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Grundfos CU 301 SmartFlo Controller

Grundfos SQE SmartFlo

CU 301 Controller

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Grundfos SQ Brochure

SmartFlo Features:

  • Advanced System Design
  • Rugged Design Systems
  • 1/3 - 1.5 Hp Integral Motors
  • Excellent Sand Handling Capabilities
  • High Motor and Pump Efficiencies
  • Built in Dry-Run Protection (thermal type-auto restart)
  • Soft-Start - prevents water hammering or electrical stress on start up
  • Overload / Locked Rotor Protection
  • Overvoltage / Undervoltage Protection
  • Over Temperature Protection
  • No Control Box Required
  • Multiple Frequency Input (50 - 60 Hz)
  • 230 Volt
  • Smaller water tank (2 gallons)
  • High Starting Torque (Even at Low Voltages)
  • Easy to Install
  • Serviceable Pump and Motor
  • Virtually maintenance free
  • Replaceable Motor Lead

SQ | SQE
Frequently Asked Questions

The Grundfos CU 301 is an intelligent constant pressure pump control. The CU 301 works with the pump, controlling its speed, allowing you to receive the water you need while suppling it at a constant pressure. The SQE SmartFlo range works with SQE pumps available in 4 sizes: .5hp, .75hp, 1hp, and 1.5hp. Add our constant pressure kit with the pump. Once installed the Grundfos SmartFlo system will constantly adapt pump performance to meet your water demands. Pump reliability is ensured as the controller continually monitors your system for problems, protecting from issues like low or high voltage and run-dry (stopping the pump from damage). This is the easiest & best constant pressure pump system available.

The SQE constant pressure system complete is one complete solution without the need of additional controls or wiring. The system is comprised of the CU 301 controller with the constant pressure kit (CPK). The system includes the CU 301 controller, 2 gallon X-Trol water tank, pressure transducer, manifold, pressure gauge, and relief valve. All of these features, complete in one kit, guarantee to save time and money!

Grundfos CU 301 Controller
CU301 96436754 $ 495 Order »
Kit Constant Pressure Complete Kit
(CU 301, Tank, Transducer, Manifold)
$ 775 Order »
Status Kit 96438895: Controller w/ Transducer $ 599 Order »

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The Grundfos SQE SmartFlo – The World's Best Constant Pressure System

Constant pressure systems increase the value of homes and buildings, as they ensure water is dispersed efficiently. This gives your family members and guests access to the water they need the moment they need it.

The Grundfos SQE SmartFlo is the world's best constant pressure system built with computer controls that protect water systems and prevent overloads from occurring. Those controls communicate with the pump to control speed, ensuring you get a steady stream of water every time you turn on the faucet. Grundfos pumps are outfitted with a variety of features, including:

Dry-run protection – The technology works to prevent your pumps from running without proper lubrication. Your water system won't be damaged if your well is depleted.

Voltage security – If an engine is powered by too few or too many volts, it won't run as optimally as designed. Grundfos pumps prevent undervoltage and overvoltage from occurring, ensuring engines run stronger and longer. This feature is particularly useful in rural areas where the supply of voltage is known to fluctuate considerably.

Soft start – The pumps also ensure that engines and water hammers don't run too hot. Property owners can enjoy a longer useful life of their water systems.

How Does It Work?

Once the CU 301 is installed, your Grundfos SmartFlo system will continuously adapt pump performance to meet selected pressure settings and water demands. This automation protects your water systems, working as a complete solution that will save you time and money.

It's Easy to Use

Intuitive by design, you'll have no problem configuring the CU 301 to your precise specifications. All you have to do is press arrows indicating whether you want more pressure or less pressure – the controller does everything else. Once the technology is installed, you'll quickly see an increase in performance and the corresponding cost reductions.

Under the Hood: SmartFlo Features

Featuring an advanced system design, the SmartFlo boasts superior sand handling capabilities, ensuring that only the purest water passes through your pipes. With high motor and pump efficiencies, you won't have to worry about the device being a drain on your energy bills either.

Easy to install, the SmartFlo is a serviceable pump and motor that's so self-sufficient that it's virtually maintenance-free. Once you install the device, you should notice considerable returns right away.

Best of all, the Grundfos SQE SmartFlo is a turnkey solution that doesn't require any additional controls or wiring. From the CU 301 controller that comes with the constant pressure kit to the 2-gallon X-Trol water tank, pressure transducer, manifold, pressure gauge and relief valve, this system has it all.

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