Working principle and purpose of the product:

When the valve supplies water from the inlet end, water flows through the needle valve into the main valve control room, and the outlet pressure acts on the pilot valve through the conduit. When the outlet pressure is higher than the set value of the pilot valve spring, the pilot valve closes. The control room stops draining, and at this time, the pressure inside the main valve control room increases and the main valve is closed, and the outlet pressure no longer increases. When the outlet pressure of the valve drops to the set pressure of the pilot valve spring, the pilot valve opens and the control room drains downstream. Due to the drainage volume of the pilot valve system being greater than the inlet volume of the needle valve, the pressure in the main valve control room decreases. The import pressure causes the main valve to open. In a stable state, the control room has the same inlet and outlet water, the main valve opening remains unchanged, and the outlet pressure is stable.

The 200X pressure reducing valve is a valve used in parallel water supply systems for firefighting and domestic use, to adjust the direction of water supply. When a fire occurs, the fire department urgently needs a large amount of water and immediately cuts off domestic water to ensure sufficient fire water supply; When the water pressure decreases after the fire stops, the valve automatically opens and returns to a normally open state, restoring domestic water supply.

Product Structure Features:

The 200X pressure reducing and stabilizing valve consists of a main valve, a pilot valve, a needle valve, a ball valve, a micro filter, and a pressure gauge to form a hydraulic control connection system. When in use, it can automatically maintain a stable outlet pressure after setting the outlet pressure.

This product uses a pilot valve for self control, without the need for other devices or energy sources. It is easy to maintain, has high pressure control accuracy, is less affected by inlet pressure and flow rate, and has reliable pressure reduction and stabilization.