicable to these valves.

• The safety valves may be used in the EX range.

• Electrical/pneumatical accessories have to undergo a separate assessment of conformity according to ATEX.

• The surface temperature does not depend from the valve itself but from the operational conditions. Observe while installing.

ATTENTIONUnstable behaviour of safety valves such as chattering or vibrations can destroy the valve seat, the safety valve or the pipe and thus causing the failure of the safety function or the shutdown of the plant. Therefore, observe regulations and empirical notes regarding design and dimensioning, fitting and installation.

• Design and dimensioning: do not use larger safety valves than necessary! In case of back pressure use safety valves with bellows.

• Fitting and installation: design inlet line as short as possible. Use as few bends as possible.

• Keep lines free from vibrations. Absorb or avoid pressure surges and waves, e.g. caused by pumps or other valves.

• Drain the discharge line and the valve body at their lowest point. Condensate can impair the function of the safety valve.

• Protect pipes and valve against freezing.

If available, the safety valve can be opened by hand with a system pressure of minimal 75% of set pressure by means of a lifting lever at the cap.The safety valves are type tested and comply with the requirements of the standards and regulations.

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150


3.2 Storage rulesTo preclude damages during loading and unloading move the valves cautiously.Maximal weight: 6 kgAt delivery the outsides of all ferritic parts of the safety valve are supplied with a coat of paint except the welding edges.The inside is otected by a watery corrosion preservative that has a long-term effect because of the film forming active agents.All connections are closed by corresponding caps.In this state the safety valve can be stored in closed, dust-free and dry rooms lying on a pallet without difficulties. Time of storage about six months.Storage of more than six months asks for disassembly and visual check of the inner parts of the safety valves. A weather-protected outside storage is not allowed.

• For spare parts out of elastomers(O-rings, scraper rings, rod and piston gaskets) additionally apply:

Temperature: the temperature of the storage shall be between 0°C and 25°C since otherwise a hardening of the material and so a shortening of durability will follow. Shield heating elements and lines in heated storeroom so that no direct heat irradiation arises. The distance between the heat source and the stocks has to be 1 m at least.

Moisture: to prevent the formation of condensate, avoid moist storerooms. A relative humidity of below 65% is recommended.

Lighting: the parts out of elastomers are to be protected from direct sun light and from strong artificial light with a high ultraviolet part. Therefore supply the windows of the storerooms with a red or orange (in no case blue) paint.

Ozone: protect products of elastomers against ozone (formation of cracks and embrittlement). The storeroom may not contain ozone generating systems (fluorescing sources of light, mercury vapour lamps, electric motors, etc.).

Oxygen: protect products out of elastic materials from draught by storage in airtight tanks. Oxygen causes cracking and embrittlement. If these requirements are guaranteed for products out of elastic materials the storage time is approx. 5 years.

• For spare parts out of steelStore the parts in closed, dust-free and dry rooms so that damages do not occur.

Especially the following protection measures have to take place:Disc (5): wax coat of the gasket, net coatDisc holder (6 or 6.1): protection by net coat

3.3 Installation instructions

NOTEClean pipes before installing safety valves since otherwise the valve seats can be damaged by foreign bodies when discharging!

Remove transport protection just before installation.Check plant identification and details on the nameplate.

3.3.1 InstallationThe installation zone must be easily accessible to allow necessary maintenance works. Position of installation vertical, inlet from below. Do not brace valve body when fastening.Lay piping in such a way that no static or dynamic forces or forces caused by thermal expansion may be transferred to the valve body.

NOTEStresses to the valve body may lead to leakage at the valve seat!

The free space above the valve must correspond to the measure of the drawing at least.

3.3.2 Inlet lineArrange safety valve directly at the nozzle of the tank to be protected, if possible. Otherwise lay inlet line between tapping point and safety valve as short and with as little resistance as possible.In no case the inlet pipe diameter shall be smaller than the inlet nominal size at the safety valve. The pressure drop across the inlet pipe shall not exceed 3% of the set pressure in case of the greatest possible discharge quantity.Check inlet pipe in regard of pressure vibrations according to FBR 153 as far as possible.

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ATTENTIONA pressure loss higher than the blowdown pressure may lead to an unstable, uncontrollable behaviour of the safety valve; chattering or simmer may destroy the valve seat, the safety valve or the line and thus lead to failure of the safety function or to shutdown of the plant!

ATTENTIONCondensate at the inlet of the safety valve changes the functional behaviour and may lead to an inadmissible pressure increase. Danger of explosion!

