Fire spinkler FM UL water flow switch vane type 450PSI DN50 to DN200
The vane type water flow switch use in wet pipe systems only. Water flow in the pipe deflects a vane, which produces a switched output usually after a specified delayMain
ZSJZ series water flow indicator is mainly composed of the saddle, blade rack, bottom plate, outer cover, Air delay device, micro-switch, junction box, etc.
Ninjing APC Industries, a leading manufacturer specializing in development and production of Fire Protection Valves, Industrial Valves, and Marine Valves in North China, was established in 1997, Together with the valves research center with more than 30 engineers, including 10 senior engineers and 2 American experts. APC industries possesses its own foundry, machine workshop, coating workshop, assembling workshop, and quality control system.