ese 00041 en

7/25/2019 Ese 00041 En

1/30

ES E00041EN 1 2005-04

Asept ic Diaphragm Valves, Types 605, 625, 650, 687

Instruction M anual

Return to menu

7/25/2019 Ese 00041 En

2/30 3

Alfa Laval

Com pany Nam e

Declaration of Conformity

The designating company

hereby declare that

D enom ination Type Year

Address

Phone N o.

Albuen 31, DK-6000 Kolding, Denmark

+45 79 32 22 00

ASEPTIC DIAPHRAGM VALVE DIAPHRAGM VALVE 2004

is intended for installation in a m achine or application w hose com m issioning is prohibited until it has

been determ ined that this m achine / application conform s to EC D irective 98/37/EC .

H andling, assem bly and com m issioning, in addition to setting and adjustm ent of the m achine m ust be

perform ed only by authorised specialist staff.

Note!

C onnection and adjustm ents m ay only be carried out by authorised specialist staff. The m anufacturer

shall assum e no liability w hatsoever for dam ages caused by im proper or third-party actions. In case of

doubt, contact us before com m issioning.

Note on Directive 94/9/EC (ATEX Directive)

A supplem ent to D irective 94/9/EC is included w ith the product if it w as ordered according to ATEX.

Please observe the D eclaration of C onform ity.

CE Marking

According to the M achine D irective 98/37/EC (form erly 89/392/EEC ) these valves are not regarded as

m achines, how ever they can be installed into an installation that is view ed as a m achine. In this case,

the follow ing note m ust be heeded.

Note!

W e draw express attention to the fact that com m issioning is prohibited until it has been determ ined

that the m achine (plant) in w hich these products are to be installed m eets the regulations of the EC

M achine D irective 98/37/EC .

Return to menu

7/25/2019 Ese 00041 En

3/304

Return to menu

7/25/2019 Ese 00041 En

4/30

The information contained herein is correct at the time of issue but may be sub ject to change w ithout prior notice.

5

Table of contents

1. Safety .................................................................................................... 6

1.1 Im portant inform ation .......................................................................6 1.2 W arning signs ..................................................................................6

1.3 S afety precautions ...........................................................................7

2. Installat ion ............................................................................................. 8

2.1 U npacking/delivery ...........................................................................8

2.2 G eneral installation ...........................................................................9

3. Operation ............................................................................................ 11

3.1 O peration .......................................................................................11

3.2 Troubleshooting .............................................................................12

3.3 R ecom m ended cleaning ................................................................13

4. Maintenance ....................................................................................... 15

4.1 G eneral m aintenance .....................................................................15

4.2 D isassem bly/assem bly of actuator .................................................16

4.3 Assem bly/disassem bly of diaphragm , Type 605/625 ......................17

4.4 Assem bly/disassem bly of diaphragm , Type 650 .............................19

4.5 Assem bly/disassem bly of diaphragm , Type 687 .............................22

5. Technical data ..................................................................................... 24

5.1 Technical data, Aseptic D iaphragm Valve Type 605/625 .................24

5.2 Technical data, Aseptic Diaphragm Valve Type 650 ........................255.3 Technical data, Aseptic Diaphragm Valve Type 687 ........................26

6. Parts list .............................................................................................. 28

6.1 Aseptic D iaphragm Valve Type 605/625 .........................................28

6.2 Aseptic D iaphragm Valve Type 650 ................................................29

6.3 Aseptic D iaphragm Valve Type 687 ................................................30

Return to menu

7/25/2019 Ese 00041 En

5/306

1. Safety1.1 Important information1.2 Warning signs

Always read the manual before using the valve!

WARNING!

Indicates that special procedures must be follow ed to avoid severe personal injury.

CAUTION!

Indicates that special procedures must be follow ed to avoid dam age to the valve.

NOTE!

Indicates im portant inform ation to sim plify or clarify practices.

General warning:

Dangerous electrical voltage:

Caustic agents:

Unsafe practices and o ther important information are emphasized in this manual.

Warnings are emphasized by means of spec ial signs.