ATTENTIONHigher back pressures may lead to an unstable, uncontrollable behaviour of the safety valve; chattering or simmer may destroy the valve seat the safety valve or the line and thus lead to failure of the safety function or to shutdown of the plant!

For discharge of condensate in case of gases and vapours the inlet line must have a slope to the tapping point of 15 degrees at least.

In case of liquids with temperatures higher than the ambient temperature, the inlet line must be assembled with slope to the safety valve, or designed as a siphon-type bend in front of the safety valve. Thereby, a heat transmission to the safety valve is avoided which could impair the tightness at the valve seat.

ATTENTIONAn icy, frozen or clogged exhaust line leads to the failure of the safety function! Danger of explosion in case of excess-pressure!

CAUTIONIf several safety valves are connected to a common exhaust line, take special safety precautions for disassembling only one safety valve to exclude danger in case of unintended discharge of the other safety valves!

At the lowest point the exhaust line must be equipped with a drain which is large enough to enable the discharge of minor leaks, e. g. in case of untight valve seat. Particularly with exhaust line to atmospheric, valve body and drain must be protected against icing and freezing, e. g. by (electrical) trace heating; merely insulating is not sufficient!

Recommendation! Isolate exhaust line against noise and / or provide it with silencer; in doing so, regard allowable back pressure!

3.3.3 Exhaust lineIn no case the exhaust pipe diameter shall be smaller than the exhaust nominal size at the safety valve.For valves type SMC back pressures up to 15% of the set pressure and for valves with bellows of type SMB back pressures up to 50% are acceptable unless there are other restrictions such as mechanical loading capacity of the bellows or insufficient strength of the body connection flange.

ALLOWABLE BACK PRESSURESValve design Medium Maximal back pressureSMC Gases/vapour Superimposed back pressure constant 50% p

Superimposed back pressure variable 0% pBuilt-up back pressure 15% p

Liquid Superimposed back pressure constant 80% pSuperimposed back pressure variable 0% pBuilt-up back pressure 15% p

SMB Gases/vapour Superimposed back pressure constant 50% pSuperimposed back pressure variable 50% pBuilt-up back pressure 50% p

Liquid Superimposed back pressure constant 50% pSuperimposed back pressure variable 50% pBuilt-up back pressure 50% p

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3.3.4 InsulatingIn case of hot fluid insulate inlet line and valve body. In case of gases and vapours insulate inlet line and valve body very carefully to avoid condensate.

ATTENTIONCondensate at the inlet of the safety valve changes the functional behaviour and may lead to an inadmissible pressure increase; danger of explosion!

The bonnet shall not be insulated as with heated spring the set pressure decreases.

3.4 Pressure test of systemThe opening of safety valves must be prevented. For this purpose either remove the safety valve(s) and close the inlet pipe by means of a blind flange, or block the valve in case a test gag (SN 104) is available.

ATTENTIONWith blocked safety valves it is allowed that the test pressure amounts up to 1.5x of the set pressure without consultation of Sempell.

Therefore remove the seal screw (28) and screw in test gag (30) tightly by hand.

ATTENTIONAfter the pressure test, the ready to operation state must be restored and checked!

3.5 CommissioningThe safety valve is delivered ready to operate. The set pressure is adjusted at works and secured against unauthorized adjustments by lead seal. Higher fluid temperatures can lower the set point by approx. 1% per 100°C and require a readjustment under operating conditions.

3.8 Adjusting the set pressure

ATTENTIONA change of the lead sealed spring adjustment must only take place in the presence of the competent inspector.

The adjustment of the set pressure takes place on the test stand. If the set pressure is adjusted in the plant, the pneumatic measuring device A 143 should be applied as by means of this device the set pressure can be adjusted without increasing the operating pressure.

ATTENTIONAdjust only with lowered pressure. Working on the adjusting screw (16) may lead to unintended response of the safety valve. In case of unscrewed cap (18) some leaking medium may pass out of the top of the bonnet (9) when discharging. Danger of scalding by hot medium!

3.7 Discharge test• Use ear plugs / protection.• Slowly increase operating pressure in the

plant until the safety valve has fully opened.• Lower operating pressure until the safety

valve closes.In case of several discharge tests with hot fluid allow intermediate cooling down of the safety valve as caused by heating of the spring a slight decrease of the set pressure is possible.

ATTENTIONIn case of unscrewed cap (18) some leaking medium may pass out of the top of the bonnet (9) when discharging. Danger of scalding by hot medium!

