Full Port Swing Check Valves
SCV Valve manufactures a premium array of check valves. Our products are manufactured and tested in accordance with respective API, ASME, and ANSI standards.
SCV Valve is a global leader in valve manufacturing for power, paper and pulp, oil and gas, and petro-chemical industries. SCV check valves have serviced critical backflow prevention applications for more than 40 years. From pipelines to chemical processing, SCV offers a complete line of full port swing checks in a variety of materials making them appropriate for many environments, temperatures and pressures, that will accommodate your most stringent needs. Our check valve product line has positioned SCV as a go-to source for all of your backflow prevention needs. The Full Port Swing Checks can be installed in horizontal or vertical, upward flow pipelines.
SCV utilizes a replaceable seat design for simple field service and replacement. Seat materials are selected based on valve application, media, temperature, pressure and other conditions. Standard seat materials are ASTM A105 in carbon steel designs and A352 LCC in stainless steel designs.
DESIGN & MANUFACTURING STANDARDS | |
---|---|
Basic Design | API 6D & ANSI B16.34 |
Wall Thickness | API 6D |
Face-to-Face Dimension | ANSI/ASME B16.10 |
Flange End Dimension | ANSI/ASME B16.5 (2’ to 24”) MSS SP-44 (26”>) |
Butt-Weld End Dimension | ANSI/ASME B16.25 |
Inspection & Testing | API 6D |
Dimensional Data

Bill of Materials
No. | Part | WCC |
---|---|---|
1 | Body | A216 WCC |
2 | Bonnet | A105 |
3 | Seat | 410 + HF |
4 | Arm | A216 WCC |
5 | Disc | A216 WCC + 316 |
6 | Shaft | 316 SS |
7 | End Cap | A105 |
8 | Bearing | Nitronic 60 |
9 | End Bearing | Nitronic 60 |
10 | Spacer | A105 |
11 | Gasket | SS Graphite |
12 | Gasket | SS Graphite |
13 | Washer | 304 SS |
14 | Pin | 304 SS |
15 | O-Ring | VITON |
16 | O-Ring | VITON |
17 | O-Ring | VITON |
18 | O-Ring | VITON |
19 | Stud | A193 B7M |
20 | Stud | A193 B7M |
21 | Heavy Hex Nut | A194 2HM |
22 | Heavy Hex Nut | A194 2HM |
23 | Slotted Hex Nut | A194 2HM |
24 | Set Screw | 18-8SS |
25 | Key | 1045 |
26 | Graphoil Rope | Graphoil |
27 | Graphoil Rope | Graphoil |
28 | NPT Plug | 316 SS |
29 | Eye Bolt | Carbon Steel |

Full Port Swing Check Valves - API 6D
Sizes: 2" - 36"
Class: 150
SIZE | IN | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 28 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 750 | 900 | |
A - RF | IN | 8.0 | 9.5 | 9.5 | 11.5 | 14.0 | 19.5 | 24.5 | 27.5 | 31.0 | 34.0 | 38.5 | 38.5 | 51.0 | 57.0 | 60.0 | 77.0 |
MM | 203 | 241 | 241 | 292 | 356 | 495 | 622 | 699 | 787 | 864 | 978 | 978 | 1295 | 1448 | 1524 | 1956 | |
