Installation Notes: Standard specification:
1All GYA hydraulic safety valves should be installed vertically.
There should be no resistance at the exit of 2GYA hydraulic safety valve to avoid pressure.
The 3GYA hydraulic safety valve should be specially tested before installation and checked for its official seal.
4 The GYA hydraulic safety valve in use should be inspected regularly.
Design and manufacturing standards: GB/T 12243-2005
Structure length standard: GB/T 12221-2005
Connection flange standard: GB/T 9113
Pressure temperature grade: GB/T 12224-2005
Test inspection standard: GB/T 13927-2008