Calpeda MXHM
Calpeda MXHM 402E horizontal booster pump 230v
- Established 1975
- Trusted by thousands of customers
Calpeda MXHM 402E is a Calpeda single-phase horizontal multi-stage stainless steel pump, part number 62311021000. It delivers up to 133 l/min (8 m³/h) and a maximum head of 22.5 m (2.2 bar), driven by a 0.37 kW motor (single-phase 230 V 50 Hz).
The Calpeda MXHM is the single-phase version of the MXH: a one-piece horizontal multi-stage pump in AISI 304 stainless steel, with front suction above the pump axis, radial delivery at the top and a 230 V motor with thermal protector and capacitor in the terminal box.
More about this product
Calpeda MXHM 402E overview
Calpeda MXHM 402E is a Calpeda single-phase horizontal multi-stage stainless steel pump, part number 62311021000. It delivers up to 133 l/min (8 m³/h) and a maximum head of 22.5 m (2.2 bar), driven by a 0.37 kW motor (single-phase 230 V 50 Hz).
The Calpeda MXHM is the single-phase version of the MXH: a one-piece horizontal multi-stage pump in AISI 304 stainless steel, with front suction above the pump axis, radial delivery at the top and a 230 V motor with thermal protector and capacitor in the terminal box.
Specifications
| Model | Calpeda MXHM 402E |
|---|---|
| Calpeda part number | 62311021000 |
| Current Calpeda data sheet model | MXHM 402/A |
| Motor power (P2) | 0.37 kW (0.5 HP) |
| Max. power input (P1) | 0.57 kW |
| Supply | Single-phase 230 V 50 Hz |
| Rated current | 3 A at 230 V |
| Max. flow | 133 l/min (8 m³/h) at 6 m |
| Max. head | 22.5 m (2.2 bar) |
| Connections | G 1¼ suction × G 1 delivery |
| Liquid temperature | -15 °C to +110 °C |
| Ambient temperature | up to 40 °C |
| Max. pressure in the pump casing | 10 bar (8 bar for MXH 16) |
| Duty | Continuous (S3 60% for single-phase 1.5–1.8 kW) |
| Weight | 8.3 kg |
Performance
Total head at each flow, from the Calpeda MXH 50 Hz data sheet (approx. rated speed, clean cold water).
| Flow (l/min) | Flow (m³/h) | Head (m) | Pressure (bar) |
|---|---|---|---|
| 0 (shut-off) | 0 | 22.5 | 2.2 |
| 37.5 | 2.25 | 20 | 2 |
| 50 | 3 | 19 | 1.9 |
| 58.3 | 3.5 | 18.5 | 1.8 |
| 66.6 | 4 | 17.5 | 1.7 |
| 75 | 4.5 | 16 | 1.6 |
| 83.3 | 5 | 15 | 1.5 |
| 100 | 6 | 12.5 | 1.2 |
| 117 | 7 | 9.5 | 0.9 |
| 133 | 8 | 6 | 0.6 |
Construction and features
- One-piece horizontal multi-stage construction in chrome-nickel steel AISI 304
- Single-piece barrel casing: front suction above the pump axis, radial delivery at the top
- Compact lantern bracket and motor with feet
- Single-phase 230 V motor with thermal protector, capacitor in the terminal box, 2-pole, 50 Hz, approx. 2900 rpm, IP54
- IE2 efficiency class for single-phase motors up to 1.1 kW
Materials
| Component | Material |
|---|---|
| Pump casing, stage casings, impellers | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) |
| Wear ring | PPS |
| Pump shaft | Steel 1.4305 EN 10088 (AISI 303) |
| Mechanical seal | Ceramic alumina / carbon / EPDM, seat to ISO 3069 |
Applications
- Water supply and pressure boosting
- Clean liquids without abrasives that are not aggressive to stainless steel
- Domestic, civil and industrial use
- Garden use and irrigation
Frequently asked questions
Technical data: Calpeda MXH data sheet, 50 Hz. Performance tolerances to UNI EN ISO 9906:2012.
Operating conditions
Liquid temperature from – 15 °C to + 110 °C.
Ambient temperature up to 40 °C.
Maximum permissible pressure in the pump casing: 8 bar. Continuous duty
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data sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Calpeda MXHM 402E horizontal booster pump 230v. 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 Calpeda pumps can I explore?
Calpeda produces pumps for water supply, pressure boosting, drainage and circulation. Choose a model according to the required flow, head and liquid.
Are Calpeda pumps suitable for commercial installations?
Yes. Calpeda offers pump ranges for domestic, commercial and industrial duties; suitability depends on the individual model and duty point.
How do I choose a replacement Calpeda pump?
Check the existing pump model, supply voltage, connection dimensions, flow rate and required head before selecting a replacement.