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Product Name：
Flange butterfly (D41 / 341X)
Product Introduction：

Standards and specifications

1, the product meets the GB12238-89 "universal valve flange and wafer butterfly" standard.
2, the test in line with GB / T13927- "universal valve pressure test."
3, the side flanges conform GB4216.4-4216.5-84 "gray cast iron flanges and gaskets" standard.

Technical Data

DN(mm) Nominal Diameter DN50-1200

PN (Mpa) Nominal pressure 1.0-1.6

℃ Working Temperature -23~+121

Suitable Mediums Fresh water,Sewage,Sea Water，Gas etc.

Dive method Choice of manual, electric, pneumatic.

Overall&Connection Dimensions of Flangel Butterfly Valve

Nominal diamter L 1.0Mpa 1.6Mpa

(MM) (inch) D D1 H1 H2 n-do D D1 n-do

50 2" 108 165 125 202 77 4-18 165 125 4-18

65 2.5" 112 185 145 213 93 4-18 185 145 4-18

80 3" 114 200 160 221 100 8-18 200 160 8-18

100 4" 127 220 180 234 113 8-18 220 180 8-18

125 5" 140 250 210 253 123 8-18 250 210 8-18

150 6" 140 285 240 269 193 8-22 285 240 8-22

200 8" 152 340 295 316 172 8-22 340 295 12-22

250 10" 165 395 350 358 202 12-22 405 355 12-26

300 12" 178 445 400 384 218 12-22 460 410 12-26

350 14" 190 505 450 439 253 16-22 520 470 16-26

400 16" 216 556 515 500 300 16-26 580 525 16-30

450 18" 222 615 656 528 328 20-26 640 585 20-30

500 20" 229 670 620 552 352 20-26 710 650 20-33

600 24" 267 780 725 669 397 20-30 840 770 20-36

700 28" 292 895 840 745 498 24-30 910 840 24-36

800 32" 318 1015 950 803 571 24-33 1025 950 24-39

900 36" 330 1115 1050 880 615 28-33

1000 40" 410 1230 1160 935 705 28-36

1200 48" 470 1455 1380 1067 827 32-39

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