Stübbe MV 310 Series User manual

Diaphragm valve
Operating manual Series MV 310
Version BA-2017.10.26 EN
Print-No. 300 719
TR MA DE Rev001
ASV Stübbe GmbH & Co. KG
Hollwieser Straße 5
32602 Vlotho
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: www.asv-stuebbe.com
Subject to technical modifications.
Read carefully before use.
Save for future use.

Table of contents
Table of contents
1 About this document ............................... 4
1.1 Target groups ................................. 4
1.2 Other applicable documents ................ 4
1.3 Warnings and symbols ....................... 4
2 Safety instructions ................................. 5
2.1 Intended use .................................. 5
2.2 General safety instructions .................. 5
2.2.1 Obligations of the operating company . .... . 5
2.2.2 Obligations of personnel ..................... 5
2.3 Specific hazards .............................. 5
2.3.1 Hazardous media ............................ 5
3 Layout and Function ............................... 6
3.1 Marking ....................................... 6
3.1.1 Name plate ................................... 6
3.2 Assembly ..................................... 6
4 Transport, Storage and Disposal ................. 7
4.1 Unpacking and inspection on delivery . . . . . . 7
4.2 Transportation ................................ 7
4.3 Storage ....................................... 7
4.4 Disposal ....................................... 7
5 Installation and connection ....................... 8
5.1 Preparing for installation ..................... 8
5.1.1 Check operating conditions ................. 8
5.2 Planning pipelines ............................ 8
5.2.1 Designing pipelines .......................... 8
5.3 Installing fitting in pipe ....................... 8
5.3.1 Connection with solvent welding/butt-weld
spigot ends ................................... 8
5.3.2 Connection with flange ...................... 8
5.3.3 Connection with union nut and insert . . . . . . . 8
5.4 Connecting the drive ......................... 9
5.4.1 Installing limit switch ......................... 10
5.4.2 Pneumatic connection ....................... 10
5.4.3 Checking the function of the drive .......... 10
5.5 Performing the hydrostatic test .............. 10
6Operation ............................................ 11
6.1 Commissioning ............................... 11
6.2 Manual operation ............................. 11
6.3 Emergency operation ........................ 11
6.4 Set lift ......................................... 11
7 Maintenance ......................................... 12
7.1 Servicing ...................................... 12
7.2 Maintenance .................................. 12
7.2.1 Removing fitting .............................. 12
7.2.2 Fixing leaks in the port ....................... 13
7.3 Replacement parts and return .............. 13
8 Troubleshooting .................................... 14
9 Appendix ............................................. 15
9.1 Technical specifications ...................... 15
9.1.1 Mechanical specifications ................... 15
9.1.2 Control air connections ...................... 15
9.2 Tightening torques ........................... 16
9.2.1 Housing ....................................... 16
9.2.2 Flange connection ........................... 16
9.3 Accessories ................................... 16
9.4 Parts .......................................... 17
9.4.1 Part name DN 15–DN 100, manual .. . .. .. .. 17
9.4.2 Part name DN 15–DN 50, pneumatic .. . . . . . 18
9.4.3 Part name DN 65, pneumatic .. .. . . . .. .. . . . . 20
9.4.4 Part designation DN 80–100 ... . . . . . . . .. .. .. 21
List of figures
Fig. 1 Name plate (example) ....................... 6
Fig. 2 Structure (manual operation) ................ 6
Fig. 3 Structure (pneumatic operation) ............ 6
Fig. 4 Limit switch, type VCSP ..................... 9
Fig. 5 Limit switch, type Nj2–V3–N ................ 9
Fig. 6 Limit switch, type NBB2–V3–E2 ............ 9
Fig. 7 Compressed air, control function NC ....... 9
Fig. 8 Compressed air, control function NO
DA ............................................. 9
Fig. 9 Tightening torque housing screw ........... 16
Fig. 10 Part name DN 15–DN 50 .................... 17
Fig. 11 Part designation DN 65–DN 100 . . . . . . . . . . . . 17
Fig. 12 DN 15–DN 50, pneumatic, valve function NC
without lift limit ................................ 18
Fig. 13 DN 15–DN 50, pneumatic, valve function NC
with lift limit ................................... 18
Fig. 14 DN 15–DN 50, pneumatic, valve function
NO ............................................. 19
Fig. 15 DN 15–DN 50, pneumatic, valve function
DA ............................................. 19
Fig. 16 Part name DN 65, pneumatic ............... 20
Fig. 17 Part name DN 80 ............................. 21
Fig. 18 Part name DN 100 ........................... 21
Fig. 19 Part name DN 80, NO DA ................... 22
Fig. 20 Part name DN 100, NO DA .................. 22
2 MV 310 BA-2017.10.26 EN 300 719

