safety valve

safety valve

A safety valve is a valve mechanism for the automatic release of a substance from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set named pressure safety valves (PSV) or pressure relief valves (PRV). The other parts of the set are named relief valves, safety relief valves, pilot-operated safety relief valves, low pressure safety valves, vacuum pressure safety valves.

Safety valve a kind of automatic pressure discharging equipment which is driven by the static pressure of the medium before the valve. It features outstanding full activation. It’s used in the gas or vapor application. There are two kinds of safety valves, low-lift safety valve and full-lift safety.

Safety valve is an important kind of relieving attachment for the boiler, pressure vessel and other pressure equipments. The action reliability and performance of it is directly related to the safety of the equipment and the person and closely related to energy saving and environmental protection.

Safety valve can guarantee the safety effectively. When the system pressure is above the specified value, it will open to release a part of the gas into the outer space to maintain the system pressure under the system pressure. In that case, we can avoid the accidents from happening because of the overhigh pressure.