... reliable.Apply to oil, seawater or other medium. Many valves of gate,globe,check,butterfly,ball, which are reliable.Apply to ... oil, seawater or other medium.Specifications: 1) Pressure rating: 150 - 1500lbs 2) Size: 2 - 72" 3) Temperature: -29 - 425 ... gear, hydraulic actuator ,pneumatic actuator, electric actuator etc. many valves of gate,globe,check,butterfly,ball