DH77X butterfly valve Wafer butterfly valve used for pure lines and industry, environmental protection, water treatment, high-rise buildings to the drain line to prevent reverse flow of media use. The Wafer Check Valves, butterfly plate for two semicircles, and with spring forced reset, the sealing surface for the body surfacing wear-resistant materials or rubber liner, using a wide range of reliable sealing. Butterfly valve type test pressure (MPa) Applicable Applicable medium temperature ℃ housing seals H76X-10 1.5 1.1 -10 - + 120 fresh water, sea water, sewage, air H76X-16 2.4 1.76 -10 - + 120 Main Body parts and materials Part Name valve spring valve shaft seal rubber material HT200 QT450-10 2Cr13 1Cr18Ni9Ti main connection dimensions and weight nominal 1.0MPa 1.6MPa nominal diameter DN Dimensions Dimensions Weight Weight KG KG LD D2 / 2 D1 LD D2 / 2 D1 50 43 107 29 43 1.5 43 107 29 43 1.5 65 46 127 36 60 2.4 46 127 36 60 2.4 80 64 142 44 66 3.6 64 142 44 66 3.6 100 64 162 52 91 5.7 64 162 52 91 5.7 125 70 192 65 117 7.3 7.3 7019265117 1507621878145 7621878145 9.0 9.0 2,008,927,310,419,817 8,927,310,419,817,250,114 328 127 12723426114328 23426300114378 28442114378147 147 28442350127438 17333355127438 173 33355400140489 19838175140489 198 381 75,450,152,539,218 --107,152,539,218 --107,500,152,594,241 --111,152,594,241 --111,600,178,695,298 - 165 178695298--165 valve size and weight to the actual subject.