Trusted Dual Plate Check Valve Manufacturer
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Learn More About Dual Plate Check Valve
- Spring Loaded
- Size Range: NPS 2 to NPS 48
- Pressure Range: 150LB to 2500LB
- Design STD.: API594/ API6D
- Dual Plate Check Valve Manufacturer & Supplier
Dual Plate Check Valve Design Features
Main Parts Materials
BODY | DISC | BODY SEAT | DISC SEAT | SPRING | WETTED PARTS | |
A216 Gr.WCB | A351 Gr.CF8M | Same as Body | Same asDisc | Inconel X-750 | 316 SS | |
A216 Gr.WCB | A351 Gr.CF8M | Viton | Same asDisc | Inconel X-750 | 316 SS | |
A216 Gr.WCB | A351 Gr.CF8M | Stellite overlay | Same asDisc | Inconel X-750 | 316 SS | |
A216 Gr.WCB | A217 Gr.CA15 | 410SS overlay | Same asDisc | Inconel X-750 | 410 SS | |
A216 Gr.WCB | A217 Gr.CA15 | Stellite overlay | Same asDisc | Inconel X-750 | 410 SS |
BODY | DISC | BODY SEAT | DISC SEAT | SPRING | WETTED PARTS | |
A352 Gr.LCC | A351 Gr.CF8M | Same as Body | Same asDisc | Inconel X-750 | 316 SS | |
A352 Gr.LCC | A351 Gr.CF8M | Buna-N | Same asDisc | Inconel X-750 | 316 SS | |
A352 Gr.LCC | A351 Gr.CF8M | Stellite overlay | Same asDisc | Inconel X-750 | 316 SS |
BODY | DISC | BODY SEAT | DISC SEAT | SPRING | WETTED PARTS |
A351 Gr.CF8M | A351 Gr.CF8M | Same as Body | Same asDisc | Inconel X-750 | 316 SS |
A351 Gr.CF8M | A351 Gr.CF8M | Viton | Same asDisc | Inconel X-750 | 316 SS |
A351 Gr.CF8M | A351 Gr.CF8M | Stellite overlay | Same as Disc | Inconel X-750 | 316 SS |
Flow Volume vs Pressure Drop
Friction Factor Flow Coefficiency
SIZE | Friction Factor | FlowCoefficiency | Flow Direction | |||
UnderValveFullOPENξ | Under Standard Temp. | |||||
(in.) | Cv | Kv | Cv(U.S) | Cv(U.k) | Approx.Open | Pressure KPa |
2 | 2.6 | 63 | 74 | 62 | 2 | 1 |
2-1/2 | 2.4 | 109 | 128 | 107 | 2 | 1 |
3 | 2.3 | 172 | 201 | 169 | 2 | 1 |
4 | 2 | 289 | 338 | 283 | 2 | 1 |
5 | 1.8 | 476 | 557 | 466 | 2 | 1 |
6 | 1.5 | 750 | 878 | 735 | 2 | 1 |
8 | 1.3 | 1432 | 1675 | 1403 | 2 | 1 |
10 | 1.2 | 2330 | 2726 | 2283 | 2 | 1 |
12 | 1 | 3676 | 4301 | 3602 | 2 | 1 |
14 | 0.9 | 5274 | 6171 | 5169 | 2 | 1 |
16 | 0.8 | 7306 | 8548 | 7160 | 3 | 1 |
18 | 0.8 | 9246 | 10818 | 9061 | 3 | 1 |
20 | 0.8 | 11415 | 13356 | 11187 | 3 | 1 |
24 | 0.7 | 17573 | 20560 | 17222 | 3 | 1 |
28 | 0.7 | 23919 | 27985 | 23441 | 4 | 1 |
30 | 0.7 | 27458 | 32126 | 26909 | 4 | 1 |
32 | 0.7 | 31241 | 36552 | 30616 | 4 | 1 |
36 | 0.7 | 39539 | 46261 | 38748 | 4 | 1 |
40 | 0.7 | 48814 | 57112 | 47838 | 4 | 1 |
42 | 0.7 | 53817 | 62966 | 52741 | 4 | 1 |
48 | 0.7 | 70292 | 82242 | 68886 | 4 | 1 |
Wafer Dual Plate Check Valve
Class 150 Dimension
- Cast Steel Check Valve, Wafer Ends, Dual Plates
- Spring Loaded, Horizontal or Vertical Lines
- Designed to API594.API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL150 |
Class 150 Dimension
STUD/BOLTING DETAILS | |||||||||||
SIZE (in.) | L | D1 | D2 | W.T(kg) | D3 | NO. | DIA. | LENGTH | |||
in | mm | RF | RTJ Unit:mm | ||||||||
1-1/2 | 60 | 83 | 38 | 45 | 2 | 98.5 | 4 | 1/2 | M14 | 130 | 145 |
2 | 60 | 103 | 51 | 56 | 2 | 120.5 | 4 | 5/8 | M16 | 140 | 155 |
2-1/2 | 67 | 122 | 65 | 73 | 3 | 139.5 | 4 | 5/8 | M16 | 150 | 165 |
3 | 73 | 135 | 80 | 88 | 4 | 152.5 | 4 | 5/8 | M16 | 160 | 175 |
4 | 73 | 173 | 102 | 108 | 6 | 190.5 | 8 | 5/8 | M16 | 170 | 185 |
5 | 86 | 195 | 127 | 132 | 8 | 216 | 8 | 3/4 | M20 | 190 | 205 |
6 | 98 | 220 | 152 | 160 | 12 | 241.5 | 8 | 3/4 | M20 | 205 | 220 |
8 | 127 | 277 | 203 | 210 | 25 | 298.5 | 8 | 3/4 | M20 | 240 | 255 |
10 | 146 | 337 | 254 | 266 | 38 | 362 | 12 | 7/8 | M24 | 270 | 285 |
12 | 181 | 407 | 305 | 310 | 52 | 432 | 12 | 7/8 | M24 | 310 | 325 |
14 | 184 | 448 | 350 | 355 | 80 | 476 | 12 | 1 | M27 | 325 | 340 |
16 | 191 | 512 | 400 | 405 | 115 | 540 | 16 | 1 | M27 | 340 | 355 |
18 | 203 | 547 | 450 | 455 | 138 | 578 | 16 | 1-1/8 | M30 | 365 | 380 |
