Davey DynaDrive DD90-11NPT — High Capacity Constant Pressure Pump

Davey DynaDrive DD90-11NPT — High Capacity Constant Pressure Pump

The Davey DynaDrive DD90-11NPT is designed for high-demand water systems requiring large flows with stable pressure. With variable-speed drive intelligence and robust stainless-steel internals, it maintains consistent pressure even when multiple fixtures are used simultaneously. It’s ideal for bigger homes, small commercial applications, or properties with elevated plumbing needs. 

Key Features & Benefits

• High flow capability — up to ~24 GPM (per Davey’s product line listing) 
• Stainless-steel hydraulics for durability and corrosion resistance 
• Integrated variable-speed drive for smooth pressure control and energy savings 
• Advanced controller retains settings through power cycles 
• Quiet, efficient operation with minimized cycling
• Air purge, stage porting, and stainless casing support robust performance under varied conditions 

Specifications

The DD90-11NPT is the “go big” option in the DynaDrive lineup, built for systems with heavy simultaneous usage. It delivers high flow without compromising pressure, all wrapped in a durable, intelligent package. Ideal use for household and domestic water supply, irrigation and turf watering systems. Its compact footprint, stainless internals, and smart controller help deliver performance and longevity.

Inlet: 1-1/4" FNPT
Outlet: 1" FNPT
Max Flow Rate: 34 gpm @ 80psi
Max Set Pressure: 87 psi
Horse Power: 1.8
Voltage: 220-240V

Length: 18.25"
Height: 23.5"
Width: 10"