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Swing Check Valve - Parts and Material List
Swing Check Valve - Parts and Material List

Swing Check Valve
150~2500LB, 2"~36"

We provide high quality Cast Iron Valve and Gate Valve with reasonable price.


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Parts No. Parts Name Material
WCB / Trim 1 WCB / Trim 8 WCB / Trim 5 CF8 / Trim 2 CF8M / Trim 10
1 Body A216 WCB A351 CF8 A351 CF8M
2 Seat Ring A105+13Cr A105+STL A105+STL A351 CF8 A351 CF8M
3 Disc A216 WCB+13Cr A216 WCB+13Cr A105+STL A351 CF8 A351 CF8M
4 Arm A216 WCB A351 CF8 A351 CF8M
5 Nut A194 2H A194 8 A194 8M
6 Arm Pin A182 F6a A351 CF8 A351 CF8M
7 Yoke A216 WCB A351 CF8 A351 CF8M
8 Bonnet Nut A194 2H    
9 Bonnet Bolt A193 B7 A182 F304 A182 F316
10 Bolt A193 B7 A351 CF8 A351 CF8
11 Gasket SS304 Sheet+Graphite SS304 Sheet+Graphite SS304 Sheet+Graphite
12 Bonnet A216 WCB A351 CF8 A351 CF8
13 Eye bolt A181
Note: The chart above only lists out some common composition of steel swing check valve parts. We may provide other different parts material composition according to the customer's request or the actual valve working condition.


ANSI 150 / 300 LB
NPS Class 150 LB Class 300 LB
L ∮d H Weight L ∮d H Weight
RF RTJ BW (Kgs) RF RTJ BW (Kgs)
2" 203 216 203 51 132 15 267 283 267 51 144 20
2-1/2" 216 229 216 64 147 20 292 308 292 64 169 35
3" 241 254 241 76 176 27 318 333 318 76 210 40
4" 292 305 292 102 198 45 356 371 356 102 260 61
5 330 343 330 127 255 58 400 416 400 127 295 80
6 356 368 356 152 320 69 445 460 445 152 326 130
8 495 508 495 203 380 131 533 549 533 203 380 190
10 622 635 622 254 440 219 622 638 622 254 440 296
12 699 711 699 305 480 321 711 727 711 305 520 450
14 787 800 787 337 530 380 838 854 838 337 540 640
16 864 876 864 387 580 560 864 879 864 387 588 850
18 978 991 978 438 618 630 978 994 978 438 670 1030
20 978 991 978 489 657 770 1016 1035 1016 489 720 1330
24 1295 1308 1295 591 760 960 1346 1368 1346 591 850 1950
28 1448 - 1448 684 920 1580 1499 1524 1499 684 1150 2600
30 1524 - 1524 735 980 1950 1594 1619 1594 735 1260 3200
32 1727 - 1727 779 1016 2800 1727 - 1727 779 1340 3330
36 1955 - 1955 874 1092 3200 2083 - 2083 874 1460 3520
Note: The dimensions of flange end, please download the technology data from our website.


ANSI 600 / 900 / 1500 /2500 LB
NPS Class 600 LB Class 900 LB
L ∮d H Weight L ∮d H Weight
RF RTJ BW (Kgs) RF RTJ BW (Kgs)
2" 292 295 292 51 170 28 368 371 368 51 200 48
2-1/2" 330 333 330 64 178 40 419 422 419 64 220 75
3" 356 359 356 76 246 68 381 384 381 76 280 95
4" 432 435 432 102 290 117 457 460 457 102 320 135
5 508 511 508 127 320 155 559 562 559 127 360 200
6 559 562 559 152 360 192 610 613 610 152 400 264
8 660 664 660 203 430 340 737 740 737 203 480 424
10 787 791 787 254 502 515 838 841 838 254 560 730
12 838 841 838 305 554 750 965 968 965 305 632 1070
14 889 892 889 337 595 890 1029 1038 1029 322 680 1180
16 991 994 991 387 680 1303 1130 1140 1130 373 780 1790
18 1092 1095 1092 438 778 1800 1219 1232 1219 423 880 2500
20 1194 1200 1194 489 970 2150 1321 1334 1321 471 1050 3080
24 1397 1407 1397 591 1100 3200 1549 1568 1549 522 1200 4600
NPS Class 1500 LB Class 2500 LB
L ∮d H Weight L ∮d H Weight
RF RTJ BW (Kgs) RF RTJ BW (Kgs)
2" 368 371 368 51 210 48 451 454 451 42 230 68
2-1/2" 419 422 419 64 240 75 508 514 508 52 260 100
3" 470 473 470 76 303 120 578 584 578 62 330 165
4" 546 549 546 102 340 180 673 683 673 87 370 260
5 673 676 673 127 380 294 794 807 794 96 410 440
6 705 711 705 144 430 385 914 927 914 131 460 580
8 832 841 832 192 500 634 1022 1038 1022 179 530 970
10 991 1000 991 239 590 1140 1270 1292 1270 223 620 1700
12 1130 1146 1130 287 660 1650 1422 1445 1422 265 690 2600
14 1257 1276 1257 315 710 2000 - - - - - -
16 1384 1407 1384 360 820 2700 - - - - - -
Note: The dimensions of flange end, please download the technology data from our website.
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