3.6 Operational testFunction and reliability of the safety valve is proved by the type test. Therefore operational tests are generally not carried out in the plant. This is common for steam boiler safety valves only.

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Remove lead seal. Unscrew cap (18). Loosen adjusting screw nut (17).For working at the adjusting screw (16) secure disc holder (6 or 6.1) against rotation as otherwise the valve seat may be damaged. Lock thet disc holder (6 or 6.1) at the end, e. g. with a screwdriver.Tighten adjusting screw (16) (turn right): set pressure higher Loosen adjusting screw (16) (turn left): set pressure lower.After adjusting secure adjusting screw (16) with adjusting screw nut (17). Mount cap (18) and lead seal.At a quarter turn of the adjusting screw (16) the set pressure changes by approx. 10%.

3.9 FUNCTIONAL DIFFERENCESGases/vapoursOpening excess pressure + 5% p or 0.1 bar for p smaller than 3 barClosing excess pressure – 10% p or 0.3 bar for p smaller than 3 barLiquidsOpening excess pressure + 10% pClosing excess pressure – 20% p or 0.6 bar for p smaller than 3 bar

3.10 TROUBLE SHOOTINGMalfunction Cause RemediesSafety valve opens at different pressures

1. Condensate in the supply line 1. Improve insulation of line. Observe drain and slope2. Pressure change by superimposed vibration 2. Suppress vibrations at the safety valve

Safety valve opens and closes in rapid succession

1. Pressure loss in the supply line is greater than the closing pressure difference

1. Enlarge closing pressure difference. Otherwise reduce flow resistance of the supply line: Expand, shorten or remove constrictions. Fast remedy: Decrease lift (as far as allowed), therefore diminish outflow

2. Discharge quantity is too small because the subsequent flow is too small

2. Install smaller safety valve

3. Admissible back pressure is exceeded in the exhaust line 3. Decrease flow resistance of the blow-off line: e.g. by expanding or shortening the line

4. Dynamic pressure drop in the supply line, especially in case of liquids

4. Provide safety valve with a vibration damper

Closing pressure differences are too great

1. Saturated steam with high moisture 1. Install spring with a higher spring rate

Safety valve stays open after discharge test

1. Foreign bodies between body seat and disc (5) 1. In case of valves with lifting lever, lift and release it. Exhaust surge can blow off foreign bodies. Otherwise disassemble valve

Safety valve fails to close tightly

1. Valve seat damaged 1. Disassemble valve. Rework valve seat, if necessary replace disc (5)2. Difference between operating and set pressure is too small 2. Enlarge difference (section 3.7)3. Stress to the valve body caused by too high pipe forces 3. Lay line elastically4. In case of liquids with high temperature, no slope in the line

to the safety valve4. Assemble supply line with slope to the safety valve or siphon-type bend

4 INSPECTION AND MAINTENANCE WORKS

Inspection intervals depend on frequency of response and operating conditions, e.g. annually, under severe conditions twice a year. Keep certificates about performed works.

During patrols• Check the valve in regard of tightness.

Therefore observe the following indications: whistling noises, fluid emerging at the bonnet (9), fluid at the drain nozzle or in the exhaust line.

During each inspection• Check all gaskets. Replace them if leaky.• Control seat faces.• Draw off valve seat and disc (5) with fine

lapping paste; if necessary, replace disc (5).• Smooth disc holder (6 or 6.1) in the guide

areas without material abrading machining.• Check bellows (6.2) of valves type SMB.

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d2

d1

d0

h1

d0 H11 10.5 14.0d1 0,1 14.5 14.5d2 0,1 15.4 15.4h1 * 0.3 0.3


ATTENTION• Do not lubricate valve seats, metallic sealing

surfaces and the guidings at disc holder (6 or 6.1) and guide (8).

• For oxygen application all parts in contact with the medium must be free from oil and grease. Danger of explosion.

At longer intervals, e. g. every 3 years• Completely dismount safety valve.• Clean valve parts.• Rework valve seat and disc (5) with fine

lapping paste; if necessary, replace disc (5). In case of rework observe functionally important outlines at the valve seat.

• Replace spring (15) in case of corrosion or temperature damage and adjust set pressure again.

• Lubricate adjusting screw (16).• Treat fits, gaskets and thread with a lubricant

for assembly.

FUNCTIONAL IMPORTANT OUTLINES AT VALVE SEAT

Orifice letterDimensions in mm D D1

* Replace inlet nozzle if h1 is smaller than the table value.

