The CDS-John Blue NGP-7055-K is a single piston, double-acting piston pump designed for precision liquid application in agricultural settings. It offers a compact and cost-effective solution for variable rate piston pump drives, allowing users to supply their own SAE A 2-bolt motor or utilize a hydraulic motor/PWM manifold kit available from John Blue Company. The pump's design ensures quick and stable adjustment to application rates within milliseconds, maintaining consistent performance regardless of temperature fluctuations. Key features include a single valve cap for easy check valve access without removing hoses, an outboard cylinder for convenient plunger packing inspection or replacement, and main shaft seals with a dual wiper enclosed in a grease cavity to flush out contamination, extending the pump's service life. The NGP-7055-K is commonly used with liquid fertilizers that have a pH greater than 5 and standard herbicides compatible with Buna and Viton materials. Its application rates remain consistent despite temperature changes, ensuring reliable performance in various conditions.
