Details

The John Blue NGP-8059-DR is a double piston, double acting hydraulic clutch pump designed for agricultural applications requiring precise liquid fertilizer application. It features a variable stroke mechanism, allowing for a rated flow of 42 gallons per minute (GPM) at a rated pressure of 120 pounds per square inch (PSI). The pump operates at a rated speed of 450 revolutions per minute (RPM) and is equipped with 1.5-inch female pipe thread (FPT) inlet and outlet connections. The 'DR' suffix indicates the presence of independent dual inlet and outlet manifolds, enhancing operational flexibility. This model is part of the NGP-8050 series, which offers various clutch options, including rope control, electric control, and hydraulic control, with the NGP-8059-DR specifically featuring the hydraulic control clutch. The pump is constructed with standard piston pumps made of cast iron and utilizes Viton piston packings along with Buna O-rings and rod packings, making it suitable for liquid fertilizers with a pH greater than 5 and standard herbicides compatible with these materials. The NGP-8059-DR is also compatible with the 115671 Hydraulic Clutch Add-On kit, providing additional operational versatility. For applications requiring stainless steel components, the 'S' suffix denotes 316 stainless steel wet-end castings, commonly used on liquid fertilizers with a pH less than 5. The 'U' suffix indicates Viton wet-end O-rings and rod packing, suitable for handling aggressive chemicals. The 'K' suffix denotes a pump without a sprocket, and the 'R' suffix indicates an RC40 chain 18-tooth sprocket. These options allow for customization to meet specific application requirements.