A passive isolation valve for explosion safety
The Ventex Passive Explosion Isolation Valve (photo) isolates interconnected equipment to prohibit the propagation of an explosion. It has a very robust design that is certified to handle organic dusts, metal dusts, hybrid mixtures and gases with one-way or two-way acting systems. The function of this passive isolation valve is very simple. During normal operation, air flows through the valve and passes around the poppet on the inside. During an explosion, the poppet is forced shut by the explosion pressure wave and locked into place. This creates a seal in the process line and effectively prevents the spread of flames and pressure. Additionally, there are signaling devices included on all valves to indicate an explosion has occurred. — Rembe Inc., Fort Mill, S.C.