AMD-1 pressure-pressure maintenance device AMD-2 Air Compressor controlled 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, preaction system pressure dry pipe network control start. Air compressor without pressure tank supporting the use, 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 STAR company S465 pressure maintenance device Tyco Fire Suppression and Building Products (TYCO FIRE SUPPRESSION & amp; BUILDINGPRODUCTS, hereinafter referred to as TFS & amp; BP) is having a unified strategic business units Yichang good quality FM certification valve, with globally recognized products and leading brands, including Tyco (TYCO FIRE & amp; BUILDING PRODUCTS) and Ansul (ANSUL), GRINNELL MECHANICAL, HYGOOD, PYRO-CHEM, RAPID RESPONSE, SKUM. RC-1 RC-1 type delay-Delay is installed in the water pressure fluctuations (such as a public water supply system) wet systems Yichang good quality FM certification valve to prevent water pressure fluctuations due to the system false alarms. When the nozzle moves, stable continuous flow of water into the sprinkler system pipe network, wet alarm valve plate open, the water flows from the throttle valve alarm port inlet orifice assembly (pore size 5.6mm), part of the water from the outlet section of the throttle assembly 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 Yichang good quality FM certification valve, water flows out 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 Yichang good quality FM certification valve, the delay chamber through the throttle body assembly water 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. FM certification valve company _ _ Year Anyuan electromechanical valve FM approved by the Hubei Jingzhou create Anyuan Electrical Equipment Co., Ltd. to provide. Hubei Chong Anyuan Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) is a leader in Wuhan, fire protection equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Anyuan electromechanical leadership in creating the staff warmly welcome all inquiries negotiations to create create a better future for electromechanical Anyuan.