A, D971X on the folder type electric soft-sealed butterfly valve Overview The middle of the soft-sealed butterfly valve, double eccentric flanged butterfly valve compact structure, 90 ° rotary switch easily, reliable Sealing, long service life, is widely used in water works, power plants , Steel mills, paper, chemicals, food and water supply and drainage systems, as used to regulate and cut off. Second, D971X on the characteristics of the folder-type electric soft-sealed butterfly valve 1, the valve with double eccentric structure, with the more off the tight sealing function, reliable sealing performance. 2, seal deputy material selection of stainless steel and nitrile oil rubber matching, long service life. 3, the rubber seal can be located on the valve body, but also can be located on the butterfly plate, suitable for different characteristics of the medium for the user to choose. 4, Gui Long butterfly plate frame structure, high strength, large flow area, small flow resistance. 5, the overall paint, can effectively prevent corrosion and as long as the replacement of sealing seat sealing material can be used in different media. 6, the valve has a two-way sealing function, the installation is not subject to the control of the medium flow, but also the impact of space position, can be installed in any direction. 7, the valve structure unique, flexible operation, labor-saving and convenient. Third, the main technical parameters of D971X clamp electric soft-sealed butterfly valve Nominal through DN (mm) 50 ~ 2000 50 ~ 1600 Nominal pharmacological PN (MPa) 0.6 1.0 1.6 Seal test (MPa) 0.66 1.1 1.76 Strength test (MPa) 0.9 1.5 2.4 Applicable temperature Nitrile rubber: -40 ℃ ~ 90 ℃ Fluorine rubber: -20 ℃ ~ 200 ℃ Applicable medium Water, air, natural gas, oil and weak corrosive fluid Leakage rate Complies with GB / T13927-92 Standard Driving mode Worm wheel Transmission, Electric, Pneumatic, Hydraulic Four, D971X Wafer-type electric soft-sealed butterfly valve Main parts Material Parts Name Material Body WCB, QT450-10, HT200, HT250 Disc WCB, QT450-10, HT200, HT250 Valve shaft 2Cr13 Ring NBR oil-resistant rubber packing Flexible graphite Five, D971X on the clip-type electric soft-sealed butterfly valve Executive standard manufacturing standards GB / T 122387-89 Flange standard GB9113-2000, GB17241.6-1998 Structural length standard GB12221-89 Test standard GB / T 13927-92
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