GEM 615 User manual

GEMÜ 615
Pneumatically operated diaphragm valve
Operating instructions
EN
further information
webcode: GW-615

All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
28.04.2023
www.gemu-group.com2 / 27GEMÜ 615

Contents
1 General information ............................................. 4
1.1 Information .................................................... 4
1.2 Symbols used ................................................ 4
1.3 Definition of terms ........................................ 4
1.4 Warning notes ............................................... 4
2 Safety information ............................................... 5
3 Product description ............................................. 5
3.1 Construction .................................................. 5
3.2 Description ..................................................... 5
3.3 Function ......................................................... 6
3.4 Product label ................................................. 6
4 GEMÜ CONEXO .................................................... 6
5 Order data ........................................................... 7
6 Technical data ..................................................... 9
6.1 Medium .......................................................... 9
6.2 Temperature .................................................. 9
6.3 Pressure ......................................................... 10
6.4 Product conformity ....................................... 11
6.5 Mechanical data ............................................ 11
7 Dimensions .......................................................... 12
7.1 Actuator dimensions ..................................... 12
7.2 Body dimensions ........................................... 13
8 Manufacturer's information .................................. 18
8.1 Packaging ...................................................... 18
8.2 Transport ....................................................... 18
8.3 Storage ........................................................... 18
8.4 Delivery .......................................................... 18
9 Installation in piping ............................................ 18
9.1 Preparing for installation .............................. 18
9.2 Installation position ....................................... 18
9.3 Installation with butt weld spigots ............... 19
9.4 Installation with threaded spigots ................ 19
9.5 Installation with threaded sockets ............... 19
9.6 Installation with clamp connections ............ 19
9.7 After the installation ...................................... 19
9.8 Operation ....................................................... 20
10 Pneumatic connections ....................................... 20
10.1 Control function ............................................. 20
10.2 Connecting the control medium ................... 21
11 Commissioning .................................................... 21
12 Operation ............................................................. 21
13 Troubleshooting .................................................. 22
14 Inspection and maintenance ................................ 23
14.1 Spare parts .................................................... 23
14.2 Fitting/removing spare parts ........................ 23
15 Removal from piping ............................................ 25
16 Disposal .............................................................. 25
17 Returns ................................................................ 25
18 EU Declaration of Incorporation according to the
EC Machinery Directive 2006/42/EC, Annex II B ... 26
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www.gemu-group.com4 / 27GEMÜ 615
1 General information
1 General information
1.1 Information
- The descriptions and instructions apply to the standard ver-
sions. For special versions not described in this document
the basic information contained herein applies in combina-
tion with any additional special documentation.
- Correct installation, operation, maintenance and repair work
ensure faultless operation of the product.
- Should there be any doubts or misunderstandings, the Ger-
man version is the authoritative document.
- Contact us at the address on the last page for staff training
information.
1.2 Symbols used
The following symbols are used in this document:
Symbol Meaning
Tasks to be performed
Response(s) to tasks
– Lists
1.3 Definition of terms
Working medium
The medium that flows through the GEMÜ product.
Control function
The possible actuation functions of the GEMÜ product.
Control medium
The medium whose increasing or decreasing pressure causes
the GEMÜ product to be actuated and operated.
1.4 Warning notes
Wherever possible, warning notes are organised according to
the following scheme:
SIGNAL WORD
Type and source of the danger
Possible
symbol for the
specific
danger
Possible consequences of non-
observance.
Measures for avoiding danger.
Warning notes are always marked with a signal word and
sometimes also with a symbol for the specific danger.
The following signal words and danger levels are used:
DANGER
Imminent danger!
▶Non-observance can cause death or
severe injury.
WARNING
Potentially dangerous situation!
▶Non-observance can cause death or
severe injury.
CAUTION
Potentially dangerous situation!
▶Non-observance can cause moderate
to light injury.
NOTICE
Potentially dangerous situation!
▶Non-observance can cause damage to
property.
The following symbols for the specific dangers can be used
within a warning note:
Symbol Meaning
Corrosive chemicals!
Hot plant components!