20 | 219 | 604 | 500 | 505 | 162 | 635 | 20 | 1-1/8 | M30 | 385 | 400 |
24 | 222 | 715 | 600 | 605 | 330 | 749.5 | 20 | 1-1/4 | M33 | 405 | 420 |
26 | 222 | 722 | 633 | 650 | 360 | 744.5 | 36 | 3/4 | M20 | 365 | – |
28 | 305 | 773 | 700 | 700 | 380 | 795.5 | 40 | 3/4 | M20 | 455 | – |
30 | 305 | 824 | 746 | 750 | 420 | 846 | 44 | 3/4 | M20 | 455 | – |
32 | 305 | 878 | 796 | 800 | 260 | 900 | 48 | 3/4 | M20 | 460 | – |
36 | 368 | 983 | 874 | 894 | 630 | 1009.5 | 44 | 7/8 | M24 | 540 | – |
40 | 432 | 1090 | 976 | 985 | 870 | 1120.5 | 44 | 1 | M27 | 620 | – |
42 | 432 | 1142 | 1050 | 1055 | 960 | 1171.5 | 48 | 1 | M27 | 625 | – |
44 | 432 | 1193 | 1070 | 1070 | 1140 | 1222 | 52 | 1 | M27 | 630 | – |
48 | 524 | 1302 | 1200 | 1205 | 1400 | 1335 | 44 | 1-1/8 | M30 | 740 | – |
54 | 591 | 1460 | 1312 | 1315 | 2240 | 1492 | 44 | 1-1/8 | M30 | 820 | – |
56 | 591 | 1512 | 1360 | 1370 | 2830 | 1543 | 60 | 1-1/8 | M30 | 820 | – |
60 | 660 | 1628 | 1458 | 1470 | 3200 | 1662 | 52 | 1-1/4 | M33 | 900 | – |
Class 300 Dimension
- Cast Steel Check Valve, Wafer Ends, Dual Plates
- Spring Loaded, Horizontal or Vertical Lines
- Designed to API594,API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL300 |
Class 300 Dimension
STUD/BOLTING DETAILS | |||||||||||
SIZE (in.) | L | D1 | D2 | W.T(kg) | D3 | NO. | DIA. | LENGTH | |||
in | mm | RF | RTJ Unit:mm | ||||||||
2 | 60 | 110 | 51 | 58 | 3 | 127 | 8 | 5/8 | M16 | 155 | 175 |
2-1/2 | 67 | 128 | 65 | 73 | 4 | 149 | 8 | 3/4 | M20 | 175 | 195 |
3 | 73 | 147 | 80 | 88 | 6 | 168.5 | 8 | 3/4 | M20 | 190 | 210 |
4 | 73 | 179 | 102 | 108 | 8 | 200 | 8 | 3/4 | M20 | 195 | 215 |
5 | 86 | 214 | 127 | 132 | 12 | 235 | 8 | 3/4 | M20 | 215 | 235 |
6 | 98 | 249 | 152 | 160 | 18 | 270 | 12 | 3/4 | M20 | 230 | 250 |
8 | 127 | 305 | 203 | 210 | 30 | 330 | 12 | 7/8 | M24 | 280 | 300 |
10 | 146 | 359 | 254 | 266 | 50 | 387.5 | 16 | 1 | M27 | 315 | 335 |
12 | 181 | 420 | 305 | 310 | 75 | 451 | 16 | 1-1/8 | M30 | 365 | 385 |
14 | 222 | 483 | 350 | 355 | 115 | 514.5 | 20 | 1-1/8 | M30 | 410 | 430 |
16 | 232 | 537 | 400 | 405 | 190 | 571.5 | 20 | 1-1/4 | M33 | 435 | 455 |
18 | 264 | 594 | 450 | 455 | 200 | 628.5 | 24 | 1-1/4 | M33 | 475 | 495 |
20 | 292 | 652 | 500 | 505 | 260 | 686 | 24 | 1-1/4 | M33 | 510 | 535 |
24 | 318 | 772 | 600 | 608 | 410 | 813 | 24 | 1-1/2 | M39x3 | 560 | 585 |
26 | 356 | 767 | 633 | 640 | 560 | 803 | 32 | 1-1/4 | M33 | 625 | – |
28 | 368 | 821 | 685 | 685 | 580 | 857 | 36 | 1-1/4 | M33 | 635 | – |
30 | 368 | 882 | 735 | 740 | 660 | 921 | 36 | 1-3/8 | M39x3 | 650 | – |
32 | 368 | 936 | 784 | 784 | 970 | 978 | 32 | 1-1/2 | M39x3 | 675 | – |
36 | 483 | 1044 | 873 | 880 | 1010 | 1089 | 32 | 1-5/8 | M42x3 | 800 | – |
40 | 546 | 1146 | 976 | 985 | 1420 | 1191 | 40 | 1-5/8 | M42x3 | 885 | – |
42 | 568 | 1196 | 1035 | 1045 | 1540 | 1244.5 | 36 | 1-3/4 | M45x3 | 920 | – |
48 | 629 | 1365 | 1166 | 1190 | 2250 | 1416 | 40 | 1-718 | M48x3 | 1010 | – |
54 | 718 | 1526 | 1312 | 1315 | 3100 | 1578 | 48 | 1-718 | M48x3 | 1140 | – |
60 | 838 | 1704 | 1458 | 1470 | 4310 | 1764 | 40 | 2-1/4 | M56x3 | 1280 | – |
*26″and larger are available with ASMEIANSIB16.47end flanges,either Style A or Style B(formerly MSS SP-44 and API605). |
Class 600/900 Dimension
- Cast Steel Check Valve, Wafer Ends, Dual Plates
- Spring Loaded, Horizontal or Vertical Lines
- Designed to API594,API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL600/900 |
STUD/BOLTING DETAILS | |||||||||||
SIZE (in.) | L | D1 | D2 | W.T(kg) | D3 | NO. | DIA. | LENGTH | |||
in | mm | RF | RTJ Unit:mm | ||||||||
2 | 60 | 110 | 51 | 58 | 4 | 127.0 | 8 | 5/8 | M16 | 175 | 180 |
2-12 | 67 | 128 | 65 | 73 | 5 | 149 | 8 | 3/4 | M20 | 195 | 200 |
3 | 73 | 147 | 80 | 88 | 8 | 168.5 | 8 | 3/4 | M20 | 210 | 215 |
4 | 79 | 191 | 102 | 108 | 11 | 216 | 8 | 7/8+ | M24 | 235 | 240 |
