The IEP Technologies range of passive isolation flap valves are low cost and reliableexplosion isolation solutions which mitigate explosion propagation risks to upstreamequipment. These passive isolation solutions are effective, self-actuating devices providing inlet explosion isolation to protected vessels handling combustible dusts such as dust collectors, cyclones, and other process equipment. Available models include the IsoFlap™ and IsoFlap™-M passive isolation valve. The IsoFlap version is 3rd party certified as a protective system according to EU directive 2014/34/EU (ATEX Directive) and is approved for isolation of dust explosions. The IsoFlap-M has integrated monitoring of dust accumulation level in the valve body and the blade position which meets the requirements of OSHA Combustible Dust Directive, NFPA 654, and NFPA 69. The IsoFlap and IsoFlap-M both have a durable carbon steel valve body and a flap blade of high quality steel alloy. The valve is designed to withstand high maximum reduced explosion pressures (Pred) listed in the specification section below. During operation the flap blade is held open by the process airflow, in case of an explosion thepressure front closes and locks the blade in place, mitigating the propagation of the flame and pressure to the upstream equipment.

Features

Passive design without triggering sensors

Certified according EN16447

IsoFlap-M monitored version fully compliant to NFPA 69 with continuous dust accumulation and flapposition monitoring

Low pressure drop

Short mounting distances

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For process equipment mounted outside or close to an outside wall, explosion relief venting is a viable protection method. However, in order to protect the upstream equipment, it is vital that the protection method includes a means to mitigate propagation of flame and burning materials back upstream.

The IEP Technologies range of passive isolation flap valves are low cost and reliable explosion isolation solutions which mitigate explosion propagation risks to upstream equipment. These passive isolation solutions are effective, self-actuating devices providing inlet explosion isolation to protected vessels handling combustible dusts such as dust collectors, cyclones, and other process equipment.