铸铁止回阀,125LB  
 
Application
Design According to MSS · SP-71
Pressure/Temperature Rating:ANSI B 16.1
Face to Face Dimensions:ANSI B 16.10
Flange End Dimensions: ANSI B 16.1
Wall Thickness:ANSI B 16.1
Valves Tested According to API 598
 
Main Parts and Materials
Number Part Name Material 
1 Body ASTM A126B
2 Seat Ring Bronze
Brass
3 Disc Ring Brass/Bronze
EPDM/NBR
4 Disc ASTM A126B
5 Hanger ASTM A536 65-45-12
6 Hanger Pin Stainless Steel
8 Cover Gasket Graphite With Soft Steel
9 Cover ASTM A126B
 
Main Dimensions
Norminal diameter L D D1 b n-d H W.T
40 165.1 127 98.6 14.2 4-16 110 10.5
50 203.2 152 120.7 15.8 4-19 130 12.5
65 215.9 178 139.7 17.5 4-19 140 17.3
80 241.3 191 152.4 19 4-19 150 24.5
100 292.1 229 190.5 23.9 8-19 160 37.5
125 330.2 254 215.9 23.9 8-22 190 41
150 355.6 279 241.3 25.4 8-22 250 120
200 495.3 343 298.5 28.5 8-22 250 120
250 622.3 406 362 30.2 12-25 310 198
300 698.5 483 431.8 31.8 12-25 340 282
350 787.4 533 476.3 35 12-29 450 350
400 914.4 597 539.8 36.6 16-29 520 430
450 914 635 577.9 39.6 16-32 550 638
500 1016 699 635 42.9 20-32 590 705