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Davey DD90-11NPT DynaDrive Constant Pressure Pump 1
Davey Pumps
Lead Time:  1-3 Days
Ships From: New Jersey

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Model: DD90-11NPT
Manufacturer: Davey Pumps

This is the Davey DD90-11NPT DynaDrive Constant Pressure Pump. Davey DynaDrive is our latest all-in-one home pressure system to solve water pressure issues. As a constant pressure pump, the variable speed drive maintains water pressure at a fixed point regardless of an increase or decrease in water demand for your household.

The number of taps being used in your home doesn't impact your water pressure or flow, with DynaDrive's constant pressure, you can keep pressure constant and steady. As taps are turned off, the drive adjusts automatically, keeping the pressure constant while saving energy.

With Davey DynaDrive you can expect:
  • Consistent pressure when another tap is turned on
  • Smooth and quiet flow
  • Reduction in water hammer
  • Reduced operating costs
  • Quiet pump operation
Davey DynaDrive is a horizontal multistage centrifugal pump with all hydraulic parts in stainless-steel - suitable for high water temperatures, corrosion and wear resistant, compact design and easy to install.
  • Stainless-steel impellers with high efficiency impeller profile and thick self-centring impeller neck rings for:
    • High efficiency
    • Reduced power consumption
    • Low noise output
  • Air purging valve and stage porting:
    • Easier priming
    • Less susceptible to air leaks
    • Improved dependability
  • Impellers mounted directly on extended motor shaft:
    • Maximise performance per stage
    • High efficiency
    • Long motor and pump life
    • Increased wear resistance
  • Pump casing assembly attached to motor bracket at 8 points with o-ring seal:
    • Complete stainless casing
    • Better sealing
    • Longer service life
  • Davey built, totally enclosed fan cooled (TFEC) electric motor:
    • Sealed and greased for life motor bearings
    • Oversized drive bearing
    • Longer life
    • Easy service
    • Economical and quiet running
Please refer to the documentation for all features and full technical specifications.

  • 24 GPM @ 43 PSI
  • 19 GPM @ 58 PSI
  • 9 GPM @ 73 PSI
  • 220-240 Volt, 50-60 Hz
  • Inlet: 1 1/4"
  • Outlet: 1"


Detailed Information
PDF  Davey Dynadrive Datasheet

Installation & Operation Manual
PDF  Davey Dynadrive Installation and Operating Instructions
Davey Pumps

Davey Warranty Details:

1. The guarantee period commences on the date of original purchase of the equipment. Evidence of this date of original purchase must be provided when claiming repairs under guarantee. It is recommended you retain all receipts in a safe place.

2. Davey products are warranted to the original user only to be free of defects in material and workmanship for a period of 36 months from date of installation, but no more than 36 months from date of manufacture. Davey's liability under this warranty shall be limited to repairing or replacing at Davey's option, without charge, FOB Davey's distribution center or authorized service agent. Davey will not be liable for any costs of removal, installation, transport or any other charges that may arise in connection with the warranty claim.

3. This guarantee is subject to due compliance by the original purchaser with all directions and conditions set out in the Installation and Operating Instructions. Failure to comply with these Instructions, damage or breakdown caused by fair wear and tear, negligence, misuse, incorrect installation, inappropriate chemicals or additives in the water, inadequate protection against freezing, rain or other adverse weather conditions, corrosive or abrasive water, lightning or high voltage spikes or through unauthorized persons attempting repairs are not covered under guarantee. The product must only be connected to the voltage shown on the nameplate.

4. Davey shall not be liable for any loss of profits or any consequential, indirect or special loss, damage or injury of any kind whatsoever arising directly or indirectly from the product or any defect, and the purchaser shall indemnify Davey against any claim by any other person whatsoever in respect of any such loss, damage or injury.

5. Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. The warranty gives you specific legal rights and you may also have other rights which vary from state to state.

6. This guarantee applies to all states and territories of United States of America and Canada only.

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