5 | 105 | 239 | 127 | 136 | 20 | 267 | 8 | 1 | M27 | 280 | 285 |
6 | 136 | 264 | 152 | 162 | 25 | 292 | 12 | 1 | M27 | 320 | 325 |
8 | 165 | 318 | 200 | 212 | 50 | 349 | 12 | 1-1/8 | M30 | 370 | 375 |
10 | 213 | 398 | 250 | 266 | 90 | 432 | 16 | 1-1/4 | M33 | 440 | 445 |
12 | 229 | 455 | 305 | 312 | 140 | 489 | 20 | 1-1/4 | M33 | 460 | 465 |
14 | 273 | 490 | 337 | 355 | 220 | 527 | 20 | 1-3/8 | M36x3 | 520 | 525 |
16 | 305 | 562 | 387 | 400 | 360 | 603 | 20 | 1-1/2 | M39x3 | 575 | 580 |
18 | 362 | 610 | 438 | 450 | 380 | 654 | 20 | 1-5/8 | M42x3 | 650 | 655 |
20 | 368 | 680 | 489 | 500 | 510 | 724 | 24 | 1-5/8 | M42X3 | 670 | 680 |
24 | 438 | 786 | 591 | 600 | 830 | 838 | 24 | 1-7/8 | M48x3 | 780 | 795 |
STUD/BOLTING DETAILS | |||||||||||
SIZE (in.) | L | D1 | D2 | W.T(kg) | D3 | NO. | DIA. | LENGTH | |||
in | mm | RF | RTJ Unit:mm | ||||||||
2 | 70 | 140 | 51 | 58 | 8 | 165.0 | 8 | 7/8 | M24 | 225 | 230 |
2-1/2 | 83 | 162 | 65 | 73 | 10 | 190.5 | 8 | 1 | M27 | 250 | 255 |
3 | 83 | 165 | 80 | 90 | 14 | 190.5 | 8 | 7/8 | M24 | 240 | 245 |
4 | 102 | 204 | 102 | 108 | 20 | 235 | 8 | 1-1/8 | M30 | 285 | 290 |
5 | 110 | 245 | 127 | 136 | 30 | 279.5 | 8 | 1-1/4 | M33 | 310 | 315 |
6 | 159 | 286 | 150 | 162 | 40 | 317.5 | 12 | 1-1/8 | M30 | 365 | 370 |
8 | 206 | 356 | 200 | 212 | 80 | 393.5 | 12 | 1-3/8 | M36x3 | 440 | 445 |
10 | 241 | 432 | 250 | 266 | 140 | 470 | 16 | 1-3/8 | M36x3 | 490 | 495 |
12 | 292 | 495 | 305 | 312 | 220 | 533.5 | 20 | 1-3/8 | M36x3 | 560 | 565 |
14 | 356 | 518 | 337 | 355 | 350 | 559 | 20 | 1-1/2 | M39x3 | 645 | 655 |
16 | 384 | 572 | 387 | 400 | 470 | 616 | 20 | 1-5/8 | M42X3 | 685 | 695 |
18 | 451 | 635 | 438 | 450 | 600 | 686 | 20 | 1-7/8 | M48x3 | 790 | 805 |
20 | 451 | 695 | 487 | 496 | 820 | 749.5 | 20 | 2 | M52X3 | 810 | 825 |
24 | 495 | 835 | 591 | 600 | 1050 | 901.5 | 20 | 2-1/2 | M64x3 | 945 | 965 |
*26″and larger are available with ASME/ANSIB16.47 end flanges,either Style Aor Style B(formerly MSS SP-44and API 605). |
Class 1500 Dimension
- Cast Steel Check Valve, Wafer Ends, Dual Plates
- Spring Loaded, Horizontal or Vertical Lines
- Designed to API594,API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL 1500 |
Class 1500 Dimension
STUD/BOLTING DETAILS | |||||||||||
SIZE (in.) | L | D1 | D2 | W.T(kg) | D3 | NO. | DIA. | LENGTH | |||
in | mm | RF | RTJ Unit:mm | ||||||||
2 | 70 | 140 | 51 | 58 | 8 | 165.0 | 8 | 7/8 | M24 | 225 | 230 |
2-1/2 | 83 | 162 | 65 | 73 | 10 | 190.5 | 8 | 1 | M27 | 250 | 255 |
3 | 83 | 172 | 80 | 90 | 18 | 203 | 8 | 1-1/8 | M30 | 270 | 275 |
4 | 102 | 207 | 102 | 108 | 25 | 241.5 | 8 | 1-1/4 | M33 | 310 | 315 |
5 | 110 | 252 | 127 | 136 | 50 | 292 | 8 | 1-1/2 | M39x3 | 370 | 375 |
6 | 159 | 280 | 150 | 162 | 65 | 317.5 | 12 | 1-3/8 | M36x3 | 430 | 440 |
8 | 206 | 350 | 200 | 212 | 130 | 393.5 | 12 | 1-5/8 | M42x3 | 510 | 520 |
10 | 248 | 433 | 254 | 266 | 210 | 482.5 | 12 | 1-7/8 | M48x3 | 600 | 610 |
12 | 305 | 518 | 305 | 312 | 380 | 571.5 | 16 | 2 | M52x3 | 695 | 715 |
14 | 356 | 576 | 337 | 355 | 550 | 635 | 16 | 2-1/4 | M56x3 | 775 | 800 |
16 | 384 | 639 | 387 | 400 | 630 | 705 | 16 | 2-1/2 | M64x3 | 850 | 880 |
18 | 468 | 701 | 430 | 438 | 790 | 774.5 | 16 | 1-3/4 | M70x3 | 955 | 985 |
20 | 533 | 753 | 478 | 487 | 1270 | 832 | 16 | 3 | M76x3 | 1065 | 1095 |
24 | 559 | 897 | 570 | 578 | 2710 | 990.5 | 16 | 3-1/2 | M90x3 | 1170 | 1205 |
*26″and larger are available with ASMEIANSIB16.47end flanges,either Style Aor Style B(formerly MSSSP-44 and API605). |
Lug Dual Plate Check Valve
Class 150 Dimension
- Cast Steel Check Valve, Wafer Ends
- Dual Plates, Fully Lugged, Spring Loaded
- Horizontal or Vertical Lines
- Designed to AP594,API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL 150 |
Class 150 Dimension
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
