ANSI/ASME B16.47 Series A Flange / MSS SP-44 Flange Class 900LBS Specification

ANSI/ASME B16.47 Series A flange in class 900lbs contain weld neck flange and blind flange.The flange sealing face can be raised face(RF) and ring type joint(RTJ).We can supply carbon steel,stainless steel,alloy steel Class 900LBS ANSI/ASME B16.47 series A flanges.

The class 900LBS ANSI/ASME B16.47 Series A weld neck flange and blind flange specification as follows:

ANSI ASME B16.47 Series A-Flange MSS SP44 Flange class 900lbs

ANSI ASME B16.47 Series A-Flange MSS SP44 Flange class 900lbs

Pipe Flange Data Hub Data Raised Face Drilling Data Radius
Nominal Pipe Size A C D E F G H I J R
Overall Diameter WNF Flange Thickness min Blind Flange Thickness min Overall Length WNF Diameter at Weld Bevel Hub Diameter Face Diameter Number of Holes Bolt Hole Diameter Diameter of Circle of Holes Fillet
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
26 42.75 1085.9 5.50 139.70 6.31 160.27 11.25 285.75 26.00 660.40 30.50 774.70 29.50 749.30 20 2.88 73.15 37.50 952.50 0.44 11.18
28 46.00 1168.4 5.62 142.75 6.75 171.45 11.75 298.45 28.00 711.20 32.75 831.85 31.50 800.10 20 3.12 79.25 40.25 1022.4 0.50 12.70
30 48.50 1231.9 5.88 149.35 7.18 182.37 12.25 311.15 30.00 762.00 35.00 889.00 33.75 857.25 20 3.12 79.25 42.75 1085.9 0.50 12.70
32 51.75 1314.5 6.25 158.75 7.62 193.55 13.00 330.20 32.00 812.80 37.25 946.15 36.00 914.40 20 3.38 85.85 45.50 1155.7 0.50 12.70
34 55.00 1397.0 6.50 165.10 8.06 204.72 13.75 349.25 34.00 863.60 39.62 1006.4 38.00 965.20 20 3.62 91.95 48.25 1225.6 0.56 14.22
36 57.50 1460.5 6.75 171.45 8.44 214.38 14.25 361.95 36.00 914.40 41.88 1063.8 40.25 1022.4 20 3.62 91.95 50.75 1289.1 0.56 14.22
38 57.50 1460.5 7.50 190.50 8.50 215.90 13.88 352.55 38.00 965.20 42.25 1073.2 43.25 1098.6 20 3.62 91.95 50.75 1289.1 0.75 19.05
40 59.50 1511.3 7.75 196.85 8.81 223.77 14.31 363.47 40.00 1016.0 44.38 1127.3 45.75 1162.1 24 3.62 91.95 52.75 1339.9 0.81 20.57
42 61.50 1562.1 8.12 206.25 9.12 231.65 14.62 371.35 42.00 1066.8 46.31 1176.3 47.75 1212.9 24 3.62 91.95 54.75 1390.7 0.81 20.57
44 64.88 1648.0 8.44 214.38 9.56 242.82 15.38 390.65 44.00 1117.6 48.62 1235.0 50.00 1270.0 24 3.88 98.55 57.62 1463.6 0.88 22.35
46 68.25 1733.6 8.88 225.55 10.06 255.52 16.18 410.97 46.00 1168.4 50.88 1292.4 52.50 1333.5 24 4.12 104.65 60.50 1536.7 0.88 22.35
48 70.25 1784.4 9.19 233.43 10.38 263.65 16.50 419.10 48.00 1219.2 52.88 1343.2 54.50 1384.3 24 4.12 104.65 62.50 1587.5 0.94 23.88

Notes:

  • ASME B16.47 Series A flanges (> NPS 26) are MMS SP-44 flanges. MSS SP-44 also covers NPS 12 to NPS 24 flanges which are equivalent to ASME B16.5. MSS SP-44 is the only source for the NPS 22 flange dimensions above.
  • Class 900 Series A dimensions at NPS 38 and larger also apply to Class 900 Series B flanges.
  • Dimension B is to be specified by the purchaser. It corresponds to the pipe inside diameter.
  • Flat face flanges may be provided at full thickness, C + raised face, or with raised face removed (the latter is nonstandard).
  • WNF = Weld Neck Flange.
  • The large end of the hub may be straight or tapered.

Types of ANSI/ASME B16.47 Series A Flanges:

Types of ANSI/ASME B16.47 Series B Flanges:

Materials for ANSI/ASME B16.47 series A flanges/MSS SP-44 flange Class 900LBS:

Carbon steel: ASTM A105,A350 LF2,SS400,P235GH,P250GH,C22.8,Q235,20#,16Mn.

Stainless steel: ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.

Alloy steel: ASTM A694 F42,F46,F52,F56,F60,F65,F70,A182 F5,F9,F91,F12,F11,F22 etc.

Haihao Group manufacture forged flanges more than 30 years,which contain weld neck flange,blind flange,flat flange,lap joint flange,slip on flange,threaded flange,socket weld flange,orifice flange,spectacle blind flange,long weld neck flange,reducing flange,rolled forging ring flange,flangeolet,tube sheet,anchor flange,non standard flange(custom flange).

We supply flanges according to international standards such as ANSI/ASME B16.5,B16.47,B16.48,AWWA C207,API 6A/6B/6BX,DIN 2527,DIN 2573,DIN 2576,DIN 2631,DIN 2632,DIN 2633,DIN 2634,DIN 2635,DIN 2566,DIN 2642,EN 1092,BS 4504,JIS B2220,GOST 12820,GOST 12821,SABS 1123,AS 1219 etc.

If you want to know more about our forged flange products,please email us:sales@haihaogroup.com

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