1400XFlow control valve overview

400XA flow control valve is a multifunctional valve that uses a high-precision pilot operated method to control flow. Suitable for pipelines that require flow and pressure control in water distribution, maintaining a constant predetermined flow rate, limiting excessive flow to a predetermined straight line, and appropriately reducing upstream high pressure. Even if the pressure upstream of the main valve changes, it will not affect the flow downstream of the main valve. This valve changes the principle of using orifice plates or purely mechanical methods to reduce the drainage area of conventional throttle valves, and utilizes relevant pilot valves to minimize the loss of capacity during the throttling process to the greatest extent possible. In case of emergency400XFlow control valves can cut off flow and avoid losses. High control flexibility, safety and reliability, easy debugging, and long service life.

II400XStructural characteristics and applications of flow control valves

400XThe flow control valve consists of a main valve, a flow regulating valve, a needle valve, a pilot valve, a ball valve, a micro filter, and a pressure gauge to form a hydraulic control connection system. Using hydraulic automatic operation to control and regulate the opening of the main valve, keeping the flow rate through the main valve constant.
This product utilizes hydraulic self control, does not require other devices or energy, is easy to maintain, and has stable flow control.
This series of valve products is widely used in water supply network systems such as high-rise buildings and living areas, as well as urban water supply projects.

III400XWorking principle of flow control valve

When the valve supplies water from the inlet end, water flows through the needle valve into the main valve control chamber, and flows out of the main valve control chamber to the outlet through the pilot valve and ball valve. At this time, the main valve is in a fully open or floating state. The flow control valve on the upper part of the main valve can be set to a certain opening degree. By adjusting the needle valve opening and the pressure of the pilot valve spring, the main valve opening can be kept at the set opening, and the pilot valve will automatically adjust when the pressure changes to maintain the same flow rate.

4400XMain technical parameters of flow control valve

5400XMain component materials of flow control valve

VI400XInstallation diagram of flow control valve

7400XMain dimensions of flow control valve