Return to menu

7/25/2019 Ese 00041 En

6/30 7

1.3 Safety precautions1. Safety

Installation

- Always read the technical data thoroughly (see chapter 5).- Always release com pressed air after use.

- Never touch the m oving parts if the actuator is supplied w ith com pressed air.

- Never touch the valve or the pipelines w hen processing hot liquids or w hen sterilizing.

- Never dism antle the valve w hen valve and pipelines are under pressure.

- Never dism antle the valve w hen it is hot.

Operation

- Never dism antle the valve w hen valve and pipelines are under pressure.

- Never dism antle the valve w hen it is hot.

-Always

read the technical data thoroughly (see chapter 5).

- Always release com pressed air after use.

- Never touch the valve or the pipelines w hen processing hot liquids or w hen sterilizing.


Always handle lye and acid w ith great care.

Maintenance

- Always read the technical data thoroughly (see chapter 5).

- Always release com pressed air after use.

- Never service the valve w hen it is hot.- Never service the valve w ith valve and pipelines under pressure.

- Never stick your ngers through the valve p orts if the actuator is supplied w ith

com pressed air.


All warnings in the manual are summarized on this page.

Pay special attention to the instructions below so that severe personal injury and/or damage to the valve are avoided.

Return to menu

7/25/2019 Ese 00041 En

7/308

2.1 Unpacking/delivery 2. Installation

Step 1

Tranport

The valve is only to be transported using appropriate loading

m eans:

D o not drop the valve and handle it carefully. U npack it and

then read this m anual.

The valve is packed in a recyclable cardboard box.

Step 2

Delivery and performance

CAUTION! Alfa Laval cannot be held responsible for incorrect unpacking.

C heck the goods for com pletenes and dam age im m ediately upon receipt.

The scope of delivery is apparent from the dispatch docum ents and the

design from the order num ber.

Step 3

Storage

Store the valve d ry in its original packaging. Avoid U V rays and direct sun

irradiation. The m axim um storage tem perature is +40C .

Return to menu

7/25/2019 Ese 00041 En

8/30 9

2.2 General installation2. Installation

Ensure the suitability of the valve for each respective use.

The valve must be approp riate for the piping system operating conditions (med ium, medium concent ration, temperature and

pressure) and the prevailing ambient cond itions.

Check the technical details of the valve and the materials.

Step 2

Installation of valve body:

- Ensure that the plant is depressurized and com pletely

drained.

- D econtam inate the plant, w ash it out and ventilate it.

Pay special attention to:

- Vibrations

- Therm al expansion of the tubes

- Excessive w elding

- O verloading of pipelines

Step 3

Installation of Aseptic D iaphragm Valve differs dependent on

the body:

Threaded connections/clamp connection:

Install the valve in the state it is delivered in:

- Screw the threaded connections into the piping

according to valid norm s.

- W hen assem bling the clam p connectors, insert the

respective gasket betw een body and piping connector

and join the w ith a clam p.

D ependent on the inteded use and the threaded connection

type, use appropriate seal m aterial (seal m aterial and clam p

are not included in the delivery!).

Butt weld spigots:

NOTE!D isassem ble the actuator before w elding the body into

the pipeline. The disassem bly is described in chapter 4.

O rbital w elding process is recom m ended.

Step 1

-Always read the technical data thoroughly (see chapter 5)

-Always release com pressed air after use.

CAUTION! Alfa Laval cannot be held responsible for incorrect installation.

Return to menu

7/25/2019 Ese 00041 En

9/3010

2. Installation2.2 General installation

Step 4

Connecting the control air

Assemble the control air lines tension-free and without any bends or knots!

Thread size of the control air connections: G 1/4 for actuator (diaphragm size 8-100)

For air control connections, connect the control air line to the follow ing connectors:

Control funct ion 1 (NC):C onnect the control air line to the low er connector.

Control funct ion 2 (NO): C onnect the control air line to the upper connector.

Control function 3 (A/A): C onnection of the control air line to the

- upper connector: to close

- low er connector: to open

U se appropriate connectors acording to the application.

Return to menu

7/25/2019 Ese 00041 En

10/30 11

3.1 Operation3. O peration

Step 1

-Always read the technical data thoroughly (see chapter 5).

