Tips and Tricks for GF Diaphragm valves

Tips and Tricks for GF Diaphragm valves
GF Piping Systems
Tips and Tricks
Diaphragm valves
Contents
1
General information about this document ................................................................................ 2
1.1
1.2
1.3
1.4
Diaphragm valves 5 series overview .................................................................................... 2
Construction DIASTAR ........................................................................................................ 4
Construction Type 604/605 .................................................................................................. 4
Pressure ranges and spring packages DIASTAR ................................................................. 5
2
Turn the air connections at the DIASTAR ................................................................................. 6
3
Changing the diaphragm DIASTAR DN15-DN50 ....................................................................... 7
3.1 Tool...................................................................................................................................... 8
3.2 Instructions for replacing the diaphragm .............................................................................. 9
4
Changing the diaphragm DIASTAR DN65-DN150 ................................................................... 11
4.1 Replacing the diaphragm ................................................................................................... 11
5
Accessories .............................................................................................................................. 14
5.1
5.2
5.3
5.4
6
Stroke limiter and manual override ..................................................................................... 14
Electrical feedback ............................................................................................................. 14
Electro-pneumatic positioner - DSR ................................................................................... 15
Pilot valve .......................................................................................................................... 15
Spare Parts ............................................................................................................................... 17
Annex ............................................................................................................................................... 18
Tips and tricks – diaphragm valve
General information about this document
1 General information about this document
This document is valid only as a supplement to the existing GF documentation. The remarks and details in the
general user manual are still to be followed.
The following pages should provide support concerning the handling of GF diaphragm valve. Further information
can also be found under www.gfps.com/dv or in the GF planning fundamentals industry.
1.1 Diaphragm valves 5 series overview
Manually operated
General
Type
514
515
517
519
Description
True Union
Spigot ends
Flange version
3-Way
Dimension
DN15-DN50
Pressure level
Materials
PN10/ PN16 *
PVC-U



PVC-C



ABS


PP-H


Accessories


PVDF


PVDF-HP



Sockets

Spigot




Flange
Diaphragm
materials


PP-n
Connection type

Threaded socket

EPDM




PTFE/EPDM




PTFE/FPM




FPM



NBR



Feedback electric




* See pressure-temperature diagram in the respective data sheet
08.2016, GF Piping Systems
2
Tips and tricks – diaphragm valve
General information about this document
Pneumatically operated
General
Type
604
Dimension
DN15
DN15-DN50
Pressure level
PN6
PN6
PN10
PN10 on both
sides
PN16
FC






FO



On request
On request
DA



On request
On request
Spring
assemblies
Number
1
1
3-6
3-6
4-6
6
Recommended
pressure range*
Bar
0-6
0-6
0-6
0-10
4-10
8-16
Pneumatic
connections
Size
G¼“
G¼“
G⅛“
to DN40: G⅛“
from DN40: G¼“
to DN32: G⅛“
from DN32: G¼“
to DN32: G⅛“
from DN32: G¼“
Materials
PVC-U





On request
PVC-C





ABS
On request
On request



PP-H





PP-n
On request
On request

PVDF
















On request














Flange
On request



Threaded socket








Functions
605
DIASTAR
Six
PVDF-HP
Type of valve
body
514 (union)


515 (spigot)
517 (flange)
519 (spigot)
Connection type
Diaphragm
materials
Sockets

Spigot


DIASTAR
TenPlus
DIASTAR
Sixteen**
EPDM


PTFE/EPDM





PTFE/FPM





FPM


On request
On request
On request
On request
On request
On request
On request
On request
Feedback electric



