Bidirectional tightness under severe conditions

摘要

Using an innovative seat design concept, AMPO POYAM VALVES has managed to further improve the existing triple offset technology. This new seat concept, which combines ball and butterfly valve technology, helps to create a butterfly valve with a real bidirectional tightness in the most severe cryogenic conditions. Since their introduction to the market many years ago, butterfly valves have evolved continuously improving their leakage rate and reducing the required torque. Following this goal, the triple offset design was a huge improvement for butterfly valves operating in severe conditions, as the triple offset prevented excessive operation interference between seat and seal.