Investment Casting & Industrial Valves 
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ANSI Flanged Swing Check Valve (316 SS Check Valve)
- Nominal Diameter: 1/2"-24"
- Materials: 316, CF8M, 1.4408, WCB, 304, CF8, etc.
- Pressure Rating: 150Lb
- Inspection & Testing: API 598
- Surface Treatment: Pickling, Passivation, Polishing (or as per customer request)
- Operating Temperature: ≤ 120°C
- Suitable Media: Water, Steam, Oil, Gas, Acids, Alkalis, etc.
Applicable Standards
| Design | Material |
| Pressure-Temperature Rating | ASME B16.3 |
| Face to Face | ASME B16.10 |
| Flange Dimensions | ASME B16.5 |
| Inspection &Testing | API 598 |
| Body Material | A351-CF8; CF8M CF3; CF3M; A216-WCB |
Dimensions (mm)
| Size (in) | d | L | D | C | g | T | t | H | n-Ø |
| 150Lb | |||||||||
| 1/2" | 15 | 108 | 89 | 60.5 | 35 | 12 | 1.6 | - | 4-15 |
| 3/4" | 20 | 117 | 98 | 70 | 43 | 12 | 1.6 | - | 4-15 |
| 1" | 25 | 127 | 108 | 79.5 | 51 | 12 | 1.6 | - | 4-15 |
| 1 1/4" | 32 | 140 | 117 | 89 | 64 | 13 | 1.6 | - | 4-15 |
| 1 1/2" | 40 | 165 | 127 | 98.5 | 73 | 15 | 1.6 | - | 4-15 |
| 2" | 50 | 203 | 152 | 120.5 | 92 | 16 | 1.6 | 161 | 4-19 |
| 2 1/2" | 65 | 216 | 178 | 139.5 | 105 | 18 | 1.6 | 180 | 4-19 |
| 3" | 80 | 241 | 190 | 152.5 | 127 | 19 | 1.6 | 190 | 4-19 |
| 4" | 100 | 292 | 229 | 190.5 | 157 | 24 | 1.6 | 203 | 8-19 |
| 5" | 125 | 356 | 254 | 216 | 186 | 24 | 1.6 | 229 | 8-22 |
| 6" | 150 | 406 | 279 | 241.5 | 216 | 26 | 1.6 | 257 | 8-22 |
| 8" | 200 | 495 | 343 | 298.5 | 270 | 29 | 1.6 | 292 | 8-22 |
| 10" | 250 | 622 | 406 | 362 | 324 | 31 | 1.6 | 355 | 12-25 |
| 12" | 300 | 698 | 483 | 432 | 381 | 32 | 1.6 | 396 | 12-25 |
| 14" | 350 | 787 | 533 | 476 | 413 | 35 | 1.6 | 445 | 12-29 |
| 16" | 400 | 914 | 597 | 540 | 470 | 37 | 1.6 | 490 | 16-29 |
| 18" | 450 | 978 | 635 | 578 | 533 | 40 | 1.6 | 520 | 16-32 |
| 20" | 500 | 978 | 698 | 635 | 584 | 43 | 1.6 | 546 | 20-32 |
| 24" | 600 | 1295 | 813 | 749.3 | 692 | 49 | 1.6 | 880 | 20-35 |
Materials
| Body | A351-CF8M |
| Disc | A351-CF8M |
| Nut | A194-2H |
| Washer | SS304 |
| Hinge | A351-CF8M |
| Eyebolt Pin | SS316 |
| Bonnet Nut | A194-2H |
| Gasket | PTFE+304 |
| Bonnet | A351-CF8M |
| Nameplate | Aluminum |
| Bonnet Bolt | A193-B8 |
| Washer | PTFE+304 |
Investment Casting & Valve Manufacturing Since 1987
At SDPLDL, we are a trusted manufacturer specializing in precision investment casting and industrial valves for global markets. We operate our own manufacturing facility featuring over 200 sets of advanced manufacturing equipment and an in-house testing center equipped with 16-ton dynamic balancing machines. Our integrated manufacturing capabilities allow us to seamlessly produce precision investment casting valves, custom stainless steel large-diameter valves, and slurry valves under strict compliance with ISO 9001 standards.
