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Franklin

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Constant Pressure (CP)

NEW! Constant Water Pressure!

There are now Constant Pressure (CP) controllers that can provide you with constant water pressure from your well water system for a wide range of applications.

Visit Franklin Electric's exciting new Homeowner-focused and Interactive
constant pressure web site:
http://www.constantpressure,com

Franklin Electric's CP FAQ page

Homeowner's Brochure (PDF file) about CP (Constant Pressure) SubDrives, their applications and their specifications.


Whether you are thinking about a new well or are already a customer with an existing well, ask us about CP and its many applications to learn if Constant Water Pressure might be for you!


Franklin Electric’s constant pressure controllers use state-of-the-art technology to provide constant water pressure through variable speed control of submersible water well pumps.

MonoDrive allows the conversion of a single-phase conventional pump system to a constant pressure system with the simple replacement of a 3-wire control box. It serves applications with performance requirements in the 1/2, 3/4, and 1 Hp range.

SubDrive75 is designed for use with a 3/4 Hp pump mounted to a 1 1/2 Hp Franklin Electric 3-phase motor. It provides 1 1/2 Hp performance from a 3/4 Hp pump, and is ideal for applications such as large homes, ground source heat pumps, and sprinkler systems.

SubDrive150 is designed for use in residential or light commercial applications with a 1 1/2 Hp pump mounted to a 3 Hp Franklin Electric 3-phase motor. It provides 3 Hp performance from a 1 1/2 Hp pump, and is ideal for applications such as large homes, ground source heat pumps, and sprinkler systems.

*Note: The information (wording and images) on this page has been quoted from the Franklin Electric web site and is subject to their copyright guidelines

Features—All Controllers

  • Provides Constant Water Pressure at a Wide Range of Settings (25 To 80 psi)
  • Works With a Standard Pump and Motor
  • Use Any Brand Pump
  • NEMA 1 Enclosure (Indoor)
  • Works With Small Pressure Tanks (2 Gal. Minimum Volume) or Larger Tanks Already in Place
  • Water Faucets can be Installed Between Wellhead and Controller
  • Excellent Radio Frequency Interference Shielding
  • Installation as Simple as a Control Box
  • Soft Start Means Less Motor Stress and Longer Motor Life
  • UL Recognized For USA and Canada
  • Built-in Diagnostics and Protection
    • Surge Protection
    • Underload
    • Undervoltage
    • Locked Pump
    • Open Circuit
    • Short Circuit
    • Overheated Controller
  • Smart Reset Technology Allows Well Recovery Before Restarting the Pump

Features—MonoDrive

  • Selectable Hp rating (½, ¾, and 1 Hp)
  • Easy installation – remove the 3-wire control box and install the MonoDrive
  • Can retrofit existing systems – no need to pull the pump

Features—SubDrive75 & SubDrive150

  • Works with a standard 3-phase Franklin Electric submersible motor
  • Three-phase performance with single-phase input
    • High starting torque
    • More efficient
    • Smooth running

—Special Options

  • NEMA 3R enclosure

    Available for MonoDrive and
    SubDrive75; allows outdoor installation
General Information -
 
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