Explosion relief valves
Efficient protection for man, machine and plant
Valve closed
Valve open
Wherever oil mist or gas mixtures are generated, or where pulverized media is handled and stored, dangerous explosions with serious consequences can occur at any time. HOERBIGER relief valves provide reliable protection of man and equipment against the effects of oil mist, gas or dust explosions.
In the event of an oil mist, dust or gas ignition the HOERBIGER explosion relief valve opens quickly. This reduces explosion overpressure to a safe level without any flame transmission to the surrounding area.
After the explosion pressure subsides, the valve reseals, thus preventing the inrush of air, which reduces the risk of subsequent explosions and fire. This allows for an uninterrupted operation after an explosion.
Depending on the application different types of HOERBIGER explosion relief valves are available.
- Type EVO and EVS for oil mist and gas explosions for offshore applications
- Type EVN for oil mist and gas explosions for onshore applications
- Type EVN for dust explosions
- Type EVM and EVT for gas explosions in dual-fuel and gas engines