qilong valve certficate

Cast Steel Swing Check Valve

class 150~1500 swing check valve

Size: 2"-30"

Pressures: ANSI 150LB-2500LB

Material:WCB.WCC.WC6.WC9.C5.C12.LCB.LCC.CF8.CF8M.CF3.CF3M.CF8C.CN7M

End: RF, RTJ, BW

Features: Bolted Cover, Swing Type Disc,Renewable Seat Rings, Low Emission Cryogentic, Full Bore

Standard Features
Design and Manufacture ANSI B16.34,API600,API6D,BS11868
Face to face(end to end) ANSI B16.10,API6D
Flanged connection 2"~30" to ANSIB16.5,26"~36" to MSS-SP-44 to API605
Butt welded end ANSIB16.25
Test and inspection API598,API6D

 

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.
CLASS 150~1500 swing check valve

Dimensions
Class 150
Size inch 2 2-1/2 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

 

Dimensions
Class 300
Size inch 2 2-1/2 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

 

Dimensions
Class 600
Size inch 2 2-1/2 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

 

Dimensions
Class 900
Size inch 2 2-1/2 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