www.gemu-group.com 5 / 27 GEMÜ 615
2 Safety information
The safety information in this document refers only to an indi-
vidual product. Potentially dangerous conditions can arise in
combination with other plant components, which need to be
considered on the basis of a risk analysis. The operator is re-
sponsible for the production of the risk analysis and for com-
pliance with the resulting precautionary measures and re-
gional safety regulations.
The document contains fundamental safety information that
must be observed during commissioning, operation and main-
tenance. Non-compliance with these instructions may cause:
- Personal hazard due to electrical, mechanical and chemical
effects.
- Hazard to nearby equipment.
- Failure of important functions.
- Hazard to the environment due to the leakage of dangerous
substances.
The safety information does not take into account:
- Unexpected incidents and events, which may occur during
installation, operation and maintenance.
- Local safety regulations which must be adhered to by the
operator and by any additional installation personnel.
Prior to commissioning:
1. Transport and store the product correctly.
2. Do not paint the bolts and plastic parts of the product.
3. Carry out installation and commissioning using trained
personnel.
4. Provide adequate training for installation and operating
personnel.
5. Ensure that the contents of the document have been fully
understood by the responsible personnel.
6. Define the areas of responsibility.
7. Observe the safety data sheets.
8. Observe the safety regulations for the media used.
During operation:
9. Keep this document available at the place of use.
10. Observe the safety information.
11. Operate the product in accordance with this document.
12. Operate the product in accordance with the specifications.
13. Maintain the product correctly.
14. Do not carry out any maintenance work and repairs not de-
scribed in this document without consulting the manufac-
turer first.
In cases of uncertainty:
15. Consult the nearest GEMÜ sales office.
3 Product description
3.1 Construction
1
3
4
5
6
7
2
8
Item Name Materials
1 Position indicator
2 Control air connectors
3 Diaphragm EPDM
FKM
PTFE/EPDM (one-piece)
4 Valve body 1.4408, investment casting
1.4435, investment casting
1.4435 (F316L), forged body
1.4435 (BN2), forged body, Δ
Fe < 0.5 %
1.4539, forged body
CW614N, CW617N (brass)
5 CONEXO diaphragm
RFID chip
(see Conexo informa-
tion)
6 CONEXO body RFID
chip
(see Conexo informa-
tion)
7 CONEXO actuator RFID
chip
(see Conexo informa-
tion)
8 Piston actuator PP, glass fibre reinforced
3.2 Description
The GEMÜ 615 2/2-way diaphragm valve has a low-mainten-
ance plastic piston actuator and is pneumatically operated.
An integrated optical position indicator is standard. Normally
Closed (NC), Normally Open (NO) and Double Acting (DA) con-
trol functions are available.
3 Product description

www.gemu-group.com6 / 27GEMÜ 615
4 GEMÜ CONEXO
3.3 Function
The product is designed for use in piping. It can be closed or
opened by a control medium, which is how it controls the
flow.
3.4 Product label
Item number Traceability number Consecutive number
- XXXXXXXX|YYYY
Design in accordance with order data
Device-specific data
Year of manufacture
Device version
The month of manufacture is encoded in the traceability num-
ber and can be obtained from GEMÜ. The product was manu-
factured in Germany.
4 GEMÜ CONEXO
The interaction of valve components that are equipped with
RFID chips and an associated IT infrastructure actively in-
crease process reliability.
Thanks to serialization, every valve and every relevant valve
component such as the body, actuator or diaphragm, and
even automation components, can be clearly traced and read
using the CONEXO pen RFID reader. The CONEXO app, which
can be installed on mobile devices, not only facilitates and im-
proves the "installation qualification" process, but also makes
the maintenance process much more transparent and easier
to document. The app actively guides the maintenance techni-
cian through the maintenance schedule and directly provides
him with all the information assigned to the valve, such as
test reports, testing documentation and maintenance histor-
ies. The CONEXO portal acts as a central element, helping to
collect, manage and process all data.
For further information on GEMÜ CONEXO please visit:
www.gemu-group.com/conexo

