1, with the kind of safety valve

Valve play a security role in the system. When the pressure exceeds a predetermined value, the safety valve is opened, the system portion of the gas / fluid into the atmosphere / pipe outside, so that the system pressure does not exceed the allowable value, in order to ensure that the system is not due to excessive pressure and accidents. Safety valve is a safety valve, its opening and closing pieces by the external force in a normally closed state when the device or media pressure inside the pipe increases, automatic opening exceeds a predetermined value, through the media to the outside of the system to prevent emissions medium pressure inside the pipe or equipment exceeds a predetermined value. Safety valves are automatic valves, mainly for boilers, pressure vessels and piping, control pressure does not exceed a predetermined value, for personal safety and equipment operation plays an important protective role.

Press safety valve valve opening height can be divided inching valve and safety valve, inching valve opening stroke height ≤0.05d0 (minimum emission throat diameter);? Safety valve opening height ≤0.25d0 (minimum emission throat diameter).