AMD-1 pressure-pressure maintenance device AMD-2 Air Compressor controlled pressure maintenance device AMD-2-type air compressor-controlled pressure maintenance pressure switch fm product certification spray device with a field adjustable 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. PS10A / PS40A Series pressure switch PS10A series is a pressure type flow detection switch Chengdu fm certification spray products, divided PS10-1A (including an SPDT contact) Tianjin fm certification spray products, PS10-2A (including two SPDT contact) In wet, dry and pre-action system, connected to the valve on the water pipe fm alarm interface certification spray products, according to water monitoring valve is turned on. Only one sprinkler head movement can flow pressure switch operation. In the pre-action system connected to the outlet valve at the pipeline pressure monitoring system, when the pressure decreases, issue a low pressure alarm signal. Operating pressure can be between 4-20psi (0.28-1.38bar) regulation. Switch must be installed vertically. fm certification spray products, fm certification spray products, a mechanical and electrical Anyuan Anyuan by the Hubei Chong 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!