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metal seat butterfly valve

The emis metal-to-metal seat high performance butterfly valve are with metal seat for higher tensile strength, a 300 series stainless steel back-up ring in the seat cavity for axial seat support, and a disc that is case hardened by nitriding.
Metal seated butterfly valves for power generation, steel production, and mining applications series 74/75. 2 to 24. slotted iso 5211 top plate gives flexibility of direct mounting options. travel stop nut of 316 ss securely locks the shaft / disc assembly in place.
Zwick tri-con triple offset, metal seated, butterfly valves submitted on mon, 01/08/2018 tri-con valves incorporate a unique third offset with a 25-degree incline, eliminating the friction between the laminated seal ring and the body seat.
Designed for operation in high pressure/high temperature environments, the 302y high performance butterfly valve features several unique features which combine precision engineering with advanced design (eg self-aligning, high rigid thin-wall disc and “ball lock” seat retainer) to produce the ideal replacement for conventional metal seating gate and globe valves.

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