Metal seated ball valves for up to 420 bar and 450 °C


The patented design of the so-called ‘Dissolution’ ball valve offers optimized distribution of forces and loads in the ball valve, so that they only occur where they are actually needed. This means that the ball valve made by AS-Schneider can be actuated easily even under high pressures up to 420 bar.

The forces needed to maintain the tightness between ball seat and valve body are only directed onto the corresponding graphite seal rings (see figure).

The ball is only spring-loaded, which ensure a low, defined, minimum pressure off the balls on the ball seat. The operating torque can thus be significantly reduced, allowing the operator to operate the ball valve easily. At the same time, this construction offers maximum tightness and long service life.


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