5 Order data
The order data provide an overview of standard configurations.
Please check the availability before ordering. Other configurations available on request.
Order codes
1 Type Code
Diaphragm valve, pneumatically operated,
plastic piston actuator,
optical position indicator
615
2 DN Code
DN 10 10
DN 12 12
DN 15 15
DN 20 20
3 Body configuration Code
2/2-way body D
4 Connection type Code
Spigot
Spigot DIN 0
Spigot EN 10357 series B,
formerly DIN 11850 series 1
16
Spigot EN 10357 series A/DIN 11866 series A
formerly DIN 11850 series 2
17
Spigot DIN 11850 series 3 18
Spigot JIS-G 3459 schedule 10s 36
Spigot BS 4825, part 1 55
Spigot ASME BPE/DIN 11866 series C 59
Spigot ISO 1127/EN 10357 series C/DIN 11866 series B 60
Spigot ANSI/ASME B36.19M schedule 10s 63
Spigot ANSI/ASME B36.19M schedule 5s 64
Spigot ANSI/ASME B36.19M schedule 40s 65
Threaded connection
Threaded socket DIN ISO 228 1
Threaded spigot DIN 11851 6
Cone spigot and union nut DIN 11851 6K
Clamp
Clamp ASME BPE,
face-to-face dimension FTF ASME BPE,
length only for body configuration D
80
Clamp DIN 32676 series B,
face-to-face dimension FTF EN 558 series 7,
length only for body configuration D
82
Clamp ASME BPE,
for pipe ASME BPE,
face-to-face dimension FTF EN 558 series 7,
length only for body configuration D
88
Clamp DIN 32676 series A,
face-to-face dimension FTF acc. to EN 558 series 7,
length only for body configuration D
8A
Clamp DIN 32676 series C,
face-to-face dimension FTF ASME BPE,
length only for body configuration D
8P
4 Connection type Code
Clamp DIN 32676 series C,
face-to-face dimension FTF EN 558 series 7,
length only for body configuration D
8T
5 Valve body material Code
Investment casting material
1.4408, investment casting 37
1.4435, investment casting C3
Forged material
1.4435 (F316L), forged body 40
1.4435 (BN2), forged body, Δ Fe < 0.5% 42
1.4539, forged body F4
Brass
CW614N, CW617N (brass) 12
6 Diaphragm material Code
Elastomer
FKM 4
EPDM 13
EPDM 17
EPDM 19
EPDM 28
EPDM 29
EPDM 36
PTFE
PTFE/EPDM one-piece 54
7 Control function Code
Normally closed (NC) 1
Normally open (NO) 2
Double acting (DA) 3
8 Actuator version Code
Actuator size 1/N 1/N
9 Surface Code
Ra ≤ 6.3 μm (250 μin.) for media wetted surfaces,
mechanically polished internal
1500
Ra ≤ 0.8 µm (30 µin.) for media wetted surfaces,
in accordance with DIN 11866 H3,
mechanically polished internal
1502
Ra ≤ 0.8 µm (30 µin.) for media wetted surfaces,
in accordance with DIN 11866 HE3,
electropolished internal/external
1503
Ra ≤ 0.6 μm (25 μin.) for media wetted surfaces,
mechanically polished internal
1507
Ra ≤ 0.6 µm (25 µin.) for media wetted surfaces,
electropolished internal/external
1508
5 Order data
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9 Surface Code
Ra ≤ 0.25 μm (10 µin.) for media wetted surfaces *),
in accordance with DIN 11866 HE5,
electropolished internal/external,
*) for inner pipe diameters < 6 mm, in the spigot Ra ≤
0.38 μm
1516
Ra ≤ 0.25 μm (10 µin.) for media wetted surfaces *),
in accordance with DIN 11866 H5,
mechanically polished internal,
*) for inner pipe diameters < 6 mm, in the spigot Ra ≤
0.38 μm
1527
Ra ≤ 0.4 µm (15 µin.) for media wetted surfaces,
in accordance with DIN 11866 H4,
mechanically polished internal
1536
Ra ≤ 0.4 µm (15 µin.) for media wetted surfaces,
in accordance with DIN 11866 HE4,
electropolished internal/external
1537
Ra max. 0.51 µm (20 µin.) for media wetted surfaces,
in accordance with ASME BPE SF1,
mechanically polished internal
SF1
Ra max. 0.64 µm (25 µin.) for media wetted surfaces,
in accordance with ASME BPE SF2,
mechanically polished internal
SF2
9 Surface Code
Ra max. 0.76 µm (30 µin.) for media wetted surfaces,
in accordance with ASME BPE SF3,
mechanically polished internal
SF3
Ra max. 0.38 µm (15 µin.) for media wetted surfaces,
in accordance with ASME BPE SF4,
electropolished internal/external
SF4
Ra max. 0.51 µm (20 µin.) for media wetted surfaces,
in accordance with ASME BPE SF5,
electropolished internal/external
SF5
Ra max. 0.64 µm (25 µin.) for media wetted surfaces,
in accordance with ASME BPE SF6,
electropolished internal/external
SF6
10 Special version Code
Without
BELGAQUA certification B
Special version for oxygen,
maximum medium temperature: 60°C
S
11 CONEXO Code
Without
Integrated RFID chip for electronic identification and
traceability
C
Order example
Ordering option Code Description
1 Type 615 Diaphragm valve, pneumatically operated,
plastic piston actuator,
optical position indicator
2 DN 15 DN 15
3 Body configuration D 2/2-way body
4 Connection type 60 Spigot ISO 1127/EN 10357 series C/DIN 11866 series B
5 Valve body material C3 1.4435, investment casting
6 Diaphragm material 17 EPDM
7 Control function 1 Normally closed (NC)
8 Actuator version 1/N Actuator size 1/N
9 Surface 1500 Ra ≤ 6.3 μm (250 μin.) for media wetted surfaces,
mechanically polished internal
10 Special version S Special version for oxygen,
maximum medium temperature: 60°C
11 CONEXO Without
5 Order data
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6 Technical data
6.1 Medium
Working medium: Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and
chemical properties of the body and diaphragm material.
For special oxygen version (code S): only gaseous oxygen
Control medium: Inert gases
6.2 Temperature
Media temperature: Diaphragm material Standard Special version
for oxygen
FKM (code 4) -10 — 80 °C -
EPDM (code 13) -10 — 80 °C 0 — 60 °C
EPDM (code 17) -10 — 80 °C -
EPDM (code 19) -10 — 80 °C 0 — 60 °C
EPDM (code 28) -10 — 80 °C -
EPDM (code 29) -10 — 80 °C -
EPDM (code 36) -10 — 80 °C -
PTFE/EPDM (code 54) -10 — 80 °C 0 — 60 °C
Ambient temperature: 0 — 60 °C
Control medium temper-
ature:
0 — 40 °C
Storage temperature: 0 — 40 °C
GEMÜ 615www.gemu-group.com 9 / 27
6 Technical data

