Marine center line type butterfly valve

Marine center line type butterfly valve

Place of Origin: Made In China
Delivery Time: 15-30 days
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Marine center line type butterfly valve – GB/T3036-94

Main data for joining (mm)

Nominal pressure (MPa) Nominal diameter (mm) ISO (GB2501-89) Structure & flange dimension Hole of nut
L D D1 L D D1 L D D1 L D D1 L D D1 L D D1 No. Thread No. Thread No. Thread
———————— ———————— —- —– —– —- —– —– —- —– —– —- —– —– —- —– —– —- —– —– —– ——– —– ——– —– ——–
50 45 165 125 43 40 155 120 130 105 43 135 103 4 M16 4 M16 4 M12 6 M14
65 46 185 145 46 40 175 140 155 130 46 155 123 4 M16 4 M16 4 M12 6 M14
80 46 200 160 46 40 185 150 180 145 46 170 138 8 M16 8 M16 8 M12 8 M14
100 52 220 180 52 40 210 175 200 165 52 190 158 8 M16 8 M16 8 M12 8 M14
125 56 250 210 56 40 250 210 235 200 56 215 183 8 M16 8 M20 8 M12 8 M14
150 56 285 240 56 40 280 240 265 230 56 240 208 8 M20 8 M20 8 M12 8 M14
200 60 340 295 60 40 330 290 320 280 60 310 273 8 M20 8 M20 8 M12 8 M14
250 68 395 350 68 40 350 355 385 345 68 380 336 12 M20 12 M20 12 M12 12 M14
300 78 445 400 78 40 445 400 430 390 78 435 391 12 M20 12 M20 12 M12 12 M14
350 78 505 460 78 40 490 445 480 435 78 485 441 16 M20 16 M20 16 M12 16 M14
400 102 565 515 102 110 560 510 540 495 102 545 496 16 M24 16 M24 16 M12 16 M14
450 114 615 565 114 130 620 565 605 555 114 600 551 20 M24 20 M24 20 M12 20 M14
500 127 670 620 127 140 675 620 655 605 127 650 601 20 M24 20 M24 20 M12 20 M14
600 154 780 725 154 160 795 730 770 715 20 M27 24 M30 20 M24

Capability

Parameter Value
Nominal Pressure 10 kgf/cm² (0.98 MPa)
Seal Pressure 15.4 kgf/cm² (1.51 MPa)
Intensity Pressure 21 kgf/cm² (2.06 MPa)

Medium

Seawater, freshwater, air and crude oil at temperature 70°C or less.

Notes

  1. For gasoline or other media at temperatures 70°C ~ 170°C, the seal ring must be chosen from FPM (fluororubber) material.

  2. Viton (NBR) is not to be used for LPG media.

Parts and Materials

Parts Name Material
Valve body Carbon steel, Ductile (nodular) cast iron, Grey cast iron, Bronze, Stainless steel, Aluminium alloy
Valve disc Bronze, Stainless steel
Valve stem Butadiene-acrylonitrile rubber (NBR), Fluorine-containing rubber (FPM), Ethylene-propylene rubber (EPDM), Stainless steel
Valve stem Stainless steel

Note: The description may be different with the product, please contact us for quotation.
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