Canned motor pumps outside potentially explosive atmospheres
Our canned motor pumps without explosion protection offer reliable and efficient solutions for numerous applications outside potentially explosive atmospheres. They are particularly impressive in refrigeration systems thanks to their hermetically sealed design, high operational reliability and long-term availability.
Manufacturers and operators of refrigeration systems require pumps that handle refrigerants safely, efficiently and reliably. With our hermetically sealed pumps, we meet these requirements and enable the controlled transport of a wide variety of refrigerants. With a HERMETIC refrigerant pump, you benefit from leak-free and low-maintenance pump technology, long service life, low operating costs, as well as a rapid supply of spare parts and reliable service.
Finding the right canned motor pump
Cannulated motor pumps for refrigeration applications
Standard application, single-stage
Flow rate [Q]
max. 85 m³/h
Head [H]
max. 90 m
Operating temperature [t]
–50 °C to +30 °C
Pressure rating
PN 25 / PN 40
Engine power
3 kW to 15.7 kW
Type CNF
Type / Design
Single-stage centrifugal pump with canned motor drive
The CNF series is designed for liquefied gases, boiling media and condensates. With an integrated auxiliary impeller and internal liquid recirculation, it is suitable for pumping liquids close to their vapour pressure. This makes it ideal for a wide variety of refrigerants and heat transfer fluids such as CO₂ and ammonia.
Pump design
With our expert tool, you can quickly find the right pump solution for your application. Based on your process data, you will receive an initial shortlist of suitable series and models.
Standard application, multi-stage
Flow rate [Q]
max. 45 m³/h
Head [H]
max. 190 m
Operating temperature [t]
–50 °C to +30 °C
Pressure rating
PN 25 / PN 40 / PN 52
Engine power
3 kW to 25 kW
Type CAM
Type / Design
Multi-stage centrifugal pump with canned motor drive
The CAM series is suitable for both standard applications and for pumping liquids at pressures close to their vapour pressure.
It has been specially developed for refrigeration applications and is characterised by very good NPSH values.
Type CAMR
Type / Design
Multistage centrifugal pump with canned motor drive
This pump is suitable both for pumping liquids at pressures close to their vapour pressure and for standard applications.
With a radial suction connection for suspended and space-saving installation.
Type CAMh
Type / Design
Multistage centrifugal pump with canned motor drive
This pump is suitable both for pumping liquids at pressures close to their vapour pressure and for standard applications
High-pressure version specifically designed for CO₂ applications and featuring a reinforced plain bearing for more demanding applications.
Shaft-sealed motor pumps for cooling inverters
Flow rate [Q]
max. 19.2 m³/h
Head [H]
max. 38 m
Operating temperature [t]
–40 °C to +80 °C
Pressure rating
PN 10
Engine power
1 kW to 3 kW
Type LC
Type / Design
Single-stage centrifugal pump with canned motor drive
This pump series has been specially developed for cooling systems in tractors and wind turbines. They comply with the most common standards for these applications and offer impressive compactness, low weight and a long service life.
Canned motor pumps for refrigeration applications
HERMETIC canned motor pumps are designed for a wide range of refrigeration applications. Whether NH₃, CO₂, water-glycol mixtures or synthetic oils – our pump solutions meet a wide variety of requirements in terms of safety, efficiency and availability.
For decades, they have been used in food refrigeration, in sports and leisure facilities, in refrigeration modules for the chemical industry, in CO₂ cooling for data centres, and in freeze-drying and absorption refrigeration systems.
Other applications without explosion protection (on request)
As well as refrigeration applications and the cooling of frequency converters, our canned motor pumps are also used in a range of other industrial applications. We would be happy to advise you on selecting the right solution for your specific
Get in touch with our team
Are you looking for the right pump for your process requirements, or do you need help with the design? Please contact our team of experts.