The GRACO 557820 Meter-Flo® Electric Pump is a rugged, positive displacement gear pump designed for dependable, continuous delivery of hydraulic or lubrication oils. It features a solid cast-iron housing and is intended for use in high-demand industrial applications, particularly in-plant machinery requiring reliable oil delivery.

Key Features:

• Electric Piston Pump (Note: Some sources refer to it as a gear pump, but official GRACO documentation lists it as an electric piston pump for this model)
• Meter-Flo, 245 cu in/min (4015 cc/min) @ 1,725 rpm
• Cast-iron housing, match-ground heat-treated steel gears
• 245 cu in/min (4015 cc/min)
• Maximum fluid output pressure: 1,500 psi (103 bar); Maximum working pressure: 435 psi (30 bar, 3 MPa)
• 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
• Designed for continuous operation in high-demand applications
• Direct-drive, smoothly operating pump

Applications:
Direct-drive, continuous delivery of hydraulic or lubrication oils in industrial and in-plant machinery. Ideal for applications requiring reliable oil delivery to up to 1,000 lubrication points.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing systems.
• Ensure proper alignment and secure mounting using the standard SAE 4-bolt pattern
• Connect NPT ports as specified for fluid inlet and outlet
• Verify electrical specifications and motor compatibility before installation
• Regularly inspect for leaks and wear, and maintain as per manufacturer guidelines
• Monitor for leaks and unusual noise
• Check gear and housing condition periodically
• Use only compatible oils as specified
• Follow recommended maintenance intervals in the equipment manual