Blast Protection Damper – BDH
Blast Protection Damper – BDH
€0.00
BDH blast dampers protect against overpressure in heavy industry ventilation systems
Blast Protection Damper – BDH
Halton BDH blast dampers protect against overpressure in offshore, onshore and heavy industry ventilation systems. The BDH blast damper can be installed in rectangular ducts or wall openings. When the blades are in the open position, the device does not cause significant pressure loss, noise or flow disturbance. The BDH has an adjustable arming mechanism to cope with different air velocity and closing pressure requirements. An open-closed indicator is visible on the outside of the damper.
There is no external power source needed to operate the damper. In case of a blast incident, the pressure wave closes the blades. There is a locking mechanism preventing the blades from opening during the negative phase. After a blast incident, the blades remain locked in the closed position, until the damper is set (armed) again.
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Advantages
- For mounting on blast resistant wall surface
- Designed for a maximum long duration blast load with 100 kPa (1.0 bar) reflected peak pressure
- Shock tube tested for detonation (shock) type pressure wave – in compliance with GSA TS01 and ASTM F 1642-04(2010)
- Shock tube tested for deflagration (blast) type pressure wave – in compliance with GSA TS01 and ASTM F 1642-04(2010)
- ATEX certified
- Debris (steel balls and wood plank missile) impact tested in compliance with ASTM E 1886-13a and ASTM E 1996-14a