6.3 Pressure
Operating pressure: MG DN Diaphragm material
Elastomer PTFE
10 10 - 20 0 - 6 0 - 6
MG = diaphragm size
All pressures are gauge pressures. Operating pressure values were determined with static operating pressure
applied on one side of a closed valve. Sealing at the valve seat and atmospheric sealing is ensured for the given
values.
Information on operating pressures applied on both sides and for high purity media on request.
Pressure rating: PN 16
Leakage rate: Leakage rate A to P11/P12 EN 12266-1
Control pressure: MG DN Control function 1 Control function 2 Control function 3
10 10 - 20 5 - 7 max. 5.5 max. 5.0
MG = diaphragm size
All pressures are gauge pressures.
Control pressure/operating pressure diagram – Control function 2 and 3
Operating pressure [bar]
Control pressure [bar]
Control function 3
Control function 2
The control pressure depending on the prevailing operating pressure, as shown in the diagram, is intended as a
guide for operating the system with low wear on the diaphragm.
Filling volume: 0.02 dm³
Kv values: MG DN Connection type code
0 16 17 18 59 60 1
10 10 - 2.4 2.4 2.4 2.2 3.3 -
12 ------3.2
15 3.3 3.8 3.8 3.8 2.2 4.0 3.4
20 - - - - 3.8 - -
MG = diaphragm size
Kv values in m³/h
Kv values determined in accordance with DIN EN 60534 standard, inlet pressure 5 bar, Δp 1 bar, stainless steel
valve body and soft elastomer diaphragm. The Kv values for other product configurations (e.g. other diaphragm
or body materials) may differ. In general, all diaphragms are subject to the influences of pressure, temperature,
the process and their tightening torques. Therefore the Kv values may exceed the tolerance limits of the stand-
ard.
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6 Technical data

