VSR-F type and VS-F-type flow indicator VSR-F and VS-F type is used for wet sprinkler systems paddle type flow indicator, Shanghai FM authentication signal butterfly doors, through the United States UL listed, FM test certification, Shenyang FM authentication signal butterfly doors, England LPC certified for standard 10 # -40 # steel, specifications for 50mm to 200mm. The device can also be used for large systems split device switch. The VSR-F type water means containing two SPDT switch delay adjustment, the operating time is adjustable knob to adjust the delay for the positive and negative direction of rotation can be. When 37.8 l / min flow rate or flow exceeds this value the impact of this indicator pulp films, paddle to deflect the flow direction, delay starts timing, and so on arrival time delay setting, paddle still biased when one side can not go back down, water flow indicator output signal immediately. NOTE:. 1 VS-F type is without delay adjustment means flow indicator, to choose from. 2. This product is brand POTTER paute. ACC-1 dry-type valve Accelerator has a unique, built-in direct action anti-overflow device and float, FM authentication signal butterfly doors, through a combination of both, can block the water and impurities into the accelerator sensitive operating area. Sealing and locking anti-flooding devices depends directly on the ACC-1 Accelerator own motion, after the middle of the dry valve chamber without waiting to accumulate a certain pressure. Performance gear locking pin to make anti-overflow device at the drainage system can remain sealed. When the dry valve malfunction, Shandong FM authentication signal butterfly doors, such as compressor failure and when the air pressure in the system due to leaks slowly lowered, the float will seal the control chamber entrance. AV-1 type wet alarm check valve DN65 ~ DN200 ductile iron manhole covers and hand seat for the bronze, DN65 valve, stainless steel valve, other valves of ductile iron valve, all valves are made of EPDM for clapper facing. Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. is engaged in agents, sales of Tyco Fire products specialist FM authentication signal butterfly doors, creating Anyuan electromechanical, Shanghai FM authentication signal butterfly doors by the Hubei Chong Anyuan Electrical Equipment Co., Ltd. to provide . FM authentication signal butterfly doors, a mechanical and electrical Anyuan, Shanghai FM authentication signal butterfly doors Anyuan Hubei Chong Mechanical and Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) this year introduced a new upgrade, the above picture only for information, please call Tel picture on this page or to obtain the latest information, contact: Liu law.