Emergency manual
override



Stroke limiter



Positioner






NBR
Accessories
DIASTAR
Ten
Bus connection
On request
* See Chapter 1.4. pressure range and spring assemblies DIASTAR
**Water use only
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
General information about this document
1.2 Construction DIASTAR
No.
Description
1
Optical position indicator with indicator cap
2
Piston
3a
Control air connection FO / DA
3b
Control air connection FC / DA
4
Full plastic housing
5
Diaphragm holder
6
Thrust piece compressor
7
Diaphragm
8
Valve body
9
Pre-loaded spring sets for FC mode
10
Spring for FO mode
Mode of operation, the DA does not use any springs for the control function
1.3 Construction Type 604/605
No.
Description
1
Optical position indicator
2
Piston
3a
Control air connection FO / DA
3b
Control air connection FC / DA
4
Top part with plastic thread
5
Thrust piece compressor
6
Diaphragm
7
Valve body
8
Indicator for diaphragm material
9
Pre-loaded spring sets for FC mode
10
Spring for control function FO
Mode of operation, the DA does not use any springs for the control function
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
General information about this document
1.4 Pressure ranges and spring packages DIASTAR
The closing force of the actuators were designed for the specified PN pressure level. Operation at very low line
pressures and very strong actuators results in increased wear of the diaphragm:
For example: Use DIASTAR Sixteen (FC) only at medium pressures >PN6.
To extend the working life for low line pressures, adjusting the number of spring packages is recommended. For
the specific dimensioning, please contact your representative at Georg Fischer Piping Systems.
The following figure shows the recommended media-pressure range depending on the DIASTAR valve:
Pressure
range
[Working life]
[Price]
Personal injury or material damage may occur by reducing the spring assemblies!
Reduced spring sets lead to a reduced closing force. At a rising line pressure the valve cannot close or not close
properly due to missing spring sets. Death or serious injury could occur due to open piping. The process can be
influenced negatively.
Configure diaphragm valve and actuator according to your line pressure.
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Turn the air connections at the DIASTAR
2 Turn the air connections at the DIASTAR
The connections for the control medium can be positioned in 90° increments, to optimally align it to the piping
system.
Risk of injury due to uncontrolled evasion of the medium!
If the pressure has not been fully removed, the medium can escape uncontrollably. Depending on the type of
medium, risk of injury may exist.
• Completely relieve pressure from the pipeline before changing the position.
• Hazardous to health, flammable or explosive media:
Completely drain and flush piping system and DIASTAR before changing position. Pay attention to possible
residues.
• Take the appropriate measures to ensure that the medium is collected safely.
1. Turn screws in threaded inserts and fix valve body
in a vice so that the screws come out (see image)
2. FC connection: Pressurise with compressed air.
3. Unscrew the housing nut using a strap wrench or a
special tool (cf. section 3.1, Tool).
4. Turn actuator through 90°.
5. Align the diaphragm parallel to the sealing weir
Hand-tighten.
6. Tighten the housing nut with the strap wrench or
the special tool until the indicator on the housing
nut is aligned with the valve body (cf. mark in
figure).
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN15-DN50
3 Changing the diaphragm DIASTAR DN15-DN50
This chapter describes the changing of a diaphragm.
It is possible to change the diaphragm whether the valve is installed or not.
Type and composition of the medium, pressure and temperature can significantly
influence the working life of the diaphragm. The inspection intervals are adapted to the
particular application requirements.
Maintenance plan
Maintenance interval
Maintenance task
Regularly
Check the connection between top part and valve body for leakage
1 - 2 times a year
Operate to check functionality of permanently open or closed
diaphragm valves
100,000 operations with less than 10 bar nominal
pressure with 20°C and water DIASTAR Ten/ TenPlus
Perform visual inspection of the valve body
Remove the actuator and check diaphragm for damage
Change diaphragm in case of damage
50,000 operations with more than 10 bar nominal
pressure with 20°C and water DIASTAR Sixteen
Perform visual inspection of the valve body
Remove the actuator and check diaphragm for damage
Change diaphragm in case of damage
Colour coding of the diaphragm material
The colour of the index plate shows which diaphragm material is installed. The coding is as follows:
Colour of index plate
Diaphragm material
Black
EPDM diaphragm
White
PTFE/ EPDM diaphragm
Green
PTFE/ FPM diaphragm
Red
FPM diaphragm
Blue
NBR diaphragm
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN15-DN50
3.1 Tool
The following material is required for a change of diaphragm:
• Strap wrench (EasyGrip) or special open-end wrench
• Tip: Use screw clamp and pipe piece for simplified disassembly
3.1.1
Strap wrench EasyGrip
EasyGrip is a strap wrench for pulling and releasing round screw connections.
This tool enables the safe screwing of the housing nut and a quick
maintenance of all GF diaphragm valves.
EasyGrip can be used for all dimensions of the whole range of the diaphragm
valves (DN15-DN50).
No.
3.1.2
198 154 019
Special wrench (GF)
For more frequent maintenance a dimension-dependent special wrench can
be used. By using this tool, the maintenance on a diaphragm valve can be