6.4 Product conformity
Machinery Directive: 2006/42/EC
Pressure Equipment Dir-
ective:
2014/68/EU
Food: Regulation (EC) No. 1935/2006
Regulation (EC) No. 10/2011*
FDA*
USP* Class VI
Drinking water: Belgaqua*
* depending on version and / or operating parameters
6.5 Mechanical data
Weight: Actuator
0.18 kg
Body
MG DN Spigot Threaded
socket
Threaded
spigot
Clamp
Connection type code
0, 16, 17, 18,
36, 55, 59, 60,
63, 64, 65
1 6, 6K 80, 82, 88, 8A,
8P, 8T
10 10 0.30 - 0.33 0.30
12 - 0.17 - -
15 0.30 0.26 0.35 0.43
20 - - - 0.43
Weights in kg
MG = diaphragm size
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6 Technical data

7 Dimensions
7.1 Actuator dimensions
B2
B1
ØB
A2
A1
A
CT
GG
M
A4
MG A A1 A2 ø B B1 B2 A4 G M
10 80.0 21.0 30.0 57.0 35.0 68.0 4.0 G 1/4 M12x1
Dimensions in mm
MG = diaphragm size
* CT = A + H1 (see body dimensions)
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7 Dimensions

7.2 Body dimensions
7.2.1 Spigot DIN/EN/ISO (code 0, 16, 17, 18, 60)
L
c
ød
s
H1
Connection type spigot DIN/EN/ISO (code 0, 16, 17, 18, 60) 1), forged material (code 40, 42, F4) 2)
MG DN NPS c (min) ød H1 L s
Connection type Connection type
0 16 17 18 60 0 16 17 18 60
10 10 3/8" 25.0 - 12.0 13.0 14.0 17.2 12.5 108.0 - 1.0 1.5 2.0 1.6
15 1/2" 25.0 18.0 18.0 19.0 20.0 21.3 12.5 108.0 1.5 1.0 1.5 2.0 1.6
Dimensions in mm
MG = diaphragm size
1) Connection type
Code 0: Spigot DIN
Code 16: Spigot EN 10357 series B, formerly DIN 11850 series 1
Code 17: Spigot EN 10357 series A/DIN 11866 series A formerly DIN 11850 series 2
Code 18: Spigot DIN 11850 series 3
Code 60: Spigot ISO 1127/EN 10357 series C/DIN 11866 series B
2) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
Code F4: 1.4539, forged body
Connection type spigot DIN/EN/ISO (code 17, 60) 1), investment casting material (code C3) 2)
MG DN NPS c (min) ød H1 L s
Connection type Connection type
17 60 17 60
10 10 3/8" 25.0 13.0 17.2 12.5 108.0 1.5 1.6
15 1/2" 25.0 19.0 21.3 12.5 108.0 1.5 1.6
Dimensions in mm
MG = diaphragm size
1) Connection type
Code 17: Spigot EN 10357 series A/DIN 11866 series A formerly DIN 11850 series 2
Code 60: Spigot ISO 1127/EN 10357 series C/DIN 11866 series B
2) Valve body material
Code C3: 1.4435, investment casting
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7 Dimensions

