PTFE Full Lined Flanged Butterfly Valve D341F

main parts and materials

part name material

upper and  lower valve body cast iron/cast steel/stainless steel/lining f4/f46

valve seat f4/f46

with lever disc plate fulling (wcb)f4/f46,half lining(stainless steel)/f4/f46

liner silicone rubber

wormgear handle qt400-15 nodular cast iron, aluminum alloy

ptfe-lined butterfly valve standard

technical specification

design standard gb12238

structure length gb12221

flange standard jb/t79-94

gb9113.1-26

inspection and  test gb/t13927

drive mode wormgear, manual, electric, pneumatic

main external and connecting dimensions pn 10~16

nominal 

diameter

dn outline dimension connection size

l h2 h1 1.0mpa 1.6mpa

d d1 z-φd d d1 z-φd

50 108 143 85 160 125 4-φ18 160 125 4-φ18

65 112 157 93 180 145 4-φ18 180 145 4-φ18

80 114 178 100 195 160 4-φ18 195 160 8-φ18

100 127 185 110 215 180 8-φ18 215 180 8-φ18

125 140 206 120 245 210 8-φ18 245 210 8-φ18

150 140 225 160 280 240 8-φ23 280 240 8-φ23

200 152 275 245 335 295 8-φ23 335 295 12-φ23

250 165 326 260 390 350 12-φ23 405 355 12-φ26

300 178 333 300 440 400 12-φ23 460 410 12-φ26

350 190 393 320 500 460 16-φ23 520 470 16-φ26

400 216 438 330 560 515 16-φ26 580 525 16-φ30

450 222 488 380 615 565 20-φ26 640 585 20-φ30

500 229 540 390 670 620 20-φ26 715 650 20-φ33

600 267 615 450 780 725 24-φ30 840 770 20-φ36

700 292 660 480 895 840 24-φ30 910 840 24-φ36

800 318 720 580 1010 950 24-φ34 1020 950 24-φ39

900 330 785 625 1110 1050 28-φ34 1120 1050 28-φ39

1000 410 900 660 1220 1160 28-φ34 1255 1170 28-φ42

1200 470 1070 780 1450 1380 32-φ41 1485 1390 32-φ48