A - BW | IN | 8.0 | 9.5 | 9.5 | 11.5 | 14.0 | 19.5 | 24.5 | 27.5 | 31.0 | 34.0 | 38.5 | 38.5 | 51.0 | 57.0 | 60.0 | 77.0 |
MM | 203 | 241 | 241 | 292 | 356 | 495 | 622 | 699 | 787 | 864 | 978 | 978 | 1295 | 1448 | 1524 | 1956 | |
F | IN | 2.01 | / | 2.99 | 4.02 | 5.98 | 7.99 | 9.92 | 11.89 | 13.15 | 15.28 | 17.17 | 19.29 | 23.31 | / | / | / |
MM | 51 | / | 76 | 102 | 152 | 203 | 252 | 302 | 334 | 388 | 436 | 490 | 592 | / | / | / | |
H1 | IN | 1.93 | 4.02 | 2.56 | 3.19 | 4.21 | 5.59 | 6.77 | 7.56 | 8.9 | 9.76 | 10.83 | 12.13 | 14.37 | 21 | 22.5 | 26 |
MM | 49 | 102 | 65 | 81 | 107 | 142 | 172 | 192 | 226 | 248 | 275 | 308 | 365 | 533 | 571 | 600 | |
H2 | IN | 4.25 | 6.4 | 5.67 | 6.89 | 9.45 | 11.14 | 14.37 | 16.3 | 17.8 | 19.37 | 20.79 | 22.74 | 27.17 | 40.0 | 45.2 | 53.1 |
MM | 108 | 163 | 144 | 175 | 240 | 283 | 365 | 414 | 452 | 492 | 528 | 575 | 690 | 1016 | 1149 | 1349 | |
WGT (RF) |
LB | 35 | 49 | 66 | 97 | 172 | 260 | 520 | 758 | 930 | 1398 | 1799 | 2165 | 3925 | 4521 | 4644 | 7389 |
KG | 16 | 22 | 30 | 44 | 78 | 118 | 236 | 344 | 422 | 634 | 816 | 982 | 1780 | 2050 | 2108 | 3350 | |
WGT (BW) |
LB | 26 | 33 | 46 | 57 | 137 | 201 | 450 | 646 | 776 | 1195 | 1579 | 1879 | 3528 | 4300 | 4424 | 6946 |
KG | 12 | 15 | 21 | 26 | 62 | 91 | 204 | 293 | 352 | 542 | 716 | 852 | 1600 | 1950 | 2008 | 3150 |
Full Port Swing Check Valves - API 6D
Sizes: 2" - 36"
Class: 300
SIZE | IN | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 28 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 750 | 900 | |
A - RF | IN | 10.5 | 12.5 | 12.5 | 14.0 | 17.5 | 21.0 | 24.5 | 28.0 | 33.0 | 34.0 | 38.5 | 40.0 | 53.0 | 59.0 | 62.75 | 82.0 |
MM | 267 | 318 | 318 | 356 | 445 | 553 | 622 | 711 | 838 | 864 | 978 | 1016 | 1346 | 1499 | 1594 | 2083 | |
A - BW | IN | 10.5 | 12.5 | 12.5 | 14.0 | 17.5 | 21.0 | 24.5 | 28.0 | 33.0 | 34.0 | 38.5 | 40.0 | 53.0 | 59.0 | 62.75 | 82.0 |
MM | 267 | 318 | 318 | 356 | 445 | 553 | 622 | 711 | 838 | 864 | 978 | 1016 | 1346 | 1499 | 1594 | 2083 | |
F | IN | 2.01 | / | 2.99 | 4.02 | 5.98 | 7.99 | 9.92 | 11.89 | 13.15 | 15.28 | 17.17 | 19.29 | 23.31 | / | / | / |
MM | 51 | / | 76 | 102 | 152 | 203 | 252 | 302 | 334 | 388 | 436 | 490 | 592 | / | / | / | |
H1 | IN | 1.89 | 4.0 | 2.56 | 3.11 | 4.21 | 5.59 | 6.5 | 7.99 | 9.13 | 10.04 | 11.22 | 12.28 | 14.76 | 21 | 22.5 | 26 |
MM | 48 | 102 | 65 | 79 | 107 | 142 | 165 | 203 | 232 | 255 | 285 | 312 | 375 | 533 | 571 | 600 | |
H2 | IN | 4.41 | 7.1 | 5.83 | 7.09 | 9.88 | 12.28 | 14.76 | 16.73 | 18.23 | 19.88 | 21.3 | 23.03 | 27.52 | 45.2 | 50.0 | 60.6 |
MM | 112 | 180 | 148 | 180 | 251 | 312 | 375 | 425 | 463 | 505 | 541 | 585 | 699 | 1149 | 1270 | 1540 | |
