200X pressure reducing and stabilizing valve, pressure reducing and stabilizing valve, Shanghai Gaoqiao valve manufacturer

Pressure reducing and stabilizing valve
Structural features and uses
b
Pressure reducing and stabilizing valve
Composed of main valve, pilot valve, needle valve, ball valve, micro filter and pressure gauge Hydraulic control takeover system. When in use, when the outlet pressure is set, it can automatically maintain a stable outlet pressure.
This product uses a pilot valve to control itself, does not require other devices and energy, is easy to maintain, has high pressure control accuracy, is little affected by inlet pressure and flow, and is reliable in pressure reduction and pressure stabilization.
This series of valve products are widely used in water supply pipe network systems such as high-rise buildings and living areas, as well as urban water supply projects.

Working principle
b
When the valve supplies water from the inlet end, the water flows through the needle valve and enters the main valve control chamber, and the outlet pressure acts on the pilot valve through the conduit. When the outlet pressure is higher than the pilot valve spring setting, the pilot valve closes. The control room stops draining water. At this time, the pressure in the main valve control room increases and the main valve closes. The outlet pressure no longer increases.
When the valve outlet pressure drops to the pilot valve spring set pressure, the pilot valve opens and the control chamber drains water downstream. Since the drainage volume of the pilot valve system is greater than the water inlet volume of the needle valve, the pressure in the main valve control chamber drops. The inlet pressure causes the main valve to open. Under steady state, the water inlet and drainage of the control room are the same, the main valve opening remains unchanged, and the outlet pressure is stable.
The outlet pressure can be set by adjusting the pilot valve spring.