7.2.2 Spigot ASME/BS (code 55, 59, 63, 64, 65)
L
c
ød
s
H1
Connection type spigot ASME/BS (code 55, 59, 63, 64, 65) 1), forged material (code 40, 42, F4) 2)
MG DN NPS c (min) ød H1 L s
Connection type Connection type
55 59 63 64 65 55 59 63 64 65
10 10 3/8" 25.0 9.53 9.53 17.1 - 17.1 12.5 108.0 1.2 0.89 1.65 - 2.31
15 1/2" 25.0 12.70 12.70 21.3 21.3 21.3 12.5 108.0 1.2 1.65 2.11 1.65 2.77
20 3/4" 25.0 19.05 19.05 - - - 12.5 108.0 1.2 1.65 - - -
Connection type spigot ASME BPE (code 59) 1), investment casting material (code C3) 2)
MG DN NPS c (min) ød H1 L s
10 20 3/4" 25.0 19.05 12.5 108.0 1.65
MG = diaphragm size
1) Connection type
Code 55: Spigot BS 4825, part 1
Code 59: Spigot ASME BPE/DIN 11866 series C
Code 63: Spigot ANSI/ASME B36.19M schedule 10s
Code 64: Spigot ANSI/ASME B36.19M schedule 5s
Code 65: Spigot ANSI/ASME B36.19M schedule 40s
2) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
Code C3: 1.4435, investment casting
Code F4: 1.4539, forged body
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7 Dimensions

7.2.3 Spigot JIS/SMS (code 36)
L
c
ød
s
H1
Connection type spigot JIS/SMS (code 36) 1), forged material (code 40, 42, F4) 2)
MG DN NPS c (min) ød H1 L s
10 10 3/8" 25.0 17.3 12.5 108.0 1.65
15 1/2" 25.0 21.7 12.5 108.0 2.10
Dimensions in mm
MG = diaphragm size
1) Connection type
Code 36: Spigot JIS-G 3459 schedule 10s
2) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
Code F4: 1.4539, forged body
7.2.4 Threaded socket DIN (code 1)
R
L
t
SW2
H
H1
Connection type threaded socket (code 1) 1), brass material (code 12) 2)
MG DN NPS H H1 L n R SW 2 t
10 12 3/8" 23.0 11.0 55.0 2 G 3/8 22.0 13.0
15 1/2" 29.0 14.0 75.0 2 G 1/2 25.0 15.0
Connection type threaded socket (code 1) 1), investment casting material (code 37) 2)
MG DN NPS H H1 L n R SW 2 t
10 12 3/8" 25.0 13.0 55.0 2 G 3/8 22.0 12.0
15 1/2" 30.0 15.0 68.0 2 G 1/2 27.0 15.0
Dimensions in mm
MG = diaphragm size
n = number of flats
1) Connection type
Code 1: Threaded socket DIN ISO 228
2) Valve body material
Code 12: CW614N, CW617N (brass)
Code 37: 1.4408, investment casting
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7 Dimensions