Table of contents
List of tables
Tab. 1 Other application documents, purpose and
where found .................................. 4
Tab. 2 Warnings and symbols ....................... 4
Tab. 3 Compressed air connection ................. 10
Tab. 4 Diaphragm maintenance interval ........... 12
Tab. 5 Troubleshooting .............................. 14
Tab. 6 Mechanical specifications ................... 15
Tab. 7 Tightening torques housing .................. 16
Tab. 8 Tightening torque of flange connection .. . .. 16
Tab. 9 Accessories ................................... 16
Tab. 10 Part number and designation DN 15 –
50 .............................................. 17
Tab. 11 Part number and designation DN 65
–100 ........................................... 17
Tab. 12 Part number and designation DN 15–DN 50,
pneumatic, valve function NC .............. 18
Tab. 13 Part number and designation DN 15–DN 50,
pneumatic, valve function NO and DA . . .. .. 19
Tab. 14 Part number and designation DN 65,
pneumatic ..................................... 20
Tab. 15 Part number and designation DN 80-100,
NC ............................................. 21
Tab. 16 Part number and designation DN 80-100, NO
DA ............................................. 22
300 719 BA-2017.10.26 EN MV 310 3

About this document
1 About this document
This manual
• ispartofthefitting
• applies to all series referred to
• describes safe and proper operation during all operating
phases
1.1 Target groups
Operating company
• Responsibilities:
– Keep this manual available at the place of operation,
also for future use.
– Ensure that employees read and observe this manual
and other applicable documents, especially the safety
instructions and warnings.
– Observe any additional country-specific rules and reg-
ulations that relate to the system.
Qualified personnel, fitter
• Mechanics qualification:
–Qualified employees with additional training for fitting
therespectivepipework
• Electrical qualification:
–Qualified electrician
• Responsibility:
– Read, observe and follow this manual and the other
applicable documents, especially all safety instructions
and warnings.
1.2 Other applicable documents
Resistance lists
Resistance of materials used to chemicals
www.asv-stuebbe.de/pdf_resistance/300051.pdf
Data sheet
Technical data and conditions of operation
www.asv-stuebbe.de/pdf_datasheets/300848.pdf
CE declaration of conformity
Conformity with standards
www.asv-stuebbe.de/pdf_DOC/300168.pdf
Tab. 1 Other application documents, purpose
and where found
1.3 Warnings and symbols
Symbol Meaning
• Immediate acute risk
• Death, serious bodily harm
• Potentially acute risk
• Death, serious bodily harm
• Potentially hazardous situation
• Minor injury
• Potentially hazardous situation
• Material damage
Safety warning sign
Take note of all information
highlighted by the safety warning
sign and follow the instructions to
avoid injury or death.
Instruction
1., 2., ... Multiple-step instructions
Precondition
→Cross reference
Information, notes
Tab. 2 Warnings and symbols
4 MV 310 BA-2017.10.26 EN 300 719

