Hydraulic valveHCZFG Hydraulic valve

Mainly used in braking systems of high-horsepower tractors and other construction machinery;

Features a pressure-boosting ratio design, with output pressure proportional to pedal force for responsive braking and good inching performance;

Total valve stroke: 30 mm; master cylinder bore: 57 mm; boosting ratio: 6.15:1; P-port supply pressure: 25 bar;

In the released position, the P port is closed;

When the pedal is depressed, P-port pressure and pedal force actuate the piston to provide hydraulic boost. Increasing pedal force raises brake port pressure until pedal force balances hydraulic feedback force;

Releasing the pedal returns the valve to the released position.