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Marine Cast Iron Dual Row Stop Valve Case GB/T2499-93

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China Marine Cast Iron Dual Row Stop Valve Case GB/T2499-93:

Marine Cast Iron Dual Row Stop Check Box Valve has R/RS, S/SS types. R/RS is with 2pcs of stop valves in one row, S/SS is with 3pcs of stop valves in one row.

Design Standard:GB/T2499-93

Test Standard:GB600

Flange as per GB569 or GB2501

Nominal Pressure (Mpa) Nominal Diameter(mm) Applicable Medium
1.0 40/50--150/200 sea water, fresh water
0.6 200/250--250/300

Main Parts & Material:

Body-Cast Iron(HT200)

Bonnet-Cast Iron (HT200)

Disc-Bronze (ZCuSn5Pb5Zn5)

Seat-Bronze(CuAl9Mn2)

Stem-Bronze(CuAl9Mn2)

Main Size List(mm):

PN
(MPa) 		DN
(mm) 		structure dimension connection dimension of flange
L L1 L2 H H1 Inlet DN1 bolt Outlet DN2 bolt
DN1 DN2 R S D1 D2 D3 b1 d1 n1 Th. D3 D4 D5 b2 d2 n2 Th.
1 40 50 380 540 110 160 236 160 125 93 74 16 15 6 M14 135 103 84 16 15 6 M14
50 65 420 600 120 180 257 165 135 103 84 16 15 6 M14 155 123 104 15 15 6 M14
65 80 440 620 130 180 270 180 155 123 104 15 15 6 M14 170 138 118 15 15 8 M14
80 100 480 680 140 200 300 202 170 138 118 15 15 8 M14 190 158 138 15 15 8 M14
100 125 570 800 170 230 309 235 190 158 138 15 15 8 M14 215 183 164 15 15 10 M14
125 150 650 900 200 250 355 275 215 183 164 15 15 10 M14 240 208 190 16 15 12 M14
150 200 740 1020 230 280 410 295 240 208 190 16 15 12 M14 295 264 247 16 15 12 M14
0.6 200 250 940 1320 280 380 510 370 295 264 247 16 15 12 M14 365 327 306 18 17 14 M16
250 300 1180 1640 360 460 625 440 365 327 306 18 17 14 M16 430 386 360 19 21 14 M20

PN
(MPa) 		DN
(mm) 		structure dimension connection dimension of flange
L L1 L2 H H1 Inlet DN1 bolt Outlet DN2 bolt
DN1 DN2 RS SS D D1 D2 b1 d1 n1 Th. D3 D4 D5 b2 d2 n2 Th.
1 40 50 410 590 115 180 236 160 150 110 788 18 18 4 M16 165 125 102 20 18 4 M16
50 65 445 640 125 195 258 165 165 125 102 20 18 4 M16 185 145 122 20 18 4 M16
65 80 505 720 145 215 277 180 185 145 122 20 18 4 M16 200 160 133 22 18 8 M16
80 100 540 770 155 230 304 202 200 160 133 22 18 8 M16 220 180 158 24 18 8 M16
100 125 610 870 175 260 325 235 220 180 158 24 18 8 M16 250 210 184 26 18 8 M16
125 150 695 990 200 295 366 275 250 210 184 26 18 8 M16 285 240 212 26 22 8 M20
150 200 800 1150 225 350 410 295 285 240 212 26 22 8 M20 340 295 268 28 22 8 M20
0.6 200 250 940 1330 275 390 543 370 320 280 258 22 18 8 M16 375 335 312 24 18 12 M16
250 300 1130 1610 325 480 623 325 375 335 312 24 18 12 M16 440 395 365 24 22 12 M20

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