Swing Check Valve is a mechanical device that allows fluid (liquid or gas) to flow in one direction while preventing backflow in the opposite direction. This automatic valve operates without manual intervention, using the pressure of the fluid itself to open or close the valve. The primary components of a check valve include the valve body, a movable disc, and a sealing mechanism.
Swing Check Valve are simple, efficient, and reliable devices commonly used in piping systems to safeguard equipment, prevent contamination, and maintain proper flow direction. They are available in various types, including swing check valves, lift check valves, ball check valves, and dual-plate check valves, each tailored for specific applications.
Swing Check Valve is trusted across various industries for its precision, durability, and reliability. Explore its wide-ranging applications below:
Installed in pipelines to prevent reverse flow of oil, gas, or other fluids. Essential in preventing pressure surges and protecting sensitive equipment like compressors and separators.
Prevent backflow of water into the main supply lines. Used in pumping systems to protect the pumps from reverse flow when they are turned off.
Protects turbines, boilers, and heat exchangers by filtering cooling water and lubricants. Reduces the risk of fouling and enhances equipment longevity.Used in boiler feed lines and condensate systems to prevent backflow. Ensures the integrity of turbines and heat exchangers by maintaining proper flow direction.
Safeguards process lines by preventing reverse flow of chemicals, ensuring product integrity and safety. Handles a variety of aggressive and high-temperature fluids.
Maintains hygiene and prevents contamination by ensuring unidirectional flow in clean systems. Often used in sanitary-grade designs to comply with industry standards.
Protects ballast systems and cooling systems in ships. Ensures proper operation of bilge pumps and prevents reverse flooding.
Prevent backflow in heating, ventilation, and air conditioning systems, ensuring efficient performance. Commonly used in chilled water and condensate lines.
Installed in sprinkler systems to prevent water from flowing back into the main supply. Enhances safety by ensuring the system is always ready for operation.
The check valve can also be called as one-way valve and acts at preventing the medium in the pipeline from back-flow. It belongs to the category of automatic valve and is used mainly with the pipeline where the medium flows in one way in order to prevent any accident from happening. Along with different actions and working conditions, there are lift, swing, butterfly, diaphragm etc. several types and made of different materials, it can be separately used for water, steam, oil, nitric acid, acetic acid, oxidizing media, urea etc, multiple media.
ADVANCED TECHNOLOGY cast steel globe valves are designed and manufactured to provide maximum service life and dependability. All check valves are meet the design requirements of American Petroleum Institute Standard API 6D, BS 1868 and generally conform to American Society of Mechanical Engineers standard ASME B16.34. Valves are available in a complete range of body/bonnet material and trims.
Standard body/bonnet materials include grades of carbon, low alloy and stainless steels. For special applications they can be supplied in other grades of alloy and stainless steel, There's' a full ranged of trim materials to match any service. Optional packing and gasket materials are available for a full range of service conditions.
For 150Lb-8”, 300Lb-8”, 600Lb-6:, 900Lb/1500Lb/2500Lb-4” & Over
Bolted bonnet. Welding Bonnet and pressure seal cover in services requiring frequent cycling or with high pressure /temperature variations.
A choice of Flanged, RTJ flanged or Butt welding end for piping flexibility.
A Male and Female joint or Tongue and Groove joint is used 150Lb to 600Lb valves, Ring joint is used in the body bonnet connection in 900Lb & higher rated valves.
All external hinge pin swing check valves 12” and smaller are available with an optional outside lever and weight. Internal hinge available with all swing check valves.
Separate heavy duty. full ported rings for easy maintenance. Screwed or welded connection into body.
This design can be used to either dampen or assist closing of the
check valve disc depending on orientation. By using the Hydraulic
Control Unit to buffer action the disc, the valve opens at lower
flow rates.