-Always release com pressed air after use.

B efore operating the valve, check the tightness of the m edia

connections!

CAUTION!

Take precautionary m easures to avoid exceeding the m axim um

perm issible pressure from w ater ham m er pressure peaks.

Step 2

Delivery condition of the valve:

- W ith control function 1 (N C ): Closed

- W ith control function 2 (N O ): O pen

- W ith control function 3 (double acting): U nd e ned

C heck valve tightness and function before using caustic process m edia!

NOTE!W hen cleaning the pipe system using causitc the plant operator is responsible for selecting the caustic m edia and

carrying out the process.

Step 3

Service and maintenance notes

Seals and diaphragm s sink in the course of tim e. B efore

operating the valve, check the tightness of the bolts and nuts

on the body and re-tighten if necessary (follow ing operation

or, w ith C IP system s, at the latest after the rst sterilisation

process).

CAUTION!

An even compression of the diaphragm according to the

general information for elastomers (visual checking) and

expert tightening of the connecting bolts.

Return to menu

7/25/2019 Ese 00041 En

11/3012

3. O peration3.2 Troubleshooting

If the plant is new or after repairs, wash out the piping system with the valve fully open in order to remove any impurities.

NOTE!S tudy the m aintenance instructions carefully before replacing w orn parts, see section 4.1.

Problem Cause/result Repair

A ir escapes from ventilation C ontrol piston not sealing R eplace actuator

hole in the upper part

Air escapes from the hole on Spindle sealing leaky R eplace actuator and check control

the distance piece m edium for im purities.

Product escapes from the Valve diaphragm faulty C heck diaphragm for dam age,

hole on the distance piece replace if necessary

C ontrol air escapes at the C onnecting bolts betw een up per R e-tighten bolts diagonally

m em brane (betw een upper and and low er part of actuator is loose

low er part of actuator)

Valve does not open or - C ontrol pressure too low - O perate valve w ith control pressure

does not op en fully speci ed in data sheet

- Pilot valve faulty - C heck and replace pilot valve

- C ontrol m edium not connected - C onnect control air

- Valve diaphragm incorrectly - D isassem ble actuator, check

assem bled diaphragm assem bly, replace if

necessary

- Faulty actuator spring (for - R eplace actuator

control function 2 (N O ))

Valve leaks dow nstream - Product operating pressure too high - O perate valve w ith operating

(does not close or does pressure speci ed in data sheet

not close fully) - C ontrol pressure too low - O perate valve w ith control pressure

speci ed in data sheet

- Im purities betw een valve

diaphragm and valve body w eir - D isassem ble actuator, rem ove im purity,

check valve diaphragm and valve body

w eir for dam age and replace if

necessary.

- Valve body w eir dam aged - C heck valve body w eir for dam age,

replace if necessary

- Valve diaphragm faulty - C heck valve diaphragm for dam age,


- Actuator spring w rong or faulty(for control function 1 (N C )) - R eplace actuator

Valve leaks betw een actuator - Valve diaphragm incorrectly - D isassem ble actuator, check

and valve bod y assem bled diaphragm assem bly, replace if

necessary

- B olting betw een valve body - Tighten bolting diagonally

and actuator loose

- D iaphragm faulty - C heck valve diaphragm for dam age,


Valve body connection to Valve body tted incorrectly to piping C heck installation of valve body

piping leaks

Valve body leaks Valve body faulty or corroded C heck valve body for dam age, replace if necessary

Return to menu

7/25/2019 Ese 00041 En

12/30 13

3.3 Recommended cleaning3. O peration

Study the instructions carefully and pay special attention to the warnings!

NaOH = Caustic Soda.

HNO3= Nitric acid.

Step 1

Always handle lye and acid w ith great care.

Step 2

Never touch the valve or the pipelines w hen sterilizing.

Step 3

C lean the plug and the seats correctly.

Pay special attention to the warnings!

Step 4

Examples of cleaning agents:

U se clean w ater, free from chlorides.

C austic danger!

Always use Always use

rubber gloves! protective goggles!

Burning danger!

