Fantastic Four
design principle

Created for extremes

Thanks to the innovative design principle, even extreme temperatures from -270° C to +800° C are no problem.
Quadax® butterfly valves are ideal solutions for demanding customers with the highest demands on tightness – for extreme applications and temperature ranges.

100% tight

Thanks to their quadruple (four offset) design and state-of-the-art manufacturing technology, Quadax®– Kvalves meet even the highest tightness requirements 100%.

Made in Germany

We produce our butterfly valves from the highest quality materials on modern 5-axis machining centres. Entirely in Germany.


quadruple-eccentric quadax ®Butterfly Valve


  • frictionless
  • Higher KV values
  • Higher tightness (even in the most extreme conditions)

The four offset butterfly valve has an elliptical output cone. The cut at a specific angle results in a rounder and thus larger sealing seat.

Conventional triple offset butterfly valve


  • Wear due to friction
  • Less leaks (especially under extreme conditions)
  • maintenance Vulnerable/span>

The sealing seat has a conical shape. The tip of the cone is offset from the middle of the pipe to the outer edge. A round cone results in a tight, elliptical sealing seat in the housing.

Quadruple eccentric Quadax®
butterfly valve

3-way eccentric
butterfly valve