Davey DynaDrive DD90-11NPT

The Davey DynaDrive DD90-11NPT is built-tough constant pressure for demanding water systems. Integrated Variable Speed Drive technology adjusts motor speed to maintain steady pressure whether you're running the shower, dishwasher, and washing machine at once or watering the garden. All-stainless hydraulic components are built to resist corrosion and deliver years of reliable service. An integrated LCD panel makes it easy to monitor live system data and dial in your preferred pressure setting. An air purging valve simplifies priming and makes the system less susceptible to air leaks in your suction line.

For residential pressure boosting, agricultural systems, irrigation, and general water transfer. Indoor installation only. Two units can be linked for parallel operation with automatic lead-lag rotation (communication cable required).

Key Specs: 0.9 kW output, 220-240V, 1-1/4" NPT inlet / 1" NPT outlet, NSF/ANSI 61 certified

Features and Benefits

Durable Construction

• Stainless steel construction on all hydraulic parts for corrosion and wear resistance
• High-efficiency impeller profiles reduce power consumption and noise
• 8-point casing attachment with O-ring seal for better sealing

Long-Lasting Performance

• Totally enclosed fan-cooled motor
• Sealed and greased-for-life bearings
• Direct-mount impellers on motor shaft for longer motor and pump life
• Quiet and economical operation
• Easy to service motor

Consistent Pressure

• Steady pressure output during high demand
• Adjustable pressure in 5 psi increments (up to 87 psi max)

Easy Monitoring

• LCD display shows pressure, frequency, current, and temperature
• Warning indication for system faults

Protection

• Dry run protection with automatic restart
• Air purging valve for easier priming
• Less susceptible to air leaks in suction line

Specifications

Electrical

• Voltage: 220-240V
• Frequency: 50-60 Hz
• Input Power: 1.3 kW
• Running Current: 8.6 Amps

Performance

• Flow Rate @ 73 PSI: 9 GPM
• Flow Rate @ 58 PSI: 19 GPM
• Flow Rate @ 43 PSI: 24 GPM
• Max Pressure: 80 PSI
• Max Set Pressure: 87 PSI
• Max Casing Pressure: 145 PSI
• Default Operating Pressure: 60 PSI

Connections

• Inlet: 1-1/4" NPT Female
• Outlet: 1" NPT Male

Build

• Stages: 5
• Casing: 304 Stainless Steel
• Impellers: 304 Stainless Steel
• Pump Shaft: 316 Stainless Steel

Dimensions

• Length: 18-1/8"
• Width: 6-3/4"
• Height: 23-1/2"
• Weight: 46.3 lbs
  

Operating Conditions

• Ambient Temp: 32-122°F
• Max Humidity: 95%
• Fluid Type: Clean, clear, non-corrosive, non-flammable; no fibers; little sand/silica or abrasives (max concentration 40 g/m³)

Documents

Spec Sheet

Installation Manual

Video