1 kg (2.2 lb) + 100 l(26.4 gal ) = C leaning agent.

N aO H w ater

2.2 l (0.6 gal ) + 100 l (26.4 gal) = C leaning agent.

33% N aO H w ater

0.7 l (0.2 gal ) + 100 l (26.4 gal ) = C leaning agent.

53% H N O3 w ater

1. 1% by w eight N aO H at 70o C (158F).

2. 0.5% by w eight H N O3at 70 o C (158F ).

Return to menu

7/25/2019 Ese 00041 En

13/3014

3.3 Recommended cleaning 3. O peration

Step 5

1. Avoid excessive concentration of the cleaning agent Dose gradually!

2. Adjust the cleaning ow to the process

Milk sterilization/viscous liquids

Increase the cleaning flow!

3. Always rinse w ell w ith clean w ater after the cleaning.

Step 6

NOTE!

The cleaning agents m ust be stored/disposed of in

accordance w ith current rules/directives.

Return to menu

7/25/2019 Ese 00041 En

14/30 15

Step 4

- If carrying out servicing w ork, check the corresponding item s for corrosion, w ear and tear and replace them as

necessary (only use genuine A lfa Laval spare parts).

- The diaphragm is an elastom er w ith speci c settling behaviour. For this reason it is necessary for the user

to check tightness and correct position of the d iaphragm regularly and, if necessary, to re-tighten the bolting

betw een valve body and actuator.

- W hen repairing and replacing parts, only use appropriate tools and genuine Alfa Laval spare parts, even in

em ergencies. O bserve the m ounting instructions for spare parts.

NOTE!

- W hen ordering spare parts, alw ays state the com plete order num ber of the valve.

- M ount the spare parts according to the enclosed operating or assem bly instructions.

4.1 General maintenance4. M aintenance

Maintain the valve regularly.

Study the instructions carefully and pay special attention to warnings!

Always keep spare rubber seals and lip seals in stock.

Step 1

- Always read the technical data thoroughly

(see chapter 5).

- Always release the com pressed air after use.

CAUTION!

All scrap m ust be stored/disposed of in accordance w ith

current rules/directives.

Step 2

- Never service the valve w hen it is hot.

- Never service the valve w ith valve and pipelines under

pressure.

Step 3

Never stick your ngers through the valve ports or touch the

m oving parts if the actuator is supplied w ith com pressed air.

Burning

danger!

Cutting

danger!

Return to menu

7/25/2019 Ese 00041 En

15/3016

4. M aintenance4.1 Disassembly/assembly of actuator

Step 1

WARNING!Risk of death or injury.

O nly w ork on a cooled dow n, depressurised plant.

Pay special attention to warnings!

Step 2

Disassembling the actuator

- M ove the actuator to the O pen position

- R em ove the actuator com plete w ith the diaphragm from

the valve body

- M ove the actuator to the C losed position (N C valves only)

- C lean all parts from product rem ains and contam ination.

D o not scratch or dam age parts during cleaning!

- C heck all parts for potential dam age

- Exchange dam aged parts (only use genuine Alfa Laval

spare parts)

Step 3

Assembling the actuator

- M ove the actuator to the O pen position

- Position the actuator w ith the m ounted diaphragm on

the valve body aligning the diaphragm w eir and valve

body w eir

- Insert and tighten the fastening bolts by hand

- M ove the actuator to the C losed position

- Fully tighten the bolts and nuts diagonally

- Ensure that the diaphragm is com pressed evenly

(approx. 10-15% , visible by an even bulge to the outside)

- C heck tightness of com pletely assem bled valve

Study the instruct ions carefully.

The items refer to the parts list section.

Handle scrap correctly.

Return to menu

7/25/2019 Ese 00041 En

16/30 17

4.3 Assembly/disassembly of the diaphragm,Aseptic Diaphragm Valve Type 605/625

Seat size 8 and 10

4. M aintenance

Prerequisite for mounting the d iaphragm on the actuator

M ount the correct diaphragm that suits the valve (diaphragm m ust be suitable for product, concentration, tem perature and

pressure).