7.2.5 Threaded spigot DIN (code 6)
H1
R
ød1
L
Connection type threaded spigot DIN (code 6) 1), forged material (code 40, 42) 2)
MG DN NPS ød1 H1 L R
10 10 3/8" 10.0 12.5 118.0 Rd 28 x 1/8
15 1/2" 16.0 12.5 118.0 Rd 34 x 1/8
Dimensions in mm
MG = diaphragm size
1) Connection type
Code 6: Threaded spigot DIN 11851
2) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
7.2.6 Cone spigot DIN (code 6K)
R
L
H1
ød1
Connection type cone spigot DIN (code 6K) 1), forged material (code 40, 42) 2)
MG DN NPS ød1 H1 L R
10 10 3/8" 10.0 12.5 116.0 Rd 28 x 1/8
15 1/2" 16.0 12.5 116.0 Rd 34 x 1/8
Dimensions in mm
MG = diaphragm size
1) Connection type
Code 6K: Cone spigot and union nut DIN 11851
2) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
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7 Dimensions

7.2.7 Clamp (code 80, 82, 88, 8A, 8E, 8P, 8T)
L
H1
ød3
ød1
Connection type clamp DIN/ASME (code 80, 88, 8P, 8T), forged material (code 40, 42, F4) 1)
MG DN NPS ød1 ød3 H1 L
Connection type Connection type
80, 8P 88, 8T 80, 8P 88, 8T 80, 8P 88, 8T
10 15 1/2" 9.40 940 25.0 25.0 12.5 88.9 108.0
20 3/4" 15.75 15.75 25.0 25.0 12.5 101.6 117.0
Connection type clamp DIN/ISO (code 82, 8A), forged material (code 40, 42, F4) 1)
MG DN NPS ød1 ød3 H1 L
Connection type Connection type
82 8A 82 8A 82 8A
10 10 3/8" 14.0 10.0 25.0 34.0 12.5 108.0 108.0
15 1/2" 18.1 16.0 50.5 34.0 12.5 108.0 108.0
Dimensions in mm
MG = diaphragm size
1) Valve body material
Code 40: 1.4435 (F316L), forged body
Code 42: 1.4435 (BN2), forged body, Δ Fe < 0.5%
Code F4: 1.4539, forged body
GEMÜ 615www.gemu-group.com 17 / 27
7 Dimensions

www.gemu-group.com18 / 27GEMÜ 615
8 Manufacturer's information
8 Manufacturer's information
8.1 Packaging
The product is packaged in a cardboard box which can be re-
cycled as paper.
8.2 Transport
1. Only transport the product by suitable means. Do not drop.
Handle carefully.
2. After the installation dispose of transport packaging ma-
terial according to relevant local or national disposal regu-
lations / environmental protection laws.
8.3 Storage
1. Store the product free from dust and moisture in its ori-
ginal packaging.
2. Avoid UV rays and direct sunlight.
3. Do not exceed the maximum storage temperature (see
chapter "Technical data").
4. Do not store solvents, chemicals, acids, fuels or similar
fluids in the same room as GEMÜ products and their spare
parts.
8.4 Delivery
●Check that all parts are present and check for any damage
immediately upon receipt.
The product's performance is tested at the factory. The scope
of delivery is apparent from the dispatch documents and the
design from the order number.
9 Installation in piping
9.1 Preparing for installation
WARNING
The equipment is subject to pressure!
▶Risk of severe injury or death
●Depressurize the plant.
●Completely drain the plant.
WARNING
Corrosive chemicals!
▶Risk of caustic burns
●Wear appropriate protective gear.
●Completely drain the plant.
CAUTION
Hot plant components!
▶Risk of burns
●Only work on plant that has cooled
down.
CAUTION
Use as step.
▶Damage to the product
▶Risk of slipping-off
●Choose the installation location so that the product can-
not be used as a foothold.
●Do not use the product as a step or a foothold.
CAUTION
Leakage
▶Emission of dangerous materials.
●Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
NOTICE
Suitability of the product!
▶The product must be appropriate for the piping system
operating conditions (medium, medium concentration,
temperature and pressure) and the prevailing ambient
conditions.
NOTICE
Tools
▶The tools required for installation and assembly are not
included in the scope of delivery.
●Use appropriate, functional and safe tools.
1. Ensure the suitability of the product for each respective
use.
2. Check the technical data of the product and the materials.
3. Keep appropriate tools ready.
4. Ensure appropriate protective gear as specified in the
plant operator's guidelines.
5. Observe appropriate regulations for connections.
6. Have installation work carried out by trained personnel.
7. Shut off plant or plant component.
8. Secure plant or plant component against recommission-
ing.
9. Depressurize the plant or plant component.
10. Completely drain the plant (or plant component) and let it
cool down until the temperature is below the media vapor-
ization temperature and scalding can be ruled out.
11. Correctly decontaminate, rinse and ventilate the plant or
plant component.
12. Lay piping so that the product is protected against trans-
verse and bending forces, and also vibrations and tension.
13. Only install the product between matching aligned pipes
(see chapters below).
14. Pay attention to the installation position (see chapter "In-
stallation position").
9.2 Installation position
The installation position of the product is optional.

