900 Series Flange Specs
All dimensions given in inches.
Dimensions and tolerances in accordance with ANSI B16.5.
*1/4 in. raised face included in dimensions Q, Y and YY.
**Bolt hole diameter 1/8 in. larger than bolt diameter.

Nom. Pipe Size		 O Q* R X No. and** Dia. of Bolt Holes Bolt Circle Dia YY* H J Y* B r YV BB C T
½
 4.75 0.88 1.38 1.5 4-0.88 3.25 2.38 0.84
To Be

S
p
e
c
i
f
i
e
d

by

P
u
r
c
a
s
e
r

 1.25 0.88 0.12 1.25 0.9 0.93 0.88
¾ 5.12 1 1.69 1.75 4-0.88 3.5 2.75 1.05 1.38 1.09 0.12 1.38 1.11 1.14 1
1 5.88 1.12 2 2.06 4-1.00 4 2.88 1.32 1.62 1.36 0.12 1.62 1.38 1.41 1.12
1¼ 6.25 1.12 2.5 2.5 4-1.00 4.38 2.88 1.66 1.62 1.7 0.19 1.62 1.72 1.75 1.19
1½ 7 1.25 2.88 2.75 4-1.12 4.88 3.25 1.9 1.75 1.95 0.25 1.75 1.97 1.99 1.25
2 8.5 1.5 3.62 4.12 8-1.00 6.5 4 2.38 2.25 2.44 0.31 2.25 2.46 2.5 1.5
2½ 9.62 1.62 4.12 4.88 8-1.12 7.5 4.12 2.88 2.5 2.94 0.31 2.5 2.97 3 1.88
3 9.5 1.5 5 5 8-1.00 7.5 4 3.5 2.12 3.57 0.38 2.12 3.6 3.63 1.62
4 11.5 1.75 6.19 6.25 8-1.25 9.25 4.5 4.5 2.75 4.57 0.44 2.75 4.6 4.63 1.88
5 13.75 2 7.31 7.5 8-1.38 11 5 5.56 3.12 5.66 0.44 3.12 5.69 5.69 2.12
6 15 2.19 8.5 9.25 12-1.25 12.5 5.5 6.63 3.38 6.72 0.5 3.38 6.75 6.75 2.25
8 18.5 2.5 10.62 11.75 12-1.50 15.5 6.38 8.63 4 8.72 0.5 4.5 8.75 8.75 2.5
10 21.5 2.75 12.75 14.5 16-1.50 18.5 7.25 10.75 4.25 10.88 0.5 5 10.92 10.88 2.81
12 24 3.12 15 16.5 20-1.50 21 7.88 12.75 4.62 12.88 0.5 5.62 12.92 12.94 3
14 25.25 3.38 16.25 17.75 20-1.62 22 8.38 14 5.12 14.14 0.5 6.12 14.18 14.19 3.25
16 27.75 3.5 18.5 20 20-1.75 24.25 8.5 16 5.25 16.16 0.5 6.5 16.19 16.19 3.38
18 31 4 21 22.25 20-2.00 27 9 18 6 18.18 0.5 7.5 18.2 18.19 3.5
20 33.75 4.25 23 24.5 20-2.12 29.5 9.75 20 6.25 20.2 0.5 8.25 20.25 20.19 3.62
24 41 5.5 27.25 29.5 20-2.62 35.5 11.5 24 8 24.25 0.5 10.5 24.25 24.19 4