43/4 hp flint & walling submersible pumps water well pumps and related accessories

a Denver Winpump Company



$ 1292.70


The VFD: 
Is ready to use
Starts and stops the pump as needed.
Reduces water hammer.
Allows you to set specific pressure parameters for your system.

Protects the pump from dry running and motor overloads. 

The pump can be used to pump water in city water boosting. The expansion tank is divided into two compartments: one for water and one for air. The water section collects and delivers water on demand and reduces motor starts in the event of small leaks in the system. The air section of the tank provides a cushion to prevent water hammer and helps maintain a constant output pressure. The pump is started and stopped by the VFD, which adjusts the motor speed according to demand. The VFD maintains a constant pressure according to the selected set point. As the water demand decreases, the device reduces the pump speed until it stops. The expansion tank minimizes the pump start-up and shutdown cycles. The factory default set point is 60 pounds per square inch (PSI). Tank pressure should be 70% of the set point pressure. 

For best operation, adjust the set-point and the tank pressure to the specific needs of your installation (See Table 2). NOTE: The pump is designed for use with clean water. Application Limits Temperature of pumped liquid: from +41°F To +122°F (+5°C to +50°C) in compatibility with the pump materials. Maximum ambient temperature: +104°F (+40°C). Max. operating pressure: 116 PSI. Use of this pump in situations requiring very low boost may result in cycling of the pump or fluctuations in water pressure. Table 1. Pos. Description Specification 1 Type of Pump Variable Speed Booster 2 For Installation Indoors Only 3 Power Supply 230V/50- 60Hz/1Ph 4 Circuit Breaker 15 Amp 5 Rated Current 5A 6 Maximum Liquid Temperature 122°F (50°C) 7 Maximum Head 116 PSI Transport and storage On delivery, check that the pump has not been damaged during transport; in case of damage, notify the distributor immediately. Store the pump in a clean, dry area protected from external contaminants and mechanical damage.

Intelliboost® Multi-Stage VFD Boosting Pump

Pentair's Intelliboost® is a TRUE variable speed booster with an LCD screen that gives you an easy to use, all-in-one solution for not only boosting, but delivering constant pressure throughout the system.

True constant pressure comes from true variable speed. Even when you use more water the unit holds pressure in a flat line. With a standard booster, more water usage means less pressure.


TRUE Variable Speed – The Intelliboost features a variable speed control that adjusts itself as demand changes to hold water pressure (up to 60psi) at the desired level.

All-In-One Unit – Includes pump, variable speed drive and tank all in one unit for quick and easy install.

Simple Startup – Unit is preset to boost 60PSI, allowing you to plumb it, wire it, power up and go!

Built-in Check Valve – Includes a check valve after the discharge to further protect your system.

LCD Screen – No blinking lights! The Intelliboost has an easy-to-read LCD screen that tells you the status of your unit in plain text.​

WARRANTY:  1 year warranty.

APPLICATION The INTELLIBOOST Variable Frequency Drive (VFD) System is a pre-assembled and pre-wired unit made up of a pump, expansion tank, fittings, and a pressure transducer. It is equiped with an electronic Variable Frequency Drive with inverter technology that maintains constant pressure in the system.The INTELLIBOOST pump is a horizontal multi-stage pump for pumping clean water only.

​Due to rapidly changing commodity market conditions, published pricing may change without notice. You will be contacted before shipment should that be the case.