The Calpeda CTM 61 is a compact peripheral (regenerative turbine) circulation pump commonly fitted inside marine air conditioning and small chiller loops. This is one of the few parts whose full specification we can confirm from the manufacturer datasheet.
Technical overview
- Compact peripheral circulation pump
- Single-phase 230 V with built-in thermal protection (CTM)
- Listed by Calpeda for cooling and air-conditioning equipment
- Cast-iron casing with brass impeller (bronze / stainless variants available)
Technical Specifications
| Brand | Calpeda (Italy) |
|---|---|
| Model | CTM 61 |
| Power | 0.33 kW (0.45 HP) |
| Supply | 220–240 V, 50 Hz, single-phase |
| Flow (Q) | 0.48–2.3 m³/h |
| Head (H max) | 41 m |
| Enclosure | IP54, Insulation Class F, ~2900 rpm |
| Variants | B-CT 61 (bronze), ICT 61 (stainless) |
Applications
Marine AC circulationSmall chiller / cooling loopsPressure boosting
Compatible Equipment
Marine air conditioning circulationSmall chilled-water loops
OEM / Cross References
CTM 61B-CT 61 (bronze)ICT 61 (stainless)
As marked / for identification only — confirm fitment before ordering.
Industries Served
Yachts & SuperyachtsCommercial VesselsCharter FleetsShipyards & Refit
Frequently Asked Questions
Should I use the standard, bronze or stainless CTM 61?
For raw seawater we recommend the bronze (B-CT 61) or stainless (ICT 61) variants, as the standard cast-iron casing is better suited to fresh/chilled-water loops. We can advise based on your installation.