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Marine Gate Valve is used to open and close the fuel oil piping, lubricating, water, steam piping at temperatures 120 degree centigrade or less.
Design Standard: JIS F7363-1996
Test Standard: JIS 7400-1996
Hydraulic Test Pressure:
DN400 and below: Body- 1.05Mpa, Seat-0.77Mpa (for not over DN400).
DN450~DN600: Body-0.75Mpa, Seat-0.55Mpa
Flange size as per JIS B2220 - 5K
Main Material:
Body: FC200/HT200 (Cast Iron)
Bonnet: FC200/HT200 (Cast Iron)
Disc: Bronze (BC6) or SCS2 (2Cr13)
Seat: Bronze (BC6) or SCS2 (2Cr13)
Stem: Brass (C3771BD) or SUS403
Gasket: non-asbestos
Packing Gland: Bronze (BC6)/Brass/Carbon Steel
Handwheel: FC200/HT200 (Cast Iron)
Main Size List(mm):
Size | L | Flange diam. (D) | Pitch (C) | No of Bolt Hole | h | t | H | D2 |
50 | 180 | 130 | 105 | 4 | 15 | 16 | 285 | 125 |
65 | 190 | 155 | 130 | 4 | 15 | 18 | 330 | 140 |
80 | 200 | 180 | 145 | 4 | 19 | 18 | 380 | 160 |
100 | 230 | 200 | 165 | 8 | 19 | 20 | 430 | 180 |
125 | 250 | 235 | 200 | 8 | 19 | 20 | 495 | 200 |
150 | 270 | 265 | 230 | 8 | 19 | 22 | 560 | 224 |
200 | 290 | 320 | 280 | 8 | 23 | 24 | 680 | 280 |
250 | 330 | 385 | 345 | 12 | 23 | 26 | 800 | 355 |
300 | 370 | 430 | 390 | 12 | 23 | 28 | 920 | 400 |
350 | 410 | 480 | 435 | 12 | 25 | 30 | 1000 | 450 |
400 | 470 | 540 | 495 | 16 | 25 | 30 | 1100 | 500 |
450 | 500 | 605 | 555 | 16 | 25 | 30 | 1420 | 560 |
