How to Guide
CFSIZE-C-v1
Barrel
(I.D.)
Hub
(I.D.)
Cast Iron Soil Pipe Sizing Guide for Culwell
®
Flange
Compression Models
Service Weight Cast Iron
Size
(in.)
Inside Diameter
of Hub
(in.)
Inside Diameter
of Barrel
(in.)
3
3.94 (+0.09 / -0.06)
2.96 (± 0.09)
4
4.94 (+0.09 / -0.06)
3.94 (± 0.09)
Extra Heavy Weight Cast Iron
Size
(in.)
Inside Diameter
of Hub
(in.)
Inside Diameter
of Barrel
(in.)
3
4.19 (+0.09 / -0.06)
3.00 (± 0.09)
4
5.19 (+0.09 / -0.06)
4.00 (± 0.09)
No Hub Cast Iron
Size
(in.)
Inside Diameter
of Barrel
(in.)
3
2.96 (± 0.09)
4
3.94 (± 0.09)
Outside Diameter Dimensions
Culwell
®
Flange Compression Models
AC3 & PC3
3 in. Compression O-Ring
Outside Diameter
without O-Ring
(in.)
Outside Diameter
w/Small O-Ring
(in.)
Outside Diameter
w/Large O-Ring
(in.)
Entrance
Bottom
Entrance
Bottom
Entrance
Bottom
2.875
2.890
2.960
3.070
3.070
3.175
AC4 & PC4
4 in. Compression Drop-Fit
Outside Diameter
w/Gasket
Uncompressed
(in.)
Outside Diameter
w/Gasket
Fully Compressed - Max.
(in.)
3.720
4.290
Note: O.D. dimensions are average and subject to variance.
Hub
(I.D.)
Barrel
(I.D.)
Hub
(I.D.)
Barrel
(I.D.)

