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Clarke CBM pumps

Clarke CBM240E 230v 7230670

  • Established 1975
  • Trusted by thousands of customers

Clarke CBM240E 230v 7230670

The Clarke CBM240E is a high-efficiency, multi-stage booster pump designed for various applications involving the transfer of clean, cold water.

101 l/min
Max. flow
48 m
Max. head
1,000 W
Power
230 V 1ph
Supply
ClarkeSingle-phase
More about this product

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Frequently Asked Questions

Quick answers to common questions about the Clarke CBM240E 230v 7230670. 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.