The YB43X proportional pressure reducing valve is a valve that uses a piston-type structure for pressure regulation. It achieves the function of reducing dynamic and static pressure at a fixed ratio by utilizing the pressure difference generated by the varying cross-sectional areas at both ends of the floating piston.

Working Principle

The valve operates by moving a floating piston under the influence of the inlet pressure, utilizing the difference in cross-sectional areas at the piston ends to create a pressure differential. This reduces the pressure after the valve to a set ratio (e.g., 2:1, 3:1). Regardless of the pressure changes before the valve, the pressure after the valve remains stable within the set ratio range, while also providing functions to reduce dynamic and static pressure.

Key Performance

Pressure Reduction Precision: Error not exceeding ±8%

‌Work Pressure: 0.2-2.5 MPa (varies by model)‌

‌Applicable Medium: Water, Gas, Temperature ≤ 90℃‌

‌Connection Type: Flange, Internal Thread‌

Structural Features

Valves bodies made of cast iron, stainless steel, or brass, offering excellent corrosion resistance.

Sealings are made of nitrile rubber,三元乙丙橡胶, and other materials to ensure airtightness.

Compact and lightweight, supports installation at any angle, easy maintenance.

Application Scenarios

Ideal for high-rise buildings, fire systems, industrial pipelines, and other applications requiring stable pressure reduction, it eliminates water hammer and protects the pipeline network.