The HCB cage double-seat control valve is a pressure-balanced control valve. The fluid channel in the valve is in the form of an S fluid line. It is also equipped with a guide wing to improve the smooth flow of the fluid around the sleeve. The advantage is that the pressure drop loss is small, the flow rate is large, and the Wide tuning range. The flow characteristic curve has high accuracy and good dynamic stability. Low noise, low cavitation corrosion, good dynamic stability of the regulating valve, low noise, anti-cavitation, suitable for controlling high pressure differential fluids of various temperatures. Equipped with LHA multi-spring diaphragm actuator or electric actuator, its structure is compact and the output force is large.