When using a wet or dry start to start the system, fm certification fire valves, a rapid response closed nozzle K = 80 as a fire detection elements, and cross-fire with closed nozzle disposed in the protected area. As a quick response in case of fire sprinklers in advance movement detecting elements, wet start-up mode deluge valve diaphragm chamber pressure discharge water from the sprinklers start operation, Shandong fm certification Fire cocks, dry-start mode operation by the start of the discharge nozzle tube dry start Pressure within the network, thereby opening a dry start control valve diaphragm chamber discharge pressure of the water, the pre-action valve opens to water pipe network. ACC-1 dry-type valve Accelerator can automatically adjust the system in small, slow pressure changes. And when the system fast and stable pressure drop (eg sprinkler operation), the accelerator operation. After the accelerator operation, Shanghai fm certified fire valve, the pressurized gas transmission system side to the intermediate chamber DPV-1 Dry-type valve, the valve will remain closed differential pressure damage and the dry valve is open. QRS Electronic Accelerator has the following characteristics: * dry pipe valves in four seconds or less action - depending on different combinations of pressure pipe network, pipe network volume, nozzle flow coefficient K values. * Built-in low pressure and high pressure alarm monitoring devices. * When tape backup battery, in order to ensure reliable operation of mains failure Guangzhou fm certified fire valve, a mechanical and electrical Anyuan, fm certification by the Hubei Chong Fire cocks 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.