| No | Part Name | ASTM Material | ||||
|---|---|---|---|---|---|---|
| Carbon Steel | Alloy Steel | Stainless Steel | ||||
| 1 | Body | A216-WCB | A352-LCB | A351-CF8 | A351-CF8M | |
| 2 | Cover | A216-WCB | A352-LCB | A217-WC6 | A351-CF8 | A351-CF8M |
| 3 | Disc" | WCB+Cr13 | WCB | WC6+HF | CF8 | CF8M |
| 4 | Arm | A216-WCB | A352-LCB | A217-WC6 | A351-CF8 | A351-CF8M |
| 5 | End Frame | A216-WCB | A352-LCB | A217-WC6 | A351-CF8 | A351-CF8M |
| 6 | Seat Ring | A105+cCr13 | A350-LF2 | A182-F11+HF | A276-304 | A276-316 |
| 7 | Hinge Pin | A276-420 | A276-420 | A276-304 | A276-304 | A276-316 |
| 8 | Disc Washer | Carbon Steel | A276-304 | 304 | 316 | |
| 9 | Disc Nut | Carbon Steel | A194-7 | A194-8 | A194-8 | |
| 10 | Disc Nut Pin | Carbon Steel | A276-420 | A276-304 | A276-316 | |
| 11 | Gasket | (Graphite+304)2 | (Graphite+316)2 | (Graphite+304)2 | (Graphite+304)2 | |
| 12 | Stud | A193-B7 | A320-L7 | A193-B16 | A193-B8 | A193-B8 |
| 13 | Nut | A194-2H | A194-4 | A194-7 | A194-8 | A194-8 |
| 14 | EyeBolt2 | Carbon Steel | ||||
| NPS | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 26 | 28 | 30 | 36 | in |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 650 | 700 | 750 | 900 | mm |
| L/L1(RF/BW) | 8.00 | 8.50 | 9.50 | 11.50 | 14.00 | 19.50 | 24.50 | 27.50 | 31.00 | 34.00 | 38.50 | 38.50 | 51.00 | 51.00 | 57.00 | 60.00 | 77.00 | in |
| 203 | 216 | 241 | 292 | 356 | 495 | 622 | 699 | 787 | 864 | 978 | 978 | 1295 | 1295 | 1484 | 1524 | 1956 | mm | |
| L2(RTJ) | 8.50 | 9.00 | 10.00 | 12.00 | 14.50 | 20.00 | 25.00 | 28.00 | 31.50 | 34.50 | 39.00 | 39.00 | 51.50 | -- | -- | -- | -- | in |
| 216 | 229 | 254 | 305 | 368 | 508 | 635 | 711 | 800 | 876 | 991 | 991 | 1308 | -- | -- | -- | -- | mm | |
| H | 6.00 | 6.50 | 6.88 | 8.00 | 11.50 | 13.88 | 15.38 | 17.00 | 18.75 | 20.62 | 22.88 | 24.62 | 34.75 | 37.00 | 37.00 | 38.62 | 48.00 | in |
| 152 | 165 | 175 | 204 | 293 | 353 | 390 | 432 | 475 | 525 | 582 | 627 | 883 | 940 | 940 | 980 | 1220 | mm | |
| Wt(kg) | 14 | 20 | 25 | 40 | 71 | 118 | 177 | 263 | 353 | 542 | 632 | 855 | 970 | 1600 | 1990 | 2760 | RF/RTJ | NW |
| NPS | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 26 | 28 | 30 | 36 | in |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 650 | 700 | 750 | 900 | mm |
| L/L1 (RF/BW) | 10.50 | 11.50 | 12.50 | 14.00 | 17.50 | 21.00 | 24.50 | 28.00 | 33.00 | 34.00 | 38.50 | 40.00 | 53.00 | 53.00 | 59.00 | 62.75 | 82.00 | in |
| 267 | 292 | 318 | 356 | 445 | 533 | 622 | 711 | 838 | 864 | 978 | 1016 | 1346 | 1346 | 1499 | 1594 | 2083 | mm | |
| L2 (RTJ) | 11.12 | 12.12 | 13.12 | 14.62 | 18.12 | 21.62 | 25.00 | 28.62 | 33.62 | 34.62 | 39.12 | 40.75 | 53.88 | 54.00 | 60.00 | 63.75 | -- | in |
| 283 | 308 | 333 | 371 | 460 | 549 | 638 | 727 | 854 | 879 | 994 | 1035 | 1368 | 1372 | 1524 | 1619 | -- | mm | |
| H | 6.00 | 6.50 | 6.88 | 8.00 | 11.50 | 13.88 | 15.38 | 17.00 | 18.75 | 20.62 | 22.88 | 24.62 | 34.75 | 35.88 | 37.00 | 38.62 | 48.00 | in |
| 152 | 165 | 175 | 204 | 292 | 353 | 390 | 432 | 475 | 525 | 582 | 627 | 883 | 910 | 940 | 980 | 1220 | mm | |
| Wt(kg) | 16 | 23 | 29 | 46 | 82 | 136 | 204 | 302 | 405 | 625 | 730 | 985 | 1115 | 1465 | 1840 | 2290 | 3180 | RF/RTJ |
| 11 | 13 | 18 | 31 | 61 | 103 | 155 | 245 | 315 | 503 | 593 | 812 | 895 | 1205 | 1525 | 1895 | 2396 | NW |