NOTE!R em ove the actuator before m ounting the concave/convex diaphragm as described in section 4.1.

Step 2

Disassembly of EPDM, EPDM/PTFE bonded and

PTFE/EPRM 2-piece diaphragms.

Before disassembling the diaphragms, please

disassemble the actuator as described previously.

- U nscrew the diaphragm counterclockw ise (pull out

on seat size 8)

- C lean all parts of the rem ains of product and

contam ination



- Exchange dam aged parts (only use genuine

Alfa Laval parts)

Step 1


drained.

- D econtam inate the plant, w ash it out and ventilate it.

- Loosen the connections according to body type

- D isassem ble the valve carefully

Step 3

The com pressor is loose.

- Place the com pressor loosely on the actuator spindle.

- Fit the w ings into the distance piece guides

Return to menu

7/25/2019 Ese 00041 En

17/3018

4. M aintenance4.3 Assembly/disassembly of the diaphragm, Aseptic Diaphragm Valve Type 605/625 Seat size 8 & 10

Step 5

If the diaphragm is not screw ed into the adapter far enough,

the closing force is transm itted directly onto the threaded pin

and not via the com pressor. This w ill cause dam age and early

failure of the diaphragm and thus leakage of the valve.

If the diap hragm is screw ed in too far no perfect sealing at

the valve seat w ill be achieved and the function of the valve

is no longer ensured.

Step 6

NOTE! Incorrectly m ounted diaphragm m ay cause valve

leakage/em ission of product.

If there is leakage betw een the valve bod y and diaphragm ,

slightly re-tighten the bolts diagonally and observe even

com pression.

If no tightness should be achieved by this, rem ove the

diaphragm again, check the com plete valve and diaphragm

and reassem ble, proceeding as described above.

Step 4

Mounting an EPDM/PTFE bonded diaphragm withthreaded pin (seat size 10)

- Screw diaphragm clockw ise tightly into the

com pressor m anually

- C heck if the diaphragm boss ts closely in the

recess of the com pressor

- If it is dif cult to screw it in, check the thread,

exchange dam aged parts

- W hen clear resistance is felt, turn back the

diaphragm counterclockw ise until its bolt

holes are in correct alignm ent w ith the bolt holes

of the actuator.

Return to menu

7/25/2019 Ese 00041 En

18/30 19

4.4 Assembly/disassembly of the diaphragm,Aseptic Diaphragm Valve Type 650

Seat size 8-50

4. M aintenance



pressure).


Step 1

- Enusre that the plant is depressurized and com pletely

drained

- D econtam inate the plant, w ash it out and ventilate it



Step 2

Disassembly of EPDM and EPDM/PTFE bonded and

PTFE/EPDM 2-piece diaphragms.



- U nscrew the diaphragm counterclockw ise (pull

out on seat size 8)


contam ination




parts)

Step 3

The com pressor for seat size 10-50 is loose.



- The com pressor is screw ed in tight for the seat size 8.

Return to menu

7/25/2019 Ese 00041 En

19/3020

4.4 Assembly/d isassembly of the diaphragm Aseptic Diaphragm Valve, Type 650 Seat size 8-50

4. M aintenance

Step 4a

Mounting an EPDM and EPDM/PTFE bondeddiaphragm with threaded pin (seat size 10-50)








diap hragm counterclockw ise until its bolt holes

are in correct alignm ent w ith the bolt holes of the

actuator.

Step 4b

Mounting an EPDM and EPDM/PTFE bonded push-fit

diaphragm

(seat size 8)

- Place the diaphragm w ith the fastening spigot in an

inclined position at the recess of the com pressor

- Screw /push it in m anually

Step 4c

Mounting a PTFE/EPDM 2-piece diaphragm

- Invert the diaphragm face m anually using a clean,

padded m at bigger nom inal sizes.

- Position the backing diaphragm onto the com pressor

- Position the diaphragm rear face onto the backing

diaphragm

- Screw the diaphragm face clockw ise tightly into the

com pressor. The diaphragm boss m ust t closely in the


- If it is dif cult to screw it in, check the thread and


- W hen clear resistance is felt turn back the diaphragm

counterclockw ise until its bolt holes are in correct

alignm ent w ith the bolt holes of the actuator




failure of the d iaphragm and thus leakage of the valve.

