Water alarm alarm valve, dry pipe valves, deluge valve to the water alarm should be used ≥20mm diameter pipe valve plant, with a total length should not exceed 23m (75ft) valve 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. VSR-F type and VS-F-type flow indicator VSR-F and VS-F type is used for wet sprinkler systems paddle type flow indicator, via the United States UL registered marine valves, valve inspection and certification types FM, British LPC certified for standard 10 # -40 # steel, specifications for 50mm to 200mm. The device can also be used for large systems split device switch. Valve Factory | Tianjin Valve | 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!