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Airtac Air Relief Valves

Shop for the GZ series of pneumatic manual shut-off pressure relief valves by Airtac. These 3/2 way manual control valves are designed to shut off upstream pressure and to relieve downstream pressure. Choose from the following port sizes: 1/8", 1/4", 3/8", and 1/2". An additional mounting bracket is needed when used in conjunction with an FRL unit.

Product Features:
1. It is module design and can be used with G series F, R, L combination by a bracket (must be purchased separately)
2. This valve can be used as a manual 3/2 way valve.
3. The working indication mark (EXH/SUP) can be checked by eyes.


Click to download the GZ Airtac catalog


This valve meets the standard for installation conducted by an operator specified by OSHA. When the machinery is maintained and serviced, the purge valve (safe on-off valve) shall be used to eliminate the remaining pressure when the air source is cut off. During this operation, the unconscious operation of a third party will cause pressurizing of the end of the pipeline and sudden machinery actuation of the cylinder and other devices, which will cause operator injuries. Therefore, it is stipulated that all the operations for this aim must be added with a lock to prevent the operator injuries caused by the unconscious operation of a third party.

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