carried out efficiently.
The wrench with the following code number can be used for hand and
pneumatic valves:
DN
15
29
25
32
40
50
No
198 154 012
198 154 013
198 154 014
198 154 015
198 154 016
198 154 017
Hook wrench
Type
604/605
No.
700 278 354
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Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN15-DN50
3.2 Instructions for replacing the diaphragm
Replacing the diaphragm is possible even with valves already installed. A service video is available on
http://www.gfps.com/dv.
Preparation
Fix DV
Prepare the actuator
1. Screw two screws into
the inserts
2. Tighten the valve in a
vice so that the screws
come out. (Image)
3. FC connection:
Pressurize with
compressed air
Dimension
Screws
DN10-DN25
M6
DN32-DN50
M8
Pulls the diaphragm
upwards and eases
opening.
Install protection
To prevent damage,
use short pipe
spigots or similar to
protect the position
indicator
Use of a small ball
valve for
permanent
pressurisation is
helpful
Place screw clamp
Clamp the DV via
the pipe spigots
and valvebody.
Hand-tighten.
Release actuator
Remove actuator
4. Open the valve with
the EasyGrip or special
wrench
counterclockwise, to
simplify tighten the
vice.
5. Remove top part with
actuator.
08.2016, GF Piping Systems
Protect position indicator
Use union nut to
protect the
actuator.
9
Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN15-DN50
Replace diaphragm
Replace the index plate
6. Unscrew old
diaphragm
10. Change the index plate
at the valve body
7. Screw in the new
diaphragm hand-tight.
Screw on the actuator
11. Screw the upper part of
the valve back onto the
valve body.
Pay attention to correct
position of the sealing
bead.
8. Turn back the
diaphragm again at
least 90° / maximum
360°
Tighten the actuator
12. Using the EasyGrip or
special wrench pull back
to the position. (Position
indicator of the housing
nut aligns with the index
plate)
9. Realign the sealing
bead of the diaphragm
parallel to the sealing
weir. In doing this,
position the lugs of the
diaphragm precisely
between the narrow
guide groove of the
inner housing.
Type 604/605
Use hook key
Pressurise the FC
connection with
compressed air
For changing the
diaphragm, see the
description DIASTAR
Steps 6-10
Screw the upper part of
the valve back onto the
valve body. Pay attention
to correct position of the
sealing bead.
Pull back to the position
using the hook key.
(Semicircular position
indicator of the housing
nut aligns with the index
plate)
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN65-DN150
4 Changing the diaphragm DIASTAR DN65-DN150
In the following chapters, replacing the diaphragm, with large DIASTAR dimensions is described.
Risk of injury due to uncontrolled evasion of the medium!
If the pressure has not been fully removed, the medium can escape uncontrollably. Depending on the type of
medium, risk of injury may exist.
• Completely relieve pressure from the pipeline before changing the position.
• Hazardous to health, flammable or explosive media:
Completely drain and flush piping system and DIASTAR before changing position. Pay attention to possible
residues.
• Take the appropriate measures to ensure that the medium is collected safely.
Replacement of PTFE diaphragm with backing diaphragm!
Personal injury or material damage through uncontrolled leakage or continued flow from the medium pipe or
valve.
• Using PTFE diaphragm with rear position diaphragm EPDM or FPM:
Make sure that both diaphragms are replaced.
4.1 Replacing the diaphragm
Different connections of diaphragms on the compressor piece; depending on the material
and dimension. If the diaphragm material was to be changed, also replace the
compressor!
EPDM diaphragm with thread connection
PTFE diaphragm with bayonet connection
08.2016, GF Piping Systems
11
Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN65-DN150
FO and DA actuator:
Use compressed air to
pressurize the compressor
(description see
diaphragm replacement)
1. Unscrew the protection cap of the position indicator.
2. Turn around the diaphragm valve and place on a union coupling nut to prevent damage to the position
indicator.
3. Unscrew the screws of the valve body.
4. Invert the diaphragm and unscrew it counterclockwise.
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Changing the diaphragm DIASTAR DN65-DN150
5. Install a new diaphragm in the same position as the old diaphragm
• Place the actuator straight up for the first rotations, this is so that the grub screw of the diaphragm holder can
grip the diaphragm.
• Install the diaphragm hand tight clockwise.
• Turn back the diaphragm again at least 90° / maximum 360°.
• Realign the sealing bead of the diaphragm parallel to the sealing weir. In doing this, position the butt strap of
the diaphragm between the narrow guide groove (recess) of the inner housing.
6. Assemble in reverse order
Torque housing screws:
Dimension
Torque
DN65
25 Nm
DN80
30 Nm
DN100
30 Nm
DN150
40 Nm
08.2016, GF Piping Systems
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Tips and tricks – diaphragm valve
Accessories
5 Accessories
The respective accessories are not suitable for all types manual or pneumatic valves. Examination of the
respective specifications is strongly recommended. The information in this document should provide an overview of
available accessories and the respective versions.
5.1 Stroke limiter and manual override
The stroke limiter is suitable only for DIASTAR valves and is used for the mechanical flow limitation. In addition, the
stroke limiter can be used as an emergency manual override. For information on the respective stroke of the DV,
please refer to the Annex.

