400X flow control valve

Flow control valve (400X) for fire water is a life parallel to the water supply system, water supply for the deployment direction of the valve. Flow control valve (400X) from the main valve, flow control valves, needle valves, pilot valves, valve, micro-filter and pressure gauge hydraulic control over the system. The use of hydraulic automatic operation, control and regulation of the main valve opening, so that the flow through the main valve remain unchanged. Flow control valve (400X) the use of water self-control, no other devices and energy, maintenance is simple, flow control and stability. Flow control valve (400X) How it works: This series of valves are widely used in high-rise buildings, living quarters and other water supply systems and urban water supply project. When the valve from the inlet end of the water supply, water flows through the needle into the main valve control room, and through the pilot valve, the main valve control chamber outflow valve to the outlet, when the main valve is fully open or floating state. Flow regulator valve set an upper portion of the main valve, the main valve can set a certain opening. Adjusting the needle valve opening and regulating pilot valve spring pressure to the main valve opening is maintained at the set opening, and when the pressure changes in the pilot valve to automatically adjust to keep the flow constant.