Closet floor flanges and carriers.
Omaha Municipal Code § 49-809
in effectSec. 49-809. - Closet floor flanges and carriers.
The following shall apply to closet floor flange installations:
(a) Flanges shall be manufactured of PVC, ABS, brass, malleable cast-iron or cast-iron with a thickness of at least three-sixteenth inch.
(b) All closet screws, closet flange bolts, washers and nuts shall be brass or stainless steel. Shall be securely anchored to the floor with brass or stainless steel bolts or screws with brass or stainless nuts and washers. The anchor shall withstand a minimum lateral force of 250 pounds.
Exception: When a closet bend passes through a slab on grade concrete floor and the joint is made with lead and oakum.
(c) Carriers for commercial buildings shall meet ASME /ASTM A1 12.6.1. For residential use, carriers shall be approved by the board as to design and materials used and the board shall keep a list of all approved residential carriers.
(d) There shall not be any intermingling of dissimilar materials.
(e) All cast-iron water closet floor flanges shall be connected by lead and oakum joint, hubless joint or compression joint connection.
(f) Offset flanges shall have a maximum 45 degree set.
(Ord. No. 40524, § 1, 10-20-15)
Source: City of Omaha, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ne/omaha/codes/code_of_ordinances?nodeId=OMMUCOCHGEORVOII_CH49PL_ARTVIIIQUWEINMA_S49-809CLFLFLCAFetched: 10/28/2026