Cast iron wafer butterfly valve Application 1The design can be suitable for bs/ansi/din/uni/jis standand. 2For water, neutral liquids, oil and air etc.For water, neutral liquids, oil and air etc. 3Coating epoxy paintingCoating epoxy painting, 150 um. Main parts and materials NumberPart nameMaterial 1BodyDi, ci 2DiscBodyDi/ss/all bronzeCast iron or ductile ironCast iron or ductile iron 3PinStemSs416/ss304/ss316Stainless steelStainless steel 4SeatSeatNbr/epdm/ptfeNbr, epdm, viton, ptfeNbr, epdm, viton, ptfe 5StemO ringSs410NbrNbr 6BushingPtfe 7O-ringEpdm 8IndicatorCarbon steel 9LeverMalleable iron 10BoltCarbon steel Main dimensions SizeABCDD0LD14-¦µd Dn40120703441.8 12.6 26 105 4-19 Dn50140804252.9 12.6 30 120 4-19 Dn651508944.7 64.5 12.6 30 140 4-19 Dn801589545.278.8 12.6 30 150 4-19 Dn10017611452104 15.77 30 175 4-19 Dn12519012754.4123.3 18.92 30 210 4-23 Dn15021113955.8155.1 18.92 30 240 4-23 Dn20023517560.6202.5 22.1 40 290 4-23 Dn25026520365.6250.5 28.45 40 355 4-25 Dn30030524276.9301.5 31.6 40 400 4-25