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China Suppliers Factory Cast Steel Flanged Swing Check Valve - Size Range 1/2-24/DN15-DN600
Product Details
The cast steel swing check valve disc swings freely with the flow direction and closes automatically when flow reverses, protecting pumps, compressors, and other critical equipment from damage.
Working Principle
When fluid flows in the forward direction, pressure pushes the disc open, allowing smooth and unobstructed flow. Once the flow stops or reverses, gravity and back pressure cause the disc to swing back to the seat, forming a tight seal and effectively preventing backflow—without the need for external power or manual operation.
Key Features
- Reliable backflow prevention
- Low flow resistance with full-bore design
- Suitable for high pressure and high temperature service
- Strong sealing performance and long service life
- Simple internal structure for easy maintenance
- Designed for horizontal pipeline installation
Specification
| NO. | Part Name | Material |
|---|---|---|
| 1 | Body | C5/C12/CF8/CF8M |
| 2 | Cover | C5/C12/CF8/CF8M |
| 3 | Hinge | C5/C12/CF8/CF8M |
| 4 | Hinge yoke | C5/C12/CF8/CF8M |
| 5 | Gasket | C5/C12/CF8/CF8M |
| 6 | Cover stud&nut | C5/C12/CF8/CF8M |
| 7 | Bracket stud&nut | WCB/LCB/WC6/WC9 |
| 8 | Disc | CS/SS/SS+Stl(see body materials) |
| 9 | Seating ring | CS/SS/SS+Stl(see body materials) |
| 10 | Hinge pin | Carbon steel/stainless steel |
| 11 | Washer | Carbon steel/stainless steel |
| 12 | Disc nut | Carbon steel/stainless steel |
Dimensions
Class 150 Dimensions
| Size (inch) | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L,L1-RF,BW (mm) | 203 | 216 | 214 | 292 | 330 | 356 | 495 | 622 | 699 | 787 | 864 | 978 | 978 | 1295 |
| L2-RTJ (mm) | 216 | 229 | 254 | 305 | 343 | 368 | 508 | 635 | 717 | 800 | 876 | 991 | 991 | 1308 |
| H (mm) | 155 | 190 | 200 | 225 | 245 | 260 | 350 | 390 | 410 | 435 | 530 | 570 | 625 | 675 |
| WT.(approx) (Kg) | 16 | 25 | 34 | 46 | 75 | 89 | 120 | 220 | 337 | 471 | 575 | 788 | 916 | 1275 |
Class 300 Dimensions
| Size (inch) | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L,L1-RF,BW (mm) | 267 | 292 | 318 | 355 | 400 | 440 | 533 | 622 | 711 | 838 | 863 | 977 | 1016 | 1346 |
| L2-RTJ (mm) | 283 | 308 | 333 | 371 | 416 | 460 | 549 | 638 | 727 | 854 | 879 | 994 | 1036 | 1368 |
| H (mm) | 180 | 200 | 225 | 240 | 275 | 310 | 370 | 410 | 440 | 500 | 545 | 605 | 675 | 785 |
| WT.(approx) (Kg) | 26 | 32 | 53 | 73 | 110 | 157 | 234 | 384 | 450 | 650 | 800 | 970 | 1350 | 2210 |
Class 600 Dimensions
| Size (inch) | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L,L1-RF,BW (mm) | 292 | 330 | 356 | 432 | 508 | 559 | 660 | 787 | 838 | 889 | 991 | 1092 | 1194 |
| L2-RTJ (mm) | 295 | 333 | 359 | 435 | 511 | 562 | 664 | 791 | 841 | 892 | 994 | 1095 | 1200 |
| H (mm) | 190 | 215 | 250 | 260 | 310 | 350 | 420 | 490 | 525 | 580 | 630 | 690 | 810 |
| WT.(approx) (Kg) | 33 | 49 | 62 | 95 | 120 | 195 | 360 | 465 | 725 | 875 | 1075 | 1475 | 1900 |
Class 900 Dimensions
| Size (inch) | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|
| L,L1-RF,BW (mm) | 368 | 419 | 381 | 457 | 559 | 610 | 737 | 838 | 965 | 1029 |
| L2-RTJ (mm) | 371 | 422 | 384 | 460 | 562 | 613 | 740 | 841 | 968 | 1038 |
| H (mm) | 195 | 235 | 260 | 275 | 320 | 370 | 435 | 520 | 530 | 580 |
| WT.(approx) (Kg) | 55 | 70 | 90 | 135 | 165 | 295 | 525 | 900 | 1075 | 1225 |
Frequently Asked Questions (FAQ)
What is the main function of the cast steel swing check valve?
It allows fluid to flow in the forward direction and closes automatically when flow reverses, effectively protecting pumps, compressors, and other critical equipment from backflow damage.
Does this valve require external power to operate?
No, it operates automatically. Gravity and back pressure cause the disc to swing back to the seat to form a tight seal, requiring no external power or manual operation.
What pipeline orientation is this valve designed for?
This swing check valve features a specific design optimized for horizontal pipeline installation.
What materials are available for the valve body?
The valve body is available in multiple high-quality materials, including C5, C12, CF8, CF8M, WCB, LCB, WC6, and WC9, depending on your specific temperature and pressure requirements.
What pressure classes and sizes do you offer?
We manufacture these valves across several pressure ratings including Class 150, Class 300, Class 600, and Class 900, with sizes ranging from 2 inches up to 24 inches.
Is the valve easy to maintain?
Yes, it features a simple internal structure that ensures easy maintenance while providing a long service life and strong sealing performance.
Product Packaging
01020304