WGT (RF) |
LB | 53 | 82 | 99 | 150 | 302 | 485 | 595 | 1092 | 1498 | 2095 | 2646 | 3304.5 | 4851 | 6174 | 7497 | 11025 |
KG | 24 | 37 | 45 | 68 | 137 | 220 | 270 | 495 | 680 | 950 | 1200 | 1500 | 2200 | 2800 | 3400 | 5000 | |
WGT (BW) |
LB | 46 | 77 | 77 | 112 | 242 | 401 | 463 | 1014 | 1157 | 1764 | 2139 | 2688 | 3925 | 5292 | 6505 | 9482 |
KG | 21 | 35 | 35 | 51 | 110 | 182 | 210 | 460 | 525 | 800 | 970 | 1220 | 1780 | 2400 | 2950 | 4300 |
Full Port Swing Check Valves - API 6D
Sizes: 2" - 30"
Class: 600
SIZE | NPS | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 28 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 750 | 900 | |
A - RF | IN | 11.5 | 14.0 | 14.0 | 17.0 | 22.0 | 26.0 | 31.0 | 33.0 | 35.0 | 39.0 | 43.0 | 47.0 | 55.0 | 63.0 | 65.0 | / |
MM | 292 | 356 | 356 | 432 | 559 | 660 | 787 | 838 | 889 | 991 | 1092 | 1194 | 1397 | 1600 | 1651 | / | |
A - RTJ | IN | 11.62 | 14.12 | 14.12 | 17.12 | 22.12 | 26.12 | 31.12 | 33.12 | 35.12 | 39.12 | 43.12 | 47.25 | 55.38 | 63.5 | 65.5 | / |
MM | 295 | 359 | 359 | 435 | 562 | 664 | 791 | 841 | 892 | 994 | 1095 | 1200 | 1407 | 1613 | 1664 | / | |
A - BW | IN | 11.5 | 14.0 | 14.0 | 17.0 | 22.0 | 26.0 | 31.0 | 33.0 | 35.0 | 39.0 | 43.0 | 47.0 | 55.0 | 63.0 | 65.0 | / |
MM | 292 | 356 | 356 | 432 | 559 | 660 | 787 | 838 | 889 | 991 | 1092 | 1194 | 1397 | 1600 | 1651 | / | |
F | IN | 2.01 | / | 2.99 | 4.02 | 5.98 | 7.99 | 9.92 | 11.89 | 13.15 | 15.28 | 17.17 | 19.29 | 23.31 | / | / | / |
MM | 51 | / | 76 | 102 | 152 | 203 | 252 | 302 | 334 | 388 | 436 | 490 | 592 | / | / | / | |
H1 | IN | 2.09 | 4.0 | 2.72 | 3.89 | 4.69 | 6.14 | 7.36 | 8.46 | 9.72 | 10.59 | 11.89 | 12.99 | 15.47 | 23.5 | 27.5 | / |
MM | 53 | 102 | 69 | 86 | 119 | 156 | 187 | 215 | 247 | 269 | 302 | 330 | 393 | 597 | 698 | / | |
H2 | IN | 4.92 | 8.6 | 6.36 | 7.48 | 10.51 | 13.43 | 15.87 | 18.23 | 20.67 | 22.24 | 24.69 | 26.69 | 31.34 | 53.1 | 56.3 | / |
MM | 125 | 219 | 161.5 | 190 | 267 | 341 | 403 | 463 | 525 | 565 | 627 | 678 | 796 | 1349 | 1429 | / | |
WGT (RF) |
LB | 88 | 121 | 159 | 254 | 551 | 926 | 1349 | 1786 | 2426 | 3638 | 3969 | 6168 | 7197 | 9041 | 11025 | / |
KG | 40 | 55 | 72 | 115 | 250 | 420 | 612 | 810 | 1100 | 1650 | 1800 | 2800 | 3264 | 4100 | 5000 | / | |
WGT (BW) |
LB | 68 | 99 | 132 | 176 | 452 | 805 | 1085 | 1577 | 1940 | 2955 | 3197 | 5177 | 5654 | 7718 | 9482 | / |
KG | 31 | 45 | 60 | 80 | 205 | 365 | 492 | 715 | 880 | 1340 | 1450 | 2350 | 2564 | 3500 | 4300 | / |
Full Port Swing Check Valves - API 6D
Sizes: 2" - 30"
Class: 900
SIZE | IN | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 28 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 750 | 900 | |
