Interpretation #6851

Published December 01, 2011

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Original Request

Code Version
2007
Code
PLUMBING
Code Description
Plumbing
Chapter
7
Section
706.2
Topic
closet flanges

Question

Is it the intent of 706.2 to prohibit the use to "inside the pipe" closet flanges such as the Oatey #43539 which slides inside of 4" sch. 40 DWV, which has a compress joint tighened bt (3) set screws set into a ledge inside the flange?

Answer Published 12/01/2011 at 9:42 AM

Closet flanges with ledges such as screw tops would be
prohibited by this section. Inside closet flanges would be
prohibited on 3" pipe because it would decrease the size to
less than 3".

Commentary

None