Sealless Technology Unlimited

HERMETIC-Pumpen GmbH is a leading developer and manufacturer of hermetically sealed pumps and pumping technologies. The specialist for canned motor pumps has earned a worldwide reputation for its safe and long-lasting pumps, which can be used for the most extreme applications and conveying hazardous media. HERMETIC pumps are suitable for fluid temperatures ranging from –160 °C up to +480 °C and system pressures up to 120 MPa. With power outputs from 1 kW to 690 kW, HERMETIC offers the largest capacity canned motor pumps on the market.

HERMETIC employs around 440 people at its headquarters in Germany and has subsidiaries in China and the USA. In conjunction with its worldwide service and contract partner network, HERMETIC offers reliable customer service over the entire life cycle of a plant.

Making of – an outstanding piece of pump technology


Press Release

Nicolaus Krämer is the new chairman of the VDMA Pumps + Systems 

Frankfurt/Gundelfingen, 11th of May 2023 – Nicolaus Krämer is the new chairman of the VDMA Pumps + Systems trade association. The members voted the Chief Executive and Chief Operating Officer of HERMETIC-Pumpen GmbH into office at the general meeting in Freiburg at the end of April.

Press release

CO2 refrigerant pump from HERMETIC part of CTES proof of concept 

In 2019, HERMETIC-Pumpen GmbH, a world leader in developing and manufacturing canned motor pumps, donated a hermetic high-pressure pump for the refrigerant CO2 as part of a PhD research project at the Norwegian University of Science and Technology (NTNU). The refrigerant pump was installed in an experimental pilot plant to investigate cold thermal energy storage (CTES) in conjunction with industrial refrigeration systems. The research project was conducted by SINTEF Energy Research in cooperation with the NTNU.

Application report

Canned motor pumps for server room cooling

Given the explosive growth in web hosting and cloud computing, data servers are playing an increasingly important role in business and society. The reliability of the servers in the sensitive areas of banks, insurance companies, authorities and large companies is particularly critical. This requires cooling systems of increasing size to dissipate the heat generated in the server rooms. The classic cooling medium air is increasingly being replaced by water and other natural refrigerants such as CO2 or NH3.

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Our portfolio of hermetically pump technologies
Clearly focused on use and application

Are you looking for a challenging position?

Welcome to HERMETIC!

Outside of our job vacancies, we also regularly have opportunities, with a wide range of tasks in the development and production of our cutting-edge technology.

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Learn more about our Products

Important standards and regulations concerning water pumps

Traction converters for the railway industry. Overview of CLC/TS 50537-3.

and Expert Tool

The reliable solution for chemical and petrochemical industries.

All you need to know about 
CO2 as a refrigerant

HERMETIC – in CO2 business 
for over 50 years.


Zero Axial and Radial Thrust – A Unique Quality Feature for Canned Motor Pumps.

PN 52 refrigerant pump
type CAMh

The solution for CO2 applications in the refrigeration industry.

Hermetically sealed 
submersible pumps

The safe and reliable solution for applications in chemical and petrochemical industries.

Good to know

NEW addresses for delivery and collection at HERMETIC