Body Cast iron Ductile iron Carbon steel Stainless steel Bronze ASTM A 126 CI. B ASTM A 536 Gr 65-45-12 ASTM A 126 WCB ASTM A 351 Gr CF8-CF8M ASTM B 62 Disc Ductile iron Stainless steel Aluminum bronze Coated ASTM A 536 Gr 65-45-12 ASTM A 351 Gr CF8-CF8M ASTM B 148 CI. C95500 EPDM-Viton-Buna etc Stem Stainless steel Stainless steel Stainless steel Stainless steel K-Monel ASTM A 276 304 ASTM A 276 410 ASTM A 276 316 17-4PH ASTM A 564 TYPE 630 ASTM B 164 Seat Elastomer EPDM NBR Viton Silicon Neoprene Working temperature - 15 ℃ ~ +110℃ - 10 ℃ ~ + 80℃ - 20 ℃ ~ +150℃ - 20 ℃ ~ +140℃ - 10 ℃ ~ + 90℃ Packing EPDM NBR Viton   Gland PP   Stem ØD Ød L H h1 h2 Stem Top flange to ISO 5211 O WT (kg) inch mm ØU G Type ØN ØP m ØS 1½" 40 86 40 33 205 58 124 10 8 F07 90 70 4 9 10 3.1 2" 50 102 50 43 227 66.5 130.5 14 10 F07 90 70 4 9 11 3.7 2½" 65 115 65 46 241 71 140 14 10 F07 90 70 4 9 11 4 3" 80 128 80 46 263 83 150 14 10 F07 90 70 4 9 11 4.4 4" 100 153 100 52 290 95 163 16 12 F07 90 70 4 9 11 5.9 5" 125 183 125 56 319 110 178 19 15 F07 90 70 4 9 12 8.9 6" 150 210 150 56 347 124 191 19 15 F07 90 70 4 9 12 9 8" 200 259 198 60 433 163 238 22 18 F07 90 70 4 9 13 11 10" 250 328 248 68 546 227 285 28 20 F10 125 102 4 12 15 20 12" 300 374 298 78 601 252 315 28 20 F10 125 102 4 12 15 31.5 14" 350 416 327 78 675 271 324 32 19.5 F10 125 102 4 12 20 43