RV‑Series Relay Valve
This valve is a direct‑acting proportional pressure‑reducing valve with hydraulic pilot control. Its output pressure is proportional to the pilot pressure. It is applied in systems with long brake pipelines or large‑volume brakes. Mounted close to the brakes, it effectively improves the response speed of the brake system.
Principle :
| Maximum Flow at Port P | 25 L/min, 60 L/min | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Maximum Pressure at Port P | 150 bar | ||||||||
| Pressure Ratio between Port PP and Port A | 2:1, 1:1 | ||||||||
| Return‑Line Back‑pressure | ≤ 1 bar | ||||||||
| 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 kg | ||||||||