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Marine Cast Iron Single Arrangement Suction Stop Check Box Valve GB/T1855-93

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China Marine Cast Iron Single Arrangement Suction Stop Check Box Valve GB/T1855-93:

Marine Cast Iron Single Arrangement Suction Stop Check Box Valve has R/RS, S/SS types. R/RS is with duplex stop check valves, S/SS is with triple stop check valves.

Design Standard:GB/T1855-93

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 Material:

Body-Cast Iron(HT200)

Bonnet-Cast Iron (HT200)

Disc-Bronze

Seat-Bronze

Stem-Bronze / Stainless Steel

Main Size List(mm):

Type R, S:

PN
(MPa) 		DN
(mm) 		Structure Dimension δ connection dimension of flange
L1 L2 L3 L4 H B1 B2 d Inlet DN1 Outlet DN2 bolt
Th.
DN1 DN2 R
 S
 R
 S
 D D1 D2 b1 n1-d2 D3 D4 D5 b2 n2-d2
1.0 40 50 110 160 380 540 210 370 236 95 50 13 8 125 93 74 16 6-15 135 103 84 16 6-15 M14
50 65 120 180 420 600 230 410 256 100 50 15 8 135 103 84 16 6-15 155 123 104 15 6-15 M14
65 80 130 180 440 620 230 410 277 120 50 15 9 155 123 104 15 6-15 170 138 118 15 8-15 M14
80 100 140 200 480 680 260 460 304 130 60 17 9 170 138 118 15 8-15 190 158 138 15 8-15 M14
100 125 170 230 570 800 290 520 325 150 60 17 10 190 158 138 15 8-15 215 183 164 15 10-15 M14
125 150 200 250 650 900 310 5560 366 160 60 17 10 215 183 164 15 10-15 240 208 190 16 12-15 M14
150 200 230 280 740 1020 340 620 416 175 60 17 11 240 208 190 16 12-15 295 264 247 16 12-15 M14
0.6 200 250 280 380 940 1320 446 826 543 225 80 21 13 295 264 247 16 12-15 365 327 306 18 14-17 M14
250 300 400 460 1260 1720 544 1004 623 270 80 21 14 265 327 306 18 14-17 430 386 360 19 14-21 M16

Type RS,SS:

PN
(MPa) 		DN
(mm) 		Structure Dimension δ connection dimension of flange
L1 L2 L3 L4 H B1 B2 d Inlet DN1 Outlet DN2 bolt
Th.
DN1 DN2 RS SS RS SS D D1 D2 b1 n1-d2 D3 D4 D5 b2 n2-d2
1.0 40 50 115 180 410 590 230 410 236 105 50 13 8 125 110 88 18 4-18 165 125 102 20 4-18 M16
50 65 125 195 445 650 245 440 256 115 50 15 8 165 125 102 20 4-18 185 145 122 20 4-18 M16
65 80 145 215 505 720 265 480 277 135 50 15 9 185 145 122 20 4-18 200 160 133 22 8-18 M16
80 100 155 230 540 770 290 520 304 145 60 17 9 200 160 133 22 8-18 220 180 158 24 8-18 M16
100 125 175 270 620 890 330 600 325 165 60 17 10 220 180 158 24 8-18 250 210 184 26 8-18 M16
125 150 200 290 690 980 350 640 366 180 60 17 10 250 210 184 26 8-18 285 240 212 26 8-22 M16
150 200 225 325 775 1100 385 710 416 200 60 17 11 285 240 212 26 8-22 340 295 268 28 8-22 M20
0.6 200 250 275 380 930 1310 450 830 543 240 70 21 13 320 280 258 22 8-18 375 335 312 24 12-18 M16
250 300 325 435 1080 1515 505 940 623 280 70 21 14 375 335 312 24 12-18 440 395 365 24 12-22 M16

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