Dual Plate Check Valves - API 594

Wafer Design
Class: 150 - 2500
Sizes: 1.5” - 84”

Lug Design
Class: 150 - 900
Sizes: 2” - 36”
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 Dual Plate Check Valve design naturally reduces fluid drag allowing easy opening and fast closure with minimal “hammering”. Our dual plate check design weighs a fraction of the full-bodied Swing or Piston Check valves.

The SCV designs offers many features and options beneficial for oil, liquid gas, and liquid applications.
DESIGN & MANUFACTURING STANDARDS
Basic Design API 594
Face-to-Face Dimension API 594 & ANSI/ASME B16.10
Flange End Dimension ANSI/ASME B16.5
Inspection & Testing API 598
EXPANDED VIEWS & BILLS OF MATERIALS (Click link for information.)​​
Dual Plate Check Valve
DIMENSIONAL DATA (Click link for information.)​​​
Class: 150; Sizes: 2" - 36"
Class: 300; Sizes: 2" - 36"
Class: 600; Sizes: 2" - 30"
Class: 900; Sizes: 2" - 30"
Class: 1500; Sizes: 2" - 24"
Class: 2500; Sizes: 2" - 16"
Click to download brochure.
Dual Plate Check Valve - Expanded View (See "Bill of Materials" below)
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
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DIMENSIONAL DATA - FULL PORT
DIMENSIONAL DATA
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
DIMENSIONAL DATA
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
DIMENSIONAL DATA
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 /
DIMENSIONAL DATA
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 /
DIMENSIONAL DATA
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 / /
DIMENSIONAL DATA
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 / / / / /
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What Our Clients Are Saying

SCV is very competitive and eager to work on pricing to meet customers needs. The SCV team always seems eager to fulfill the customers needs no matter the situation. Whenever something is asked for, no matter how trivial, it is received in a timely fashion and not regarded as a "waste of time" as we have seen from other companies. My experience with SCV has always been excellent.  I know I can rely on them to meet/exceed my customers needs and the information given has always been 100% accurate."

Trevor H."
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Dual Plate Check Valve Manufacturer