Min. Order Reference FOB Price
1 Set US$800.00-30,000.00 / Set
Product Description
Oilwelll Drilling Use Emergency Unloading Valve(Safety Valve) Emergency unloading valve (safety valve) is a direct acting self resetting valve. Its release mechanism is a spring-loaded ball and ball seat structure. When the pressure exceeds the set value, it will overflow automatically, so as to ...