301.07.0021 Volvo Quick Release Valve Equivalent

What does a quick release valve do?

This quick release valve serves as a critical component within the pneumatic brake system of heavy commercial vehicles. It is designed to rapidly vent compressed air from the brake chambers the instant the brake pedal is released, which helps eliminate release lag caused by long air lines. This functionality ensures faster braking response times and contributes to the longevity of brake linings and drums.

Vehicle and engine compatibility

The component is specifically designed for fitment in various Volvo models including the F10, F12, FL10, FL12, N10, N12, NL10, NL12, B10B, B10M, and B12. These units are also fitted to DAF, Irisbus, Iveco, and Renault Trucks. The valve is engineered to meet the rigorous demands of heavy-duty service environments.

Technical specifications and installation

Technical specifications include M22x1,5 VOSS ports (Port 1: M22x1,5 VOSS; Port 2: M22x1,5 VOSS; Port 3: M22x1,5 VOSS x2) with a maximum operating pressure of 12 BAR. When performing installation or maintenance, technicians should verify the port configuration and thread types against the existing pneumatic lines to ensure a secure seal.

Maintenance and troubleshooting

For optimal braking performance and safety, it is essential to check for leaks or delayed air release during routine inspections. Maintaining these valves ensures consistent pressure management throughout the braking circuit. Consult your authorized distributor.

OE cross-reference

301.07.0021 (Quick Release Valve) is the equivalent of the DAF, Irisbus, Iveco, Renault Trucks, Volvo and WABCO OE numbers. This part directly replaces DAF OE number 1518275. It also replaces Irisbus OE number 1072701, Iveco OE number 503135469, Renault Trucks OE numbers 5010251482, 5021170469, Volvo OE number 9518619 and WABCO OE number 9735000390.