Canned motor pumps – compact and durable technology for your applications
Integrated technology for safe and compact solutions
Canned motor pumps consist of the motor and pump integrated into a closed unit. This eliminates external rotating components and couplings. It also removes the need for mechanical seals and their complex auxiliary and barrier fluid circuits – a clear advantage for safety-critical applications.
This design enables a particularly compact construction. Even in the development phase of the pump, the documentation and verification effort is significantly reduced compared to conventional technologies.

Technology with added value – for maximum safety and lasting efficiency
Low space requirements
Customized solutions – Our customers benefit from lower space requirements.
Reduced susceptibility to faults
Vibration-free and wear-free operation for longer maintenance intervals and consistent performance for decades.
Minimal maintenance
Fewer parts and robust design for lower documentation, spare parts, and lifecycle costs.
Absolute tightness
Gas-tight design without mechanical seals – with double safety housing for 100% tightness.
Wide range of applications
Motor sizes up to 690 kW and system pressures are customizable. Identical pressure ratings for motor and pump casing up to 120 MPa possible.
Motor temperature management
High temperature C-winding for 400 °C. Integrated motor temperature management. Instrumentation devices available.
HERMETIC ZART® Technologie
Our proven ZART principle stands for wear-free continuous operation. HERMETIC ZART® technology ensures fault-free and wear-free operation. Several different design details are combined to ensure contact-free and reliable pump operation.
- Long maintenance intervals
- Consistent performance over decades

Wide performance grid for challenging applications
HERMETIC canned motor pumps offer an exceptionally wide range of performance and are designed for pumping demanding media under extreme conditions. Our pumps cover:
- Fluid temperatures from –160 °C to +480 °C
- System pressures up to 1200 bar
- Power ranges from 1kW to 690 kW
This makes them ideal for applications in the chemical, petrochemical, nuclear, and refrigeration industries.
ETO pumps (Engineered-to-Order)
Our ETO pumps (Engineered-to-Order) enable tailor-made solutions for customer-specific requirements – from single units to series production. Thanks to innovative ceramic insulation, motor temperatures of up to 400 °C can be achieved – a unique selling point in Europe that is particularly suitable for future Gen4 reactors.
All pumps meet the electromagnetic compatibility requirements in accordance with the standard, and high to maximum balance grades for rotating parts ensure particularly low-vibration and low-noise operation.
With our modular system and in-house manufacturing expertise, we can handle nearly any conveying task – regardless of the medium, volume, or quantity.

Contact
Contact our team – we will be happy to advise you on our canned motor pumps for power plants. Together, we will find the right solution for your requirements.