2 | 60 | 120.5 | 92 | 51 | 56 | 4 | 3/4 | 19 | 4 | 5/8 | M16 | 140 | 155 | |
2-1/2 | 67 | 139.5 | 105 | 65 | 7 | 5.5 | 3/4 | 19 | 4 | 5/8 | M16 | 150 | 165 | |
3 | 73 | 152.5 | 127 | 80 | 88 | 7 | 3/4 | 19 | 4 | 5/8 | M16 | 160 | 175 | |
4 | 73 | 190.5 | 157 | 102 | 108 | 11 | 3/4 | 19 | 8 | 5/8 | M16 | 170 | 185 | |
5 | 86 | 216 | 186 | 127 | 132 | 15 | 7/8 | 22 | 8 | 3/4 | M20 | 190 | 205 | |
6 | 98 | 241.5 | 216 | 152 | 160 | 19 | 7/8 | 22 | 8 | 3/4 | M20 | 205 | 220 | |
8 | 127 | 298.8 | 270 | 203 | 210 | 36 | 7/8 | 22 | 8 | 3/4 | M20 | 240 | 255 | |
10 | 146 | 362 | 324 | 254 | 266 | 61 | 1 | 25 | 12 | 718 | M24 | 270 | 285 | |
12 | 181 | 432 | 381 | 305 | 310 | 119 | 1 | 25 | 12 | 7/8 | M24 | 310 | 325 | |
14 | 184 | 476 | 413 | 350 | 355 | 131 | 1-1/8 | 29 | 12 | 1 | M27 | 325 | 340 | |
16 | 191 | 540 | 470 | 400 | 405 | 180 | 1-1/8 | 29 | 16 | 1 | M27 | 340 | 355 | |
18 | 203 | 578 | 533 | 450 | 455 | 203 | 1-1/4 | 32 | 16 | 1-1/8 | M30 | 365 | 380 | |
20 | 219 | 635 | 584 | 500 | 505 | 275 | 1-1/4 | 32 | 20 | 1-1/8 | M30 | 385 | 400 | |
24 | 222 | 749.5 | 692 | 600 | 605 | 314 | 1-1/4 | 35 | 20 | 1-1/4 | M33 | 405 | 420 | |
28 | 305 | 795.5 | 762 | 700 | 700 | 910 | 718 | 22 | 40 | 3/4 | M20 | 455 | – | |
30 | 305 | 846 | 813 | 746 | 750 | 1025 | 7/8 | 22 | 44 | 3/4 | M20 | 455 | – | |
32 | 305 | 900 | 864 | 796 | 800 | 1344 | 718 | 22 | 48 | 3/4 | M20 | 460 | – | |
36 | 368 | 1009.5 | 972 | 898 | 910 | 1536 | 1 | 25 | 44 | 7/8 | M24 | 540 | – | |
42 | 432 | 1171.5 | 1130 | 1050 | 1055 | 2310 | 1-1/8 | 29 | 48 | 1 | M27 | 625 | – | |
48 | 524 | 1335 | 1289 | 1200 | 1205 | 3364 | 1-1/4 | 32 | 44 | 1-1/8 | M30 | 740 | – | |
*26″and larger are available with ASME/ANSIB16.47end flanges,either Style Aor Style B (formerly MSS SP-44 and API605). |
Class 300 Dimension
- Cast Steel Check Valve, Wafer Ends
- Dual Plates, Fully Lugged, Spring Loaded
- Horizontal or Vertical Lines
- Designed to AP594,API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL300 |
Class 300 Dimension
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
2 | 60 | 127 | 92 | 51 | 58 | 6 | 3/4 | 19 | 8 | 5/8 | M16 | 155 | 175 | |
2-1/2 | 67 | 149 | 105 | 65 | 73 | 7 | 7/8 | 22 | 8 | 3/4 | M20 | 175 | 195 | |
3 | 73 | 168.5 | 127 | 80 | 88 | 10 | 7/8 | 0 | 8 | 3/4 | M20 | 190 | 210 | |
4 | 73 | 200 | 157 | 102 | 108 | 16 | 7/8 | 22 | 8 | 3/4 | M20 | 175 | 215 | |
5 | 86 | 235 | 186 | 127 | 132 | 29 | 7/8 | 22 | 8 | 3/4 | M20 | 215 | 235 | |
6 | 98 | 270 | 216 | 152 | 160 | 32 | 7/8 | 22 | 12 | 3/4 | M20 | 230 | 250 | |
8 | 127 | 330 | 270 | 203 | 210 | 55 | 1 | 25 | 12 | 7/8 | M24 | 280 | 300 | |
10 | 146 | 387.5 | 324 | 254 | 266 | 82 | 1-1/8 | 29 | 16 | 1 | M27 | 315 | 335 | |
12 | 181 | 451 | 381 | 305 | 310 | 92 | 1-1/4 | 32 | 16 | 1-1/8 | M30 | 365 | 385 | |
14 | 222 | 514.5 | 413 | 350 | 355 | 251 | 1-1/4 | 32 | 20 | 1-1/8 | M30 | 410 | 430 | |
16 | 232 | 571.5 | 470 | 405 | 405 | 342 | 1-3/8 | 35 | 20 | 1-1/4 | M33 | 435 | 455 | |
18 | 264 | 628.5 | 533 | 455 | 455 | 391 | 1-3/8 | 35 | 24 | 1-1/4 | M33 | 475 | 495 | |
20 | 292 | 686 | 584 | 505 | 505 | 536 | 1-3/8 | 35 | 24 | 1-1/4 | M33 | 510 | 535 | |
24 | 318 | 813 | 692 | 608 | 608 | 833 | 1-5/8 | 41 | 24 | 1-1/2 | M39 | 560 | 585 | |
30 | 368 | 921 | 845 | 735 | 740 | 1395 | 1-1/2 | 38 | 36 | 1-3/8 | M36 | 650 | – | |
36 | 483 | 1089 | 1010 | 873 | 880 | 1862 | 1-3/4 | 45 | 32 | 1-5/8 | M42 | 800 | – | |
42 | 568 | 1245 | 1168 | 1035 | 1045 | 3861 | 1-7/8 | 48 | 36 | 1-3/4 | M45 | 920 | – | |
48 | 629 | 1416 | 1327 | 1179 | 1190 | 4370 | 2 | 51 | 40 | 1-7/8 | M48 | 1010 | – | |
*26″and larger are available with ASMEIANSIB16.47end flanges,either Style Aor Style B(formerlyMSS SP-44 and API605). |
Class 600/900 Dimension
- Cast Steel Check Valve, Wafer Ends
- Dual Plates, Fully Lugged, Spring Loaded
- Horizontal or Vertical Lines
