Grundfos NB Pumps - 4 pole
Grundfos NB 32-125.1/121 A-F2-A-E-BQQE 98154140
Showing 181–207 of 207 products
Grundfos NB 200-400/392 AS- F1-A-E-BQQE 98976112 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-400/404 AS- F1-A-E-BQQE 98976113 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-450/367 AS- F1-A-E-BQQE 98976151 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-450/391 AS- F1-A-E-BQQE 98976152 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-450/415 AS- F1-A-E-BQQE 98976153 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-450/435 AS- F1-A-E-BQQE 98976154 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 200-450/455 AS- F1-A-E-BQQE 98976155 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-350/266 AS- F1-A-E-BQQE 98976181 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-350/294 AS- F1-A-E-BQQE 98788469 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-350/318 AS- F1-A-E-BQQE 98857218 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-350/362 AS- F1-A-E-BQQE 98857214 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-350/370 AS- F1-A-E-BQQE 98976182 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-400/ 281 AS- F1-A-E-BQQE 98976204 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 301 AS- F1-A-E-BQQE 98590841 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 329 AS- F1-A-E-BQQE 98976205 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 349 AS- F1-A-E-BQQE 98976206 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 365 AS- F1-A-E-BQQE 98976207 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 385 AS- F1-A-E-BQQE 98976208 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-400/ 405 AS- F1-A-E-BQQE 98938357 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-450/ 325 AS- F1-A-E-BQQE 98976237 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly…
Grundfos NB 250-450/341 AS- F1-A-E-BQQE 98976238 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-450/361 AS- F1-A-E-BQQE 98976239 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-450/381 AS- F1-A-E-BQQE 98976240 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-450/401 AS- F1-A-E-BQQE 98976241 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-450/445 AS- F1-A-E-BQQE 98976242 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-500/417 AS- F1-A-E-BQQE 98976259 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Grundfos NB 250-500/445 AS- F1-A-E-BQQE 98976260 Grundfos NB Single Stage End Suction, Non-self priming centrifugal pumps are used for pumping thin, clean or slightly contaminated…
Frequently Asked Questions
Quick answers to common questions about the Grundfos NB Pumps – 4 pole. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.
What does a water booster pump do?
A water booster pump raises water pressure to help supply taps, showers and other outlets when the existing system cannot meet demand.
Can a booster pump connect directly to the water mains?
Not every booster can. Direct connection depends on the product design and applicable water regulations; some systems require a break tank.
How do I size a water booster pump?
Assess simultaneous flow demand, required outlet pressure, available inlet conditions and the pressure losses in the pipework.
What types of Grundfos pumps are available?
Grundfos offers circulators, booster pumps, borehole pumps, drainage pumps and other solutions for domestic and commercial systems.
How do I identify the correct Grundfos pump model?
Use the model name and product number on the pump nameplate, then check the electrical, hydraulic and connection specifications.
Can a Grundfos pump improve household water pressure?
A suitably selected Grundfos booster system can improve water pressure or flow, subject to the property’s water supply and installation requirements.