SISTO Armaturen S.A.

We are your partner for diaphragm valves in sterile processes.

SISTO Armaturen S.A. is an associated company of the globally operating KSB Group and the Luxembourg SNCI and is specialised in the development and manufacture of diaphragm valves.

Our products

Well-designed products

Our stainless steel valves are used in plants where maximum sterility is required – for example in the pharmaceutical or food industry.

SISTO diaphragm valves are characterised by a unique sealing system that ensures operational reliability and maximises the service life of diaphragms.

In addition, our modular system allows individual solutions even with short planning lead times.

Get to know us

Get to know us

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SISTO diaphragm valves

SISTO diaphragm valves are used in sterile and aseptic applications in the manufacture of pharmaceutical products as well as in biotechnology.


SISTO Armaturen S.A.

Since 1988, we are an associate company of the worldwide operating KSB group and the Luxembourg SNCI. With around 200 employees, we develop and produce diaphragm valves for various areas of application at our location in Echternach (Luxembourg).


SISTO diaphragms

SISTO pursues the philosophy of supplying diaphragms that can be used as universally as possible. This means that we are able to cover a comprehensive spectrum of applications with just a few diaphragm types.


SISTO TechCenter

SISTO Armaturen S.A. invests more than three million euros in a tech centre where valve series and accessories for the pharmaceutical industry and other industries are newly developed and refined.


Sterile technology for the highest requirements

Sterile process engineering is an area which places the highest demands on the materials, the design and the manufacture of the components.

The application areas of sterile processes are diverse, with a focus on the pharmaceutical and biotechnology industry, where valves are used under sterile and aseptic conditions for the production of active medical ingredients and products such as vaccines, insulin, vitamins or enzymes.

SISTO has been able to set new standards in these applications through a high level of vertical integration, customised solutions and the development of a unique chambered sealing system.

Our Products

Custom-made solutions

Flexibility, customer-oriented solutions and product quality are at the heart of what we do. This is made possible by the high qualification of our employees and our vertically integrated production at the Echternach site.

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