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9.3 Installation with butt weld spigots
Fig.1: Butt weld spigots
1. Carry out preparation for installation (see chapter "Prepar-
ing for installation").
2. Adhere to good welding practices!
3. Remove the actuator and diaphragm from the valve body.
4. Weld the body of the product in the piping.
5. Allow butt weld spigots to cool down.
6. Mount the actuator and diaphragm on the valve body.
7. Re-attach or reactivate all safety and protective devices.
9.4 Installation with threaded spigots
Fig.2: Threaded spigots
NOTICE
Thread sealant
▶The thread sealant is not included in the scope of deliv-
ery.
●Only use appropriate thread sealant.
1. Keep thread sealant ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Screw the pipe into the threaded connection of the valve
body in accordance with valid standards.
ðUse appropriate thread sealant.
4. Re-attach or reactivate all safety and protective devices.
9.5 Installation with threaded sockets
Fig.3: Threaded socket
NOTICE
Sealing material
▶The sealing material is not included in the scope of deliv-
ery.
●Only use appropriate sealing material.
1. Keep thread sealant ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Screw the threaded connections into the pipe in accord-
ance with valid standards.
4. Screw the body of the product onto the piping using ap-
propriate thread sealant.
5. Re-attach or reactivate all safety and protective devices.
9.6 Installation with clamp connections
Fig.4: Clamp connection
NOTICE
Gasket and clamp
▶The gasket and clamps for clamp connections are not in-
cluded in the scope of delivery.
1. Keep ready gasket and clamp.
2. Carry out preparation for installation (see chapter "Prepar-
ing for installation").
3. Insert the corresponding gasket between the body of the
product and the pipe connection.
4. Connect the gasket between the body of the product and
the pipe connection using clamps.
5. Re-attach or reactivate all safety and protective devices.
9.7 After the installation
NOTICE
Diaphragms set in the course of time.
▶Leakage
●After disassembly/assembly of the product, check that
the bolts and nuts on the body are tight and retighten if
required.
●Retighten the bolts and nuts at the very latest after the
first sterilization process.
●Re-attach or reactivate all safety and protective devices.
9 Installation in piping

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10 Pneumatic connections
9.8 Operation
Optical position indicator
Valve open Valve closed
10 Pneumatic connections
10.1 Control function
The following control functions are available:
Control function 1
Normally closed (NC):
Valve resting position: closed by spring force. Activation of
the actuator (connector 2) opens the valve. When the actuator
is vented, the valve is closed by spring force.
Control function 2
Normally open (NO):
Valve resting position: opened by spring force. Activation of
the actuator (connector4) closes the valve. When the actu-
ator is vented, the valve is opened by spring force.
Control function 3
Double acting (DA):
Valve resting position: no defined normal position. The valve
is opened and closed by activating the respective control me-
dium connectors (connector2: open/connector 4: close).
Connector 4
Connector 2
Control function 1: connector 4 is closed with a blanking plug.
Control function 2: connector 2 is closed with a blanking plug.
Control function Connectors
2 4
1 (NC) + -
2 (NO) - +
3 (DA) + +
+ = available / - = not available
(see figure for connectors 2 / 4)