Keeping the World Flowing
27
12.8 Pneumatic Power Supply
Verify allowed supply pressure range on actuator label.
Verify medium composition. Contact Rotork Fluid
Systems to check the compatibility with the supply
medium.
12.9 Pneumatic Connections
Preliminary Operations
A. Verify sizes of pipes and fittings per applicable plant
specifications
B. Clean the inside of the connection pipes by washing them
with a suitable detergent and by blowing air into them
C. The connecting pipes must be properly shaped and fixed
to prevent stress or loosening of threaded connections
Note: For tapered-thread fluid connections, apply a
thin layer of thread sealing product (Loctite 577 or
equivalent) to ensure a good seal.
Connect the pneumatic power source in accordance
to the applicable operating diagram, please refer to
specific job for details.
Depending upon the control circuit design,
pneumatically powered actuators may exhaust the
power supply gas into the atmosphere during normal
operation. This may present an unacceptable hazard.
Do not feed a single-acting actuator from the
spring container side after having removed the exhaust
silencer, especially if the line valve is blocked.
Inlet port
Fig 12.14 Inlet port for Single-acting actuator
Exhaust port
Fig 12.15 exhaust port for Single-acting Actuator
Inlet/exhaust
port
Inlet/exhaust port
Fig 12.16 Inlet exhaust port for Double-acting actuator
12.0 Operation
A4 US
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A4
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A4
A4 US
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