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8140VACUUM RELIEF VALVE
The Finekay Model 8140 Vacuum Relief Valve is used when vacuum relief is the only requirement. Intake relief necessary under working conditions is achieved by a spring or weight loaded pallet. This feature of the Model 8140 reduces the possibility of tank damage. The Model 8140 helps to provide increased fire protection and safety.
Structure Features
1.Sizes 2" through 12"；
2.Available in aluminum, carbon steel,stainless steel and other materials；
3.Modular construction；
4.FEP diaphragms can effectively prevent seat and pallet from sticking, select the seal structure according to the operation conditions；
5.The flanges of inlet and outlet are ANSI B16.5 150Lb RF.(It can be required by user).
6. attains full stable lift at only 10% overpressure
