Stainless steel schedule 5 pipe and fitting.
Omaha Municipal Code § 49-832
in effectSec. 49-832. - Stainless steel schedule 5 pipe and fitting.
Stainless steel Schedule 5, Type 316 pipe conforming to ASTM A312 and ASTM A554 may be used in all sizes for both a tube grooved joining system or a press fit system for potable and non-potable water only. The following provisions shall also apply:
(a) Roll grooved:
(1) Fittings shall conform to ASTM A351.
(2) Grooved joints shall conform to ANSI C606.
(3) Gasketed mechanical couplings shall conform to ASTM F1476.
(4) Components shall conform to NSF 61.
(5) Installation shall utilize a single manufacturer throughout the system.
(6) Installation shall be in accordance with system manufacturer's requirements.
(7) Couplings shall be rigid ("zero-flex") style consisting of a ductile cast iron housing conforming to ASTM A-536 and a synthetic rubber gasket.
(8) Gaskets shall be designed for domestic water service from 30 Fahrenheit to 230 degrees Fahrenheit and shall be molded of an EPDM compound conforming to ASTM D-2000.
(9) Shall be used for water supply only.
(10) Couplings shall be installed according to the manufacturer's instructions to produce a system capable of withstanding a 300 psig static test.
(11) Shall only be installed down-stream of the first valve or bypass tee after the meter.
(b) Press fit joining systems conforming to ASTM A312 and ASTM A554 may be used in all sizes following these provisions:
(1) Fittings, joints and couplings shall conform to ASME B31.9.
(2) Components shall conform to NSF 61.
(3) Installation shall utilize a single manufacturer throughout the system.
(4) Installation shall be in accordance with system manufacturer's requirements.
(5) O-rings shall meet EPDM ASTM D2000.
(6) Shall only be installed when the surrounding air temperature meets or exceeds 20 degrees Fahrenheit.
(7) Shall not be installed below ground.
(8) Shall only be installed on the downstream side of the first valve or bypass tee after the meter.
(9) Pipe shall be reamed and chamfered before joining.
(c) Support/hangers:
(1) Horizontal tubing: Shall be supported at approximately six-foot intervals for piping 1½-inches and smaller in diameter and ten-foot intervals for piping two inches and larger in diameter.
(2) Vertical tubing: Three-quarters inch and smaller in diameter shall be supported at each story or at maximum intervals of four feet and at each story or at maximum intervals of ten feet for piping one inch and larger in diameter.
(3) All water lines shall have a minimum clear spacing between parallel lines of three inches for sizes one inch and smaller and six inches for sizes larger than one inch.
(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_S49-832STSTSC5PIFIFetched: 10/28/2026