If the diaphragm is screw ed in too far no perfect sealing at

the valve seat w ill be achieved and the function of the valve

is no longer ensured.

A ABB

Return to menu

7/25/2019 Ese 00041 En

20/30 21


Seat size 8-50

4. M aintenance

Step 5


leakage/em ission of m edium .

If there is leakage betw een the valve body and diaphragm ,

slightly re-tighten the b olts diag onally and observe even

com pression.

If no tightness should be achieved by this, rem ove the

diaphragm again, check the com plete valve and diaphragm

and reassem ble, proceeding as described above.

Return to menu

7/25/2019 Ese 00041 En

21/3022

4.5 Assembly/d isassembly of the diaphragm Aseptic Diaphragm Valve, Type 687 Seat size 25 - 100

4. M aintenance



pressure).


Step 3

The com pressor for seat sizes 25-100 is loose.



- The com pressor is screw ed in tight for the seat size

100.

Step 1

Removal instructions


drained

- D econtam inate the plant, w ash it out and ventilate it


- R em ove the valve w ith w elded in butt w eld spigots

from the piping using appropriate m eans


Step 2

Disassembly of EPDM, EPDM/PTFE bonded and

PTFE/EPDM 2-piece diaphragms.



- U nscrew the diaphragm counterclockw ise


contam ination




parts)

Return to menu

7/25/2019 Ese 00041 En

22/30 23


Seat sizes 25 - 100

4. M aintenance

Step 4a

Mounting en EPDM and EPDM/PTFE bonded

diaphragm with threaded pin (Seat size 25-100)








diaphragm counterclockw ise until its bolt

holes are in correct alignm ent w ith the b olt holes

of the actuator.

NOTE! Insert supporting m esh (B ) and foil (A) for seat

sizes 80 and 100.

Step 4b

Mounting an EPDM/PTFE two-piece diaphragm (Seat

size 25 -80)

- Invert the diaphragm face m anually using a clean,

padded m at bigger nom inal sizes.

- Position the backing diaphragm onto the com pressor

- Position the diaphragm rear face onto the backing

diaphragm

- Screw the diaphragm face clockw ise tightly into the

com pressor. The diaphragm boss m ust t closely in the


- If it is dif cult to screw it in, check the thread and

exchange dam aged p arts

- W hen clear resistance is felt turn back the diaphragm

counterclockw ise until its bolt holes are in correct

alignm ent w ith the bolt holes of the actuator

- Press the diaphragm face tightly onto the backing

diaphragm m anually so that it returns to its original

shap e and ts closely on the backing diaphragm .




failure of the diaphragm and thus leakage of the valve.

If the diaphragm is screw ed in too far no perfect sealing at

the valve seat w ill be achieved and the function of the valveis no longer ensured.

A ABB

Step 5


leakage/em ission of m edium .

WARNING!

If there is leakage betw een the valve body and diaphragm ,

slightly re-tighten the b olts diag onally and observe even

com pression.

If no tightness should be achieved by this, rem ove the dia-

phragm again, check the com plete valve and diaphragm and

reassem ble, proceeding as described above.

Return to menu

7/25/2019 Ese 00041 En

23/3024

5. Technical data5.1 Technical data Aseptic Diaphragm Valve 605/625

Working medium

C orrosive, inert, liquid and gaseous product w hich have no

negative im pact on the physical and chem ical properties of

the b ody and diaphragm m aterial.

The valve w ill seal in both ow directions up to full w orking

presure (gauge pressure) 100% p.

M ax. w orking tem perature ..............................................................................................150C D epending on product

w etted m aterials)

Control medium

Inert gases

M ax. tem perature of control m edium ..............................................................................40C

Filling volum e ..................................................................................................................0.02 N l

Nominal Size Max. Working pressure (bar) Control pressure Weight

(mm) EPDM/FPM PTFE NC NO + A/A g

10 4 6 5-7 bar m ax. 6 bar 300

15 8 6 5-7 bar 300

20 10 6 5-7 bar 300

All pressures are given as gauge pressures, w hen applied up stream only.

