GRACO 557813 - Trabon Meter-Flo Electric Gear Pump, 30 cu in/min (492 cc/min) @ 1725 rpm, NPT Ports, CCW
GRACO 557813 is a Trabon Meter-Flo electric gear pump that delivers 30 cu in/min (492 cc/min) at 1725 rpm (or 18 cu in/min at 1140 rpm) through 1/2" NPT ports, rotating counter-clockwise (CCW) when facing the pump shaft. With its solid cast-iron housing, these rugged gear pumps are designed for dependable operation in high-demand industrial lubrication applications and are driven by a direct-coupled 1/2 HP motor.
Direct-drive and smooth-running, the Meter-Flo is ideal for applications requiring continuous delivery of hydraulic or lube oils to series-progressive metering systems.
- Continuous oil delivery for systems with up to 1,000 lubrication points
- Positive displacement assures constant delivery of the proper volume
- Match-ground, heat-treated steel gears enclosed in a rigid cast-iron housing assure dependability and long life
- Standard SAE 4-bolt mounting simplifies installation
- Adjustable internal pressure relief valve (factory-set at 1000 psi, adjustable 300–1500 psi) protects against overload conditions
- Special coupling allows easy replacement of older Meter-Flo pumps using the same mounting brackets
Specifications
| Type | Electric Gear Pump |
| Power Type | Electric |
| Rotation | CCW (facing shaft) |
| Application | In-Plant Machinery |
| Compatible Material | Hydraulic / Lube Oil |
| Compatible Metering Device | Series Progressive |
| Output @ 1725 rpm | 30 cu in/min (492 cc/min) |
| Output @ 1140 rpm | 18 cu in/min (295 cc/min) |
| Motor | 1/2 HP, direct-drive |
| Fluid Outlet Size | 1/2" (12.7 mm) |
| Fluid Outlet Thread Type | NPT |
| Maximum Working Pressure | 1500 psi (103 bar, 10.3 MPa) |
| Relief Valve Range | 300–1500 psi (21–104 bar), factory-set @ 1000 psi |
| Operating Temperature | 50°F to 150°F (10°C to 66°C) |
| Recommended Oil Viscosity | 350–2900 SUS (76–627 cSt) |
| Seal Material | Buna-N |
| Net Weight | 5 to 6-1/2 lbs (2.26 to 2.95 kg) |
| Old Part Number | 540-800-001 (NPT) / 540-800-800 (SAE equivalent) |
Repair Kits
- 557997 - Seal Kit (Buna-N)
- 557998 - Relief Valve Repair Kit
- 563303 - Special Coupling Assembly
Reference Manual