WB-179 API Flanged Swing Check Valve
A check valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem.
Main Parts & Materials
| 1 | Body | A216 WCB | 6 | Connector | A216 WCB |
| 2 | Seat | A105 | 7 | Gasket | Graphite+SS304 |
| 3 | Disc | A216 WCB | 8 | Bonnet | A216 WCB |
| 4 | Arm | A216 WCB | 9 | Stud | A193 B7 |
| 5 | Pin | A182 F6a | 10 | Nut | A194 2H |
Main Dimensions
| Class | NPS | DN | L | D | D1 | D2 | b | Z-d | H | WT(kg) |
| 150 | 2" | 50 | 203 | 157 | 120.7 | 92 | 19.5 | 4-19 | 161 | 17 |
| 21/2" | 65 | 216 | 178 | 139.7 | 105 | 22.5 | 4-19 | 180 | 23 | |
| 3" | 80 | 241 | 190.5 | 152.4 | 127 | 24 | 4-19 | 190 | 33 | |
| 4" | 100 | 292 | 229 | 190.5 | 157.2 | 24 | 8-19 | 220 | 44 | |
| 6" | 150 | 356 | 279 | 241.5 | 216 | 25.5 | 8-22.5 | 257 | 78 | |
| 8" | 200 | 495 | 343 | 298.5 | 270 | 29 | 8-22.5 | 292 | 137 | |
| 10" | 250 | 622 | 406 | 362 | 324 | 30.5 | 12-25 | 350 | 207 | |
| 12" | 300 | 698 | 483 | 432 | 381 | 32 | 12-25 | 298 | 279 | |
| 14" | 350 | 787 | 533 | 476.8 | 413 | 35 | 12-29 | 445 | 387 | |
| 16" | 400 | 864 | 597 | 539.8 | 470 | 37 | 16-29 | 490 | 446 | |
| 18" | 450 | 978 | 635 | 577.8 | 533 | 40 | 16-32 | 520 | 621 | |
| 20" | 500 | 978 | 698 | 635 | 584 | 43 | 20-32 | 546 | 770 | |
| 24" | 600 | 1295 | 813 | 749.3 | 692 | 48 | 20-35 | 880 | 970 | |
| 300 | 2" | 50 | 267 | 165 | 127 | 92 | 22.5 | 8-19 | 179.5 | 20 |
| 21/2" | 65 | 292 | 190 | 150 | 105 | 25 | 8-22 | 190 | 24 | |
| 3" | 80 | 318 | 210 | 168 | 127 | 29 | 8-22.5 | 212.4 | 40 | |
| 4" | 100 | 356 | 254 | 200 | 157 | 32 | 8-22.5 | 246 | 51 | |
| 6" | 150 | 445 | 317.5 | 269.7 | 216 | 37 | 12-22.5 | 292 | 90 | |
| 8" | 200 | 533 | 381 | 330 | 270 | 41.5 | 12-25.5 | 328 | 175 | |
| 10" | 250 | 622 | 444.5 | 387 | 324 | 48 | 16-28.5 | 378.6 | 210 | |
| 12" | 300 | 711 | 521 | 451 | 381 | 51 | 16-32 | 420 | 286 | |
| 14" | 350 | 838 | 584 | 514 | 413 | 54 | 20-32 | 470 | 400 | |
| 16" | 400 | 864 | 648 | 572 | 470 | 57 | 20-35 | 530 | 550 | |
| 18" | 450 | 978 | 711 | 629 | 533 | 60 | 24-35 | 584 | 700 | |
| 20" | 500 | 1016 | 775 | 686 | 584 | 64 | 24-35 | 610 | 860 | |
| 24" | 600 | 1346 | 914 | 813 | 692 | 70 | 24-41 | 860 | 1931 | |
| 600 | 2" | 50 | 292 | 165 | 127 | 92 | 25 | 8-19 | 203 | 34 |
| 21/2" | 65 | 330 | 190 | 150 | 105 | 29 | 8-22 | 229 | 45 | |
| 3" | 80 | 356 | 210 | 168 | 127 | 32 | 8-22 | 235 | 63 | |
| 4" | 100 | 432 | 273 | 216 | 157 | 38 | 8-25 | 286 | 114 | |
| 6" | 150 | 559 | 356 | 292 | 216 | 48 | 8-29 | 330 | 207 | |
| 8" | 200 | 660 | 419 | 349 | 270 | 56 | 12-29 | 381 | 387 | |
| 10" | 250 | 787 | 508 | 432 | 324 | 64 | 12-32 | 457 | 580 | |
| 12" | 300 | 838 | 559 | 489 | 381 | 67 | 16-35 | 584 | 778 | |
| 14" | 350 | 889 | 603 | 527 | 413 | 70 | 20-38 | 635 | 9869 | |
| 16" | 400 | 991 | 686 | 603 | 470 | 76 | 20-41 | 684 | 1380 |
Company Overview
Zhejiang Wenbao Valve Co.,Ltd was established in 1985. The main products range are as following: Fully Welded Ball Valve,1PC/2PC/3PC Flanged Ball Valve, Threaded Ball Valve, Mini Ball Valve, High Pressure Ball Valve, Pneumatic Ball Valve, Electric Ball Valve, Sanitary ball valve, Ball valve with mounting pad and other valves like gate, globe, check valves and Strainer, etc. Main material include: Stainless steel, Cast Steel, Forged Steel and Brass, etc. The products manufactured as per API, ANSI, JIS, ISO, BS, JB and GB, and have CAD valve design and quality testing center. The products are widely used in chemical industry, oil, metallurgy, light industry, electric power, food, pharmacy, civil industry, fiber industry, liquefied natural gas, liquefied petroleum gas, steel mills, heating pipes, etc. Our company passed the ISO 9001:2008, Standards Organization of Nigeria(SON), International Quality Award Certificate, Manufacture License of Special Equipment, KC of South Korea,CE of Europe, etc.
