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System Sensor PIBVEXP Explosion-Proof Supervisory Switch (Butterfly & Post-Indicator Valves) Overview The PIBVEXP is an explosion-proof supervisory switch manufactured by System Sensor. It is designed to monitor the open position of post indicator and butterfly type valves in hazardous locations. Encased in a rugged NEMA 1, 7, and 9 enclosure, the switch operates reliably across a wide temperature range (−40 °F to 160 °F) and features a single conduit entrance, ample wiring space, and cover screws that are captured to avoid loss during servicing. prod-edam.honeywell.com 2prod-edam.honeywell.com 2 Key Features & Benefits Explosion-proof enclosure meeting NEMA 1, 7, 9 ratings for use in hazardous environments (Class I, Groups C & D; Class II, Groups E, F, G; Div. 1 & 2). prod-edam.honeywell.com 2BulkIndustries.com 2 SPDT (Form C) contact rated for 15 A at 125/250/480 VAC; also rated for smaller DC loads. prod-edam.honeywell.com 1 Operating temperature from −40 °F to 160 °F (−40 °C to 71 °C) for wide environmental tolerance. prod-edam.honeywell.com 1 Compact, rugged construction with a spring-loaded actuating lever to interact with valve flags/targets. prod-edam.honeywell.com 1 Single tapped conduit entrance, captured screws, and brass pressure connection for durability. prod-edam.honeywell.com 1 Technical Specifications Specification Detail Brand / Model System Sensor PIBVEXP Type Explosion-Proof Supervisory Switch Valve Types Monitored Butterfly valves and post-indicator valves (prod-edam.honeywell.com) Contact Type & Rating SPDT (Form C); 15 A @ 125/250/480 VAC; also 1/2 A @ 125 VDC, etc. (prod-edam.honeywell.com) Enclosure Rating NEMA 1, 7, 9 (prod-edam.honeywell.com) Operating Temperature −40 °F to 160 °F (−40 °C to 71 °C) (prod-edam.honeywell.com) Dimensions ~ 3.75″ L × 3.25″ D × 4.5″ H (prod-edam.honeywell.com) Pressure Connection ½-inch NPT male brass fitting (prod-edam.honeywell.com) Shipping / Product Weight ~ 1.75 lbs (shipping) (prod-edam.honeywell.com) Hazardous Location Classes Class I, Groups C & D; Class II, Groups E, F, G; Divisions 1 & 2 (prod-edam.honeywell.com) Applications Monitoring open position of butterfly or post-indicator valves for fire protection / flow status. Use in hazardous environments (e.g. boiler rooms, fuel-gas areas) where explosion proof equipment is required. Integration with fire supervisory panels or alarm systems to indicate valve status compliant with NFPA-13 / NFPA-72. prod-edam.honeywell.com 1 Installation & Best Practices Mount on valve so the switch flag or target actuating lever engages the valve’s open indicator properly. prod-edam.honeywell.com 1 Install via a ½-inch NPT tapped hole; if not present, drill/tap per manual. prod-edam.honeywell.com Ensure conduit entry orientation per rising or falling flag installation to prevent binding. prod-edam.honeywell.com Secure cover screws (captured) and conduit fitting to maintain enclosure integrity. Periodically inspect flag alignment, lever operation, and switch actuation. Why Buy From Apex Controls Apex Controls stocks genuine System Sensor PIBVEXP supervisory switches, with verified specs, OEM housing, explosion-proof rating, and quality control. We provide fast shipping, replacement parts knowledge, and support for compliance with fire protection & hazardous location codes.
