
Develops and manufactures electromechanical pressure switches, vacuum switches and electronic pressure sensors for switching points from 0.1 to 600 bar.
HERION & RAU Fluidtechnik GmbH
Nufringen (DE) · Development and ManufacturingNew on Amplifa
About HERION & RAU Fluidtechnik
HERION & RAU Fluidtechnik GmbH develops and manufactures electromechanical pressure switches, vacuum switches and electronic pressure sensors at its Nufringen site, which are sold under the bar-control brand. The portfolio covers switching points from 0.1 to 600 bar and is individually designed for each application — according to medium, pressure range, connection and ambient conditions. The products are designed for applications in which switching points must remain within the tolerance window even after thousands of cycles. The focus is on customer-specific configuration from a modular system or the new development of suitable variants. Recipients include medical technology, mechanical and plant engineering, and energy infrastructure equipped with power transformers, substations and fire suppression systems, as well as rail and commercial vehicles. Every variant undergoes a leak test. Customers are accompanied by a dedicated contact person from the first technical sketch through to the series solution. Internationally, the company supplies customers in South Korea, China, the United Kingdom and Australia.
- Site
- Nufringen
- Processes
- Development and manufacturing of electromechanical pressure switches, vacuum switches and, Development of custom pressure switches and pressure sensors, Manufacturing at the Nufringen site, Configuration according to application conditions (medium, pressure range, connection, environment), Leak testing
- Materials
- Electromechanical Pressure Switches, Vacuum Switches, Electronic Pressure Sensors
- Certificates
- Verified Leak-Tightness
- Founded
- 2002
- Industries
- Medical Technology (Hospitals, High-Pressure Autoclaves), Heavy-Duty (Waste Compaction Containers, Mortar Piston Pumps), Energy Infrastructure (Transformers, Capacitors, Substations), Refrigeration Systems, Mechanical and Plant Engineering, Commercial and Heavy Vehicles
- 01
Application analysis (medium, pressure range, connection, environment)
- 02
Configuration from modular system or new development
- 03
Manufacturing in Nufringen
- 04
Verified leak-tightness
- 05
Delivery
Product Types and Processes
Electromechanical Pressure Switches
Detection and switching of pressure ranges from 0.1 to 600 bar depending on the application.
Vacuum Switches
Monitoring of negative-pressure applications, e.g. ballast water and reverse osmosis systems.
Electronic Pressure Sensors
Electronic pressure measurement for industrial applications.
Locations
Nufringen
DEDevelopment and Manufacturing (Headquarters)
- Materials
- Pressure switches, vacuum switches, pressure sensors
Components



Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacturing of electromechanical pressure switches, vacuum switches andEngineering | – | – | – | – | – |
Additional services
Reference customers
Quality
All pressure switches undergo a leak test before delivery to ensure lasting process reliability.
| Evidence | Nufringen |
|---|---|
| Verified Leak-Tightness |
History
- 2002
Fluid technology since 2002; founding of HERION & RAU Fluidtechnik GmbH, or start of the bar-control brand