GEM 717 User manual

GEMÜ 717
Manually operated ball valve
Operating instructions
EN
further information
webcode: GW-717

All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
12.04.2021
www.gemu-group.com2 / 40GEMÜ 717

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 .................................................... 4
3 Product description ................................................... 5
3.1 Construction ........................................................ 5
3.2 Description ........................................................... 5
3.3 Function ............................................................... 5
3.4 Port positions ...................................................... 6
3.5 Product label ....................................................... 6
4 Correct use ............................................................... 7
5 Order data ................................................................. 8
6 Technical data .......................................................... 10
6.1 Medium ................................................................ 10
6.2 Temperature ........................................................ 10
6.4 Mechanical data .................................................. 11
7 Dimensions ............................................................... 12
7.1 2/2-way body ....................................................... 12
7.2 Multi-port design ................................................. 18
8 Manufacturer's information ....................................... 22
8.1 Delivery ................................................................ 22
8.2 Packaging ............................................................ 22
8.3 Transport ............................................................. 22
8.4 Storage ................................................................. 22
9 Installation in piping .................................................. 22
9.1 Preparing for installation .................................... 22
9.2 Installation with inserts for solvent cementing . 23
9.3 Installation with inserts for welding ................... 24
9.4 Installation with screw-type inserts ................... 24
9.5 Installation with flanged connection .................. 25
10 Electrical connection of electrical position indicators
(optional accessories) ............................................... 25
10.1 Connection diagrams .......................................... 25
11 Commissioning ......................................................... 26
12 Operation .................................................................. 26
12.1 Handle .................................................................. 26
12.2 Hand lever ............................................................ 27
12.3 Threaded connection locking devices ............... 27
13 Troubleshooting ........................................................ 29
14 Inspection and maintenance ...................................... 30
14.1 Spare parts .......................................................... 31
14.2 Replacement of spare parts ............................... 34
14.3 Cleaning the product ........................................... 35
15 Removal from piping ................................................. 35
16 Returns ..................................................................... 35
17 EU Declaration of conformity 2-way ball valve ........... 36
18 EU Declaration of conformity 3-way ball valve ........... 37
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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.
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
Danger of explosion
Corrosive chemicals!
Hot plant components!
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
materials.
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.

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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
3
1
4
2
Item Name Materials
1 Ball valve body PVC-U, PVC-C, ABS, PP-H or PVDF
2 Pipe connec-
tions
PVC-U, PVC-C, ABS, PP-H or PVDF
3 Anti-twist pro-
tection
POM
4 Hand lever HIPVC
Ball valve seals FPM, EPDM, FFKM
Ball valve seat
seals
PTFE
3.2 Description
The GEMÜ 717 2/2 or 3/2-way plastic ball valve has an ergo-
nomically designed hand lever and is manually operated. The
seat seal is made from PTFE and the O-ring seals can be
made from either EPDM or FKM.
3.3 Function
The product is a 2/2 or 3/2-way plastic ball valve equipped
with a plastic manual operator. The threaded connection lock-
ing device enables the unions to be locked in place.
The valve body and the seal material are available in various
designs as shown in the datasheet. Optional accessories are
available on request (see chapter "Accessories").
3 Product description

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3 Product description
3.4 Port positions
3.4.1 T-port
CLOSED end
position
OPEN end posi-
tion
Condition as
supplied to cus-
tomer OPEN
Delivery condition
Code T
12
3
1 2
3
1 2
3
Optional port positions, can be user adjusted
Code 2
12
3
12
3
12
3
Code 3
12
3
12
3
12
3
Code 4
1 2
3
12
3
12
3
3.4.2 L-port
CLOSED end
position
OPEN end posi-
tion
Condition as
supplied to cus-
tomer OPEN
Delivery condition
Code L
12
3
12
3
12
3
Optional port positions, can be user adjusted
Code 6
2
3
1
12
3
12
3
3.4.3 Control ball
View with a scale Control ball
Code R
View with a scale Control ball
For 0°- 90° control range, linear control characteristic
between port position and percentage flow rate.
For ball configuration (R), an indicator plate is fitted on the
ball valve body.
NOTE: Ball configuration (R) cannot be retrofitted to standard
2/2-way bodies at a later date.
3.5 Product label
The product label is located on the actuator. Product label
data (example):
Design in accordance with order data
Device-specific data
Year of manufacture
Item number Traceability number Consecutive number
- XXXXXXXX|YYYY
The month of manufacture is encoded in the traceability num-
ber and can be obtained from GEMÜ. The product was manu-
factured in Germany.
The operating pressure stated on the product label applies to
a media temperature of 20 °C. The product can be used up to
the maximum stated media temperature. You can find the
pressure/temperature correlation in the technical data.

