ASME B16.47 Series A (MSS SP-44) Flanges Class 150lbs
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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.-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, or with raised face removed (the latter is nonstandard).-WNF = Weld Neck Flange.-The large end of the hub may be straight or tapered.
Class 150 lb
Pipe
Flange Data
Hub Data
Raised Face
Drilling Data
Radius
N o m i n a l P i p e S i z e
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
2229.50749.30 1.8145.97 1.8145.97 5.88149.3522.00558.8024.00609.6025.25641.3520 1.3835.0527.25692.150.389.652634.25869.95 2.6968.33 2.6968.33 4.75120.6526.00660.4026.62676.1529.50749.3024 1.3835.0531.75806.450.389.652836.50927.10 2.8171.37 2.8171.37 4.94125.4828.00711.2028.62726.9531.50800.1028 1.3835.0534.00863.600.4411.183038.75984.25 2.9474.68 2.9474.68 5.38136.6530.00762.0030.75781.0533.75857.2528 1.3835.0536.00914.400.4411.183241.751060.5 3.1981.03 3.1981.03 5.69144.5332.00812.8032.75831.8536.00914.4028 1.6241.1538.50977.900.4411.183443.751111.3 3.2582.55 3.2582.55 5.88149.3534.00863.6034.75882.6538.00965.2032 1.6241.1540.501028.70.5012.703646.001168.4 3.5690.42 3.5690.42 6.19157.2336.00914.4036.75933.4540.251022.432 1.6241.1542.751085.90.5012.703848.751238.3 3.4487.38 3.4487.38 6.19157.2338.00965.2039.00990.6042.251073.232 1.6241.1545.251149.40.5012.704050.751289.1 3.5690.42 3.5690.42 6.44163.5840.001016.041.001041.444.251124.036 1.6241.1547.251200.20.5012.704253.001346.2 3.8196.77 3.8196.77 6.75171.4542.001066.843.001092.247.001193.836 1.6241.1549.501257.30.5012.704455.251403.4 4.00101.60 4.00101.607.00177.8044.001117.645.001143.049.001244.640 1.6241.1551.751314.50.5012.704657.251454.2 4.06103.12 4.06103.127.31185.6746.001168.447.121196.951.001295.440 1.6241.1553.751365.30.5012.7048
59.501511.3 4.25107.95 4.25107.957.56192.0248.001219.249.121247.753.501358.9
44
1.6241.1556.00142
2.40.5012.70
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