Wind package Relief Valve is an important mine safety production safety project, according to the "Coal Mine Safety Regulations" Article 439 states: action must be equipped with reliable safety valve and drain valve on the air bag, and 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 maximum working pressure of the air compressor in public the advantages of pressure relief valve: in public Advantage pressure relief valve: national design patents, patent certificate: ZL201030169562.1 national utility model patents, patent certificate: ZL201220267061.0 Shanxi Coal electromechanical products designated units Henan Coal Science Research Institute testing and inspection reports a "wire cutting, CNC turning, milling, drilling, grinding, plating, corrosion and heat treatment "and undergo a rigorous impact, cylinder pressure, piston air tightness, tension piston assembly testing procedure strictly as many as 97 sets of processing a combination pressure relief Purpose Valve: The pressure relief valve is used for ground or underground air compressor systems, installed opposite the direction of the airflow play a security role in the air bag outlet line. 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 marine pressure relief valve of the model: the air bag in accordance with 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 air bag pressure relief valve should the air bag's working 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. If necessary, contact: Tel: 15378706183 Name: Wu Liping