Figure 72 & 73
PIPING PRODUCTS
150# IPS DUCTILE IRON
BACK-UP FLANGES
Features
• 150# Flange Drilling
• Cast Ductile Iron
• IPS Sizes
• For Ring Types:
○ Stub End SE
○ Angle Face Ring (AFR)
• Finishes:
○ Red Primer Paint
○ Hot Dipped Galvanized
• Ring-side Beveled Inner Diameter
• Back-side Markings Visible When Installed
• Sizes 1 to 24 Inch
Standards
• Material: ASTM A536 grade 65-45-12
• Hardness: ISO 1083
• Finish:
○ 1 mil Minimum (Red Primer)
○ ASTM A123 (Galvanized)
Physical Properties
• Tensile Strength: 65 KSI Minimum
• Yield Strength: 45 KSI Minimum
• Elongation: 12% Minimum
• Hardness: HBW 160-210 (Brinell)
STUB END = 72
ANGLE FACE RING = 73
Figure Number Matrix
FNW Figure Finish Size
RED PRIMER = P
GALVANIZED = G
1 = G
1-1/2 = J
2 = K
2-1/2 = L
3 = M
4 = P
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SIZE CODEFINISH CODEFIGURE
5 = S
6 = U
8 = X
10 = 10
12 = 12
14 = 14
16 = 16
18 = 18
20 = 20
24 = 24
PIPING PRODUCTS
150# IPS DUCTILE IRON
BACK-UP FLANGES
A
BV
Figure 72 & 73
CASTING
MARKS
SIDE
OD
BC
45°
BH-N
A
SECTION A
ID
T
Dimensions (inches)
Size ØOD
1 4.25 1.44 1.75 0.50 0.25 3.13 0.63 4 1.43 1.32
1-1/2 5.00 2.06 2.38 0.50 0.25 3.88 0.63 4 1.76 1.76
2 6.00 2.63 2.88 0.50 0.25 4.75 0.75 4 2.91 2.91
2-1/2 7.00 3.13 3.38 0.50 0.25 5.50 0.75 4 3.81 3.81
3 7.50 3.75 4.00 0.50 0.25 6.00 0.75 4 4.01 4.01
4 9.00 4.75 5.00 0.56 0.25 7.50 0.75 8 6.61 5.95
5 10.00 5.75 6.06 0.63 0.25 8.50 0.88 8 7.61 7.05
6 11.00 6.88 7.25 0.63 0.25 9.50 0.88 8 8.82 8.00
8 13.50 8.88 9.25 0.63 0.31 11.75 0.88 8 13.45 11.90
10 16.00 11.00 11.44 0.63 0.31 14.25 1.00 12 15.10 14.11
12 19.00 13.00 13.63 0.75 0.31 17.00 1.00 12 27.23 24.47
14 21.00 14.25 14.88 0.75 0.31 18.75 1.13 12 35.94 32.19
16 23.50 16.25 16.88 0.75 0.38 21.25 1.13 16 42.33 40.04
18 25.00 18.25 18.88 0.88 0.38 22.75 1.25 16 46.96 43.87
20 27.50 20.25 20.88 0.88 0.38 25.00 1.25 20 55.12 53.04
24 32.00 24.25 24.88 1.00 0.38 29.50 1.38 20 82.01 80.03
ØID
SE AFR SE AFR
T BV BC BH N
Wt. (Lbs.)
Tolerances
BC 10”-12”: ± .079
Dimension ID T BV
Tolerances
DOC: FNW72-7314 Ver. 07/2014
© 2014 - FNW. All rights reserved. 21369
The FNW logo is a trademark of Ferguson Enterprises, Inc., PL Sourcing, PO Box 2778, Newport News, VA 23609
The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as
warranties or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and
conditions, which are available on request. We reserve the right to modify or improve the designs or specications of our products at any time without notice. Always
verify that you have the most recent product specications or other documentation prior to the installation of these products.
+0.079 +0.12 +0.039 +0.059 +0.079 +0.079
-0 -0 -0 -0.059 -0.059 -0
BC 14”-24”: ± .098
BC OD
OD 12”-24”: ± .120
BH
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