191-5439 Breaker Safety Valve
Cat® Breaker Relief Valve (180 kPa)
Description
Provides filtered venting for the hydraulic tank, so air can flow into and out of the tank as needed as the fluid level in the tank changes.
Features
- Filtration Level: 7 Micron
- Vacuum Relief Setting: 2 kPa (0.29 psi)
- Pressure Relief Setting: 180 kPa (26.1 psi)
- Thread size: No. 12 male thread STOR 1-1/16-12
- Housing Material: Polyamide
- Filter Material: Cellulose-Based Resin-Impregnated Paper
- Operating temperature range: -30° to 100° C (-22° to 212° F)
Applications
Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Diameter | 46 mm (1.811 in) |
|---|---|
| Material | Polyimide Plastic |
| Outside Diameter | 46 mm (1.81 in) |
| Length | 64 mm (2.50 in) |
| Thread Size | 1-1/16-12 in |
Compatible Equipment
- Compactors: CS-583D, CS-563E
- Dozers: D8, D7G2, D6R, D7R II, D6T, D6R II, D6T LGP, D6R XL, D6R III, D6G2 LGP, D6G2 XL, D7R, D8R, D7G, D7
- Excavators: 345B







