Light water alarm impeller designed with the latest technology valve plant, can emit a high-frequency, high-intensity sound. Alarm, accessories and pump housing envelope by corrosion-resistant alloy stainless steel valves, drive shaft without lubrication. When installing the bell placed in an envelope tightly fitting into the valve, eliminating the need for special cover or special protection. This is suitable for all types of sprinkler systems. Water alarm alarm valve, dry pipe valves, hydraulic alarm deluge valve to the pipe diameter should be used ≥20mm total length should not exceed 23m (75ft), in order to reduce pressure losses. Water alarm valve should not exceed a height of more than 6.1m (20ft). 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. Valve plant, valves, electromechanical by the Hubei Chong Chong Anyuan Anyuan Electrical Equipment Co., Ltd. to provide. Hubei Chong Anyuan Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) strong, credible, in Wuhan, Hubei fire equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead electromechanical create Anyuan into the brilliant and you work for a better future!