MXH – Horizontal multi-stage stainless steel pumps
Construction
One-piece horizontal multi-stage pumps made of AISI 304 chrome-nickel stainless steel, AISI 316L steel for MXHL 2, 4, 8. Compact and robust construction,with compact lantern bracket and motor with feet.
Single-piece barrel casing, with front suction port above pumps axis and radial delivery at top.
Version with frequency converter (on request)
Applications
For water supply systems.
For clean liquids, without abrasives, which are non-aggressive for stainless steel (with suitable seal materials, on request).
Universal pump, for domestic use, for civil and industrial applications, for garden use and irrigation.
Operating conditions
Liquid temperature: from -15°C to +110°C.
Ambient temperature up to 40° C.
Maximum permissible pressure in the pump casing: 10 bar, 8 bar for MXH 16.
Continuous duty (S3 60% for single-phase pump to 1,5-1,8 kW).
Motor
2-pole induction motor, 50 Hz (n ≈ 2900 rpm).
MXH: three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10%, from 3.7 to 7.5 kW;
MXHM single-phase single-phase 230 V ± 10%, with thermal protector.
Capacitor inside the terminal box. Insulation class F. Protection IP 54.
Motor suitable for operation with frequency converter from 1,1 kW.
IE2 efficiency class for single-phase motors up to 1,1 kW.
IE3 efficiency class for three-phase motors (IE2 up to 0,65 kW).
Constructed in accordance with EN 60034-1; EN 60034-30-1.
EN 60335-1, EN 60335-2-41.
Materials
| Components | MXH | MXHL (2,4,8) |
| Pump casing | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Stage casing | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Wear ring | PPS | PPS |
| Impeller | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Casing cover | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Spacer sleeve | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Pump shaft | Steel 1.4305 EN 10088 (AISI 303) for MXH 2, 4, 8, 16 | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Stainless Steel 1.4401 EN 10088 (AISI 316) for MXH 20, 32, 48 | – | |
| Plug | Chrome-nickel steel 1.4305 EN 10088 (AISI 303) | Stainless Steel 1.4404 EN 10088 (AISI 316L) |
| Mechanical seal with seat according to ISO 3069 |
Ceramic alumina/Carbon/EPDM | Ceramic alumina/Carbon/EPDM |
Resources and Downloads
| – MXH – Horizontal multi-stage | Download PDF |
| – General Catalogue of Calpeda 50Hz – 2025 | Download PDF |
| – MXH – visit Manufacturer product page | Click Visit |