For DIASTAR Ten, Ten Plus and Sixteen
Stroke limiter and emergency manual override
5.2 Electrical feedback
The electrical feedback is different for manual and pneumatic diaphragm valves.
For manual diaphragm valves, there are 2 different versions:
• AgNi 250V – 6A
• AU 4 -30 V, 1-100 mA
The following options are available for the DIASTAR valves:
Version
Description
EL position indicator with 2 auxiliary switch Ag Ni
Voltage 250 V ~ 6 A
EL position indicator with 2 auxiliary switch Au
Voltage 4-30 V 1-100 mA
EL position indicator with 2 inductive switch NPN
Voltage 5-30 V (10 - 30 V) = 100 mA
EL position indicator with 2 inductive switch PNP
Voltage 5-30 V (10 - 30 V) = 100 mA
EL position indicator with 2 inductive switch Namur Eexi
Intrinsically safe / voltage 8V =
EL position indicator with 2 inductive switch Eecd
Voltage 250V ~ 5 A
EL position indicator with reed contact
DN15-150 / voltage 250V ~ 200 mA
The stroke limiter / emergency manual override and electronic feedback can be
combined. To ensure proper installation with the Diastar valves an appropriate adapter is
necessary.
08.2016, GF Piping Systems
14
Tips and tricks – diaphragm valve
Accessories
5.3 Electro-pneumatic positioner - DSR
Type DSR 100 – DN15-50
Type DSR 101 – DN65-150
Available also with optical position indicator.
•
•
•
•
•
•
Installation on pneumatic control valves
Linear and rotary actuators
Nominal stroke 3 - 28 mm
Self-learning
Input signal 4 - 20 mA
24 V DC
Electro-pneumatic positioner - DSR
5.4 Pilot valve
Various pilot valves are available depending on the requirement:
Type
Description
PV 94
3/2-way valve with compressed air connection G1/8 or hose connector (push - in)
PV 95
3/2-way valve with compressed air connection G1/4
PV 2000
3/2-way and 5/2-way valve
Connection module AS-interface or Profibus interface
MNL 532
Version for 3/2-way and 5/2-way valves
Using a Namur connection plate
Type PV94
Type PV95
Type PV2000
08.2016, GF Piping Systems
Type MNL 532
15
Tips and tricks – diaphragm valve
Accessories
Namur connection plate
If you want to use a NAMUR pilot solenoid valve we offer connection plates. The connection plate is mounted
between the actuator and the pilot solenoid valve.
Namur connection plate
Mounting blocks PP
The mounting plates are designed to allow differently sized manual an pneumatic diaphragm valves to be aligned
on the same pipe centre line by equalising the different heights from the base to the centre line of the pipe. The
mounting blocks can be plugged together to achieve the desired height.
The mounting blocks can be combined as follows:


