+GF+ 514 Betriebsanleitung Seite 2

GF Piping Systems
Instruction Manual
Diaphragm Valve
Types 514, 515, 517, 519
Related documents to this instruction manual
The « Georg Fischer Planning Fundamentals » give you additio-
nal information for the use of diaphragm valves. The Planning
Fundamentals may be obtained from your Georg Fischer
sales company or via www.piping.georgfischer.com
1. Intended use
The diaphragm valves type 514, 515, 517 and 519 are intended
exclusively for shutting off and conveying media in the allowa-
ble pressure and temperature range or for controlling flow in
piping systems into which they have been installed. The valve is
intended to be used within the chemical resistance of the valve
and all components involved.
2. Requirements for user and operator responsibility
• The diaphragm valve must only be used according to the
specifications for which it has been intended, as indicated
in the previous paragraph
• Piping system must be installed by professionals and its
functionality is checked regularly
• Installation, operation, service and repairs must only be
carried out by qualified personnel
• Users and operators must be instructed on a regular basis in
all aspects of work safety and environmental protection espe-
cially those pertaining to pressure–bearing piping systems
• The users and operators must be familiar with the
operating instructions and must adhere to the information
contained therein
3. Safety messages
Observe instruction manual
The instruction manual is part of the product and an impor-
taint module of the safety concept. Non-observance could
result in serious injury or death.
• Read and observe instruction manual
• Instruction manual must be available at the product
• Pass instruction manual to following users of the product
4. Transport and storage
Please handle, transport and store the diaphragm valve
carefully:
• The diaphragm valve should be transported and
stored in its original packaging
• The valve must be protected from harmful influences
such as dirt, dust, humidity, and especially heat and
UV radiation
• The connection ends should not be damaged mechanically
or in any other way
• The diaphragm valve should be stored in opened position
5. Product description
5.1 Types
Type 514 Type 515 Type 517 Type 519
Spigot ends Flanges Branched type
True Union Design
5.2 Assembly
The assembly of the four valve types is exactly the same, only
the connection to the piping system is different. Below shown
the assembly of the type 514 as an example:
Locking device
Hand wheel
Housing nut
Inner housing
Spindle assembly
incl. diaphragm holder
Compressor
Diaphragm
Valve body
Union end
Union nut
5.3 Recognition feature for diaphragm material
Colour of the friction lock shows type of diaphragm material:
black EPDM diaphragm
white PTFE/EPDM diaphragm
green PTFE/FPM diaphragm
red FPM diaphragm
blue NBR diaphragm
6. Installation
6.1 General information
Diaphragm valve installation in a piping system is subject to the
same regulations as other connecting elements of pipes, fit-
tings and related piping system components. Further chapters
in the Planning Fundamentals give you additional information
regarding installation and jointing methods.
Before installing or commissioning diaphragm valves read
this instruction manual carefully. This instruction manual
gives valuable recommendations to avoid personal injuries
and material damages.
Georg Fischer Piping Systems Ltd. CH-8201 Schaffhausen (Switzerland)
Phone +41(0)52 631 30 26 / info.ps@georgfischer.com / www.gfps.com
700.278.074 / GFDO 6164/1a, 4a (08.11)
© Georg Fischer Rohrleitungssysteme AG
CH-8201 Schaffhausen/Schweiz, 2013
Printed in Switzerland
6.2 Installation process
Use of grease on the threaded connection bet-
ween housing nut and valve body
The use of grease, especially on amorphous
WARNING
plastics, can cause stress cracking on the valve
body. Death or serious injury could occur due to contact with
the medium. The function of the valve is not warranted.
• Irrespective of the valve body material, do not use grease for
threaded connection between housing nut and valve body
Before installation, please check the diaphragm valve
accordingly to the following points:
• Inspect the diaphragm valve for transport damages.
Damaged valves must not be installed
• Only use diaphragm valves where the valve and the
diaphragm correspond specifically to the materials,
pressure rating, type of connection and dimensions
for the particular application
• Carry out function test: open and close the diaphragm
valve manually
• Diaphragms and other sealing elements should be
checked before mounting to make sure there are no
damages from aging. Aged parts which exhibit hardening
or fissures must not be installed
• You must not install valves which do not function properly
• After installation another function test is to be carried out
Safety messages for the installation of diaphragm valves
NOTICE
Fixation of the diaphragm valve
Due to temperature changes, longitudinal or lateral forces
may occur if thermal expansion is constrained.
