The importance of the installation of relief valves: Wind package Relief Valve is an important mine safety production safety project, according to the "Coal Mine Safety Regulations" provisions of Article 439 of the operation must be equipped with reliable safety valve and drain valve on the air bag, and There inspection hole. Must be periodically remove grease air package. The new installation or maintenance of the air bag after the application of 1.5 times the working pressure air compressor to do the hydrostatic test. In the air bag discharge piping must be installed pressure relief valve, pressure relief valve diameter shall not be less than the diameter of the duct, release pressure of 1.25 to 1.4 times the pressure relief valve domain and the principles of maximum working pressure of the air compressor: This release pressure valve from the cylinder, piston assembly, protective cover and other components. 1 *: cylinder flange and the upper and lower ends of the cylinder block assembly welding (or cast) is made, in order to enhance the wear resistance and prevent rust cylinder made of stainless steel. 2 *; piston group consists of cardboard, O-rings, piston rod and the like. Piston assembly from the cylinder can be loaded via the card board on the left and the piston assembly is fixed in the cylinder, so that it can not move around. 3 *: protective cover from the flange, Simplified and door welding (or cast) together. When releasing the pressure relief valve, a protective cover prevents piston flying out assault, play a security role. The pressure relief valve mounted air compressor system package export pipeline stroke is on the air flow direction, when the air compressor system is working properly, the system pressure ≤0.785 (8kgf / cm2), under this pressure, the pressure relief valve work properly. When the air bag due to soot fire or for some reason within the air bag gas explosion, the system temperature, pressure transient increases, when the pressure was raised to 1.03 ± 0.049 (10.5 ± 0.5kgf / cm2), the lever pull off immediately pressure relief valve to release the pressure in the air bag and piping hot, high pressure gas is rapidly released so help ease the shock wave, avoiding accidents use pressure relief valve: The pressure relief valve is used for ground or underground air compressor systems, air bag installed in the outlet pipe is on the air flow direction, from the security role. Mines and non-coal mines can be used, so long as there is a place where the air compressor can be. Venus breweries such as air compressors, bottle factory air compressor, air compressors and other ship models and pressure relief valve options: air bag according to the diameter of the duct to be, GB specification is QHF-50, QHF-65 , QHF-80, QHF-100, QHF-125, QHF-150, QHF-200, QHF-250. According to the air bag's working pressure and pressure relief valve pressure, working pressure wind package Relief valve wind package should work pressure, according to the national standard for all of the air bag pressure relief valve is working pressure should be 8 kg, release pressure must be 1.25-1.4 times the working pressure, which is 10-11.2 kg. Another (many manufacturers say is a patented product, please verify product patent number of customers to buy, so as not to be deceived). The company also can provide customers with a variety of professional custom size, protection air bag pressure relief valve pressure values. ?