All dimensions are in "mm" unless noted otherwise.
All weights are in "kg".
Cap dimensions are as per ASME B16.9.

Cap BW

Nom Size
inches		 OD
'A' (mm)		 Dimension
E (mm)		 Limiting Wall Thk
for Length E (mm)		 Dimension
E1 (mm)		 Sch STD
Weight (kg)		 SchXS
Weight (kg)		 Sch160
Weight (kg)		 SchXXS
Weight (kg)
1/2 21.3 25 3.73 25 .05 .05    
3/4 26.7 25 3.91 25 .05 .05    
1 33.4 38 4.55 38 .09 .09 0.2 0.45
1 1/4 42.2 38 4.85 38 .14 .18 0.2 0.68
1 1/2 48.3 38 5.08 38 .18 .23 0.3 1.1
2 60.3 38 5.54 44 .27 .36 0.6 1.4
2 1/2 73 38 7.01 51 .41 .45 0.8 1.8
3 88.9 51 7.62 64 .64 .91 1.3 2.7
3 1/2 101.6 64 8.08 76 1.0 1.3   3.4
4 114.3 64 8.56 76 1.4 1.6 2.7 4.1
5 141.3 78 9.53 89 2.0 2.6 4.5 5.1

 

Nom Size
inches		 OD
'A' (mm)		 Dimension
E (mm)		 Limiting Wall Thk
for Length E (mm)		 Dimension
E1 (mm)		 Sch STD
Weight (kg)		 SchXS
Weight (kg)		 Sch160
Weight (kg)		 SchXXS
Weight (kg)
6 168.3 89 10.97 102 3.3 4.2 6.8 8.2
8 219.1 102 12.70 127 5.4 6.8 14 12
10 273 127 12.70 152 8.2 11.3 26  
12 323.8 152 12.70 178 12 16 43  
14 355.6 165 12.70 191 15 20 59  
16 406.4 178 12.70 203 19 25 75  
18 457.2 203 12.70 229 25 33    
20 508 229 12.70 254 31 41    
22 558.8 254 12.70 254 39 50    
24 610 267 12.70 305 44 58    
26 660.4 267     50 66    
30 762 267     60 79    
36 914 267     87 107    
42 1067 305     102 134    

 Notes

1] The shape of the caps shall be ellipsoidal and shall conform to the shape requirements as given in ASME Boiler and Pressure Vessel code.

2] Length E applies for thickness not exceeding that given in column «Limiting wall thickness for length E».

3] Length E1 applies for thickness greater than that given in column «Limiting wall thickness» for sizes NPS 24 and smaller.

4] For sizes NPS 26 and larger, length E1 shall be by agreement between manufacturer and purchaser.

Piping Topic: Reducer Elbow and Cap - BW Dimensions
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