300PSI Grooved Butterfly Valve with Signal Gearbox Tamper Switch

300PSI Grooved Butterfly Valve with Signal Gearbox Tamper Switch Approval: FM approved UL/ULC listed Usage: Before sprinkle head, before and after wet alarm valve and deluge valve, high-rising building fire fighting system, industrial factory building fire protection system. Technical specification : Pressure rating: 300psi Temperature range : -20℃ to 120℃. Structure:Butterfly type and groove end Application : Indoor and outdoor usage Double –seal  disc : resilient EPDM coated Factoroy Installed supervisiory tamper switch assembly Design standard : API 609 Groove standard ANSI/AWWA C606 Top flange standard: ISO 5211 Test standard :FM 1112/UL 1091 Model : GD-381X/GD-381Y 300PSI Grooved Butterfly Valve with Gearbox Conforms: ANSI / AWWA C606 Standard Clear Waterway design Connections: Grooved Ends Sizes: 2", 2½", 3", 4", 5",  6", 8", 10", 12" Maximum Working Pressure: 21 BAR / 300 PSI (Maximum Testing Pressure: 600 PSI) conforms to UL1091 & ULC/ORD-C1091 & FM class 1112 Maximum Working Temperature: -20°C to 80°C Design Standard: API 609 Application: Indoor & Outdoor Use, Fire inflow water, drain pipe, high-rising building fire fighting system, industrial factory building fire protection system. Coating Details: Epoxy coated interior and exterior by Electrostatic Spray  conforms to AWWA C550 Disc:Disc: EPDM Rubber Encapsulated Ductile Iron Wedge Top Flange Standard:ISO5211 / 1