- Designed to AP1594.API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL600/900 |
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
2 | 60 | 127 | 92 | 51 | 58 | 6.5 | 3/4 | 19 | 8 | 5/8 | M16 | 175 | 180 | |
2-1/2 | 67 | 149 | 100 | 65 | 73 | 8 | 7/8 | 22 | 8 | 3/4 | M20 | 195 | 200 | |
3 | 73 | 168 | 127 | 80 | 88 | 10 | 7/8 | 22 | 8 | 3/4 | M20 | 210 | 215 | |
4 | 79 | 216 | 157 | 102 | 108 | 21 | 1 | 25 | 8 | 7/8 | M24 | 235 | 240 | |
5 | 105 | 266.5 | 186 | 127 | 136 | 41 | 1-1/8 | 29 | 8 | 1 | M27 | 280 | 285 | |
6 | 136 | 292 | 216 | 152 | 162 | 57 | 1-1/8 | 29 | 12 | 1 | M27 | 320 | 325 | |
8 | 165 | 349 | 270 | 200 | 212 | 94 | 1-1/8 | 32 | 12 | 1-1/8 | M30 | 370 | 375 | |
10 | 213 | 432 | 324 | 250 | 266 | 164 | 1-3/8 | 35 | 16 | 1-1/4 | M33 | 440 | 445 | |
12 | 229 | 489 | 381 | 305 | 312 | 213 | 1-3/8 | 35 | 20 | 1-1/4 | M33 | 460 | 465 | |
14 | 273 | 527 | 413 | 337 | 355 | 343 | 1-1/2 | 38 | 20 | 1-3/8 | M36 | 520 | 525 | |
16 | 305 | 603 | 470 | 387 | 400 | 476 | 1-5/8 | 41 | 20 | 1-1/2 | M39 | 575 | 580 | |
18 | 362 | 654 | 533 | 438 | 450 | 685 | 1-3/4 | 44 | 20 | 1-5/8 | M42 | 650 | 655 | |
20 | 368 | 724 | 584 | 489 | 500 | 908 | 1-3/4 | 44 | 24 | 1-5/8 | M42 | 670 | 680 | |
24 | 438 | 838 | 692 | 591 | 600 | 1088 | 2 | 52 | 24 | 1-7/8 | M48 | 780 | 790 |
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
2 | 70 | 165.1 | 92 | 51 | 58 | 13 | 1 | 26 | 8 | 7/8 | M24 | 225 | 230 | |
2-1/2 | 83 | 190.5 | 105 | 65 | 73 | 18 | 1-1/8 | 29 | 8 | 1 | M27 | 250 | 255 | |
3 | 83 | 190.5 | 127 | 80 | 90 | 21 | 1 | 26 | 8 | 7/8 | M24 | 240 | 245 | |
4 | 102 | 234.9 | 157 | 102 | 108 | 36 | 1-1/4 | 32 | 8 | 1-1/8 | M30 | 285 | 290 | |
5 | 110 | 279.4 | 186 | 127 | 136 | 65 | 1-3/8 | 35 | 8 | 1-1/4 | M33 | 310 | 315 | |
6 | 159 | 317.5 | 216 | 150 | 162 | 92 | 1-1/4 | 32 | 12 | 1-1/8 | M30 | 365 | 370 | |
8 | 206 | 393.7 | 270 | 200 | 212 | 174 | 1-1/2 | 39 | 12 | 1-3/8 | M36 | 440 | 445 | |
10 | 241 | 469.9 | 324 | 250 | 266 | 264 | 1-1/2 | 39 | 16 | 1-3/8 | M36 | 490 | 495 | |
12 | 292 | 533.4 | 381 | 305 | 312 | 211 | 1-1/2 | 39 | 20 | 1-3/8 | M36 | 560 | 565 | |
14 | 356 | 558.8 | 413 | 337 | 355 | 612 | 1-5/8 | 42 | 20 | 1-1/2 | M39 | 645 | 655 | |
16 | 384 | 615.9 | 470 | 387 | 400 | 712 | 1-3/4 | 45 | 20 | 1-5/8 | M42 | 685 | 695 | |
18 | 451 | 685.8 | 533 | 438 | 450 | 1160 | 2 | 51 | 20 | 1-7/8 | M48 | 790 | 805 | |
20 | 451 | 749.3 | 584 | 487 | 496 | 1568 | 2-1/8 | 54 | 20 | 2 | M52 | 810 | 825 | |
24 | 495 | 901.7 | 692 | 591 | 600 | 1881 | 2-5/8 | 67 | 20 | 2-1/2 | M64 | 945 | 965 |
Class 1500 Dimension
- Cast Steel Check Valve, Wafer Ends
- Dual Plates, Fully Lugged, Spring Loaded
- Horizontal or Vertical Lines
- Designed API594.API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL1500 |
Class 1500 Dimension
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
2 | 70 | 165.1 | 58 | 92 | 51 | 14 | 1 | 26 | 8 | 7/8 | M24 | 225 | 230 | |
2-1/2 | 83 | 190.5 | 73 | 105 | 65 | 19 | 1-1/8 | 29 | 8 | 1 | M27 | 250 | 255 | |
3 | 83 | 203.2 | 90 | 127 | 80 | 25 | 1-1/4 | 32 | 8 | 1-1/8 | M30 | 270 | 275 | |
4 | 102 | 241.3 | 108 | 157 | 102 | 43 | 1-3/8 | 35 | 8 | 1-1/4 | M33 | 310 | 315 | |
5 | 110 | 292.1 | 136 | 186 | 127 | 72 | 1-5/8 | 42 | 8 | 1-1/2 | M39 | 370 | 375 | |
6 | 159 | 317.5 | 162 | 216 | 150 | 101 | 1-1/2 | 39 | 12 | 1-3/8 | M36 | 430 | 440 | |
8 | 206 | 393.7 | 212 | 270 | 200 | 240 | 1-3/4 | 45 | 12 | 1-5/8 | M42 | 510 | 520 | |
10 | 248 | 482.6 | 266 | 324 | 254 | 306 | 2 | 51 | 12 | 1-7/8 | M48 | 600 | 610 | |
12 | 305 | 571.5 | 312 | 381 | 305 | 541 | 2-1/8 | 54 | 16 | 2 | M52 | 695 | 715 | |
14 | 356 | 635 | 355 | 413 | 337 | 932 | 2-3/8 | 61 | 16 | 2-1/4 | M56 | 775 | 800 | |
16 | 384 | 704.8 | 400 | 470 | 387 | 980 | 2-5/8 | 67 | 16 | 2-1/2 | M64 | 850 | 880 | |
