FRP Systems Ltd. - Thunder Bay, Ontario

Flange Data

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Vanstone Flange

Vanstone Flange

Full Face Flange

Full Face Flange

DIA ID 
T
Z
W
L
X
Y
BCD
N HOLES
D
OD
0.19 1/2 5/8 6 2-3/8 1.75 3.125 4 5/8 4-1/4
1.5 0.19 1/2 5/8 6 3-1/8 2.125 3.875 4 5/8 5
2 0.19 1/2 11/16 6 4 3 4.75 4 3/4 6
3 0.25  1/2 13/16 6 5-1/4 4.25 6 4 3/4 7-1/2
4 0.25 9/16 15/16 6 6-3/4 5.25 7.5 8 3/4 9
6 0.375 11/16 1-1/16 8 8-5/8 7.625 9.5 8 7/8 11
8 0.4375 13/16 1-1/4 8 10-7/8 9.875 11.75 8 7/8 13-1/2
10 0.5 1 1-7/16 10 13-1/4 12 14.25 12 1 16
12 0.625 1-1/4 1-3/4 10 16 14.625 17 12 1 19
14 0.75 1-1/4 1-7/8 12 17-5/8 16.5 18.75 12 1-1/8 21
16 0.80 1-1/2 2 12 20-1/8 18.75 21.25 16 1-1/8 23-1/2
18 0.90 1-9/16 2-1/8 12 21-1/2 20.25 22.75 16 1-1/4 25
20 1 1-11/16 2-1/4 12 23-3/4 22.375 25 20 1-1/4 27-1/2
24 1.2 2 2-1/2 12 28-1/8 26.75 29.5 20 1-3/8 32
30 1.5 1-1/2 3 15 34-5/8 33 36 28 1-3/8 38-3/4
36 1.8 1-3/4 3.5 15 41-1/8 39 42.75 32 1-5/8 46

Dimensions are in Inches 
Safety Factor 10:1, 150 psi Rating Discounting Liner 

FRP Systems
804 Macdonell St. Thunder Bay, Ontario P7B 4A6 - (p) 807.345.2171 - (F) 807.345.8215 - (E) info@frpsystems.com