| NPS | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | in |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | mm |
| L/L1 (RF/BW) | 11.50 | 13.00 | 14.00 | 17.00 | 22.00 | 26.00 | 31.00 | 33.00 | 35.00 | 39.00 | 43.00 | 47.00 | 55.00 | in |
| 292 | 330 | 356 | 432 | 559 | 660 | 787 | 838 | 889 | 991 | 1092 | 1194 | 1397 | mm | |
| L2 (RTJ) | 11.62 | 13.12 | 14.12 | 17.12 | 22.12 | 26.12 | 31.12 | 33.12 | 35.12 | 39.12 | 43.12 | 47.25 | 55.38 | in |
| 295 | 333 | 359 | 435 | 562 | 664 | 791 | 841 | 892 | 994 | 1095 | 1200 | 1407 | mm | |
| H | 7.50 | 8.00 | 8.75 | 10.00 | 14.50 | 17.50 | 19.25 | 21.38 | 23.38 | 25.75 | 28.75 | 31.00 | 43.50 | in |
| 190 | 205 | 222 | 255 | 368 | 445 | 490 | 540 | 595 | 655 | 730 | 785 | 1105 | mm | |
| Wt(kg) | 24 | 35 | 44 | 70 | 125 | 207 | 310 | 460 | 615 | 945 | 1105 | 1495 | 1695 | RF/RTJ |
| 16 | 19 | 26 | 44 | 87 | 147 | 220 | 350 | 452 | 720 | 845 | 1160 | 1280 | BW |
| NPS | 2 | 21/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | in |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | mm |
| L/L1 (RF/BW) | 14.50 | 16.50 | 15.00 | 18.00 | 24.00 | 29.00 | 33.00 | 38.00 | 40.50 | 44.50 | 48.00 | 52.00 | -- | in |
| 368 | 419 | 381 | 457 | 610 | 737 | 838 | 965 | 1029 | 1130 | 1219 | 1321 | -- | mm | |
| L2 (RTJ) | 14.62 | 16.62 | 15.12 | 18.12 | 24.12 | 29.12 | 33.12 | 38.12 | 40.88 | 44.88 | 48.50 | 52.50 | -- | in |
| 371 | 422 | 384 | 460 | 613 | 740 | 841 | 968 | 1038 | 1140 | 1232 | 1334 | -- | mm | |
| H | 9.50 | 10.00 | 11.00 | 12.50 | 18.12 | 22.00 | 24.00 | 26.50 | 29.38 | 32.00 | 33.50 | 38.75 | -- | in |
| 240 | 256 | 278 | 320 | 460 | 560 | 610 | 675 | 745 | 815 | 850 | 985 | -- | mm | |
| Wt(kg) | 37 | 54 | 68 | 109 | 195 | 321 | 481 | 711 | 956 | 1468 | 1870 | 2316 | -- | RT/RTJ |
| 37 | 54 | 68 | 109 | 195 | 321 | 481 | 711 | 956 | 1468 | 1870 | 2316 | -- | BW |
| NPS | DN | L1/BW | L2 (RTJ) | H | WT(KG) | L1/BW | L2 (RTJ) | H | WT(KG) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 50 | 216 | 14.62 | 371 | 9.50 | 240 | 40 | 29 | 279 | 17.88 | 454 | 10.75 | 275 | 50 | 35 | ||
| 2 1/2 | 65 | 254 | 16.62 | 422 | 10.00 | 256 | 63 | 47 | 330 | 20.25 | 514 | 13.25 | 335 | 76 | 55 | ||
| 3 | 80 | 305 | 18.62 | 473 | 13.00 | 330 | 70 | 49 | 368 | 23.00 | 584 | 13.75 | 350 | 85 | 68 | ||
| 4 | 100 | 406 | 21.62 | 549 | 14.75 | 375 | 115 | 84 | 457 | 26.88 | 683 | 15.12 | 385 | 165 | 115 | ||
| 6 | 150 | 559 | 28.00 | 711 | 18.88 | 480 | 250 | 152 | 610 | 36.50 | 927 | 19.50 | 495 | 460 | 225 | ||
| 8 | 200 | 711 | 33.12 | 841 | 23.50 | 595 | 470 | 310 | 762 | 40.88 | 1038 | 24.62 | 625 | 900 | 580 | ||
| 10 | 250 | 864 | 39.38 | 1000 | 26.00 | 660 | 740 | 470 | 914 | 50.88 | 1292 | 28.00 | 712 | 1300 | 860 | ||
| 12 | 300 | 991 | 45.12 | 1146 | 29.12 | 740 | 1100 | 710 | 1041 | 56.88 | 1445 | 35.62 | 905 | 1800 | 1150 | ||
| 14 | 350 | 1067 | 50.25 | 1276 | 30.88 | 785 | 1410 | 910 | -- | -- | -- | -- | -- | -- | -- | ||
| 16 | 400 | 1194 | 55.38 | 1407 | 32.88 | 835 | 1600 | 1100 | -- | -- | -- | -- | -- | -- | -- | ||
| in | mm | in | mm | in | mm | in | mm | RF/RTJ | BW | in | mm | in | mm | in | mm | RF/RTJ | BW |
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