• Absorb forces via respective fixed points in front or after the
valve
Operation of a valve causes reactive forces which could
damage the valve
• Mount the diaphragm valve as a fixed point with the
designated fastener or reinforce the piping directly before
and after the diaphragm valve with suitable supports
Superimposed loadings could damage the diaphragm valve
• Diaphragm valve and piping must be aligned
True Union Design
All materials with valve body type 514
1.Loosen the union nut and push them toward the designated
piping end
2.Depending on the type of piping end, connecting parts are
cemented, screwed or welded. Further chapters in the
Planning Fundamentals include additional information
3.Diaphragm valve is then positioned between the connecting
parts
4.Manually tightened the union nuts
Cement connections
UPVC, CPVC, ABS - types 514, 515
Only identical materials may be jointed together. Pipe
sections with solvent cement connections should be
rinsed unpressurized with water after the drying time
(see chapter jointing methods in the Planning Fundamentals).
Fusion connections
PP-H, PP-n, PVDF, PVDF-HP - types 514, 515, 519
Only identical materials may be jointed together (see chapter
jointing methods in the Planning Fundamentals).
Flange connections
All materials with valve body type 517
The tightening torque can be found in the "Georg Fischer
Planning Fundamentals".
7. Commissioning
Diaphragm valve pressure testing is subject to the same
regulations as the piping system; however, the test
pressure may not exceed the PN of the diaphragm
valve.
NOTICE
Operate the diaphragm valve
Damage of diaphragm valve is possible if actuating torque is
too high.
• Operate the valve with normal manual hand power
• Use no additional tools which increase actuating torque
NOTICE
Control operations
Due to cavitation the diaphragm valve could be damaged.
• Use valve only at optimal control operation conditions
Information
Slight hysteresis occurs in the steady state characteristics
when the direction of actuation is changed.
Procedure commissioning
• Check that all valves are in the required open or closed
position
• Fill the piping system and deaerate completely
• The component with the lowest PN determines the
maximum allowable test pressure in the piping section
• The valves and connections should be checked for a tight
seal during the pressure test
8. Normal operation and maintenance
The connection between the bonnet and valve body should be
checked for tightness at regular intervals. Please consider
at leakage or other defects the chapter"Help in case of
problems" and additional information in the Planning Funda-
mentals.
Check functionality regularly
We recommend checking the functionality of diaphragm
valves which are kept permanently opened or closed.
This can be done by unseating the diaphragm manually
1 to 2 times a year.
Safety messages for normal operations and maintenance
Diaphragm valve used as end valve
Medium can exit uncontrollably, if piping system
is opened under pressure. Death or serious injury
WARNING
could occur due to contact with the medium.
• The end valve may only be opened when the medium can
be caught or carried off safely and splashing is prevented by
taking appropriate measures
Dismounting diaphragm valve or opening the
housing nut
The medium may exit uncontrollably or flow out
WARNING
from the pipe or valve, whether under pressure
or not. The valve or pipe may contain residue or
remnants of aggressive, hazardous, flammable or explosive
medium. Death or serious injury could occur due to contact
with the medium.
• Release all pressure from the piping system
• Empty the piping system completely
• Rinse the system, if aggressive, hazardous,
flammable or explosive media are involved
• Empty the diaphragm valve completely when it
has been dismounted.In order to do so, let the
valve drain completely
8.1 Hand wheel locking device
Hand wheel in opened (left) and locked position (right)
8.2 Replacing diaphragm
We strongly recommend that the diaphragm is inspected
on a regular basis. The diaphragm can be checked
by opening the bonnet.
Replacing diaphragm
Damage to property and/or personal injuries due
to medium which may exit uncontrollably or flow
WARNING
out from the pipe or valve.
• If a PTFE diaphragm is used: Replace both, PTFE and
backing diaphragm EPDM or FPM.
1. Empty the piping system completely and release all
pressure. Consider the safety message „Dismounting
diaphragm valve or opening the housing nut"
2. Open valve
3. Open housing nut with a strap wrench
Information
On opening: unlatching of the friction lock is clearly audible
NOTICE
Dismounting diaphragm
Position indicator will break, if spindle assembly is completely
turned off. Position of the diaphragm can no longer be shown
by the indicator.
