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With its triple eccentric design and metal-to-metal sealing, the series guarantees an ideal performance. 

The operating characteristics and the tightness of the valve are not influenced by high differences in temperatures and pressure fluctuations because of the triple eccentric geometry and the valves special features.
Maximum service life is achieved by eliminating any "rubbing" between the laminated seal around the total circumference during seating which enables a frictionless opening and closing. This guarantees full tightness and low operating torques.
All metal laminated seal ring, for high temperature and / or aggressive applications.