Quadax | müller co-ax ag

Butterfly Valves

High pressure,
extreme temperature,
sizes from 50 mm to 1000 mm and above

When dealing with the control, regulation and monitoring of very different media, a riliable partner is required. Our innovations and know-how make us this reliable partner, as, after all, we developed the original coaxial valves.

Since 1960, coaxial valves made by müller co-ax ag are used everywhere where media has to be guided in a controlled manner, where quality without compromises is required and where the highest demands are placed on systems.

With the new valve series Quadax®, the müller co-ax group is expanding the range of products of valves, especially with larger sizes. The unique design, a quadruple (four offset) design and a new manufacturing technology, Quadax® meets the highest tightness requirements, even under extreme temperature conditions, ranging from -270 °C to +800 °C.


  • LNG and LPG systems
  • Refining/Petrochemical
  • Power Generation
  • Technical Gases
  • Mining
  • Cryogenic
  • Pulp & Paper
  • Tank Farms
  • District Heating
  • Sea Water Applications
  • Others

Safety Integrity Level SIL 3 DIN EN 61508





müller quadax gmbh is part of the müller co-ax group

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