491-3933 1/4″ Air Compressor Line Relief Valve
Cat® Relief Valve (Air Compressor)
Description
The Cat relief valve group releases fluid when a safe threshold is reached to prevent excessive pressure buildup.
Features
- 15.88 Hex Size
- Thread Size: 1/4-18 NPTF
- 150 psi release setting pressure
- Maintains pressure
- Stable with low turbulence
Applications
Used to service air compressor line components in the power train of heavy equipment. Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Material | Alloy Copper |
|---|---|
| Hex Size | 15.9 mm (8-May in) |
| Length | 30 mm (1.18 in) |
| Thread Size | 1/4-18 NPTF in |
Compatible Equipment
- Compactors: CW-34
Additional information
| Machine Model | |
|---|---|
| Equipment Type | |
| Part Source | Genuine OEM |








