AV-1 type wet alarm valve DN65 ~ DN200AV-1-type alarm valve is separated from the valve seat ring, rubber lining valve, water flow alarm check valve. For wet automatic sprinkler system can be installed vertical or horizontal. When the system flows into the equivalent of a multi-nozzle steady flow only, you can start the electric and / or hydraulic automatic warning devices. Body ductile iron manhole covers and hand, Shanghai fm certified fire valves, valve seats for the bronze, DN65 valves valve of stainless steel, other valves valve ductile iron, all valves are made of EPDM for valve lining. AV-1 type alarm valve piping accessories include: system pressure gauge, bypass valve, the main drain valve and the alarm test valve. The bypass valve allows the pressure to produce a small amount of the increase and the slow flow of water into the system-side line, fm certification Fire cocks, without causing the valve to open, in order to reduce the possibility of false alarms. AV-1-300 type rated working pressure of 2.07Mpa. 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 with a globally recognized and leading brand of products, including Tyco (TYCO FIRE & amp; BUILDING PRODUCTS) and Ansul (ANSUL), GRINNELL MECHANICAL, HYGOOD, PYRO-CHEM, RAPID RESPONSE, SKUM. Action Description: When the sprinkler system operation, Shandong fm certified fire valve, water from wet alarm valve, dry pipe valves or deluge valve alarm through DN20 pipe into the pump casing, through its internal 3mm nozzle, resulting in high-speed water jet impact wheel, so that the water wheel, crank shaft and alarm accessories rotation. When the alarm accessories crank rotation, it hit a sustained alarm bell body. Water through the drain DN25 discharged from the pump. As long as the water continues to flow through the sprinkler system, the water alarm will always sound. Close alarm mounted on the wet alarm valve, dry pipe valve or deluge valve control valve can make a silencer. Water alarm after the operation can be automatically restarted. If the operation by closing the alarm control valve leaving the bell stopped ringing, you need to set it again when the sprinkler system, reset the alarm control valve. fm certified fire valve, a mechanical and electrical Anyuan, Tianjin fm certified by the Hubei Chong Fire cocks Anyuan Electrical Equipment Co., Ltd. to provide. fm certified fire valve, a mechanical and electrical Anyuan, Tianjin 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 the telephone or pictures on this page, for the latest information, contact: Liu law.