*26″and larger are available with ASME/ANSIB16.47end flanges,either Style A or Style B(formerly MSS SP-44 and API605). |
Flanged Dual Plate Check Valve
Class 150/300 Dimension
- Cast Steel Check Valve, Double Flanged Ends
- Dual Plates, Spring Loaded
- Horizontal or Vertical Lines
- Designed to API594.API6D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL150/300 |
Class 150/300 Dimension
CLASS 150 DIMENSION | ||||||||||||||
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | |||||||||
8 | 127 | 343 | 298.5 | 203 | 270 | 210 | 63 | 7/8 | 22 | 8 | 3/4 | M20 | 120 | 135 |
10 | 146 | 406 | 362 | 254 | 324 | 266 | 93 | 1 | 25 | 12 | 7/8 | M24 | 135 | 150 |
12 | 181 | 483 | 432 | 305 | 381 | 310 | 170 | 1 | 25 | 12 | 7/8 | M24 | 135 | 150 |
14 | 184 | 533 | 476 | 350 | 413 | 355 | 199 | 1-1/8 | 29 | 12 | 1 | M27 | 145 | 160 |
16 | 191 | 597 | 540 | 400 | 470 | 405 | 246 | 1-1/8 | 29 | 16 | 1 | M27 | 155 | 170 |
18 | 203 | 635 | 578 | 450 | 533 | 455 | 290 | 1-1/4 | 32 | 16 | 1-1/8 | M30 | 165 | 180 |
20 | 219 | 699 | 635 | 500 | 584 | 505 | 348 | 1-1/4 | 32 | 20 | 1-1/8 | M30 | 170 | 185 |
24 | 222 | 813 | 749.5 | 600 | 692 | 605 | 396 | 1-1/4 | 35 | 20 | 1-1/4 | M33 | 185 | 200 |
28 | 305 | 837 | 795.5 | 700 | 762 | 700 | 1270 | 7/8 | 22 | 40 | 3/4 | M20 | 205 | |
30 | 305 | 887 | 846 | 746 | 813 | 750 | 1987 | 7/8 | 22 | 44 | 3/4 | M20 | 210 | |
32 | 305 | 941 | 900 | 796 | 864 | 800 | 2925 | 7/8 | 22 | 48 | 3/4 | M20 | 225 | |
36 | 368 | 1057 | 1009.5 | 898 | 972 | 910 | 1430 | 1 | 25 | 44 | 7/8 | M24 | 250 | |
42 | 432 | 1226 | 1171.5 | 1050 | 1130 | 1055 | 2377 | 1-1/8 | 29 | 48 | 1 | M27 | 275 | |
48 | 524 | 1392 | 1335 | 1200 | 1289 | 1205 | 4174 | 1-1/4 | 32 | 44 | 1-1/8 | M30 | 305 | |
CLASS 300 DIMENSION | ||||||||||||||
STUD/BOLTING DETAILS | ||||||||||||||
SIZE (in.) | L | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
8 | 381 | 127 | 330 | 203 | 210 | 270 | 78 | 1 | 25 | 12 | 7/8 | M24 | 155 | 175 |
10 | 445 | 146 | 387.5 | 254 | 266 | 324 | 115 | 1-1/8 | 29 | 16 | 1 | M27 | 175 | 195 |
12 | 521 | 181 | 451 | 305 | 310 | 381 | 242 | 1-1/4 | 32 | 16 | 1-1/8 | M30 | 185 | 205 |
14 | 584 | 222 | 514.5 | 350 | 355 | 413 | 360 | 1-1/4 | 32 | 20 | 1-1/8 | M30 | 195 | 215 |
16 | 648 | 232 | 571.5 | 400 | 405 | 470 | 489 | 1-3/8 | 35 | 20 | 1-1/4 | M33 | 205 | 225 |
18 | 711 | 264 | 628.5 | 450 | 455 | 533 | 558 | 1-3/8 | 35 | 24 | 1-1/4 | M33 | 210 | 230 |
20 | 775 | 292 | 686 | 500 | 505 | 584 | 766 | 1-3/8 | 35 | 24 | 1-1/4 | M33 | 215 | 230 |
24 | 914 | 318 | 813 | 600 | 608 | 692 | 1190 | 1-5/8 | 41 | 24 | 1-1/2 | M39 | 250 | 265 |
30 | 991 | 368 | 921 | 735 | 740 | 845 | 1996 | 1-1/2 | 38 | 369 | 1-3/8 | M36 | 290 | |
36 | 1172 | 483 | 1089 | 873 | 880 | 1010 | 2660 | 1-3/4 | 45 | 32 | 1-5/8 | M42 | 325 | |
42 | 1334 | 568 | 1245 | 1035 | 1045 | 1168 | 5515 | 1-7/8 | 48 | 36 | 1-3/4 | M45 | 360 | |
48 | 1511 | 629 | 1416 | 1179 | 1190 | 1327 | 6239 | 2 | 51 | 40 | 1-7/8 | M48 | 400 |
Class 600 Dimension
- Cast Steel Check Valve, Double Flanged Ends
- Dual Plates, Spring Loaded
- Horizontal or Vertical Lines
- Designed to API594.AP16D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL600 |
Class 600 Dimension
STUD/BOLTING DETAILS | |||||||||||||||
SIZE (in.) | L | D | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | ||||||||||
8 | 165 | 419 | 349 | 200 | 270 | 212 | 134 | 1-1/4 | 32 | 12 | 1-1/8 | M30 | 210 | 215 | |
10 | 213 | 508 | 432 | 250 | 324 | 266 | 234 | 1-3/8 | 35 | 16 | 1-1/4 | M33 | 230 | 235 | |
12 | 229 | 559 | 489 | 305 | 381 | 312 | 304 | 1-3/8 | 35 | 20 | 1-1/4 | M33 | 240 | 245 | |
14 | 273 | 603 | 527 | 337 | 416 | 355 | 490 | 1-1/2 | 39 | 20 | 1-3/8 | M36 | 260 | 265 | |
16 | 305 | 686 | 603 | 387 | 470 | 400 | 680 | 1-5/8 | 41 | 20 | 1-1/2 | M39 | 280 | 285 | |
18 | 362 | 743 | 654 | 438 | 533 | 450 | 978 | 1-3/4 | 44 | 20 | 1-5/8 | M42 | 295 | 300 | |
