GRACO 557815 - Trabon Meter-Flo Electric Gear Pump, 84 cu in/min (1377 cc/min) @ 1725 rpm, NPT Ports, CCW
GRACO 557815 is a Trabon Meter-Flo electric gear pump that delivers 84 cu in/min (1377 cc/min) at 1725 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 helps assure 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 |
84 cu in/min (1377 cc/min) |
| Output @ 1140 rpm |
56 cu in/min (918 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 |
540-800-021 (NPT) / 540-800-820 (SAE) |
Repair Kits
Reference Manual