Safety instructions
2 Safety instructions
The manufacturer accepts no liability for damages caused
by disregarding any of the documentation.
2.1 Intended use
•Onlyusethefitting to shut off pipes for appropriate media
(→Resistance list).
• Adhere to the operating limits (→Data sheet).
2.2 General safety instructions
Read and observe the following regulations before carrying
out any work.
2.2.1 Obligations of the operating company
Safety-conscious working
• Only operate the fittingifitisinperfecttechnical condition
and only use it as intended, remaining aware of safety and
risks, and adhering to the instructions in this manual.
• Ensure that the following safety aspects are observed and
monitored:
– Intended use
– Statutory or other safety and accident-prevention reg-
ulations
– Safety regulations governing the handling of haz-
ardous substances
– Applicable standards and guidelines in the country
where the pump is operated
• Make personal protective equipment available.
Qualified personnel
• Ensure all personnel tasked with work on the fitting have
read and understood this manual and all other applicable
documents, especially the safety, maintenance and repair
information, before they start any work.
• Organize responsibilities, areas of competence and the
supervision of personnel.
• The following work should be carried out by specialist tech-
nicians only:
– Installation, repair and maintenance work
– Work on the electrical system
• Make sure that personnel to be trained only work on the
fitting under the supervision of specialist technicians.
2.2.2 Obligations of personnel
• Observe the instructions on the fitting and keep them leg-
ible, e.g. name plate and identification marking for fluid
connections.
• Only carry out work on the fitting if the following require-
ments are met:
– System is empty
– System has been flushed
– System is depressurized
– System has cooled down
– System is secured against being switched back on
again
• Do not make any modifications to the device.
2.3 Specifichazards
2.3.1 Hazardous media
• When handling hazardous media (e.g. hot, flammable,
explosive, toxic, hazardous to health or the environment),
observe the safety regulations for the handling of haz-
ardous substances.
• Use personal protective equipment when carrying out any
work on the fitting.
• Collect leaking pumped liquid and residues in a safe man-
ner and dispose of in accordance with environmental reg-
ulations.
300 719 BA-2017.10.26 EN MV 310 5

Layout and Function
3 Layout and Function
3.1 Marking
3.1.1 Name plate
PP • PTFE • FPM
1
2
3
4
MV310
PN/DN 6 / 15
Id No 145039
1407-87345 5
Fig. 1 Name plate (example)
1Type
2IDnumber
3 Nominal pressure [bar] / Nominal diameter [mm]
4 Materials (valve body, diaphragm, other gaskets)
5 Date of manufacture - Series number
3.2 Assembly
Compressed air operated diaphragm valve for shutting off
pipelines or regulating systems.
• Optional flow direction
• Valve lift OPEN/CLOSE
• Optional installation position
• Valve functions
–Normallyclosed(NC)
– Normally open (NO)
– Double acting (DA)
2
3
4
1
Fig. 2 Structure (manual operation)
1 Indicator cap
2 Handwheel
3 Upper part of housing
4 Valve body
1
2
3
4
Fig. 3 Structure (pneumatic operation)
1 Indicator cap
2 Upper part of drive housing
3 Lower part of drive housing
4 Valve body
6 MV 310 BA-2017.10.26 EN 300 719

Transport, Storage and Disposal
4 Transport, Storage
and Disposal
4.1 Unpacking and inspection on delivery
1. Unpack the fitting when received and inspect it for trans-
portation damage.
2. Report any transportation damage to the manufacturer
immediately.
3. Ensure that the information on the name plate agrees with
the order/design data.
4. With immediate installation, dispose of packaging material
according to local regulations.
– For later installation, leave the fitting in the original
packaging.
4.2 Transportation
1. If possible, transport fitting(includingdrive)intheoriginal
packaging.
2. Lift fitting manually for transport. For weight specifications
(→Data sheet).
4.3 Storage
NOTE
Material damage due to inappropriate storage!
Store the fitting properly.
Make sure the storage room meets the following condi-
tions:
–Dry
– Frost-free
– Vibration-free
– Not in direct sunlight
– Storage temperature +10 °C to +60 °C
4.4 Disposal
Plastic parts can be contaminated by poisonous or radioac-
tive media to such an extent that cleaning will not be suffi-
cient.
WARNING
Risk of poisoning and environmental damage from
medium!
Use personal protective equipment when carrying out any
work on the fitting.
Before disposing of the fitting:
– Collect escaping medium and dispose separately
according to local regulations.
– Neutralize residues of medium in the fitting.
Remove plastic parts and dispose of them in accordance
with local regulations.
Dispose of the fitting in accordance with local regulations.
300 719 BA-2017.10.26 EN MV 310 7