Take the orifice letter D or D1 from the nameplate of the valve.

5 DISASSEMBLY

5.1 Danger and warning indications

ATTENTION• Wait for official authorisation and work order.• Check if the valve is pressureless and

cooled down.• Residual fluid may escape when opening and

disassembling the valve; also at pressureless plant further evaporations are possible.

5.2 Disassembling indications• For working at the adjusting screw (16)

secure disc holder (6 or 6.1) against rotation as otherwise the valve seat may be damaged. Secure disc holder (6 or 6.1) at the end, e.g. with a screwdriver.

5.3 Tools• Open-end wrench 10 - 50 mm• Seal wire, lead seal, lead-sealing pliers• Vernier calliper• Flatnose pliers• Lapping wheel according to valve seat• Side cutting pliers• Fine emery cloth• Screwdriver

ATTENTIONFor oxygen application all parts in contact with the medium must be free from oil and grease. Danger of explosion.

5.4 Operating Materials5.4.1 Lubricating the removable valve componentsTo lubricate the removable or detachable valve components during assembly, use the greases specified in Table A. Removable or detachable valve components are all screw connections, especially pressure-retaining screw connections, and other components within the distribution of forces. All removable or detachable valve components are lubricated with the same grease if they are lubricated in the assembly process.The operating temperature of the valve is definitive for selecting the grease to be applied for the removable valve components (cf. Table A).

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5.5 Dismantling of the safety valveRemove lead seal. Unscrew cap (18). Measure and record distance between upper edge of disc holder (6 or 6.1) and adjusting screw (16).Loosen nuts (17) and release spring (15) by means of adjusting screw (16). Unscrew bonnet (9). Remove washer (12), spring (15), washer (12) and pressure plate (13).Simultaneously lift off disc holder (6.1) with disc (5) and guide (8).Disassemble lifting lever in the cap (18) only if required.Dismantle the inlet nozzle (2) only if necessary. Consider that normally glue is used for locking.

5.4.2 Lapping abrasives It is necessary to use special lapping abrasives that contain finely distributed hardened particles for lapping seat surfaces on body and disk seats. The lapping abrasive specified in Tabelle B is recommended by Sempell.

5.4.3 Further operating materialsFurther required operating materials and their usage are specified in Tabelle C and are manufactured and/or supplied by the following manufacturers and/or suppliers:

TABLE B: Lapping abrasives, suitable for the finishing of valve seatsLapping abrasive: Manufacturer / Supplier:TETRABOR® Boron carbide (F 100 - F 1200)

ESK Ceramics GmbH & Co. KGMax - Schaidhauf-Str. 35, 87437 Kempten - Germany

TABLE C: Further operating materialsUsage Type Manufacturer / SupplierDegreasing agent Isopropylalkohol (2-Propanol)Assembly lubricant (colloidal graphite) for parts in contact with the medium

DAG® 156 Acheson Industries, Dornstadt

TABLE A: Greases for lubricating the removable valve componentsDesign temperature of the valve TB GreaseTB < 400°C Molykote® BR 2 Plus [1]

400°C ≤ TB < 700°C Molykote® P 37 [1]

[1] Before applying the grease, ensure that the surfaces are metallically blank (free of oil, grease, etc.) and free of dirt particles.

The greases specified in Table A are manufactured and/or supplied by the following manufacturers and/or suppliers:

Grease: Manufacturer / Supplier:Molykote® BR 2 Plus Dow Corning GmbH Wiesbaden

Rheingaustr. 34, 65201 WiesbadenMolykote® P 37 Dow Corning GmbH Wiesbaden

Rheingaustr. 34, 65201 Wiesbaden

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5.6 Disassembly and installation of disc

6 ASSEMBLY

Screw in inlet nozzle (2) into the body (1.1). In doing so, regard that a new O-ring (4) is put between inlet nozzle (2) and body (1.1). To lock the thread, it is recommended to use anaerobic glue.Mount disc (5) with disc retainer (7) into the disc holder (6 or 6.1). Insert disc holder (6 or 6.1) [if required with gasket (11)] and guide (8) into the upper part of the body (1.1). Assemble retaining ring (14), pressure plate (13), washer (12), spring (15) and washer (12) onto the disc holder (6 or 6.1).Screw on bonnet (9) with O-ring (10) and prestress spring (15) by means of adjusting screw (16) to the value measured before disassembling; in doing so, it results in same set pressure as before. Secure adjusting screw (16) with nut (17). Screw on cap (18) with O-ring (19) and lead seal bonnet (9).Treat cap with lifting lever (18/22/23) in the same way. Before positioning the cap regard that the lifting nut (20) is screwed on the disc holder (6 or 6.1) and secured with pin (21).

