API Swing Check Valve
Design acc.to API6D,API594, BS1868
Face-to-Face acc. to ASME B16.10
Flange acc. to ASME B16.5
Butt Weld acc. to ASME B16.25
Test acc. to API 598
Fire Proof acc. to API607
Anti-H2S acc. to NACE MR-0175
Size from 2” to 36”
Pressure from 150LB to 2500LB
With Swing Type and Lifting Type
Bolted cover, swing type disc
Threaded or welded seat ring
ASTM A216 WCB, A217 WC6, A351CF8, A351CF8M,
A351 CF3, A351 CF3M, A351 CN7M
Materials list | ||
NO. | Part name | Material |
12 | Disc nut | Carbon steel/stainless steel |
11 | Washer | Carbon steel/stainless steel |
10 | Hinge pin | Carbon steel/stainless steel |
09 | Seat ring | CS+SS/SS/SS+STL(see body materials) |
08 | Disc | CS+SS/SS/SS+STL(see body materials) |
NO. | Part name | WCB | LCB | WC6 | WC9 |
07 | Bolt stud&nut | A193 Gr B7/A194 Gr 2H | A320 Gr L7/A194 Gr 4 | A193 Gr B16/A194 Gr 4/7 | A193 Gr B16/A194 Gr 4/7 |
06 | Cover bolt&nut | A193 Gr B7/A194 Gr 2H | A320 Gr L7/A194 Gr 4 | A193 Gr B16/A194 Gr 4/7 | A193 Gr B16/A194 Gr 4/7 |
05 | Gasket | Spiral wound/soft iron | Spiral wound/soft iron | spiral wound/SS304 | spiral wound/SS304 |
04 | Hinge yoke | A216 Gr WCB | A352 Gr LCB | A217 Gr WC6 | A217 Gr WC9 |
03 | Hinge | A216 Gr WCB | A352 Gr LCB | A217 Gr WC6 | A217 Gr WC9 |
02 | Cover | A216 Gr WCB | A352 Gr LCB | A217 Gr WC6 | A217 Gr WC9 |
01 | Body | A216 Gr WCB | A352 Gr LCB | A217 Gr WC6 | A217 Gr WC9 |
NO. | Part name | C5 | C12 | CF8 | CF8M |
07 | Bracket stud&nut | A193 Gr B16/A194 Gr 4 | A193 Gr B16/A194 Gr 4/7 | A193 Gr B8/A194 Gr 8 | A193 Gr B8M/A194 Gr 8M |
06 | Cover bolt&nut | A193 Gr B16/A194 Gr 4 | A193 Gr B17/A194 Gr 4/7 | A193 Gr B8/A194 Gr 8 | A193 Gr B8M/A194 Gr 8M |
05 | Gasket | Spiral wound/soft iron | Spiral wound/SS304 | spiral wound/SS304 | spiral wound/SS316 |
04 | Hinge yoke | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
03 | Hinge | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
02 | Cover | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
01 | Body | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
Higher sizes are with dashpot arrangement to control the movement of the disc order to avoid slamming and water hammer.