| Product Line | Brakes |
| Category Name | Air Brake Valves |
| Part Type | Quick Release Valve |
| Alternate Part Name | Inline Quick Release Valve |
| Model | QR-L |
| OEM Part Number | 800333 |
| Application Type | Semi-Trucks, Heavy Duty Trucks |
| Delivery Port Qty | 1 |
| Delivery Port Size | 1/2-14 NPT Female |
| Exhaust Port | Dust Shield |
| Supply Port Size | 1/2-14 NPT Male |
| Material | Die-cast Aluminum |
| Differential Pressure | 0 psi |
| Maximum Operating Temperature | 200 deg. F (93 deg. C) |
| Minimum Operating Temperature | -50 deg. F (-45 deg. C) |
| Zero Hysteresis | Yes |
| Net Weight | 0.68 lb. |
| Cross References | 170800333, 745-800333, 745800333, 800333, AV800333, BX800333, EBN800333N, LQV-5222, LQV5222, R955800333N |
| Intended Application | - Heavy trucks and tractor-trailers with air brakes. Trailers and semi-trailers with air brake systems. Buses and public transport vehicles that require efficient air release in the brake system.
- Designed to accelerate the release of air in pneumatic systems, optimizing the performance of the air brake system. Its main function is to quickly expel air pressure from the lines and devices to which it is connected, reducing the response time in the release of the brakes and improving the safety of the vehicle operation.
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