A - RF | IN | 14.5 | 15.0 | 15.0 | 18.0 | 24.0 | 29.0 | 33.0 | 38.0 | 40.5 | 44.5 | 48.0 | 52.0 | 61.0 | 69.0 | 73.0 | / |
MM | 368 | 381 | 381 | 457 | 610 | 737 | 838 | 965 | 1029 | 1130 | 1219 | 1321 | 1549 | 1753 | 1854 | / | |
A - RTJ | IN | 14.62 | 16.62 | 16.62 | 18.12 | 24.12 | 29.12 | 33.12 | 38.12 | 40.88 | 44.88 | 48.5 | 52.5 | 61.75 | 69.9 | 73.9 | / |
MM | 371 | 422 | 422 | 460 | 613 | 740 | 841 | 968 | 1038 | 1140 | 1232 | 1333 | 1568 | 1775 | 1876 | / | |
A - BW | IN | 14.5 | 15.0 | 15.0 | 18.0 | 24.0 | 29.0 | 33.0 | 38.0 | 40.5 | 44.5 | 48.0 | 52.0 | 61.0 | 69.0 | 73.0 | / |
MM | 368 | 381 | 381 | 457 | 610 | 737 | 838 | 965 | 1029 | 1130 | 1219 | 1321 | 1549 | 1753 | 1854 | / | |
F | IN | 2.05 | / | 2.99 | 4.02 | 5.98 | 7.99 | 9.92 | 12.01 | 12.68 | 14.68 | / | / | / | / | / | / |
MM | 52 | / | 76 | 102 | 152 | 203 | 252 | 305 | 322 | 373 | / | / | / | / | / | / | |
H1 | IN | 4 | 5 | 3.03 | 3.7 | 8.86 | 6.42 | 7.72 | 8.98 | 10 | 10.83 | 16.5 | 18.0 | 26.5 | 25.25 | 30 | / |
MM | 61 | 127 | 77 | 94 | 225 | 163 | 196 | 228 | 254 | 275 | 419 | 457 | 546 | 641 | 762 | / | |
H2 | IN | 5.2 | 13.7 | 7.28 | 8.86 | 11.69 | 14.96 | 17.4 | 20 | 23.66 | 24.02 | 36.3 | 41.4 | 47.2 | 55.1 | 61.8 | / |
MM | 132 | 349 | 185 | 225 | 297 | 380 | 442 | 508 | 601 | 610 | 921 | 1051 | 1200 | 1400 | 1569 | / | |
WGT (RF) |
LB | 154 | 243 | 243 | 471 | 838 | 1375 | 2536 | 3197 | 3859 | 5336 | 7166 | 8820 | 12789 | 17309 | 19955 | / |
KG | 70 | 110 | 110 | 214 | 380 | 624 | 1150 | 1450 | 1750 | 2420 | 3250 | 4000 | 5800 | 7800 | 9050 | / | |
WGT (BW) |
LB | 110 | 192 | 187 | 383 | 662 | 1088 | 2095 | 2602 | 3197 | 4520 | 5954 | 7275 | 9923 | 14663 | 16868 | / |
KG | 50 | 87 | 85 | 174 | 300 | 494 | 950 | 1180 | 1450 | 2050 | 2700 | 3300 | 4500 | 6650 | 7650 | / |
Full Port Swing Check Valves - API 6D
Sizes: 2" - 24"
Class: 1500
SIZE | IN | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 750 | 900 | |
A - RF | IN | 14.5 | 18.5 | 18.5 | 21.5 | 27.75 | 32.75 | 39.0 | 44.5 | 49.5 | 54.5 | 60.5 | 65.5 | 76.5 | / | / |
MM | 368 | 470 | 470 | 546 | 705 | 832 | 991 | 1130 | 1257 | 1383 | 1537 | 1664 | 1943 | / | / | |
A - RTJ | IN | 14.62 | 18.62 | 18.62 | 21.62 | 28.0 | 33.13 | 39.38 | 45.12 | 50.25 | 55.38 | 61.38 | 66.38 | 77.62 | / | / |
MM | 371 | 473 | 473 | 549 | 711 | 841 | 1000 | 1146 | 1276 | 1407 | 1559 | 1686 | 1972 | / | / | |
A - BW | IN | 14.5 | 18.5 | 18.5 | 21.5 | 27.75 | 32.75 | 39.0 | 44.5 | 49.5 | 54.5 | 60.5 | 65.5 | 76.5 | / | / |
MM | 368 | 470 | 470 | 546 | 705 | 832 | 991 | 1130 | 1257 | 1383 | 1537 | 1664 | 1943 | / | / | |
F | IN | 2.01 | / | 2.99 | 4.02 | 5.75 | 7.64 | 9.53 | 15.35 | / | / | / | / | / | / | / |