Installation and connection
5 Installation and connection
5.1 Preparing for installation
5.1.1 Check operating conditions
1. Ensure the design of the fitting is consistent with the pur-
pose intended:
– Materials used (→Type plate).
–Medium(→Order and design data).
2. Ensure the required operating conditions are met:
– Resistance of body and seal material to the medium
(→Resistance lists).
– Media temperature (→Data sheet).
– Operating pressure (→Data sheet).
3. Consult with the manufacturer regarding any other use of
the device.
5.2 Planning pipelines
5.2.1 Designing pipelines
WARNING
Risk of poisoning and environmental damage from
medium!
Leaks due to impermissible pipework forces.
Ensure that the fitting is not subject to any pulling or thrust-
ing forces or bending moments.
1. Plan pipes safely:
– No pulling or thrusting forces
– No bending moments
– Adjust for changes in length due to temperature
changes (compensators, expansion shanks)
– Optional flow direction
– Optional installation position and direction
2. Dimensions (→Data sheet).
5.3 Installing fittinginpipe
WARNING
Risk of poisoning and environmental damage from
medium!
Leak due to faulty installation.
Installation work on the pipes should only be performed
by technicians who have been specially trained for the
pipework in question.
NOTE
Material damage due to contamination of the fitting!
Make sure no contamination reaches the fitting.
Flush the pipe with a neutral medium.
The fittingisinstalledaccordingtotheconnectiontypeof
the pipes.
5.3.1 Connection with solvent welding/butt-weld
spigot ends
Do not connect the ASV valve body in the version “fixed
connector” by means of butt-welding.
This applies to the heating element as well as infrared butt-
welding procedures.
1. Prepare pipe ends according to connection type.
2. Adhesively apply or weld fitting with solvent welding/butt-
weld socket ends (→manufacturer specifications).
5.3.2 Connection with flange
1. Prepare pipe ends according to connection type.
2. Radially push the fitting and flat seal between the flange
ends.
3. Bolt fitting and flange with flange screws, nuts and wash-
ers.
While doing so, observe tightening torques: (→Ta bl e
8 Tightening torque of flange connection, Page 16).
5.3.3 Connection with union nut and insert
1. Prepare pipe ends according to connection type.
2. Unscrew union nuts and slide over free pipe ends.
– Check mounting direction.
3. Connect inserts with pipe ends.
4. Position fitting between the pipe ends.
– Any position of the compressed air drive
5. Hand-tighten the union nut.
8 MV 310 BA-2017.10.26 EN 300 719

Installation and connection
5.4 Connecting the drive
Fig. 4 Limit switch, type VCSP
Aclosed
Bopen
Fig. 5 Limit switch, type Nj2–V3–N
Aclosed
Bopen
LL
Fig. 6 Limit switch, type NBB2–V3–E2
LLoad
Aclosed
Bopen
A
Fig. 7 Compressed air, control function NC
A Open valve
A
B
Fig. 8 Compressed air, control function NO DA
A Close valve
B Open valve
300 719 BA-2017.10.26 EN MV 310 9

