Explosion relief valves
Safety products for bulk handling plants and silos
In bulk handling plants and silos, or wherever dustlike particles are handled and stored, dangerous explosions with serious consequences can occur at any time.
Secure protection against explosion effects
HOERBIGER relief valves provide secure protection in this area. Owing to the low mass of moving parts, the valves respond extremely quickly, opening with very low pressure differences, and then closing tight again. The major advantage is uninterrupted system operation in the event of an explosion.
The integrated metallic flame arrester prevents jet flames from escaping into the exterior. HOERBIGER relief valves are thus approved for pressure relief in enclosed spaces, and have proven successful in balancing excess pressure or low pressure conditions.
- efficient protection from the effects of explosions
- special flame absorber
- continued operation after an explosion
- approved safety
HOERBIGER relief valves provide reliable protection of man and equipment against the effects of oil mist, gas or dust explosion.
These very quickly reacting relief valves which already open at a standard set pressure of 0,05 bar, are therefore also suitable for relief action in closed space and work reliably in any installation position.
Their robust and proven design makes HOERBIGER relief valves withstand explosions without damage. They close absolutely tight after explosion, thus preventing secondary explosion and enable uninterrupted operation also after the explosion.
| Technical features | |
| Relief area: | Diameter range: |
| Min: 59,4 cm² | Min: 240 mm |
| Max: 3905 cm² | Max: 1160 mm |
| Industries | |
| Marine industry: ship engines | Petrochemical industry |
| Refinery | Chemical industry |
| Applications | |
| Silos | - Exhaust line and system |
| Compressors | Diesel and gas engines: |
| Machine tools | - Inlet manifold line |
| Gear boxes | - Crank cases |
Your benefits
- fast and reliable opening and closing
- responds and opens even at the lowest pressure setting (0.05 bar standard)
- special flame absorber
- uninterrupted operation, since valves close immediately after an explosion (no secondary explosion)
- valve cover design diverts explosion waves towards the equipment
- virtually maintenance-free
- can be installed in any position (from horizontal to vertical)
- ATEX certified
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