GRACO 557829 - Moisture-Resistant Single Control Pressure Switch, 4700 PSI
Pressure switch assembly designed for all Modu-Flo reservoirs, providing reliable pressure monitoring and control for lubrication systems. Part of Trabon's comprehensive line of reservoir accessories for automated lubrication applications.
Turns off your pump or controller and activates venting once the lube system reaches the desired pressure level.
Additional Specifications
Specifications
| Adjustable | Adjustable |
| Application | On-Road Vehicles, Off-Road Equipment |
| Inlet Size (in) | 0.25 |
| Inlet Thread Type | NPT |
| Maximum Operating Pressure (psi) | 4700 |
| Model | Trabon |
| Power Connection Type | NEMA-4 |
| Type | Pressure Switch |
Features
- Electronic pressure sensing capability
- Automatic pump shut down and vent when pressure drops
- Includes five foot cable with flying leads
- Quick disconnect capability
- Compatible with all Modu-Flo reservoirs
- Reliable pressure monitoring
Applications
- Injector-based lubrication systems
- Automated pressure monitoring
- System protection and shutdown
- Automated lubrication systems
- Industrial machinery lubrication
- Modu-Flo reservoir systems
Compatible Equipment
- G3 pumps
- Injector-based systems
- All Modu-Flo reservoirs
- Trabon lubrication systems
- All sizes of compatible GRACO pumps per this product line
Related Parts
- 124595 - M12 Male Connector (required for installation)
- 563325 - High Pressure Blowout for 5 pint or 5 lb reservoirs
- 563326 - High Pressure Blowout for 12 and 20 pint or 12 and 20 lb reservoirs
- 563327 - High Pressure Blowout for all rectangular reservoirs
- 563326 - High pressure blowout switch (5 PT/LB)
- 563326 - High pressure blowout switch (6, 12 and 20 PT/LB)
- 563179 - Standard blowout (1450 PSI)
Kit Contents
- 557829 - Electronic Pressure Switch with five foot cable and flying leads
Requires purchase of 124595 M12 Male Connector for proper installation. Switch triggers G3 pump shutdown and vent operation when injectors dispense and pressure drops. Old part number was 542-210-120. Listed as universal pressure switch for all reservoir types in the Modu-Flo system. Listed as P1 option in pressure indicator section. Part of a broader pressure control system with various blowout switches and pressure indicators available.
Reference Manuals