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8 DECLARATION TO EC-DIRECTIVE

The declaration of conformity can be found in the documentation.

7 METHODS TO PRODUCE SUPERFINISHED SEALING SURFACES

ATTENTIONLapping is a precision operation and must be carried out by trained personnel. Various operating areas ask for various operating methods.

7.1 Lapping area at workshop7.1.1 Discs, seat bushes, seat platesThe preferred method is machine lapping for these parts with flat seats.

ProcedureAllow boron carbide lapping emulsion (a mixture of grade 800 lapping powder and lapping oil) to drip onto the constantly rotating lapping wheel. Load the items to be lapped into a suitable locator that is set eccentrically to the wheel.The lapping operation takes 15 to 20 minutes depending on the quality of the prepared sealing surface. Afterwards the parts will be polished on a tin plate with a diamond suspension; grain size 2 - 3. Visual inspection and a test with an interference glass follow to check whether the surface is plane and not convex or concave. Finally the lapped parts will be cleaned.

7.1.2 Body seatsThe preferred method is hand held lapping machine in case the valve seat is installed in the body (screwed in, welded in or in another connection). Thereby it is important that the required force is constantly and steadily transferred through a spring.

ProcedureGrinding and/or lapping clothes of differing grain sizes are pasted onto a plain carrier wheel of the machine. The prepared seating areas with 3.2 Ra roughness are alternately lapped with grain sizes of 200-600-1000. After lapping with 200 grain size there should be no visible tool marks. The change takes place at intervals of about 1 minute. Lapping is carried out with oscillating movements. Finally the seating area is cleaned and visually inspected.

7.2 Lapping area site

ATTENTIONCheck body seats regularly to verify that the seat surfaces are still rectangular to the body center. If this is not the case, restore squareness by using a flat grinding machine.

As a rule, there is no lapping machine available so only a manual method or the method described in section 7.1.2 can be used.

7.2.1 Discs, seat bushes, seat platesDepending upon their size, lap these parts on glass plates or discs or rings made of grey cast iron.Lapping abrasive: Tetra Bor lapping paste (grades 100 to 1200).

ProcedureUp to a size of about 200 mm diameters lap the parts on the plates. In case of greater diameters, use the part to be lapped as a pad and move the discs or rings. Thinly distribute the lapping abrasive on one side; up grain size > 400 additionally lubricate with oil. Oscillatingly move the valve part or the lapping wheel with constant hand pressure. This operation takes several minutes. Remove the paste with a cold cleaning and repeat the procedure using progressively fine lapping paste. Finally a visual control follows.Up to a size of approx. 200 mm diameter lap the discs with a mobile manual lapping machine according to section 7.1.2.

7.2.2 Body seatsProcedure see section 7.1.2.

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1.2

14

30

28

29

18

17

16

19

12

9

15

12

13

10

8

11

6.2

6.1

5

7

1.1

4

2

3


9 PART LIST AND ASSEMBLY DRAWINGS

MINI-S WITH BALANCED BELLOWS, VENTED BONNET AND BLOCKING SCREW, TYPE SMB PARTS LISTPart Name1.1 Body1.2 Outlet flange2 Inlet nozzle3 Inlet flange4 • O ring5 • Disc6 • Disc holder6.1 • Disc holder6.2 • Balanced bellows7 Disc retainer8 Guide9 Bonnet10 • O ring11 • O ring12 Washer13 Pressure plate14 Retaining ring15 Spring16 Adjusting screw17 Adjusting screw nut18 Cap19 • O ring20 Lifting nut21 Pin22 Fork23.1 Lever23.2 Lifting shaft23.3 Threaded bush23.4 O ring24 O ring28 Seal screw29 • Gasket30 Test gag

• Recommended spare parts

12

21

20

18

17

19

16

9

12

15

12

13

10

8

22

6

23.2

5

7

1.1

4

2

3

23.3

23.1

1.2

14

23.4

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MINI-S WITH CLOSED BONNET AND LIFTING LEVER, TYPE SMC

Technical Information and Customer Service:Sempell GmbHWerner-von-Siemens-Straße41352 KorschenbroichGermanyPhone +49-2161-615-0Fax +49-2161-64761

© 2017 Emerson. All rights reserved.

manual & guides: sempell series mini-s full-lift and ... · sempell series mini-s full-lift and...

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