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4 Correct use
DANGER
Danger of explosion
▶Risk of death or severe injury.
●Do not use the product in potentially
explosive zones.
WARNING
Improper use of the product
▶Risk of severe injury or death.
▶Manufacturer liability and guarantee will be void.
●Only use the product in accordance with the operating
conditions specified in the contract documentation and in
this document.
The product is designed for installation in piping systems and
for controlling a working medium.
The product is not intended for use in potentially explosive
areas.
The product is controlled via a manual operator.
●Use the product in accordance with the technical data.
4 Correct use

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
Ball valve, plastic, manually operated 717
2 DN Code
DN 10 10
DN 15 15
DN 20 20
DN 25 25
DN 32 32
DN 40 40
DN 50 50
DN 65 65
DN 80 80
DN 100 100
3 Body configuration Code
2/2-way body D
Multi-port version M
4 Connection type Code
Union end with insert (solvent cement or weld
socket) - DIN
2
Union end with flange EN 1092, PN 10, form B,
face-to-face dimension FTF EN 558 series 1, ISO
5752, basic series 1
4
Union end with inch insert - BS (socket) 33
Union end with flange ANSI Class 125/150 RF 39
Union end with inch insert – ASTM (socket) 3M
Union end with JIS insert (socket) 3T
Union end with insert (for IR butt welding) - DIN 78
Union end with insert (Rp threaded socket) - DIN 7R
5 Ball valve material Code
PVC-U, grey 1
PVC-C 2
PVDF 20
ABS 4
PP-H, grey 5
6 Seal material Code
FKM 4
EPDM 14
FFKM F5
7 Control function Code
Manually operated 0
Manually operated, hand lever, lockable L
8 Ball config./port position Code
2/2-way body
R ball (control ball)
for 0°- 90° control range
linear control characteristic between port position
and percentage flow rate
R
Multi-port version
L-port, standard end position "Open", connection 2
and 3 open,
L-port, standard end position "Closed", connection
1 and 3 open
L
T-port, standard end position "Open", connection 1,
2 and 3 open,
T-port, standard end position "Closed", connection
1 and 3 open
T
T-port, end position "Open", connection 1 and 3
open,
T-port, end position "Closed", connection 1 and 2
open
2
T-port, end position "Open", connection 1 and 2
open,
T-port, end position "Closed", connection 2 and 3
open
3
T-port, end position "Open", connection 2 and 3
open,
T-port, end position "Closed", connection 1, 2 and 3
open
4
L-port, end position "Open", connection 1 and 3
open,
L-port, end position "Closed", connection 1 open
6
9 Type of design Code
Without
Insert in PE 1187
5 Order data
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Order example
Ordering option Code Description
1 Type 717 Ball valve, plastic, manually operated
2 DN 15 DN 15
3 Body configuration M Multi-port version
4 Connection type 33 Union end with inch insert - BS (socket)
5 Ball valve material 1 PVC-U, grey
6 Seal material 14 EPDM
7 Control function 0 Manually operated
8 Ball config./port position L L-port, standard end position "Open", connection 2 and 3 open,
L-port, standard end position "Closed", connection 1 and 3 open
9 Type of design Without
5 Order data
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6 Technical data
6.1 Medium
Working medium: Corrosive, inert, gaseous and liquid media and steam which have no negative impact on the phys-
ical and chemical properties of the body and seal material.
6.2 Temperature
Media temperature: see Pressure / temperature diagram
Seal material: FPM: -15 – 210 °C
EPDM: -20 – 95 °C
Ambient temperature: Valve body ABS: -20 to 60 °C
Valve body PP-H: 5 to 60 °C
Valve body PVC-U, PVC-C: 10 to 50 °C
Valve body PVDF: -5 to 50 °C
6.3 Pressure
Operating pressure: Pressure / temperature diagram
0
2
4
6
8
10
12
14
16
-40 -20 020 40 60 80 100 120 140
PVDF
PVC-C
PVC-U
PP-H
ABS
Operating pressure [bar]
Temperature [°C]
Data for extended temperature ranges on request. Please note that the ambient temperature and media temper-
ature generate a combined temperature at the valve body which must not exceed the above values.
Kv values: DN Body configuration
2/2-way Multi-port (code M)
(code D) (code R) T-port T-port T-port T-port L-port
12
3
1 2
3
12
3
12
3
12
3
10 4.8 4.98 2.2 1.5 2.4 4.7 2.9
15 12.0 5.28 3.3 2.1 3.9 11.7 4.4
20 23.1 8.10 8.1 5.7 8.7 22.8 9.0
25 46.2 15.36 12.3 8.4 14.7 45.6 15.9
32 66.0 28.68 23.4 16.2 27.6 63.0 28.5
40 105.0 35.52 28.5 19.8 36.0 102.0 37.2
50 204.0 64.08 54.0 37.2 72.0 192.0 73.2
65 315.0 - - - - - -
80 426.0 - - - - - -
100 570.0 - - - - - -
Kv values in m³/h
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6 Technical data