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Eugen Seitz - Develop, Produce and Distribute Premium Solenoid Valves

Our Swiss Orgin

Eugen Seitz AG is an independent, family-owned company with more than 50 years of history. Since 1958, we have been developing, producing and distributing premium solenoid valves all over the world for the technically demanding solenoid valve market from our head office in Wetzikon, Switzerland. The focus of our activities is concentrating on solutions for gaseous medias in the middle- and high pressure application – 16 to 1050 bar.


Specialist teams

Focussed on the Industry at hand

We offer solutions for selected industries tailored to the specific industry requirements:

  • PET stretch blow moulding
  • AFS alternative fuel systems
  • ES engine systems
  • NPP nuclear power plants
  • IND industry
  • GT gas turbines

Each team is made of specialists who understand you and your needs. Our direct sales provides you with direct access to our extensive engineering know how. As we concentrate on our areas of expertise, our products lead the way. We focus on the production of smaller and medium-sized series.

Leading solenoid valve technology

Innovative excellence
Our daily activities are driven by our desire to provide the leading solenoid valve technology for selected industries. Thanks to our activities in research and development, we have extensive expertise in electromagnetic development, actuator engineering, mechatronics, sealing technology, materials technology and explosion protection.

100% Swiss Engineering - 100% Swiss-made

Reliability is second nature to us
We take care of the entire process, from development through to production, under one roof. This allows us to systematically monitor our processes and ensure quality and adherence to deadlines.

Acting quickly and flexibly
We understand what is important to you and can identify specific requirements quickly. With an excellent knowledge of customer systems, we can provide added value to our clients. Over the course of the project, you have a skilled and solution-oriented point of contact who understands you.

We work purposefully by your side in the development of new products. Thanks to our clear structures, projects are carried out efficiently, methodically and with a streamlined organisation. We handle customer feedback in a straightforward manner and in a short period of time.

Excellent processing

After all, quality is our highest priority
Alongside excellent processing, meticulous inspections and precise testing procedures guarantee that our standards are met. This results in products with first-class quality levels.

Meticulous inspections

Our test benches are developed on-site and are monitored by us from commissioning all the way to revision. This is why we are able to guarantee the quality of our testing.

  • Fatigue tests up to 1,050 bar gas pressure
  • Pressure tests
  • Housing strengths are tested hydraulically up to 2,500 bar in a burst test
  • Leakage
  • Measurement of the exact leak rate in the range of 1 to 1,050 bar for helium
  • LabVIEW national instruments
  • Complex test procedures are reproducible and can be processed in a very short time
  • Test bench development


Eugen Seitz AG
Spitalstrasse 204
CH-8623 Wetzikon
Phone: +41 44 931 80 80
Email: info@seitz.ch