MM | 51 | / | 76 | 102 | 146 | 194 | 242 | 390 | / | / | / | / | / | / | / | |
H1 | IN | 2.83 | 5.25 | 3.5 | 4.17 | 5.43 | 6.93 | 8.35 | 9.76 | 16.25 | 17.25 | 19.0 | 20.5 | 24.0 | / | / |
MM | 72 | 133 | 89 | 106 | 138 | 176 | 212 | 248 | 412 | 438 | 482 | 520 | 609 | / | / | |
H2 | IN | 6.61 | 13.7 | 8.82 | 10.32 | 13.27 | 16.63 | 19.69 | 20.98 | 40.8 | 42.0 | 47.1 | 51.1 | 57.1 | / | / |
MM | 168 | 349 | 224 | 262 | 337 | 422.5 | 500 | 553 | 1035 | 1067 | 1197 | 1299 | 1451 | / | / | |
WGT (RF) |
LB | 154 | 243 | 375 | 662 | 1531 | 2624 | 4079 | 7336 | 7938 | 10805 | 14553 | 17971 | 25909 | / | / |
KG | 70 | 110 | 170 | 300 | 695 | 1190 | 1850 | 3330 | 3600 | 4900 | 6600 | 8150 | 11750 | / | / | |
WGT (BW) |
LB | 110 | 192 | 298 | 540 | 1234 | 2128 | 3263. | 6080 | 6251 | 8599 | 11576 | 14222 | 19845 | / | / |
KG | 50 | 87 | 135 | 245 | 560 | 965 | 1480 | 2760 | 2835 | 3900 | 5250 | 6450 | 9000 | / | / |
Full Port Swing Check Valves - API 6D
Sizes: 2" - 16"
Class: 2500
SIZE | IN | 2 | 2.5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 30 | 36 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 750 | 900 | |
A - RF | IN | 17.75 | 22.75 | 22.75 | 26.5 | 36.0 | 40.25 | 42.13 | 56.0 | 62.0 | 68.0 | / | / | / | / | / |
MM | 451 | 578 | 578 | 673 | 914 | 1022 | 1070 | 1422 | 1575 | 1727 | / | / | / | / | / | |
A - RTJ | IN | 17.87 | 23.0 | 23.0 | 26.88 | 36.5 | 40.87 | 50.88 | 56.88 | 62.88 | 68.88 | / | / | / | / | / |
MM | 454 | 584 | 584 | 683 | 927 | 1038 | 1292 | 1445 | 1597 | 1750 | / | / | / | / | / | |
A - BW | IN | 17.75 | 22.75 | 22.75 | 26.5 | 36.0 | 40.25 | 42.13 | 56.0 | 62.0 | 68.0 | / | / | / | / | / |
MM | 451 | 578 | 578 | 673 | 914 | 1022 | 1070 | 1422 | 1575 | 1727 | / | / | / | / | / | |
F | IN | 1.65 | / | 2.44 | 3.42 | 5.16 | 7.05 | 8.78 | 10.43 | / | / | / | / | / | / | / |
MM | 42 | / | 62 | 87 | 131 | 179 | 223 | 265 | / | / | / | / | / | / | / | |
H1 | IN | 3.15 | 6.0 | 3.86 | 4.65 | 5.94 | 7.36 | 9.06 | 10 | 17.5 | 19.25 | / | / | / | / | / |
MM | 80 | 152 | 98 | 118 | 151 | 187 | 230 | 254 | 444 | 489 | / | / | / | / | / | |
H2 | IN | 6.93 | 16.5 | 9.92 | 11.22 | 14.37 | 17.83 | 21.26 | 23.46 | 47.2 | 51.1 | / | / | / | / | / |
MM | 176 | 419 | 252 | 285 | 365 | 453 | 540 | 596 | 1200 | 1299 | / | / | / | / | / | |
WGT (RF) |
LB | 331 | 529 | 772 | 1433 | 3197 | 5622 | 8709 | 12568 | / | / | / | / | / | / | / |
KG | 150 | 240 | 350 | 650 | 1450 | 2550 | 3950 | 5700 | / | / | / | / | / | / | / | |
WGT (BW) |
LB | 225 | 430 | 477 | 839 | 2646 | 4851 | 6946 | 10033 | 13671 | 17861 | / | / | / | / | / |
KG | 102 | 195 | 216 | 381 | 1200 | 2200 | 3150 | 4550 | 6200 | 8100 | / | / | / | / | / |