Gas compressor applications on offshore production platforms and FPSO (Floating Production Storage and Offloading) are tough on compressor valves. The gas composition from the well and associated processes often includes heavy hydrocarbons, H2S and water. Furthermore, the gas composition changes frequently during operations, making it difficult to optimize a valve design for all conditions. A major multinational oil company was battling frequent compressor valve failures on an offshore platform. Their Cooper Superior W-76 four-stage unit was compressing dirty natural gas and experiencing a maximum of six months run time for their plate valves. The compressor operates at 900 rpm. First stage suction pressure is 70 psig and the third stage discharge pressure is 599 psig. With the high costs of downtime and lost production offshore, the operator needed a valve capable of delivering longer service life.