20 | 368 | 813 | 724 | 489 | 584 | 500 | 1297 | 1-3/4 | 44 | 24 | 1-5/8 | M42 | 310 | 315 | |
24 | 438 | 940 | 838 | 591 | 692 | 600 | 1554 | 2 | 52 | 24 | 1-7/8 | M48 | 350 | 360 | |
*26″and larger are available with ASMEIANSIB16.47end flanges,either Style A or Style B (formerly MSS SP-44 and API605). |
Class 900/1500 Dimension
- Cast Steel Check Valve, Double Flanged Ends
- Dual Plates, Spring Loaded
- Horizontal or Vertical Lines
- Designed to API594.AP16D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL900/1500 |
Class 900/1500 Dimension
CLASS 900 DIMENSION | |||||||||||||||
STUD/BOLTING DETAILS | |||||||||||||||
SIZE (in.) | L | D | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | ||||||||||
8 | 206 | 470 | 393.7 | 200 | 270 | 212 | 217 | 1-1/2 | 39 | 12 | 1-3/8 | M36 | 245 | 250 | |
10 | 241 | 545 | 469.9 | 250 | 324 | 266 | 330 | 1-1/2 | 39 | 16 | 1-3/8 | M36 | 260 | 265 | |
12 | 292 | 610 | 533.4 | 305 | 381 | 312 | 509 | 1-1/2 | 39 | 20 | 1-3/8 | M36 | 275 | 280 | |
14 | 356 | 640 | 558.8 | 337 | 413 | 355 | 765 | 1-5/8 | 42 | 20 | 1-1/2 | M39 | 295 | 305 | |
16 | 384 | 705 | 615.9 | 387 | 470 | 400 | 890 | 1-3/4 | 45 | 20 | 1-5/8 | M42 | 305 | 315 | |
18 | 451 | 785 | 685.8 | 438 | 533 | 450 | 1450 | 2 | 51 | 20 | 1-7/8 | M48 | 350 | 365 | |
20 | 451 | 855 | 749.3 | 487 | 584 | 496 | 1960 | 2-1/8 | 54 | 20 | 2 | M52 | 370 | 385 | |
24 | 495 | 1040 | 901.7 | 591 | 692 | 600 | 2351 | 2-5/8 | 69 | 20 | 2-1/2 | M64 | 470 | 490 | |
CLASS 1500 DIMENSION | |||||||||||||||
STUD/BOLTING DETAILS | |||||||||||||||
SIZE (in.) | L | D | D1 | D2 | D3 | D4 | W.T(kg) | HOLE | DIA. | NO. | DIA. | LENGTH | Unit:mm | ||
in | mm | in. | mm | RF | RJ | ||||||||||
8 | 206 | 483 | 393.7 | 200 | 270 | 212 | 283 | 1-3/4 | 45 | 12 | 1-5/8 | M42 | 315 | 325 | |
10 | 248 | 585 | 482.6 | 254 | 324 | 266 | 361 | 2 | 51 | 12 | 1-7/8 | M48 | 365 | 375 | |
12 | 305 | 675 | 571.5 | 305 | 381 | 312 | 637 | 2-1/8 | 54 | 16 | 2 | M52 | 400 | 415 | |
14 | 356 | 750 | 635 | 337 | 413 | 355 | 1097 | 2-3/8 | 61 | 16 | 2-1/4 | M56 | 435 | 455 | |
16 | 381 | 825 | 704.8 | 387 | 470 | 400 | 1152 | 2-5/8 | 67 | 16 | 2-1/2 | M64 | 480 | 505 | |
*26″and larger are available with ASME/ANSIB16.47end flanges,either Style A or Style B(formerly MSS SP-44 and API605). |
Hub Ends Dual Plate Check Valve
Class 600~2500 Dimension
- Cast Steel Check Valve, Hub Ends
- Dual Plates, Spring Loaded
- Horizontal or Vertical Lines
- Designed to API594.AP16D
Face to Face | API594/API 6D |
Wall Thickness | ASME B16.34 |
End Flange | NPS2~24:ASME B16.5* |
Class | ASME/ANSI CL600~CL2500 |
Class 600~2500 Dimension
SIZE (in.) | SEAT RING | A | B | D | E | F | W.T(kg) |
NO. | Unit:inch | ||||||
2 | 20 | 3.63 | 4.5 | 2.06 | 5.06 | 4.5 | 5 |
14 | 3.63 | 4.5 | 1.16 | 5.06 | 4.5 | 5 | |
3 | 27 | 5 | 4.5 | 3.06 | 6.88 | 5.25 | 9 |
25 | 5 | 4.5 | 2.67 | 6.88 | 5.25 | 9 | |
20 | 5 | 4.5 | 2.06 | 6.88 | 5.25 | 9 | |
4 | 40 | 6 | 5 | 2.06 | 8.13 | 6 | 11 |
34 | 6 | 5 | 3.69 | 8.13 | 6 | 11 | |
31 | 6 | 5 | 3.25 | 8.13 | 6 | 11 | |
25 | 6 | 5 | 2.67 | 8.13 | 6 | 15 | |
6 | 62 | 9.25 | 6.25 | 6.07 | 12 | 8.75 | 35 |
52 | 9.25 | 6.25 | 5.31 | 12 | 8.75 | 35 | |
46 | 9.25 | 6.25 | 4.75 | 12 | 8.75 | 35 | |
40 | 9.25 | 6.25 | 4.06 | 12 | 8.75 | 40 | |
8 | 82 | 11.5 | 8.13 | 8.25 | 14.5 | 9.88 | 72 |
76 | 11.5 | 8.13 | 7.75 | 14.5 | 9.88 | 72 | |
72 | 11.5 | 8.13 | 7.25 | 14.5 | 9.88 | 72 | |
62 | 11.5 | 8.13 | 6.07 | 14.5 | 9.88 | 83 | |
52 | 11.5 | 8.13 | 5.31 | 14.5 | 9.88 | 83 | |
10 | H97 | 13.63 | 9.75 | 9.88 | 17.63 | 12.75 | 110 |
H94 | 13.63 | 9.75 | 9.5 | 17.63 | 12.75 | 110 | |
H84 | 13.63 | 9.75 | 8.5 | 17.63 | 12.75 | 140 | |
H82X | 13.63 | 9.75 | 8.25 | 18.25 | 13.5 | 140 | |
H72 | 13.63 | 9.75 | 7.25 | 18.25 | 12.75 | 140 | |
H62 | 13.63 | 9.75 | 6.07 | 18.25 | 12.75 | 157 | |
H62X | 13.63 | 9.75 | 6.07 | 18.25 | 13.5 | 157 | |
