DILO Valves and couplings
Adapters and transition pieces
For maximum gas tightness. With every application.
DILO offers the widest valves and couplings product range in the world. Whether for medium voltage switchgear, high voltage switchgear or gas-insulated lines (GIL) our products always meet your requirements.
The DILO sealing principle prevents the loss of SF₆ gas and moisture from penetrating the SF6 gas system. DILO couplings will eliminate the loss of SF₆ gas by incorrect gas handling. Thanks to their reliability, quality and durability DILO couplings are the world‘s most widely used connecting system for SF₆ switchgear.
DILO seal principle
DILO is a seal principle without intermediate seal in the form of groove and tongue with little depth of immersion. This principle guarantees permanent tightness at high static and dynamic alternating stresses which might result from vacuum and pressure in connection with high temperatures and vibrations inside the tubing systems.
Sealing in accordance with the DILO principle is effected by direct contact of the sealing profiles of the groove and tongue parts. The different radii of curvature of groove and tongue are in a certain relation to each other.Thus, two ring-shaped sealing areas are produced which create high stability.
The additional braking surface prevents plastic deformations at the ring-shaped sealing areas.
DILO fittings are easy to assemble and require no maintenance. They can loosened and re-connected as often as desired. Thus, the re-use of the DILO seal is guaranteed. Due to the little depth of immersion of DILO groove and tongue the tubes can be immediately pulled out laterally after loosing the clamping nut.
DILO couplings allow a connection to be made by simply screwing the two coupling parts together. Before the metal to metal seal closes the pressure and vacuum tight coupling is sealed inside by means of an O-ring. When loosening the coupling parts again the same O-ring prevents gas loss whilst the self seal valves close.
With the aim of making a significant contribution to the global energy transition, we are actively working on the development of user-friendly technologies for emission-free industrial gas handling.
Valves and couplings
When long-lasting high gas tightness matters: Corrosion-resistant and maintenance-free, DILO valves and couplings offer uncompromising safety, even in long-term use, under high pressures and extreme temperature fluctuations.
DILO
High pressure products
The first choice not only for arc quenching and insulating gas applications, but wherever high pressures and high temperatures prevail.
We are ready to support your application.
World´s leading technology
- Self-closing coupling system
- Pressure- and vacuum tight, even during connection and disconnection
- Suitable for use up to PN 150 bar at temperatures ranging from -60 °C to +80 °C, depending on the medium
- Direct connection to DILO service carts without an adapter
- Vibration-resistant without additional securing
- Various materials available, including for outdoor switchgear
Contact
Your questions. Our solutions.
Whether you have initial questions or specific project ideas, we look forward to hearing from you. Send us a brief message and we will get back to you personally as soon as possible.
All you need for secure, gas‑tight valves and couplings
