Franklin Electric’s constant pressure systems use variable frequency drive technology, changing the speed of the pump to meet the demand for water while keeping the pressure constant throughout the system.  The pressure sensor detects water system pressure, sending a signal to the controller (SubDrive or MonoDrive) to regulate the speed of the pump.
 
When water demand increases, pump speed increases.  When water demand decreases, pump speed decreases.  The pump only runs as much as is necessary to meet demand and maintain pressure.  This type of system does not require a large tank for storage, so smaller and lighter tanks can be used in a system that is often mounted on the wall, up off the floor, making more room for storage.  Click here for All-in-One Package

The SubDrive QuickPAK is an all-in-one package backed by a
five-year warranty and Franklin’s commitment to quality,
availability, service, innovation and value.
The SubDrive QuickPAK includes:
■ SubDrive pump
■ SubDrive motor
■ SubDrive variable frequency controller
■ Pressure sensor
Learn more about how we handle the
pressure at constantpressure.com.
Key Features:
SubDrive QuickPAK is Franklin’s most popular system solution package, designed to make
installing a constant pressure system even easier.
Built-in Diagnostics and Protection:
The SubDrive QuickPAK products include diagnostic features
and built-in protection from potentially harmful conditions.
■ Surge ■ Open circuit
■ Underload ■ Short circuit
■ Undervoltage ■ Overheated controller
■ Locked pump
Applications:
■ Residential Water Systems
- City-like water pressure
- Smaller tank saves space
■ Landscape Irrigation Systems
- Even distribution of water in zones
- Eliminates need for separate system
■ Water Treatment Systems
- More efficient back flushing
- Eliminates need for multiple pumps
■ Geothermal Systems
■ Motor, pump and drive in one package
■ Available in 7, 10, 25, 35, 60 and 90 gpm
■ Now featuring 15 and 20 gpm
■ Selection based on flow and total dynamic
head required
■ System-specific performance curve
■ NEMA 1 and NEMA 4 drive
enclosures available
■ 5-year warranty on QuickPAK components
■ Soft start feature prevents water hammer and
increases motor life
■ Works with small or large pressure tanks, even
works with an existing tank
■ Smart Reset® technology allows well recovery before
restarting the pump
■ Single-phase input power with three-phase
motor performance
■ Excellent radio frequency interference shielding