The GRACO 557817 Meter-Flo® Electric Pump is a rugged, positive displacement gear pump designed for dependable operation in high-demand applications. It features a solid cast-iron housing and is intended for continuous delivery of hydraulic or lubrication oils within GRACO equipment, particularly in industrial and machinery environments.

Key Features:

• Electric Piston Pump
• Meter-Flo, 168 cu in/min (2753 cc/min) @ 1,725 rpm
• Cast-iron housing with match-ground, heat-treated steel gears
• 168 cu in/min (2753 cc/min) @ 1,725 rpm
• Maximum working pressure: 1,500 psi (10.3 MPa, 103 bar)
• Compatible with oil; compatible metering device: Series Progressive
• Positive displacement for constant delivery
• Rugged, long-life construction
• Standard SAE 4-bolt mounting for easy installation
• Direct-drive, smoothly operating pump
• Ideal for up to 1,000 lubrication points
• Reliable operation in continuous duty cycles

Applications:
Direct-drive, smoothly operating pumps ideal for applications requiring continuous delivery of hydraulic or lube oils in in-plant machinery, process oil and natural gas, and contractor/DIY environments.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance.
• Ensure proper alignment and secure mounting using the standard SAE 4-bolt pattern.
• Connect NPT ports according to system requirements.
• Verify compatibility with oil type and viscosity (SUS 300–3,000).
• Check operating temperature range (10–66°C / 50–150°F).
• Regularly inspect for leaks and wear, and maintain as per manufacturer guidelines.