Georg Fischer 244, 240 Operating Manual
Instruction Manual
Pneumatic actuator
PA 30 – PA 90
25
The technical data is not binding
and not an expressly
warranted characteristic of the
goods. It is subject to change.
Please consult our General
Conditions of Supply.
2
Table of Contents
1. Introduction
2. General Information
2.1 Hazard notices
2.2 Abbrevations
3. EU declaration by manufacturer
4. Intended Use
5. Safety Tips
5.1 Due care required of the operator
5.2 Special hazards
5.3 Transport and storage
6. Technical Data
6.1 The Actuator
6.2 Torque characteristics
6.3 Direction of rotation of the actuator
6.4 Actuator Dimensions
7. Valve Components
7.1 Setting the End Stops
7.2 Stroke limiter «close»
7.3 Stroke limiter «open»
7.4 Setting the «close» position of
the butterfly valve Type 037
8. Installation of Supplementary Kits
9. Control Diagrams
10. Spare Part List
Page
4
4
5
6
7
10
15
18
19
20
3
1. Introduction
This instruction manual contains the technical data
as well as instructions for installation, operation
and maintenance of the pneumatic actuators type
PA 30 - PA 90.
2. General Information
2.1 Hazard notices
Hazard notices are used in this manual to warn you
of possible injuries or damages to property. Please
read and abide by these warnings at all times!
Warning symbols
Danger
Warning
Caution
Meaning
Imminent acute danger!
Failure to comply could result in death or extremely
serious injury.
Possible acute danger!
Failure to comply could result in serious injury.
Dangerous situation!
Failure to comply could lead to injury or damage to
property.
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2.2 Abbreviations
DA Double acting
FC Fail-safe to close
FO Fail-safe to open
DN Dimension
The Planning Fundamentals referred to in the text
may be obtained from your sales company or on
the Internet at www.piping.georgfischer.com.
3. EU declaration by manufacturer
The manufacturer: Georg Fischer Piping Systems
Ltd, 8201 Schaffhausen (Switzerland), declares
that the pneumatic actuators type PA 30 - PA 90
are not machines ready for use as defined by the EU
machine guideline and cannot therefore comply fully
with the requirements of this guideline.
Commissioning of this actuator is only forbidden
until the conformity of the complete system in
which the valve and actuator are fitted corresponds
with the specified EU guidelines 98/37/EU.
Employed EU guidelines:
98 / 37 EG machine guideline
Modifications to the actuator and to control assemblies installed, which influence the technical data
specified in this instruction manual and use for
the intended purpose, and therefore significantly
modify the actuator, invalidate this manufacturer
declaration.
Warning
5
Warning
4. Intended Use
The descriptions and instructions in the following
apply to the pneumatic actuators:
Type PA 30 - PA 90 part-turn valve actuator
DA / FC / FO
When built into GF Piping Systems valves and connected to a system control, the purpose of these
actuators is to
• actuate fittings with a control pressure of 2.8 to
7 bar and up to a driving torque of 20 Nm, and
• depending on the type of pneumatic actuator,
double acting (type designation DA) or single
acting with spring for fail-safe to CLOSE (type
designation FC) or single acting for fail-safe to
OPEN (type designation FO),
• control these valves to the OPEN and CLOSED
positions via a built-in solenoid valve. The solenoid
valve must be either supplied ex GF Piping
Systems works or already mounted by the
customer,
• indicate these positions OPEN and CLOSED via
an electric signal to the system control, if the
actuator is equipped for this with the respective
sub assembly,
• enable control of these positions through manual
operation in case of failure in the compressed air
supply, if the actuator is equipped for this with the
respective subassembly.
The actuator is not intended for applications other
than those specified here.
Prohibited in particular are:
• control pressures above 7.5 bar,
• manual operation with forces higher than permit-
ted according to prEN12570 (maximum retention
forces for operation of valves),
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• operating solenoid valves and position feedback
units under water.
The actuator can only function properly if it has been
connected professionally as per the Control Diagrams on page 43 for double acting operation and
for failsafe OPEN or fail-safe CLOSE operation,
respectively.
If the information contained in these instructions is
not observed, the manufacturer cannot accept liability for the above products.
5. Safety Tips
5.1 Due care required of the operator
The pneumatic actuators described herein were
designed and manufactured with consideration to a
risk analysis and the respective harmonized European standards. They correspond to the latest technology and meet the mentioned prescribed safety
standards.
Warning
Safety on the job can, however, only be realized if
all the necessary measures have been taken. It is
therefore the responsibility of the system engineer
and the operator of such systems into which the
valve with pneumatic actuator has been built to plan
such measures and make sure they are carried out.
Warning
7
Warning
The operator must make certain in particular that
• the valve with pneumatic actuator is only used as
it was intended for (see Section 3),
• the design parameters control air pressure and
voltage of electric subassemblies of the pneumatic
actuator, as indicated in the scope of order
and delivery, are true and accurate,
• the pneumatic actuator is only operated when
in perfect working condition and the safety devices
for the system supply of compressed air are
regularly checked to make sure they are in perfect
order,
• only qualifi ed and authorized personnel plan,
connect, and work with the actuator and that
employees are instructed periodically in job
safety matters according to the local regulations
– especially as pertaining to electrical equipment,
and
• personnel is familiar with and observes this in
struction manual and the information contained
herein.
5.2 Special hazards
Warning
8
Single acting, fail-safe OPEN and CLOSE (type
description FO and FC) pneumatic actuators have
pre-loaded springs that bring the valve into the
predefi ned position in case of compressed air loss.
Dismantling these actuators is dangerous and may
only be done by following special repair instructions
(avail able from GF Piping Systems!) and under the
guidance of a safety expert. Dismounting from the
valve may only be done in the safety position after
cutting off the compressed air supply.
Prior to any work on the electric subassemblies of
the pneumatic actuator, the electrical connections of
the control voltage should be disconnected.
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