AMD-1 pressure-pressure maintenance device AMD-2 Air Compressor controlled pressure maintenance device AMD-1 type pressure-pressure to maintain the pressure regulator valve means Hunan fm certified fire with live adjustable for pre-action system , dry system or deluge system, the pressure to start the pre-action dry pipe system of control. AMD-1 using compressed air in place, such as an air compressor with a pressure tank, factory air, nitrogen bottle, air pressure with a pressure regulator must be higher than the pressure in the pipe system requirements. AMD-1 is used in place of the central company D-2, GEM companies F324 and S460 STAR company pressure maintenance device. AMD-2 type air compressor-controlled pressure maintenance device with a field adjustable pressure switch for pre-action system, dry system or deluge system, pressure control system pre-action dry pipe network boot. Air compressor without pressure tank supporting the use of certified fire fm valve, by the pressure switch on / off control of the air compressor on / off, to maintain the pressure in the pipe network setting range. AMD-2 is used in place of the central company DU-2, GEM companies F326 and S465 STAR company pressure maintenance device. 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 fm certified fire valves, piping products and accessories, manual fire fighting equipment, fire detection / suppression systems, fire extinguishing agent. PS40A pressure switch Chengdu fm certified fire valve, for detecting an increase in the pressure setpoint 10psi (0.69bar) ??or drop 10psi (0.69bar) ??of pressure. Typical applications are in the pipeline pressure monitoring system in a dry system, or monitoring compressed air tanks, air and water pressure, PS40-1A containing a pair of SPDT contacts, the pressure drop operation; PS40-2A containing two pairs of SPDT contacts, an increase in the pressure setpoint 10psi (0.69bar) ??or drop 10psi (0.69bar) ??occurred. Pressure adjustment range 10-175psi (0.7bar-12bar), the pressure switch must be installed vertically. Chengdu fm certification Fire cocks Fire cocks _ _fm certified by the Hubei Chong Chong Electromechanical 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!