The patented eSuppressor™ is a high-rate discharge extinguisher used for explosion suppression and chemical isolation systems. Its electro-mechanical operation is unique to the industry, as no pyrotechnic devices are required for activation. The eSuppressor™ has standard features that include pressure monitoring, lock out-tag out capability and LED indication of device status. A key benefit is that all the safety functions are fully monitored, which is not possible for any device employing pyrotechnic actuators, with full redundancy and third party SIL2 certification. Upon detection of an explosion event, the eSuppressor valve mechanism is actuated via the Explosion Protection Control Unit. The highly specified trigger mechanism allows the valve flap to open extremely rapidly (less than 10ms), which allows the suppressant to be discharged through the nozzle system into the protected volume.

The E-HRD suppressor is designed for installation on all types of vessels, ducts and pipes for dusts, gases and hybrid mixtures. The suppressor valve is closed with a domed disc and sealing ring and then pressurized with nitrogen. Beneath the domed disc are the actuation devices, comprising a detonator and line-cutting charge. Within approximately 1.5 milliseconds the line-cutting charge cuts a grooved hole approximately 300 degrees around the domed disc. Once the domed disc is cut, the nitrogen presses the disc down and the entire cross section is made available for the suppressant powder to flow out. Through a special nozzle system, an optimal deployment of the suppressant powder is achieved.

The IEP Technologies Firewolf™ suppressor is designed to discharge suppressant in milliseconds within a process vessel, or to mitigate the propagation of flame through interconnected ductwork. It consists of a pressurized suppressant storage cylinder and a valve body that contains a dust-ignition proof, weatherproof enclosure. The Firewolf™ houses an electro-mechanical actuation mechanism and does not use pyrotechnic detonators or gas generators.

Upon detection of an incipient explosion, an actuation signal is sent to the suppressor by the control panel. The electronics of the valve trigger two pairs of capacitors which discharge into the redundant electro-motor coils, releasing the flap valve mechanism of the Firewolf™ and initiating the rapid release of the pressurized, suppressant into the protected area within milliseconds.

This suppressor features an electromechanical, non-explosive actuation for increased safety and reduced storage, licensing, and transportation concerns; reduced maintenance costs as there are no replacement actuators or detonators; and a Valve Transport Lock that functions as both a lockout/tag-out provision and promotes safe entry into protected vessel.