Installation and connection
5.4.1 Installing limit switch
Only necessary for fittings with limit switches.
DANGER
Risk of electrocution!
All electrical work must be carried out by qualified electri-
cians only.
1. Mount limit switch unit onto fitting.
2. Connect limit switch:
–(→Figure Limit switch, type VCSP, Page 9).
–(→Figure Limit switch, type Nj2–V3–N, Page 9).
–(→Figure Limit switch, type NBB2–V3–E2, Page 9).
5.4.2 Pneumatic connection
Solenoid pilot valves are available for control of the com-
pressed air drive:
– 3/2-way valve for single-acting drives
– 5/2-way valve for double-acting drives
CAUTION
Risk of injury from compressed air!
All work on the compressed air system must be carried out
by qualified technicians.
Connect compressed air lines to the compressed air drive:
–(→Figure Compressed air, control function NC,
Page 9).
–(→Figure Compressed air, control function NO DA,
Page 9).
Control
pressure on
Function ab
Normally closed (NC) –open
Normally open (NO) close –
Double acting (DA) close open
Tab. 3 Compressed air connection
5.4.3 Checking the function of the drive
Open and close fitting using the pneumatic connection, the
indicator pin signals the corresponding position
– lowered: Fitting is closed
– protruding: Fitting is open
5.5 Performing the hydrostatic test
Pressure test using neutral medium, e.g. water.
1. Pressurize the fitting. ensuring:
– Test pressure < permissible system pressure
– Test pressure < 1.5 PN
– Test pressure < PN + 5 bar
2. Check the fitting for leaks.
10 MV 310 BA-2017.10.26 EN 300 719

Operation
6 Operation
WARNING
Risk of injury and poisoning due to medium spraying out!
Use personal protective equipment when carrying out any
work on the fitting.
6.1 Commissioning
Fitting correctly installed and connected
1. Open and close fitting, the indicator pin signals the corre-
sponding position
– lowered: Fitting is closed
– protruding: Fitting is open
2. After the initial stresses due to pressure and operating tem-
perature, check if the fitting is sealed.
6.2 Manual operation
Fitting correctly installed and connected
Operate manually operated fittings as follows (depending
on fitting size, turn 4–8 times):
– Turn handwheel clockwise: Close valve.
– Turn handwheel anti-clockwise: Open valve.
6.3 Emergency operation
Applies to pneumatically activated valves NC,
DN 15–DN 50.
Turn adjustment screw (3.8) clockwise to open the valve if
the pressure falls.
6.4 Set lift
Applies to pneumatically operated valves DN 15–DN 50,
special design with metal screw in the top part of the drive.
Turn screw (3.30) as follows to set the lift:
– Turn clockwise: Limit lift.
– Turn anti-clockwise: Increase lift.
300 719 BA-2017.10.26 EN MV 310 11

Maintenance
7 Maintenance
WARNING
Risk of injury and poisoning due to hazardous media liq-
uids!
Use personal protective equipment when carrying out any
work on the fitting.
7.1 Servicing
1. Visual and function check (every three months):
– Normal operating conditions unchanged
–Noleaks
– No unusual operating noises or vibrations
2. Ensure that fitting functions properly (opening, closing).
3. Clean the fitting with a moist cloth if necessary.
4. Retighten housing screws (→Table 8 Tightening torque of
flange connection, Page 16).
5. Check diaphragm for wear and replace if necessary:
Diaphragm material
Max. number of
operations1)
EPDM 150,000
FPM 100,000
PTFE (EPDM) 100,000
Tab. 4 Diaphragm maintenance interval
1) Applies to water at 20 °C. For different conditions
(chemicals, media that contains solids/abrasives),
shorten the maintenance intervals.
7.2 Maintenance
DANGER
Risk of electrocution!
All electrical work must be carried out by qualified electri-
cians only.
WARNING
Risk of injury and poisoning due to hazardous or hot
media!
Use personal protective equipment when carrying out any
work on the fitting.
Safely collect the media and dispose of it in accordance
with environmental regulations.
WARNING
Risk of injury during disassembly!
Wear protective gloves, components can be very sharp-
edged due to wear or damage.
Remove components with springs (e.g. pneumatic drive)
carefully, since spring tension can cause components to
be ejected.
7.2.1 Removing fitting
1. Ensure that:
– System is empty
– System has been flushed
– System is depressurized
– System has cooled down
– System is secured against being switched back on
again
2. Remove fitting from the pipe.
3. Decontaminate fitting if required.
–Deadspaceinthefitting may still contain medium.
12 MV 310 BA-2017.10.26 EN 300 719

