Lever Safety Valve

A lever safety valve is an automatic, spring-loaded overpressure protection device equipped with an external manual override lever, engineered to protect boilers, pressure vessels, and steam piping from catastrophic over-pressurization. The valve remains closed until system pressure exceeds the calibrated spring force, at which point the disc rapidly lifts to discharge excess fluid or gas; the manual lever allows operators to manually actuate the valve to test the sealing disc, clear potential scaling, and ensure mechanical readiness during routine safety checks. These highly reliable safety components are mandatory specifications in steam boiler houses, power generation stations, and high-pressure air networks, allowing plant safety directors to maintain absolute operational safety by importing certified lever safety valves directly from expert manufacturers in China via our advanced B2B commercial platform.