AV-1 type wet alarm check valve DN65 ~ DN200 ductile iron manhole covers and hand, Chongqing fm certified fire valves, valve seats for the bronze, Shandong fm certified fire valve, DN65 valve, stainless steel valve, other valves ductile iron valve, all valves are made of EPDM for valve lining. Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. is engaged in agents, sales of wet systems Tyco Fire products specialist RC-1 RC-1 type delay-Delay installed in water pressure fluctuations (such as a public water supply system) the water pressure fluctuations prevent false alarms caused by the system. When the nozzle moves, stable continuous flow of water into the sprinkler system pipe network, fm certification Fire cocks, wet alarm valve plate open, the water flows from the throttle valve alarm port inlet orifice assembly (pore size 5.6mm), Chengdu fm certification Fire cocks, some water from the throttle assembly outlet orifice (aperture 3.2mm) out of the rest of the water injection to the delay chamber. Fluctuations in water pressure in the water supply system, an instant rise in water pressure valve plate to open, there is water flowing from the alarm port, due to the delay buffer cavity, will not alarm immediately. When the momentary fluctuations in pressure drop, the valve plate closed, delayed water chamber through the throttle body assembly outlet orifice emissions. Tyco Fire Suppression and Building Products TFS & amp; BP provide fire solutions and ancillary buildings to build solutions for commercial, industrial, institutional, government agencies and homes. Its focus is research and development in chemical and water-based fire-fighting technology, providing innovative technology solutions and global certification. Key products include sprinkler systems and valves, piping products and accessories, manual fire fighting equipment, fire detection / suppression systems, fire extinguishing agent. AV-1 type wet alarm check valve DN65 ~ DN200 ductile iron manhole covers and hand seat for the bronze, DN65 valve, stainless steel valve, other valves of ductile iron valve, all valves are made of EPDM for clapper facing. Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. is engaged in agents, sales of professional firms fm Tyco Fire certification Fire cocks Product | Year Anyuan electromechanical valves | Chongqing fm certified by the Hubei Chong Fire cocks Anyuan Electrical Equipment Co., Ltd. to provide. fm certification Fire cocks | Year Anyuan electromechanical valves | Chongqing fm certification Fire cocks Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) this year introduced a new upgrade, the above picture is for reference, please call Tel picture on this page or to obtain the latest information, contact: Liu law.