Main parts and materials
Part name Material Upper and lower valve body Cast iron,Cast steel,Stainless steel,Lining/F4 ,F46 Valve sea F4 /F46 With lever dish plate Fulling (WCB)F4/F46,Half lining/F4,F46 Liner silicon rubber Worm handle Qt400-15
PTFE-lined Butterfly Valve Standard
Technical specification Design standard GB12238 Structure length GB12221 Flange standard JB/T79-94 GB9113.1-26 Inspection and tes GB/T13927 Drive mode Worm,Manual,Electric,Pneumatic
Main form and connection size
NominalWeight(kg)
Mm inch Wafer PN1.0MPa 40 11/2 33 143 85 150 110 85 3 19 4-18 150 140 2.3 50 5 43 143 85 165 125 100 3 19 4-18 150 140 2.7 65 21/2 46 157 85 185 145 120 3 21 4-18 150 150 3.5 80 3 46 178 93 200 160 135 3 21 4-18 150 165 4.7 100 4 52 185 100 220 180 155 3 21 4-18 200 180 6.5 125 5 56 206 110 250 210 185 3 23 4-18 200 200 8 150 6 56 225 160 285 240 210 3 25 8-23 280 220 10 200 8 60 275 245 340 295 265 3 25 8-23 280 270 17 250 10 68 326 260 395 350 320 4 28 12-23 200 320 - 300 12 78 333 300 445 400 370 4 28 12-23 240 330 - 350 14 78 393 320 505 460 430 4 28 16-23 240 385 - 400 16 102 438 330 565 515 480 4 28 16-26 280 430 - 450 18 114 488 380 615 565 530 4 30