Maintenance
7.2.2 Fixing leaks in the port
Depending on the fitting type, note the following drawings:
• DN 15–DN 50: (→9.4.2 Part name DN 15–DN 50, pneu-
matic, Page 18).
•DN65:(→9.4.3 Part name DN 65, pneumatic, Page 20).
• DN 80, DN 100: (→9.4.4 Part designation DN 80–100,
Page 21).
1. Removing fitting (→7.2.1 Removing fitting, Page 12).
Before removing the connection elements, note:
– For NC drives, apply compressed air pressure to
connection B to bring the drive into the open posi-
tion
– For NO and DA drives, this is not necessary.
2. Depending on the fitting type, remove the following con-
nection elements:
– DN 15–DN 50: Hexagon screw (5)
– DN 65: Bolt (13) and washer (12)
– DN 80, DN100: Screw (35), stud bolt (36), nut (37) and
washer (38)
3. Depending on the fitting type, remove lift drive as follows:
– DN 15–DN 50: Remove lower part (3.1.) and upper
part (3.2) of drive housing.
– DN 65: Remove drive (1).
– DN 80, DN100: Remove upper (2) and lower part (18)
of the drive.
4. For NC drives on connection B, release compressed air.
5. Depending on the fitting type, screw out the following
diaphragm and dispose of it in an environmentally-friendly
manner:
– DN 15–DN 50: Diaphragm (2).
– DN 65: Diaphragm seal (7)
– DN 80, DN100: Diaphragm (24)
6. Depending on the fitting type, ensure that the following
pressure piece is resting freely in the ducts:
– DN 15–DN 50: Pressure piece (3.3)
– DN 65: Compressor (6)
– DN 80, DN100: Pressure piece (23)
7. Depending on the fitting type, check sealing areas on the
following valve body for damage:
– DN 15–DN 50: Valve body (1)
– DN 65: Valve body (8)
– DN 80, DN100: Valve body (25)
8. Lightly lubricate new diaphragm with special grease on top
of curvature and on thread (recommended special grease:
Syntheso ProAA2).
9. Screw diaphragm into spindle clockwise until resistance is
felt.
10. Depending on the fitting type unscrew diaphragm until the
diaphragm hole pattern matches the following valve body
(max. 180°):
– DN 15–DN 50: Valve body (1)
– DN 65: Valve body (8)
– DN 80, DN100: Valve body (25)
11. Depending on the fitting type, screw in the following con-
nection elements and tighten via the cross. Ensure uniform
contact pressure:
– DN 15–DN 50: Hexagon screw (5) .
– DN 65: Bolt (13) and washer (12)
– DN 80, DN100: Screw (35), stud bolt (36), nut (37) and
washer (38)
12. Depending on the fitting type, tighten the following connec-
tion elements with tightening torque (→Table 8 Tightening
torque of flange connection, Page 16).:
– DN 15–DN 50: Hexagon screw (5)
–DN65:Bolt(13)
– DN 80, DN100: Screw (35) and nut (37)
7.3 Replacement parts and return
1. Have the following information ready to hand when order-
ing spare parts (→Type plate).
– Fitting type
– ID number
– Nominal pressure and diameter
– Body and seal material
2. Please complete and enclose the document of compliance
for returns (→www.asv-stuebbe.com/service/downloads).
3. Only use spare parts from ASV Stübbe.
300 719 BA-2017.10.26 EN MV 310 13

Troubleshooting
8 Troubleshooting
WARNING
Risk of injury and poisoning due to hazardous or hot
media!
Use personal protective equipment when carrying out any
work on the fitting.
Safely collect the media and dispose of it in accordance
with environmental regulations.
Consult with the manufacturer regarding faults which are not
identified in the following table, or which cannot be traced to
the indicated causes.
Error Possible cause Corrective action
Control connections mixed up Connect control connections
correctly.
Compressed air connection mixed up at
solenoid pilot valve
Check compressed air connection
and correct if necessary
(→supplementary instructions
for drives).
Control function is not right
Electrical connection faulty Check electric connect and correct
if necessary (→supplementary
instructions for limit switch).
Medium escapes between housing and
diaphragm
Housing screws too loose Tighten housing screws
(→Table 8 Tightening torque of
flange connection, Page 16).
Medium escapes at the drive Diaphragm leaky (→7.2.2 Fixing leaks in the port,
Page 13).
Control pressure too low Check compressed air supply.
Ensure sufficient air pressure
(→9.1.2 Control air connections,
Page 15).
Diaphragm leaky (→7.2.2 Fixing leaks in the port,
Page 13).
Fitting does not close completely
Drive defective Replace drive.
Tab. 5 Troubleshooting
14 MV 310 BA-2017.10.26 EN 300 719

