Stainless steel pump safety technical requirements of pneumatic valve

what are the stainless steel pump safety technical requirements of pneumatic valve
one, setting pressure is greater than. Mpa pneumatic valve with the security of the steam or medium temperature greater than ℃ air or other gas pneumatic valve with the security, should be able to prevent discharge medium erosion spring directly.
2, stainless steel pump steam must pneumatic valve with a wrench with the security, when the medium pressure reach setting % above, can use spanner to ascend, pneumatic disc the wrench on the pneumatic valve action should not get in the way.
3, adjust the amount of spring compression for preventing the organization is loose, and optional change has good pressure, must be a locking device and seal.
4, to toxic or flammable medium with pneumatic valve, pneumatic valve must adopt closed-end security safety and to prevent leakage of pneumatic valve cover and shielding gaskets.
5, stainless steel pump, pneumatic valve seat should be fixed on the pneumatic valve body, must not loose, mooring ty of all revelation pneumatic valve type safety should set limits on the height of the organization.
6 pneumatic valve, stainless steel pump safety even if the damage, should be able to achieve the rated capacity, when damage to the spring, pneumatic valve and other parts can't fly out of pneumatic valve body.
7, for the safety of the superimposed back pressure pneumatic valve, shall, according to the change of the size of the pressure and set back pressure balancing mechanism.
eight, stainless steel pump for pilot operated safety pneumatic valve should be on the pneumatic valve and the main pneumatic valve for sealing and open test, should meet the requirements of the performance of the prescribed standards.