Structure in particular and uses: 
 The vent valve from the valve body, blasting the film, of parts of the holder, valve cover, a heavy hammer. Rupture installed in the middle of the gripper, and the valve body with bolts. System overpressure, the blast membrane rupture, instant relief reset the bonnet bounce under gravity. Venting valve replacement of the explosive film straight up off the body and gripper. 
 Rupture process characteristics-owned by the user, mainly for building materials, metallurgy, petroleum, chemical and other pedestrian area departments. 







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