Festo CP Factory, Original Operating Instructions

Page: 63 / 90

Commissioning
© Festo Didactic 8065842 en
63
One-way flow control valves are used for regulating the exhaust air volume of double-acting drive units. In
the opposite direction, the air flows through the flow control valve having a full cross-sectional flow.
The piston is clamped between air cushions by free supply air and throttled exhaust air (improvement of the
operating behaviour even if the load changes).
Requirements
– Pneumatic port of the cylinders has been made.
– Compressed air supply is switched on.
Procedure
1. At first, turn off the two one-way control valves completely. Then turn them on again by about one
rotation.
2. Start a test run.
3. Turn on the one-way flow control valves slowly until the required piston speed has been reached.
Documents
•
Data sheets
One-way flow control valve 193138 (GRLA-M5-QS-4-D)
One-way flow control valve 175055 (GRLZ-M5-QS-3-LF-C)