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MSS SP-71 CLASS 125 CAST IRON AIR CUSHION SWING CHECK VALVE

MSS SP-71 CLASS 125 CAST IRON AIR CUSHION SWING CHECK VALVE

MSS SP-71 CLASS 125 CAST IRON AIR CUSHION SWING CHECK VALVE details:

1.size:DN50-DN600;2’’-24’’
2.Medium:water
3.Standard:EN12334/BS5153/MSS SP-71/AWWA C508
4.Pressure:CLASS 125-300/PN10-25/200-300PSI
5.Material:CI,DI
6.Type:wafer,swing

TECHNICAL REQUIREMENT :
    ● Design and Manufacture  Conform to MSS SP-71
    ● Flange dimensions  Conform to ASME B16.1
    ● Face to Face  dimensions Conform to ASME B16.10
    ● Testing Conform to  MSS SP-71

 

 

Materials of parts
No. Part Name Material
1 BODY ASTM A126-B
2 SEAT RING ASTM B62 C83600
3 DISC ASTM A126-B
4 CYLINDER APPARATUS ASSEMBLY
5 DISC RING ASTM B62 C83600
6 HINGE ASTM A536 65-45-12
7 STEM ASTM A276 410
8 BONNET ASTM A126-B
9 LEVER CARBON STEEL
10 WEIGHT CAST IRON

 

Dimensions data (mm)

NPS 8 10 12 14 16 18 20 24
Dn 203 254 305 356 406 457 508 610
L 495.3 622.3 698.5 787.4 914.4 965 1016 1219
D 343 406 483 533 597 635 699 813
D1 298.5 362 431.8 476.3 539.8 577.9 635 749.3
b 28.5 30.2 31.8 35 36.6 39.6 42.9 47.8
n-d 8-22 12-25 12-25 12-29 16-29 16-32 20-32 20-35
H 332 383 425 450 512 702 755 856

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