Explosion-proof valve is widely used in building materials, metallurgy, chemical, electrical and other sectors, as compressed explosive pipeline pressure relief device. Explosion-proof valve is particularly suitable for coal grinding systems and the use of flammable gas storage warehouse substances. Simple proof valve structure, the welded steel cylinder and explosion-proof valve slices. When the system pressure is greater than the gauge pressure, explosion-proof valve itself rupture, explosion prevention system to ensure personal safety and production.