This Hypro D813 diaphragm pump is a high-pressure, 3-diaphragm pump that is designed for the pumping and spraying of herbicides, pesticides, liquid fertilizers and other hard-to-handle liquids. You can also use this D813 Hypro pump as a hydrostatic test pump to test pipe and sewer pressures. The D813GRGI version of the D813 comes with a gearbox that is designed to connect the Hypro D813 pump to gas engines. The gearbox is best suited for engines with 8-18 HP with a 1" keyed shaft. The gearbox eliminates the use of belts and pulleys. The D813 pump has a low cost maintenance from its oil bath design and diaphragms that are dependable for lasting a long time. This diaphragm pump can be run dry and easily adapts to PTO, hydraulic or gasoline engines. Also, you will receive better performance if you increase the horsepower. For example, for a full pressure capability, an 18 HP engine with 1" keyed shaft is recommended, opposed to an 11 HP engine. Note: Some frictional wear is evident on machines with moving parts, so it is recommended to purchase a repair kit for this pump when you purchase this pump to have it handy when needed. Also, if you are in colder temperatures, run anti-freeze through the pump because freezing destroys pumps.

Max. 21.4 GPM; Max. 725 psi; Max. 550 RPM; Max. 140° F

Port sizes: 1 1/2" inlet ; 3/4" outlet

Housing: anodized aluminum

48 lb. weight

Self-priming operation