Appendix
9 Appendix
9.1 Technical specifications
Technical data (→Data sheet).
9.1.1 Mechanical specifications
Size Value
Process conditions (medium)
Pressure and temperature →Data sheet
Materials in contact with medium
Diaphragm EPDM, FPM, PTFE (EPDM
diaphragm, PTFE-coated on
medium-side)
sealing FPM, EPDM
Housing PVC-U, PP, PVDF
Materials not in contact with medium
Upper part PP, glass fiber reinforced
Tab. 6 Mechanical specifications
9.1.2 Control air connections
• Maximum control pressure
– 5 bar for DN65 NO and for DN65 DA
– 6 bar for other fittings
• Compressed air classes according to ISO 8573-1
– 2or3atT<0°C
– 3or4atT>0°C
• Control pressure diagram (→Data sheet).
300 719 BA-2017.10.26 EN MV 310 15

Appendix
9.2 Tightening torques
9.2.1 Housing
Fitting size Tightening torque housing screw [Nm]
d [mm] DN [mm] Manual operation
EPDM diaphragm
Manual operation
PTFE diaphragm
Compressed air
operation EPDM
diaphragm
Compressed air
operation PTFE
diaphragm
20 15 6 8 6 8
25 20 6 8 6 8
32 25 10 12 10 12
40 32 10 12 10 12
50 40 18 20 18 20
63 50 18 20 18 20
75 65 18 20 14 14
90 80 18 20 40 50
110 100 20 22 30 40
Tab. 7 Tightening torques housing
Fig. 9 Tightening torque housing screw
9.2.2 Flange connection
Fitting size Tightening torque flange connection [Nm]
d [mm] DN [mm] Flat sealing ring
max. 10 bar, max. 40 °C
Profile seal
max. 16 bar
O-ring
max. 16 bar
16 10 5 5 5
20 15 10 10 10
25 20 12 12 12
32 25 15 12 12
40 32 20 15 15
50 40 25 15 15
63 50 30 20 20
75 65 35 20 20
90 80 35 20 20
110 100 35 20 20
Tab. 8 Tightening torque of flange connection
9.3 Accessories
Description
limit switch unit
Tab. 9 Accessories
16 MV 310 BA-2017.10.26 EN 300 719

Appendix
9.4 Parts
9.4.1 Part name DN 15–DN 100, manual
DN 15–DN 50
7
1
3
2
4
5
6
15
12
9
17 18 19
11
12
8
13
Fig. 10 Part name DN 15–DN 50
Pos. Quantity Designation
11Valvebody
21Upper part of housing
31Membrane
41Shaft
51 spindle nut
6 1 Handwheel
71 Indicator cap
81O-ring
91O-ring
11 4 hexagon bolt
12 8 Washer
13 4 Hexagon nut
15 1 bearing ring
17 1 Union nut
18 1 Union end
19 1 O-ring
Tab. 10 Part number and designation DN 15 – 50
DN 65–DN 100
9
15
8
14
3
17
18
7
11
12
10
4
13
2
20
1
16
17
5
Fig. 11 Part designation DN 65–DN 100
Pos. Quantity Designation
11Valvebody
21Membrane
31Upper part of housing
4 1 pressure piece
51Shaft
71 spindle nut
8 1 Handwheel
9 1 Indicator cap
10 1 indicator pin
11 1 Axial bearing
12 1 axial bearing disc
13 2 Clamping sleeve
14 1 O-ring
15 1 O-ring
16 4 hexagon bolt
17 8/12 Washer
18 4/8 Hexagon nut
20 1 Name plate
Tab. 11 Part number and designation DN 65 –100
300 719 BA-2017.10.26 EN MV 310 17

