Unbalanced cage-type regulating valve is a single-seat sleeve regulating valve, without pressure balance hole at valve core. The body structure is compact with fluid channels in an S-shaped streamline. And it has a contra-vane to improve smooth fluid flow around the sleeve with low pressure drop loss, large flow, wide adjustable range and cavitation corrosion resistance.

The flow characteristic curve is of high precision. The closing of the regulating valve has good tightness, and the seat leakage level is equivalent to that of a single seat valve; regulating valve is equipped with multi-spring diaphragm actuator with compact structure and large output force. It can be widely used for occasions when low noise, low cavitation corrosion and stricter sealing are required.