HOERBIGER Safety Solutions Explosion Protection System Components Advantages: • Non-explosive operation increases safety, and reduces storage, licensing, and transportation concerns. • Up to five year initiator service life reduces maintenance costs. • DOT approved, the suppressor is shipped fully pressurized, reducing installation time and cost. • Meets new stringent requirements of NFPA 69. • Corrosion resistant valve body. • Supervised, integral OSHA lockout/tag-out provision promotes safe entry into protected vessels. • Supervisory low pressure switch continuously monitors suppressor nitrogen pressure. • Innovative field-rechargeable design reduces service time, recharge costs and production downtime. • Designed for use in hazardous locations; Class II, Div. I. Application The IEP Technologies PistonFire II Suppressor is designed to discharge suppressant in milliseconds within a process vessel or to mitigate the propagation of flame through interconnected ductwork. It is used in conjunction with IEP Technologies’ range of control panels and detectors. IEP Technologies sophisticated computer modeling techniques determine the quantity and size of suppressors to be used. These techniques predict reduced explosion pressures based on actual process conditions and detector settings. Description The IEP Technologies PistonFire II Suppressor consists of a pressurized suppressant storage cylinder and a valve body that contains a dust-ignition proof, weatherproof NEMA enclosure. The NEMA enclosure houses the actuating mechanism, pressure switch, pressure gauge, fill valve, OSHA supervisory switch, and field wiring connections. The NEMA enclosure is completely sealed to ambient via screw cover and an explosion proof quick-disconnect connector for easy connection to field wiring. The OSHA supervisory switch prevents the arming of the explosion protection system when the OSHA lockout plate is installed. The OSHA lockout plate can be secured in place to the designated location on the PistonFire II housing. The pressure switch provides a trouble signal to the control panel if the suppressor pressure drops out of its proper operating pressure. Upon detection of an incipient explosion, the suppressor is sent an actuation signal. The actuating mechanism initiates the rapid release of the pressurized, suppressant into the protected area within milliseconds. 417-1 South Street, Marlborough, MA, 01752 ph 855.793.8407 fax 508.485.3115 www.IEPTechnologies.com

Specifications Construction: Valve body: corrosion resistant materials including stainless steel and aluminum. Spun cylinder: painted carbon steel (red). Operating Plate: painted carbon steel (red). Actuation: Non-explosive PF Initiator included with suppressor. Approvals: ATEX and FM approved. 417-1 South Street, Marlborough, MA, 01752 ph 855.793.8407 fax 508.485.3115 www.IEPTechnologies.com