PDF09 Reverse‑Modulating Parking Brake Valve
This reverse‑modulating parking brake valve adopts the principle of a direct‑acting three‑way pressure‑reducing valve. Parking braking is achieved when used with spring‑applied / hydraulically‑released brakes. It integrates maximum pressure limitation for brake‑release pressure, delivering precise control and favorable mechanical operability. The lever features a self‑locking function at the parking position to prevent mis‑operation.
Principle :
| Max. Pressure at Port P | 20 MPa | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Max.Braking Pressure at Port A | 10 MPa | |||||||||
| Return‑line Back Pressure | ≤ 0.5 MPa | |||||||||
| Viscosity Range | 10‑380 mm²/s | |||||||||
| Temperature Range | ‑20 ℃ ~ 100 ℃ | |||||||||
| Oil Fluid Cleanliness | The solid‑particle contamination level of oil fluid and system shall not exceed GB/T 14039‑2002‑/19/16 or NAS 1638 Class 10. | |||||||||
| Approximate Weight | 3.2Kg | |||||||||