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Marine Center-Pivoted Worm Manual Wafer Butterfly Valve

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Details

China Marine Center-Pivoted Worm Manual Wafer Butterfly Valve:

Marine Center Worm Manual Butterfly valve is operated by worm gear, used to adjust the flow rate, open and close the pipe system in the marine pipe system. The connection type also can be Lug type or Flange type.

Technical Specification:

Design Standard: GB/T3036-1994 Type C/CS
Test Standard: GB600
Applicable Medium: sea water, fresh water, air, crude/refined oil (t≤70℃)

Main Material:

1-Body: Cast Iron, Ductile Iron, Cast Steel, Bronze, Aluminum Alloy
2-Disc: WCB with galv, Stainless Steel, Bronze
3-Pin: Stainless Steel
4-Seat: NBR, EPDM,CR,FPM,VITION,PTFE
5-Stem: Stainless Steel

Main Size:

Nominal Pressure Norminal Diameter Structure& Flange Dimension Hole of Nut
ISO、JIS、GB ISO(GB2501-89) JIS GB(GB569-65) ISO JIS GB
Mpa mm H H1 L1 D0 L D D1 D2 L D D1 D2 L D D1 D2 n Th. n Th. n Th.
1 50 280 90 160 140 43 165 125 102 40 155 120 88 43 135 103 84 4 18 4 19 6 16
65 295 100 160 140 46 185 145 122 40 175 140 112 46 155 123 104 4 18 4 19 6 16
80 340 130 160 140 46 200 160 133 60 185 150 125 46 170 138 118 8 18 8 19 8 16
100 360 135 160 140 52 220 180 158 60 210 175 144 52 190 158 138 8 M16 8 M16 8 M14
125 395 155 160 140 56 250 210 184 60 250 210 178 56 215 183 164 8 M16 8 M20 10 M14
150 430 170 190 220 56 285 240 212 70 280 240 207 56 240 208 190 8 M20 8 M20 12 M14
200 480 190 190 220 60 340 295 268 80 330 290 260 60 310 273 250 8 M20 12 M20 12 M16
250 550 225 225 300 68 395 350 320 90 400 355 316 68 380 336 310 12 M20 12 M22 14 M20
300 630 260 225 300 78 445 400 370 90 445 400 361 78 435 391 364 12 M20 16 M22 16 M20
350 680 270 225 380 78 505 460 430 100 490 445 404 78 485 441 414 16 M20 16 M22 18 M20
400 795 315 265 380 102 565 515 482 110 560 510 462 102 545 496 466 16 M24 16 M24 18 M24
450 860 340 265 380 114 615 565 532 130 620 565 530 114 600 551 520 20 M24 20 M24 20 M24
500 980 375 265 380 126 670 620 585 140 675 620 585 126 650 601 572 20 M27 20 M24 20 M24

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