The CDS-John Blue NGP-4055-KF is a single piston, double-acting piston pump designed for precision liquid application. It features a variable stroke mechanism, allowing for a maximum flow rate of 10.2 gallons per minute (GPM) and a maximum pressure of 120 pounds per square inch (PSI). The pump operates at a maximum speed of 450 revolutions per minute (RPM) and is equipped with 1-inch female pipe thread (FPT) and 200 series flanges for both inlet and outlet connections. The standard construction includes Viton piston packings and Buna O-rings and rod packings, making it suitable for use with liquid fertilizers having a pH greater than 5 and standard herbicides compatible with these materials. The pump is designed for easy field servicing, with features such as outboard cylinder plunger packing that can be inspected or replaced without removing hoses, and a single valve cap providing easy access to check valves without hose removal. The NGP-4055-KF is equivalent to the LM-1255 series and is commonly used in agricultural applications requiring reliable liquid metering.
- Model: NGP-4055-KF
- Piston Type: Single Piston – Double Acting
- Stroke: Variable
- Max Flow Rate: 10.2 GPM
- Max Pressure: 120 PSI
- Max Speed: 450 RPM
- Inlet & Outlet Connections: 1" FPT & 200 Series Flanges
- Construction Materials: Cast Iron with Viton Piston Packings and Buna O-rings and Rod Packings
- Compatible Applications: Liquid fertilizers with pH > 5 and standard herbicides compatible with Viton and Buna
- Equivalent Model: LM-1255 Series
- Field Service Features: Outboard cylinder plunger packing for easy inspection/replacement without hose removal; Single valve cap for easy access to check valves without hose removal
- Common Applications: Agricultural liquid metering systems