Appendix
9.4.2 Part name DN 15–DN 50, pneumatic
Valve function NC without lift limit
3.7
3.18
3.8
3.2
3.9
3.10
3.15
3.14
3.5
3.6
3.5
3.12
3.1
3.11
3.13
3.4
3.3
2
1
4
5
9
8
7
Fig. 12 DN 15–DN 50, pneumatic, valve function
NC without lift limit
Valve function NC with lift limit
3.8
3.2
3.9
3.10
3.15
3.14
3.5
3.6
3.5
3.12
3.30
3.31
3.32
3.33
3.34
3.1
3.11
3.13
3.4
3.3
2
1
4
5
9
8
7
Fig. 13 DN 15–DN 50, pneumatic, valve function
NC with lift limit
Pos. Quantity Designation
11Valvebody
2 1 Membrane
3.1 1 Lower part of drive housing
3.2 1 Upper part of drive housing
3.3 1 pressure piece
3.4 1 Drive bar
3.5 1 Diaphragm disk
3.6 1 Membrane
3.7* 1 Indicator cap
3.8 1 Adjustment screw
3.9 1 Pressure spring
3.10 2 Pressure spring
3.11 8/12 Cylinder screw
3.12 1 Circlip
3.13 1 Disc
3.14 1 Circlip
3.15 1 Hexagon nut
3.18* 1O-ring
3.30** 1 hexagon bolt
3.31** 1 Hexagon nut
3.32** 1Lift limitation
3.33** 1Screw
3.34** 1 Hexagon nut
44Disc
54 hexagon bolt
72 Union nut
82Unionend
92O-ring
Tab. 12 Part number and designation DN 15–DN 50,
pneumatic, valve function NC
*) Valid for fitting without lift limit
**) Valid for fitting with lift limit
18 MV 310 BA-2017.10.26 EN 300 719

Appendix
Valve function NO
3.7
3.18
3.19
3.8
3.2
3.5
3.5
3.6
3.21
3.14
3.15
3.9
3.21
3.13
3.12
3.17
3.1
3.4
3.3
3.22
2
1
4
5
78 9
3.20
Fig. 14 DN 15–DN 50, pneumatic, valve function NO
Valve function DA
3.7
3.18
3.20
3.2
3.19
3.8
3.15
3.14
3.5
3.12
3.6
3.5
3.1
3.11
3.13
3.4
3.3
2
1
4
5
9
8
7
Fig. 15 DN 15–DN 50, pneumatic, valve function DA
Pos. Quantity Designation
11Valvebody
21Membrane
3.1 1 Lower part of drive housing
3.2 1 Upper part of drive housing
3.3 1 pressure piece
3.4 1 Drive bar
3.5 1 Diaphragm disk
3.6 1 Membrane
3.7 1 Indicator cap
3.8 1 Adjustment screw
3.9* 1 Pressure spring
3.11 8/10 Cylinder screw
3.12 8/10 Cylinder screw
3.13 10 Disc
3.14 1 Circlip
3.15 1 O-ring
3.17* 1O-ring
3.18 1 O-ring
3.19 1 O-ring
3.20 1 indicator pin
3.21* 1 Hexagon nut
3.22* 1Clamping sleeve
44Disc
54 hexagon bolt
72 Union nut
82Unionend
92O-ring
Tab. 13 Part number and designation DN 15–DN 50,
pneumatic, valve function NO and DA
*) Valid for fitting NO
300 719 BA-2017.10.26 EN MV 310 19

Appendix
9.4.3 Part name DN 65, pneumatic
Fig. 16 Part name DN 65, pneumatic
Pos. Quantity Designation
11Drive
61Compressor
71Diaphragm seal (EPDM, FPM,
PTFE)
81Valve body (PVC-U, PP, PVDF)
12 4 Washer
13 4 Bolt
14 4 Protective plug (PE)
A–78.0 mm
B–82.0 mm
Tab. 14 Part number and designation DN 65, pneumatic
20 MV 310 BA-2017.10.26 EN 300 719