Residue oil pump for safety requirements of the pneumatic valve

） Slag pump to toxic or flammable medium with security pneumatic valve, pneumatic valve must adopt closed-end security and prevent leakage of pneumatic valve cover and shielding gaskets.
　　 ） Slag pump pneumatic valve seat should be fixed on the pneumatic valve body, must not loose, all rev type pneumatic valve safety should set limits on the height of the organization.
　　 ） Lead slag pump type pneumatic safety valve should be respectively 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.
　　 ） Pneumatic valve 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.
　　 ） In order to prevent the adjusting spring organization is loose, the amount of compression and changed has good pressure, must be a locking device and seal.
　　 ） Slag pump 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.
　　 ） Setting pressure is greater than. Mpa steam with safety pneumatic valve or medium than ° C temperature of the air or other gas pneumatic valve with the security, should be able to prevent discharge medium erosion spring directly.
　　 ） Slag 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 spanner should not impede the motion of the pneumatic valve
.