• On opened valve: Only turn the hand wheel two times to
loosen the diaphragm from the inner housing
4. First do two turns with the hand wheel to loosen diaphragm
from the inner housing. Hold hand wheel tight and screw
diaphragm counter clockwise out of the inner housing
5. Hold hand wheel tight. Screw new diaphragm handtight
clockwise into the inner housing and then turn the
diaphragm back by min. 90°.
For assembly: Diaphragm tabs must be positioned between
the narrow guiding bars of the inner housing
6. Replace friction lock on the valve body, therefore loose it
with a screw driver. Push new element in
7. Put bonnet in opened position on the valve body
8. Screw housing nut with a strap wrench tight, till...
... a uniform all-around gap of 0.5 up to 1 mm between
valve body and bonnet is achieved and
... the half-round position indicator aligns with the friction
lock
8.3 Replacing seals
Only for option „pressure tight housing"
1. Empty the piping system completely and release all
pressure. Consider the safety message "Dismounting
diaphragm valve or opening the housing nut"
2. Open valve
3. Slide locking device in (unlocked)
4. Release fixation of the hand wheel: Push with a
screw driver (Philips, Pozidriv, TORX max. Ø 4mm) in
the biggest round hole of the hand wheel
5. Take hand wheel and screw driver off. Push screw
driver out of the hand wheel
6. Open housing nut with a strap wrench
Information
On opening: unlatching of the friction lock is clearly audible
7 . Remove housing nut
8. Take inner housing and spindle assembly out of the valve
body
9. Push spindle device out of the inner housing with a little
tap on the position indicator
10. Before mounting grease all o-rings with silicone grease.
Replace seal on spindle nut and on inner housing
11. Screw position indicator out of the spindle nut. Screw new
position indicator with o-ring hand-tight into the spindle
nut
TIP
Thread of the position indicator is secured. By screwing the
position indicator out, first turns are running rough
On assembling: Spindle nut must be screwed in completely
12. Assembly till step 6 is done in reversed order
For assembly: Diaphragm tabs must be positioned between
the narrow guiding bars of the inner housing
13. Screw housing nut with strap wrench tight, till...
... a uniform all-around gap of 0.5 up to 1 mm between
valve body and bonnet is achieved and
... the half-round position indicator aligns with the friction
lock
14. Put hand wheel on. The engagement is clearly audible.
9. Help in case of problems
Please observe the chapter „Help in case of problems" in
the Planning Fundamentals and the safety messages in this
document when handling defects! The Planning Fundamen-
tals may be obtained from your Georg Fischer sales company
or via Internet.
10. Accessories and spare parts
Orders for spare parts for diaphragm valves should include all
specifications. Only the prescribed original spare parts from
Georg Fischer must be used.
Accessories
• Electrical feedback with the following switches AgNi, Au
• Modification set for pressure tight housing
These accessories and spare parts as well as further
information may be obtained from your Georg Fischer sales
company or via www.piping.georgfischer.com
Additional information
The above mentioned Planning Fundamentals may be ob-
tained from the George Fischer sales company
responsible for your country or from the internet
Georg Fischer Piping Systems Ltd.
CH-8201 Schaffhausen(Switzerland)
Info.ps georgfischer.com or www.piping.georgfischer.com
@
EC declaration of conformity
The manufacturer, Georg Fischer Piping Systems Ltd,
CH-8201 Schaffhausen (Switzerland) declares, that the
diaphragm valve types 514, 515, 517 and 519 fulfil all corre-
sponding regulations of the Pressure Equipment Directive
97/23/EC.
The products fulfil also the following corresponding regulati-
ons of the Community which are harmonized:
• Building Construction Directive 89/106/EC
Following harmonized standards were also used:
• EN ISO 16138
The CE emblem on the valve refers to this accordance
(as per the directive on pressure equipment, only valves
larger than DN25 can be labelled with CE).
Operation of these diaphragm valves is prohibited until
conformity of the entire system into which the diaphragm
valves have been installed is established according
to one of the above mentioned EC Directives.
Information
Modifications on the diaphragm valve which have an effect
on the given technical specifications and the intended use
render this declaration of conformity null and void.
Schaffhausen, 2010-02-01