The hydraulic control valve is a hydraulic pressure control valve. The hydraulic control valve is composed of a main valve and its attached conduit, pilot valve, needle valve, ball valve, pressure reducing valve, slow closing check valve, flow control valve, pressure relief valve, Water power electric control valve, water pump control valve, etc. Filters should be installed before the hydraulic control valve, and the requirements for sewage discharge should be facilitated.

The 400x flow control valve is a multi-function valve that uses a high-precision pilot-operated method to control flow. Applicable to the piping that needs to control the flow and pressure of the water distribution pipe, keep the predetermined flow rate unchanged, limit the excessive flow rate to a predetermined value, and properly lower the upstream high pressure, even if the pressure upstream of the main valve changes, it will not Affects the flow downstream of the main valve. The 400x flow control valve uses the principle of using a orifice plate or a purely mechanically small watershed area for the conventional throttle valve, and uses the associated pilot valve to minimize the loss of energy during the throttling process. In case of emergency, the 400x flow control valve can completely cut off the flow to avoid losses. High control sensitivity, safe and reliable, easy to debug and long service life.

400x flow control valve structure features and uses:

The 400x 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 take-over system. The hydraulic valve is automatically operated to control and adjust the opening of the main valve so that the flow through the main valve remains unchanged.

The 400x flow control valve utilizes hydraulic self-power control, requires no other equipment and energy, is easy to maintain, and has stable flow control. This series of 400x flow control valve products are widely used in high-rise buildings, living areas and other water supply pipe network systems and urban water supply projects.

400x flow control valve works:

When the valve feeds water from the inlet end, the water flows through the needle valve into the main valve control chamber, and passes through the pilot valve and the ball valve out of the main valve control chamber to the outlet, at which time the main valve is fully open or floating. Set the flow regulating valve on the upper part of the main valve to set a certain opening degree for the main valve. By adjusting the needle valve opening degree and adjusting the pilot valve spring pressure, the main valve opening degree can be maintained at the set opening degree, and the pilot valve is automatically adjusted when the pressure changes, keeping the flow rate constant.

Main technical parameters of 400x flow control valve

Nominal pressure (Mpa) Shell test pressure (MPa) Seal test pressure (MPa) Maximum inlet pressure (MPa) Export adjustable pressure (MPa) Applicable medium temperature (°C)

1.0 1.5 1.1 1.0 0.09-0.8 water 0-80

1.6 2.4 1.76 1.6 0.10-1.2

2.5 3.75 2.75 2.5 0.15-1.6

400x flow control valve main parts material

Part Name Part Material

Body valve cover WCB

Seat valve disc copper alloy

Seal O-ring nitrile rubber

Stem 2Cr13

Spring 50CrVA

Needle valve copper alloy

Ball valve copper alloy

Flow regulating valve can be stainless steel

Micro filter stainless steel

400x flow control valve engineering size: