Safety instruction for the choice of pneumatic valve type

there is mass production safety pneumatic valve spring type and lever type two kinds big. And impulse pneumatic type safety valve, pilot operated safety pneumatic valve, pneumatic valve switching, security, decompression pneumatic valve, pneumatic valve static weight type safety, etc. Pneumatic valve spring type safety relies mainly on the spring force and work, spring loaded safety in pneumatic valve is closed and not closed, usually inflammable, explosive or toxic medium should choose enclosed, steam or inert gases can choose not enclosed, in the spring loaded safety pneumatic valve with a wrench and not with a wrench. Spanner role is mainly check the pneumatic disc flexibility, sometimes also can be used as a manual emergency pressure relief. Pneumatic valve lever type safety relies mainly on the lever and weight and the power of the work, but as a result of pneumatic valve lever type safety product large tend to limit the scope to choose. At high temperature to choose the safety of pneumatic valve with the radiator.

security are the main parameters of pneumatic valve displacement, the displacement is determined by the calibre of the pneumatic valve seat and pneumatic valve opening, the opening height is different, is divided into tiny qi type and whole qi type two kinds. Tiny qi type refers to the opening height of pneumatic pneumatic valve seat throat diameter / ~ l /. All rev type refers to the opening height of pneumatic pneumatic disc/seat throat diameter.