Description

Overview

The QR-1 Quick Release Valve 1/2in x 3/8in accelerates air exhaust from brake chambers, therefore brakes release faster and circuits reset quickly. It mounts close to the actuators and, as a result, shortens hose run exhaust paths on heavy trailers.

Features

• QR-1 pattern with 1/2 NPT supply and twin 3/8 NPT delivery ports
• 1 psi crack pressure for prompt response in standard systems
• Compact body with 1 1/2 inch mounting-hole spacing for easy replacement
• Designed for non-modulating, on/off pneumatic control of service chambers

Specifications and Materials

Part number: AB8315.
Model: QR-1 style quick release valve. Operation: speeds up exhaust from air chambers. Crack pressure: 1 psi. Ports: supply 1/2 NPT, delivery 3/8 NPT (2). Mounting-hole spacing: 1 1/2 inch.
For technical detail on QR-1 construction, operation and servicing, consult the Bendix quick release valves manufacturer service data.

Compatibility and Fitment

This cross-reference listing means this valve is a suitable replacement for the part numbers and applications shown. Some changes in air line plumbing may be required.
229860, RKN32011, 101905, 228691, 229860X, 286648, 288050, 1643824, 113619, 8V5017, 4030164, E9234285, 9234285, EBN229860N, 825734, 2530007928393, 20QE2183R, 90011444, 351249, 9351249, 36580, S8328, 401144, 51102, 032018, 27021103, 3915329, 8068989

Compliance and Safety

Always isolate the air supply before service. After installation, perform a soap-and-water leak test, then cycle the brakes and verify full pressure recovery. Finally, confirm each connected actuator exhausts freely and that the valve vents near the chambers as intended.

Trailer Applications

Use this QR-1 valve on semi-trailers, B-doubles and dollies where rapid brake release improves response. For example, you can mount it near a pair of service chambers to shorten the exhaust path. Likewise, it suits retrofits that replace worn QR-1 units while retaining existing NPT plumbing.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

We verify specifications against authoritative data and, consequently, help installers choose the right part first time. Moreover, our range focuses on proven components for Australian heavy trailers so fleets can minimise downtime and keep maintenance simple.
Browse Air Brake Parts at ICS Trailers