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Explosion Suppression Systems – IEP Technologies – Dry Chemical HRD Extinguisher

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Explosion Protection Systems
Explosion Suppression Systems


The HRD dry chemical extinguisher is designed to discharge suppressant in milliseconds to quench an incipient explosion within a process vessel or to block the propagation of flame through interconnected ductwork. It is a spherical refillable container constructed of a high strength steel alloy. It consists of a storage container, fill valve, burst disc valve assembly, safety plate, 30-inch long actuator cable and an explosive triggered actuator. A lifting ring is provided for ease of handling.


  • Discharges dry chemical explosion suppressant in milliseconds.
  • Low pressure switch meets NFPA 69 pressure monitoring requirements.
  • DOT or Transport Canada (TC) approved construction enables transport while filled and pressurized.
  • Sizes available to meet all application requirements.
  • Actuator supervised by IEP Technologies control panel for high reliability.
  • Field-rechargeable container to reduce recharge costs and downtime.
  • Charged with food compatible KIDDEx® – Sodium Bicarbonate chemical suppressant.


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Additional Resources:

Product Literature # 1 Hoerbiger Safety Solutions

Product Literature # 2 Protecting Critical Facilities Against Explosions

Product Literature # 3 Dry Chemical HRD Extinguishers



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