
Devices, valves and couplings for emission-free handling of quenching, insulating and industrial gases
DILO Armaturen und Anlagen GmbH
Babenhausen · UnterrothNew on Amplifa
About DILO
DILO Armaturen und Anlagen GmbH, headquartered in Babenhausen, is a full-service provider for the emission-free handling of quenching and insulating gases as well as other industrial gases. The product portfolio comprises complete systems for gas handling, gas analysis and detection, valves and couplings, as well as high-pressure products that are pressure-resistant up to 150 bar. The foundation is the patented, interlock-seal-free DILO sealing principle based on tongue and groove, which ensures permanent tightness even at high pressures, temperature fluctuations and vibrations. In addition to quenching and insulating gas technology, the company develops TÜV-certified screw fittings and service devices for handling hydrogen. The offering is complemented by custom-designed systems, gas processing DILO Certified Gas, Grid Solutions services for switchgear, as well as training and certifications in its own training center. The products are in use worldwide and serve industries such as power grids, industry, commerce and hydrogen technology.
- Site
- Babenhausen
- Processes
- Gas handling, Gas analysis & detection, Valves and couplings, H₂ products, Customer solutions / special systems, DILO Certified Gas (gas processing), Grid Solutions (assembly, decommissioning, disposal of switchgear), Training and certifications
- Materials
- Interlock-seal-free tongue-and-groove sealing principle, SF₆ quenching and insulating gas handling, Alternative gases / C4-FN, Hydrogen technology
- Certificates
- TÜV certification (H₂ screw fittings), Certified waste management specialist company
- Founded
- 1951
- Industries
- Power grids / Energy supply, Industry, Commerce, Hydrogen technology, Heavy-duty transport (H₂ drives)
- 01
Development
- 02
Production
- 03
Assembly
- 04
Distribution via a global partner network
- 05
Training & Certification
- 06
After Sales Services
- 07
Gas processing & Disposal
Products & Technologies
Interlock-seal-free tongue-and-groove sealing principle
Ensures permanent tightness under static and dynamic alternating loads caused by vacuum, pressure, high temperatures and vibrations.
SF₆ quenching and insulating gas handling
Complete systems for emission-free handling of SF₆ in medium- and high-voltage installations.
Alternative gases / C4-FN
Special solutions for alternative quenching and insulating gases as well as H₂ applications.
Hydrogen technology
TÜV-certified screw fittings and mobile service devices for the safe handling of hydrogen.
Locations

Babenhausen
DEHeadquarters with training center
- Materials
- SF₆, alternative gases, H₂
Unterroth
DELogistics center DILO Grid Solutions GmbH
Products




Inside the production


Industries
Additional services
Reference customers
Quality & Certification
DILO works with certified processes, H₂ screw fittings are TÜV-certified, and DILO Grid Solutions is certified as a certified waste management specialist company for the proper disposal of all materials.
| Evidence | Babenhausen |
|---|---|
| TÜV certification (H₂ screw fittings) | |
| Certified waste management specialist company |
History
- 1951
Founded with a patented screw fitting principle for high-pressure lines; the name DILO stands for "DIchtungsLOs" (seal-less)
- 2026
75th anniversary on July 3, 2026