301.01.0026 Unloader Valve for DAF
301.01.0026
Summary
This unloader valve is designed for heavy commercial vehicle brake systems, specifically compatible with DAF. It features M22x1.5 and M12x1.5 port configurations and operates with a 9.8 BAR cut-out pressure to ensure reliable air pressure regulation. Equivalent to OE DAF 272493 and WABCO 9753030830.
| EAN Code | 8683457011113 |
|---|
Ready to Order
Compatible OEM Codes
-
WABCO
- 975 303 083 0
-
DAF
- 272493
Description
What does an unloader valve do?
This unloader valve plays a critical role in the pneumatic brake system of heavy commercial vehicles by regulating air pressure levels. It ensures that the air compressor operates efficiently by automatically releasing pressure once the system reaches the required threshold, maintaining stable operation throughout the braking cycle.Vehicle and system compatibility
Designed for use in DAF trucks, this component is compatible with WABCO systems to provide precise control. It utilizes high-strength components to withstand the rigors of heavy-duty commercial transport and provides reliable performance in demanding environments.Installation and technical specifications
The unit is specified with M22x1.5 (Port 1 and Port 21) and M12x1.5 (Port 4 and Port 23) port sizes, facilitating standard installation in pneumatic circuits. Technicians should verify the 9.8 BAR cut-out pressure setting during assembly to ensure correct system calibration.Maintenance guidance
Regular inspection of the valve ports and pressure settings is recommended to prevent system leaks or over-pressurization in the air brake circuit.OE cross-reference
301.01.0026 (Unloader Valve) is the equivalent of the DAF and WABCO OE numbers. This part directly replaces DAF OE number 272493. It also replaces WABCO OE number 9753030830.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 4 | M12x1,5 |
| Port 21 | M22x1,5 |
| Port 22 | - |
| Port 23 | M12x1,5 |
| Cut-Out Pressure | 9,8 BAR / 0,2 BAR |
| Inflation Valve | - |
| Recycle Valve | - |
Other OEMs
DAF
- 272493
WABCO
- 9753030830
- 975 303 083 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| DAF | |||
| WABCO |
FAQ
What is the function of this unloader valve?
It regulates air pressure within the brake system by automatically releasing air at a specific cut-out pressure to maintain stable operation.
Which vehicles is this part compatible with?
This specific unit is designed for use in DAF trucks and is compatible with WABCO systems.
What are the technical port specifications?
The valve features M22x1.5 ports (Port 1 and Port 21) and M12x1.5 ports (Port 4 and Port 23).
What is the operating pressure threshold?
The component operates with a cut-out pressure rating of 9.8 BAR / 0.2 BAR.
What are the OE reference numbers of this part?
301.01.0026 directly replaces DAF OE number 272493. It also replaces WABCO OE number 9753030830.