GRACO 563173 - Valve Relief Indicator O-Ring 1500 PSI, 303 SST, 1/8 in NPSF w/O-Ring
Automatic Relief Indicator designed to pinpoint lube line blockage while allowing the lube system to continue supplying lubrication to points that are not blocked. Used primarily in secondary divider valves, this indicator uses excessive pressure created by line blockage to move a piston, enabling lubricant to escape through a vent. When the blockage is removed, the spring resets the piston, maintaining system operation.
Keep your machine running while lubrication gets to critical points. These performance indicators pinpoint lube line blockages but allow the lube system to continue to supply lubrication to points that are not blocked.
Additional Specifications
- Thread: 1/8 in NPSF w/O-Ring
- Max Working Pressure: 103 bar
- Material: 303 SST
- Connection Type: MHH, MSP and MXP
- Indicator Type: Automatic Relief
Specifications
| Application | On-Road Vehicles, Off-Road Equipment, Compressor Equipment |
| Compatible Material | Oil, Grease |
| Connection Size (in) | 0.125 |
| Includes | O-Ring |
| Indicator Type | Automatic Relief Indicators |
| Maximum Working Pressure (MPa) | 10 |
| Maximum Working Pressure (psi) | 1500 |
| Overall Length (in) | 1.37 |
| Thread Type | NPT |
| Type | Relief Valve |
Features
- Automatic relief indication
- O-Ring seal design
- 103 bar pressure rating
- Pinpoints lube line blockage while system continues operation
- Automatic pressure relief through piston-operated vent
- Spring-reset mechanism for automatic restoration
Applications
- Pressure monitoring
- Automatic relief indication
- Equipment protection
- Secondary divider valve systems
- Lubrication systems requiring blockage detection
- Systems where continued operation during partial blockage is critical
Compatible Equipment
- MJ series equipment
- MS series equipment
- MH series equipment
- MXP series equipment
- MHH divider valves
- MSP divider valves
Related Parts
Part of a series of automatic relief indicators with O-Ring seals available in different pressure ratings from 52 bar to 207 bar Requires separate pressure switch for audible or visual alarm. Recommended to select next higher pressure rating when replacing discontinued indicators.
Reference Manuals