icon

Flanged Fittings

Blind Flanges

2 1 4 4 7 Blind Flanges Print
Size1
(in.)
O
Diameter
of Flange
(in).
Q
Thickness
of Flange
(in.)
V
Thickness
(in.)
X
Hub
Diameter
(in.)
Y
Overall
Thickness
(in.)
Weight
(lbs.)
4 9 0.94 0.88 5.31 1.31 14
6 11 1 0.94 7.56 1.56 25
8 13.5 1.12 1.06 9.69 1.75 40
10 16 1.19 1.12 11.94 1.94 60
12 19 1.25 0.81 14.06 2.19 80
14 21 1.38 0.88 - - 110
16 23.5 1.44 1 - - 145
18 25 1.56 1.06 - - 175
20 27.5 1.69 1.12 - - 225
24 32 1.88 1.25 - - 328
30 38.75 2.12 2.32 - - 703
36 46 2.38 2.99 - - 1232
42 53 2.62 1.81 - - 1230
48 59.5 2.75 2 - - 1657
54 66.25 3 2.25 - - 2249
60 73 3.12 2.38 - - 2863
64 80 3.38 2.56 - - 3761
1.) See General Notes concerning 3" size.

Note: Reducing blind flanges can be furnished. Specify flange outside diameter and the size of pipe.

Dished blind flanges 24" and larger are furnished with a lifting eye. The “V” thicknesses for 30" and 36" blind flanges are special manufacturing thicknesses.

Flat blind flanges and blind flanges smaller than 20" may be ordered with a special, fabricated lifting eye.

Size Standard Design Pressure Rating (psi) Special Design Pressure Rating (psi)
4"-10" Flat 250 - -
12"-24" Dished 250 Flat 200
30"-48" Dished 250 Flat 150
54"-64" Dished 150 - -