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Jupiter controls offer offset disc butterfly valves size from 14”(350nb) to 64”(1600nb) with various choice of body, disc & seat materials. Double flanged eccentric disc butterfly valve also known by the name of high performance eccentric disc butterfly valves, have the shaft mounted slightly offset from the pipe centerline, and the shaft is mounted behind the sealing band of the seat. the seat is a narrow resilient band is clamped in the body and must be resilient. Elastomer (rubber) is resilient enough to seal, and the disc only wipes the seat for a few degrees of travel at seating. As the disc is offset from the shaft, there is a lot of metal in the flow stream in the wide-open position, and double-offset valves have somewhat less maximum capacity than flat-disc, non-offset valves. butterfly valve can be used in bi-directional pressure differential to prevent backflow in systems designed for unidirectional flow. Wafer bondedrenewable seat butterfly valve no requirement of any gasket to mount between two flanges. Jupiter controls valves are available with wider range of elastomer rubber seat to suit various industrial applications with various operations. Jupiter controls valve design is as per bs 5155 api 609 awwa c 504 and test standard bs en iso 12266-i (bs 6755-i) & api 598
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