Klaus Union
Klaus Union is a globally recognized manufacturer specializing in sealless magnetic drive pump technology for critical and hazardous process applications. Headquartered in Germany, Klaus Union has built its reputation on leak-free pump designs, a modular engineering platform, and long-term reliability in demanding chemical, petrochemical, energy, and industrial services.
The company focuses on applications where process safety, containment, and operational reliability are essential, offering sealless solutions as an alternative to conventional shaft-sealed pumps.
Core Technologies & Capabilities
- Sealless magnetic drive centrifugal pumps (horizontal and vertical designs)
- API 685 heavy-duty sealless process pumps
- Sealless twin screw pumps (API 676) for challenging process duties
- Modular system concept enabling component standardization and lifecycle efficiency
Allego Global is the exclusive authorized representative of Klaus Union in Canada.
Typical Applications
Chemical and petrochemical processing, energy and refinery services, hazardous and environmentally sensitive fluids, high-temperature and demanding process duties.
Standards & Design Philosophy
DIN EN ISO, API (including API 685 and API 676), and ASME-aligned designs with emphasis on containment, materials expertise, and long-term reliability.
Magnetic drive technology
Klaus Union magnetic drive/magnetic coupling technology offers distinct long- and short-term advantages over conventional sealing system.
This technology does a way with a need for shaft to pass from liquid to non-liquid environments which means that glands and face seal can be dispensed with. The liquid is hermetically sealed in a leakproof, static isolation shell.
SEALLESS TECHNOLOGY
If pumps are used to handle dangerous products, it is essential to avoid even the smallest leakages into the environment in order to ensure the protection of both people and the atmosphere. The ideal solution for such a case is pumps with magnet drive. The first of its kind was introduced by Klaus Union in 1955.
Klaus Union Extensive Product Portfolio
Klaus Union product portfolio comprises pumps and valves for virtually all industrial applications. In addition to steel and stainless steel, Klaus Union products integrate numerous corrosion-proof alloys based on Ni-Cr-Fe, Ni-Cr-Fe-Mo, nickel and titanium.
Klaus Union pumps and valves offer optimal safety and reliability, as well as a long service life, and reduce costs thanks to their maintenance friendliness for the following application scenarios: chemical and petrochemical industry; refrigeration and heat engineering; liquid gas plants; electroplating; power plants; and plant construction.
- Centrifugal Pumps– with magnet Drive
- Centrifugal pumps– with shaft seal
- Twin Screw pumps– with magnet drive
- Twin screw pumps– with mechanical seal
- Technology
Flow Rate: up to 3.500 m³/h Flow Rate : up to 150 m³/h Flow Rate : max. 300 m³/h Flow Rate : up to 900 m³/h Flow Rate : up to 900 m³/h Flow Rate : max. 3.500 m³/h Flow Rate : max. 1.200 m³/h Flow Rate : max. 42 m³/h Transmittable Power: up to 1 MW
Single-Stage – DIN EN ISO
Delivery Head: up to 220 m L.C.
Temperature Range: -120 °C to +450 °C
Pressure Rating: up to PN 400
Click for more info.
Single-Stage – ASME
Delivery Head: up to 100 m L.C.
Temperature Range: -120 °C to +450 °C
Pressure Rating: up to PN 400
Click for more info.
Multi-Stage – DIN EN ISO/API
Delivery Head: max. 2.200 m L.C.
Temperature Range: -120 °C to +350 °C
Pressure Rating: max. PN 250
Click for more info.
Submerged Pumps – DIN EN ISO/API/ASME
Delivery Head: up to 200 m L.C.
Temperature Range: -40 °C up to +200 °C
Pressure Rating: up to PN 40
Click for more info.
Vertical Inline Pumps – DIN EN ISO/API/ASME
Delivery Head: up to 220 m L.C.
Temperature Range: -120 °C up to +350 °C
Pressure Rating: PN 40 at 120 °C
Click for more info.
Single-Stage – API
Delivery Head: max. 220 m L.C.
Temperature Range: -120 °C to +450 °C
Pressure Rating: max. PN 400
Click for more info.
High Temperature Applications
Delivery Head: max. 215 m L.C.
Temperature Range: -120 °C to +450 °C
Pressure Rating: max. PN 40
Click for more info.
Side Channel Pump – DIN EN ISO
Delivery Head: max. 470 m L.C.
Temperature Range: -120 °C to +250 °C
Pressure Rating: max. PN 400
Click for more info.
ENERGY EFFICIENT DESIGN
Temperature Range: -200 °C to +400 °C
Pressure Rating: max. PN63
Click for more info.
Flow Rate : max. 3.500 m³/h Flow Rate : max. 300 m³/h Flow Rate : max. 12.000 m³/h Flow Rate : up to 3.500 m³/h Flow Rate : max. 1.600 m³/h Flow Rate : max. 21.500 m³/h
Single-Stage – DIN EN ISO
Delivery Head:up to 220 m L.C.
Temperature Range: -120 °C up to +450 °C
Pressure Rating: max 400 PN
Click for more info.
Multi-Stage – DIN EN ISO / API & ISO
Delivery Head:max. 2.200 m L.C.
Temperature Range: -120 °C to +350 °C
Pressure Rating: max. 250 PN
Click for more info.
Propeller Pumps
Delivery Head:max. 12 m L.C.
Temperature Range: -120 °C to +250 °C
Pressure Rating: max. 100 PN
Click for more info.
Single-Stage – API
Delivery Head:up to 220 m L.C.
Temperature Range: -120 °C up to +450 °C
Pressure Rating: PN 40 @ 120 °C
Click for more info.
Submerged Pumps – DIN EN ISO/API & ISO
Delivery Head: max. 200 m L.C.
Temperature Range: -50 °C to +250 °C
Pressure Rating: max. PN 40
Click for more info.
Lower-Flange Propeller Pump
Delivery Head:max. 8,5 m L.C.
Temperature Range: -50 °C to +400 °C
Pressure Rating: max. 10 PN
Click for more info.
Flow Rate: max. 1.800 m³/h
Single Volute – API
Differential Pressure: max. 40 bar
Temperature Range: -120 °C to +350 °C
Pressure Rating: max 400 PN
Flow Rate: max. 1.800 m³/h Flow Rate: max. 5.000 m³/h
Single Volute – API
Differential Pressure: max. 40 bar
Temperature Range: -120 °C to +350 °C
Pressure Rating: max 400 PN
Double Volute – API
Differential Pressure: max. 100 bar
Temperature Range: -120 °C to +350 °C
Viscosity: max. 100.000 mPas