Return to menu

7/25/2019 Ese 00041 En

24/30 25

5. Technical data 5.2 Technical dataAseptic Diaphragm Valve Type 650

Working medium



the body and diaphragm m aterial.

The valve w ill seal in both ow directions up to full w orking

presure (gauge pressure) 100% p.

M ax. w orking tem perature ..............................................................................................150C D epending on product

w etted m aterials)

Control medium

Inert gases


Filling volum e Actuator seat size 8 ...........................................................0.054 N l

Actuator seat size 10 .........................................................0.186 N l




Actuator Working pressure (bar) Control pressure Weight

Code Diaphragm size EPDM/FPM PTFE NC NO + A/A g

0 8 0-8 0-6 4.5-7 bar 4.5 bar 300

1 10 0-10 0-6 4.5-7 bar 4.5 bar 900

2 25 0-10 0-6 4.5-7 bar 4.5 bar 2000

3 40 0-10 0-6 4.5-7 bar 4.5 bar 3800

4 50 0-10 0-6 4.5-7 bar 4.5 bar 8000


Return to menu

7/25/2019 Ese 00041 En

25/3026

5. Technical data5.3 Technical data Aseptic Diaphragm Valve Type 687

Working medium



the b ody and diaphragm m aterial.

M ax. w orking tem perature ..............................................................................................150C (D epending on application)

Control medium

Inert gases


Filling volum e Seat size 25 ......................................................................0.15 N l

Seat size 40 ......................................................................0.35 N l

Seat size 50 ......................................................................1.10 N l

Seat sizes 80 -100 ............................................................2.50 N l

NC NO A/A

Working pressure (bar) Control Working Control Working Control

Seat size Diaphragm material pressure pressure pressure pressure pressure

(mm) EPDM/FPM TFM (bar) (bar) (bar) (bar) (bar)

25 10 6 5-6

40 10 6 5-6 W ith soft M ax. W ith soft M ax.

50 10 6 5-6 elastom er 5.5 bar elastom er 5.5 bar

80 8 5 5.5-7 diaphragm diaphragm

100 6 4 5.5-7 0-10 bar, 0-10 bar,


Return to menu

7/25/2019 Ese 00041 En

26/30 27

Return to menu

7/25/2019 Ese 00041 En

27/3028

6.1 Aseptic Diaphragm Valve Type 605/625Seat sizes 8/10

6. Parts list

Parts list

Pos. Denomination

1 Valve body

2 D iaphragm

18 B olt

19 W asher

A Actuator

Service kits

Denomination Item number

Seat size 8Service kit EPD M 9612-9981-01

Service kit EPD M reinforced 9612-9981-02

Service kit PTFE /EPD M bonded 9612-9981-03




Return to menu

7/25/2019 Ese 00041 En

28/30 29

6. Parts list 6.2 Aseptic Diaphragm Valve 650 Seat sizes 8-50

Parts list

Pos. Denomination

1 Valve body

2 D iaphragm

18 B olt

19 W asher

20 Nut

A Actuator

Service kits










Service kit PTFE/EPD M 2 piece 9612-9981-11


Service kit PTFE/silicone 2 piece 9612-9981-26





Service kit PTFE/silicone 2 piece 9612-9981-27




Service kit PTFE /EPD M bonded 9612-9981-20Service kit PTFE/silicone 2 piece 9612-9981-28

Return to menu

7/25/2019 Ese 00041 En

29/3030

6.3 Aseptic Diaphragm Valve Type 687Seat sizes 25 - 100

6. Parts list

Parts list

Pos. Denomination

1 Valve body

2 D iaphragm

18 B olt

19 W asher

20 Nut

A Actuator

Service kits






Service kit PTFE /silicone 2 piece 9612-9981-26















Seat size 100

Service kit EPD M 9612-9981-24Service kit PTFE /EPD M bonded 9612-9981-25

Return to menu

7/25/2019 Ese 00041 En

30/30

How to contact Alfa Laval

C ontact details for all co untries are

continually up dated on our website

Return to menu

ese 00041 en

Documents