Metal Bellows Correctedn 7/11/00 2:42 PM Page 17
#H & HD
The dimensions data shown below has been
O.D.
T
consolidated from current standards for easy
BC
reference.
L
To select the overall length of an assembly that uses plate flanges, use the FF (Flange by Flange) overall length from the data
pages and adjust the overall catalog overall length by the amount shown in the column labeled FF OAL adjust.
Plate Flange Dimensions
FF OAL Adjust
Nominal OD T BC HD Wt.
Catalog Des. Pres.
Pipe Size (Inch) (Inch) (Inch) #H (Inch) (Lbs.) 50 150
2 6 5/8 4 3/4 4 3/4 4 -3/4 -3/4
2 1/2 7 5/8 5 1/2 4 3/4 5 -1 -1
3 7 1/2 5/8 6 4 3/4 6 -1 1/8 -1 1/8*
3 1/2 8 1/2 5/8 7 8 3/4 8 -1 1/4 -1 1/4
4 9 5/8 7 1/2 8 3/4 8 -1 3/8 -1 3/8
5 10 3/4 8 1/2 8 7/8 11 -1/2* -1/2*
6 11 3/4 9 1/2 8 7/8 12 -3/8* -3/8*
8 13 1/2 1 11 3/4 8 7/8 23 -1/4* -1/4*
10 16 1 14 1/4 12 1 30 -1/8* -1/8*
12 19 1 17 12 1 43 -5/8* -5/8*
14 21 1 1/4 18 3/4 12 1 1/8 63 0 -2
16 23 1/2 1 1/4 21 1/4 16 1 1/8 76 0 -2 1/2
18 25 1 1/2 22 3/4 16 1 1/4 90 +1/2 5/8*
20 27 1/2 1 1/2 25 20 1 1/4 106 +1/2 -1*
22 29 1/2 1 1/2 27 1/4 20 1 3/8 120 -1/2 -1 1/2*
24 32 1 1/2 29 1/2 20 1 3/8 133 -1/2 -3 1/2
300 psig Flange Dimensions
2 6 1/2 1 5 8 3/4 7 -5/8
2 1/2 7 1/2 1 5 7/8 8 7/8 9 -1
3 8 1/4 1 6 5/8 8 7/8 11 -1 3/8
3 1/2 9 1 1/8 7 1/4 8 7/8 15 -1 1/4
4 10 1 1/8 7 7/8 8 7/8 19 -1 1/2
5 11 1 1/4 9 1/4 8 7/8 24 -1 1/2
6 12 1/2 1 1/2 10 5/8 12 7/8 34 -1 1/8
8 15 1 1/2 13 12 1 49 -1 7/8
10 17 1/2 1 3/4 15 1/4 16 1 1/8 66 -1 3/4
12 20 1/2 2 17 3/4 16 1 1/4 102 -1 3/4
14 23 2 20 1/4 20 1 1/4 132 -2
16 25 1/2 2 1/4 22 1/2 20 1 3/8 175 -2
18 28 2 1/2 24 3/4 24 1 3/8 226 -2
20 30 1/2 2 1/2 27 24 1 3/8 265 -2 1/2
22 33 2 3/4 29 1/4 24 1 5/8 326 -2 1/2
24 36 2 3/4 32 24 1 5/8 394 -2 7/8
Notes:
Plate flanges are designed for use with sheet gasket.
Flange gasket seating surface is a smooth mill finish.
Not recommended for use with spiral wound gaskets.
A36 material not recommended for use above 700°F. or below 20°F.
Not suggested for applications where ASME B31.3 or Section VIII Pressure Vessel Code requirements apply
Standard Catalog Flanges: 50 psig design/Class 125 L.W., 150 psig design/Class 150, 300 psig design/Class 300
* Length difference includes space required to avoid interference with bellows and flange nuts.
17
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