I developed a soft seal center line of clip-off valve, double eccentric butterfly compact flange, 90 ° rotary switch easy, reliable sealing and long service life, is widely used in water plants, power plants, steel mills, paper, chemicals, diet, water supply and drainage systems, as a regulator and due to use. Product Features: This valve double eccentric structure, with more and more tightly sealed off function, a reliable sealing performance. 2, sealing materials made of stainless steel and nitrile rubber with matching, long service life. 3, rubber seals can be located on the body, it can be located in butterfly board, applicable to the different characteristics of the medium, for users to choose. 4, the disc using frame structure, high strength, flow area, flow resistance. 5, the overall paint, can effectively prevent corrosion and replace the seal as long as the seat material, can be used in different media. 6, the valve has a two-way sealing function, when you install from media flow control, are not affected by spatial location can be installed in any direction. 7, unique this valve structure, flexible operation, saving, easy main technical parameters: Nominal by DN (mm) 50 ~ 2000 50 ~ 1600 Nominal pharmacological PN (MPa) 0.6 1.0 1.6 Sealing test (MPa) 0.66 1.1 1.76 strength test ( MPa) 0.9 1.5 2.4 Temperature nitrile rubber: -40 ℃ ~ 90 ℃ Viton: -20 ℃ ~ 200 ℃ Suitable medium water, air, gas, oil and weak corrosive fluid leakage rate in line with GB / T13927-92 standard worm gear drive mode, electric, pneumatic, hydraulic main parts material Part Name Material Body WCB, QT450-10, HT200, HT250 disc WCB, QT450-10, HT200, HT250 2Cr13 valve shaft seals nitrile rubber with filler Flexible graphite perform standard manufacturing standard GB / T 122387-89 flange standard GB9113-2000, GB17241.6-1998 structural length standard GB12221-89 inspection standards GB / T 13927-92 D71X-6/10/16 Wafer soft seal Butterfly main external connection size Unit: mm DN LH HO AB 0.6MPa 1.0MPa 1.6MPa DO nd DO nd DO nd 50 43 63 235 270 110 110 4-14 125 4-18 125 4-18 65 46 70 250 270 110 130 4 -14 1454-181454-18 804,683,275,270,110 1504-181608-18 1608-1810052 105,316,270,110,170 4-18 1808-181808-18 12556115340 310 1102008-18210 8-182108-18150 56,137,376,310,110 2258-182408-22 2408-2220060 164,430,353,150,280 8-18 2958-222958-22 25,068,206,499,353 15033512-18350 12-2235512-26 30,078,230,570,380 15039512-22400 12-2241012-26