Flanges Blind - Class 150 RF ASME 16.47 Series B

All dimensions are in "mm" unless noted otherwise.

Dimensions of Class 150 RF Blind Flanges Series B as per ASME B16.47.

Blind Flange

Nominal
Pipe Size		 OD of
Flange
(O)		 Thickness
of Flange
(C)		 Dia of
Raised Face
(R)		 Dia of
Bolt Circle
(B)		 No of
Bolt
Holes		 Dia of
Bolt
Holes		 Dia of
Bolt		 Approx
Weight
(kg)
26 785.9 44.5 771.2 744.5 36 22.4 19.1 164
28 836.7 47.8 762 795.3 40 22.4 19.1 200 
30 887.5 50.8 812.8 846.1 44 22.4 19.1 240 
32 941.3 53.8 863.6 900.2 48 22.4 19.1 287 
34 1004.8 57.2 920.8 957.3 40 25.4 22.2 347 
36 1057.1 58.7 971.6 1009.7 44 25.4 22.2 395 
38 1124 63.5 1022.4 1069.8 40 28.4 25.7 483 
40 1174.8 66.5 1079.5 1120.6 44 28.4 25.4 553 
42 1225.6 68.3 1130.3 1171.4 48 28.4 25.4 618 
44 1276.4 71.4 1181.1 1222.2 52 28.4 25.4 701 
46 1341.4 74.7 1234.9 1284.2 40 31.8 28.6 813 
48 1392.2 77.7 1289.1 1335 44 31.8 28.6 911 
50 1443 80.8 1339.9 1385.8 48 31.8 28.6 1017 
52 1493.8 84.1 1390.7 1436.6 52 31.8 28.6 1134 
54 1549.4 87.4 1441.5 1492.3 56 31.8 28.6 1268 
56 1600.2 90.4 1492.3 1543.1 60 31.8 28.6 1400 
58 1674.9 93.5 1543.1 1611.4 48 35.1 31.8 1589 
60 1725.7 96.8 1600.2 1662.2 52 35.1 31.8 1746 

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