DN15-DN25: Mounting block 1 directly on the valve, mounting plate 2 and 3 for additional height
equalisation
DN32-DN50: Mounting block 4 directly on the valve, mounting plate 5 for additional height equalisation
Mounting blocks PP
08.2016, GF Piping Systems
16
Tips and tricks – diaphragm valve
Spare Parts
6 Spare Parts
Various spare parts are available for the GF diaphragm valve range of products:
•
•
•
•
•
Upper parts for hand operated valves
Actuators for pneumatic valves
Valve bodies
Sealing kits
Diaphragm
Other spare parts are available depending on the type and dimension. Please check GF product catalogue for
further options.
08.2016, GF Piping Systems
17
Tips and tricks – diaphragm valve
Annex
Annex
Information on the valve stroke
DN
15
Actuator
Valve stroke
Size
Variant
Target (mm)
1
Six, 604/605
6.0
1
Ten
6.0
6.0
*
20
* Maximum valve stroke
25
32
40
2
Sixteen
6.0
2
Six
9.0
2
Ten
9.0
2
Sixteen
9.0
2
Six
12.0
2
Ten
12.0
3
Sixteen
12.0
3
Six
14.0
3
Ten
14.0
4
Sixteen
14.0
3
Six
14.0
4
Ten
14.0
14.0
50
5
Sixteen
14.0
3
Six
14.0
14.0
14.0
4
Ten
22.0
5
Sixteen
22.0
08.2016, GF Piping Systems
18
GF Piping Systems
Worldwide at Home
Our sales companies and representatives
ensure local customer support in over 100 countries
www.gfps.com
Argentina / Southern South America
Georg Fischer Central Plastics
Sudamérica S.R.L.
Buenos Aires, Argentina
Phone +54 11 4512 02 90
gfcentral.ps.ar@georgfischer.com
www.gfps.com/ar
France
Georg Fischer SAS
95932 Roissy Charles de Gaulle
Cedex
Phone +33 (0) 1 41 84 68 84
fr.ps@georgfischer.com
www.gfps.com/fr
Australia
George Fischer Pty Ltd
Riverwood NSW 2210 Australia
Phone +61 (0) 2 9502 8000
australia.ps@georgfischer.com
www.gfps.com/au
Germany
Georg Fischer GmbH
73095 Albershausen
Phone +49 (0) 7161 302-0
info.de.ps@georgfischer.com
www.gfps.com/de
Austria
Georg Fischer
Rohrleitungssysteme GmbH
3130 Herzogenburg
Phone +43 (0) 2782 856 43-0
austria.ps@georgfischer.com
www.gfps.com/at
India
Georg Fischer Piping Systems Ltd
400 083 Mumbai
Phone +91 224007 2001
branchoffice@georgfischer.com
www.gfps.com/in
Belgium / Luxembourg
Georg Fischer NV/SA
1070 Bruxelles/Brüssel
Phone +32 (0) 2 556 40 20
be.ps@georgfischer.com
www.gfps.com/be
Indonesia
George Fischer Pte Ltd –
Representative Office
Phone +62 21 2900 8564
Fax +62 21 2900 8566
sgp.ps@georgfischer.com
www.gfps.com/sg
Brazil
Georg Fischer Sist. de Tub. Ltda.
04571-020 São Paulo/SP
Phone +55 (0)11 5525 1311
br.ps@georgfischer.com
www.gfps.com/br
Italy
Georg Fischer S.p.A.
20063 Cernusco S/N (MI)
Phone +39 02 921 861
it.ps@georgfischer.com
www.gfps.com/it
Canada
Georg Fischer Piping Systems Ltd
Mississauga, ON L5T 2B2
Phone +1 (905) 670 8005
Fax
+1 (905) 670 8513
ca.ps@georgfischer.com
www.gfps.com/ca
Japan
Georg Fischer Ltd
556-0011 Osaka,
Phone +81 (0) 6 6635 2691
jp.ps@georgfischer.com
www.gfps.com/jp
China
Georg Fischer ­Piping Systems Ltd
Shanghai 201319
Phone +86 21 3899 3899
china.ps@georgfischer.com
www.gfps.com/cn
Denmark / Iceland
Georg Fischer A/S
2630 Taastrup
Phone +45 (0) 70 22 19 75
info.dk.ps@georgfischer.com
www.gfps.com/dk
Finland