12 | M120 | 16 | 12.5 | 12 | 20.25 | 14.5 | 177 |
M112 | 16 | 12.5 | 11.25 | 20.25 | 14.5 | 177 | |
M102 | 16 | 12.5 | 10.25 | 20.25 | 14.5 | 228 | |
M82 | 16 | 12.5 | 8.25 | 20.25 | 14.5 | 268 | |
M82X | 16 | 12.5 | 8.25 | 20.5 | 15.75 | 268 | |
*26″and largerare availablew with ASME/ANSI B16.47 end fla es,eitherStyle A or Style B(formeerly MSS SP-44 and API605). |
What is Dual Plate Check Valve?
Dual-Plate Check Valve Classification
Lug
Wafer
Flange
Butt Weld
Soft Seal
Metal Seal
How Does Dual Plate Check Valve Work?
Features and Benefits of Dual Plate Check Valve
Low Pressure Drop
Spring-Assisted Closing Mechanism
Cushioned Closing to Reduce Slamming
Non-Slam Design
Minimal Wear and Tear
Reduced Water Hammer
Applications of Dual Plate Check Valve
Versatility Across Material and System Configurations
Water System Applications
Petrochemical Applications
Hydrocarbon Applications
Air and Gas Applications
Metallurgical and Chemical Applications
Installation Instructions
Differences Between Dual Plate Check Valve And Swing Check Valve
Weight and Handling
Structural Design
Installation Orientation
Spring-Assisted Closure
Pressure Drops and Energy Losses
Non-Slamming Design
Water Hammering
Maintenance Requirements
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Specifications of Dual Plate Check Valve
Features of Dual Plate Check Valve
Anti-Slam Functionality
The anti-slam feature of Dual Plate Check Valves prevents the valve from slamming shut during flow stoppages. A spring mechanism controls the closing speed of the plates. This protects the piping system from shock waves and vibrations. No wonder this feature is essential in systems with sudden flow changes.
Dual Plate Mechanism
The NTVAL Dual Plate Check Valve uses a dual plate mechanism that provides better sealing compared to single plate designs. This mechanism evenly distributes pressure, reducing wear and tear. It also minimizes leakage risk, offering a dependable seal. This feature contributes to the valve's durability and performance.
Minimal Maintenance
Dual Plate Check Valves require minimal maintenance due to their simple design. The structure allows easy access to internal components, making inspections straightforward. This reduces downtime and maintenance costs. It's an efficient choice for long-term use in various industries.
Benefits of Dual Plate Check Valve
Reduced Water Hammer
One of the key benefits of Dual Plate Check Valves is their ability to reduce water hammer. The design of the valve allows for smoother operation, with the dual plates closing quickly yet softly when the flow stops. This helps to minimize the shock and noise associated with water hammer, protecting the piping system from potential damage. The reduction in water hammer contributes to the longevity of the system.
Enhanced System Efficiency
The Dual Plate Check Valve helps improve system efficiency. Its low-pressure drop design allows fluids to flow smoothly with minimal resistance. This reduces energy consumption, making the system more cost-effective to operate. For example, the valve's efficient design supports overall system performance.
Reliable Backflow Prevention
This valve provides reliable backflow prevention. For example, the quick response of the dual plates stops backflow immediately, protecting the system from damage. This benefit is crucial for maintaining the integrity of various industrial processes. Consistent backflow prevention helps avoid costly repairs and downtime.
Applications of Dual Plate Check Valve
Oil and Gas Industry
Power Generation
Chemical Processing Plants
3 Considerations When Buying Dual Plate Check Valve
01
Stainless Steel
02
Environmental Impact
03
Certification API607
Summary
Frequently Asked Questions
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