Safety Valves

safety valve (8)

Safety and relief valves are valves that open automatically to relieve overpressure. A safety valve is used in pressurized air, gas or steam service and fully opens at the set pressure. A relief valve is used in liquid service and has an opening characteristic that varies with flow rate. Safety and relief valves perform an essential safety function by preventing overpressure ruptures in plants, pressure vessels, and piping systems.