Georg Fischer AB
01510 VANTAA
Phone +358 (0) 9 586 58 25
Fax
+358 (0) 9 586 58 29
info.fi.ps@georgfischer.com
www.gfps.com/fi
Korea
GF Piping Systems
Georg Fischer Korea Co., Ltd.
Unit 2501, U-Tower
120 HeungdeokJungang-ro
(Yeongdeok-dong)
Giheung-gu, Yongin-si, Gyeonggi-do,
Korea
Phone: +82 31 8017 1450
Fax : +82 31 217 1454
kor.ps@georgfischer.com
www.gfps.com/kr
Malaysia
George Fischer (M) Sdn. Bhd.
40460 Shah Alam, Selangor Darul
Ehsan
Phone +60 (0) 3 5122 5585
Fax
+603 5122 5575
my.ps@georgfischer.com
www.gfps.com/my
Mexico / Northern Latin America
Georg Fischer S.A. de C.V.
Apodaca, Nuevo Leon
CP66636 Mexico
Phone +52 (81) 1340 8586
Fax
+52 (81) 1522 8906
mx.ps@georgfischer.com
www.gfps.com/mx
Singapore
George Fischer Pte Ltd
11 Tampines Street 92, #04-01/07
528 872 Singapore
Phone +65 6747 0611
Fax
+65 6747 0577
sgp.ps@georgfischer.com
www.gfps.com/sg
Middle East
Georg Fischer
Piping Systems (Switzerland) Ltd
Dubai, United Arab Emirates
Phone +971 4 289 49 60
gcc.ps@georgfischer.com
www.gfps.com/int
Spain / Portugal
Georg Fischer S.A.
28046 Madrid
Phone +34 (0) 91 781 98 90
es.ps@georgfischer.com
www.gfps.com/es
Netherlands
Georg Fischer N.V.
8161 PA Epe
Phone +31 (0) 578 678 222
nl.ps@georgfischer.com
www.gfps.com/nl
Norway
Georg Fischer AS
1351 Rud
Phone +47 67 18 29 00
no.ps@georgfischer.com
www.gfps.com/no
Philippines
George Fischer Pte Ltd
Representative Office
Phone +632 571 2365
Fax +632 571 2368
sgp.ps@georgfischer.com
www.gfps.com/sg
Poland
Georg Fischer Sp. z o.o.
05-090 Sekocin Nowy
Phone +48 (0) 22 31 31 0 50
poland.ps@georgfischer.com
www.gfps.com/pl
Romania
Georg Fischer
Piping Systems (Switzerland) Ltd
020257 Bucharest - Sector 2
Phone +40 (0) 21 230 53 80
ro.ps@georgfischer.com
www.gfps.com/int
Russia
Georg Fischer
Piping Systems (Switzerland) Ltd
Moscow 125040
Phone +7 495 748 11 44
ru.ps@georgfischer.com
www.gfps.com/ru
Sweden
Georg Fischer AB
117 43 Stockholm
Phone +46 (0) 8 506 775 00
info.se.ps@georgfischer.com
www.gfps.com/se
Switzerland
Georg Fischer
Rohrleitungssysteme (Schweiz) AG
8201 Schaffhausen
Phone +41 (0) 52 631 30 26
ch.ps@georgfischer.com
www.gfps.com/ch
Taiwan
Georg Fischer Co., Ltd
San Chung Dist., New Taipei City
Phone +886 2 8512 2822
Fax
+886 2 8512 2823
www.gfps.com/tw
United Kingdom / Ireland
George Fischer Sales Limited
Coventry, CV2 2ST
Phone +44 (0) 2476 535 535
uk.ps@georgfischer.com
www.gfps.com/uk
USA / Caribbean
Georg Fischer LLC
9271 Jeronimo Road
92618 Irvine, CA
Phone +1 714 731 88 00
Fax
+1 714 731 62 01
us.ps@georgfischer.com
www.gfps.com/us
International
Georg Fischer
Piping Systems (Switzerland) Ltd
8201 Schaffhausen/Switzerland
Phone +41 (0) 52 631 30 03
Fax
+41 (0) 52 631 28 93
info.export@georgfischer.com
www.gfps.com/int
The technical data are not binding. They neither constitute expressly
warranted characteristics nor guaranteed properties nor a guaranteed durability.
They are subject to modification. Our General Terms of Sale apply.
GFDO_6458_4 (08.16)
© Georg Fischer Piping Systems Ltd
CH-8201 Schaffhausen/Switzerland, 2016
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