SECTION P-605  MATERIALS, JOINTS AND CONNECTIONS
P-605.1Soil and ground water. The installation of a water service or water distribution pipe or water-supply pipes shall be prohibited in soil and ground water contaminated with solvents, fuels, organic compounds or other detrimental materials causing permeation, corrosion, degradation or structural failure of the piping material. Where detrimental conditions are suspected, a chemical analysis of the soil and ground water conditions shall be required to ascertain the acceptability of the water service or water distribution piping material for the specific installation. Where detrimental conditions exist, approved alternative materials or routing shall be required.
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TABLE P-605.3
WATER
SERVICEDISTRIBUTION PIPE
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P-605.3 Water servicedistribution pipe. Water servicedistribution pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table P-605.3. Water servicedistribution pipe or tubing, installed underground and outside of the structure, shall have a working pressure rating of not less than 160 psi (1100 kPa) at 73.4ºF (23ºC). Where the water pressure exceeds 160 psi (1100 kPa), piping material shall have a working pressure rating not less than the highest available pressure. Water servicedistribution piping materials not third- party certified for water distributionsupply pipe shall terminate at or before the full open valve located at the entrance to the structure. Ductile iron water servicedistribution piping shall be cement mortar lined in accordance with AWWA C104/A21.4. All water service piping from the City water main tap to the curb stop shall conform to the regulations as set forth by the Philadelphia Water Department.
Exception: pipes 3 inches and larger shall be ductile iron to the meter.
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P-605.4 Water distributionsupply pipe. Water distributionsupply pipe and tubing shall conform to NSF 61 and shall conform to one of the standards listed in Table P-605.4. Hot water distributionsupply pipe and tubing shall have a pressure rating of not less than 100 psi (690 kPa) at 180ºF (82ºC). Any water supply piping supplying or located within occupancies other than one- and two-family dwellings and apartments shall be metallic piping in accordance with this Section.
TABLE P-605.4
WATER
DISTRIBUTIONSUPPLY PIPE
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P-605.4.1 High rise materials. Metallic piping shall be installed in buildings 75 feet (22,860 mm) or more in height as measured from the lowest level of fire department vehicle access.
Exception: Nonmetallic piping may be used within demised individual residential dwelling units located within buildings not more than 150 feet (45 720 mm) in height as measured from the lowest level of fire department vehicle access.
P-605.5 Fittings. Pipe fittings shall be approved for installation with the piping material installed and shall comply with the applicable standards listed in Table 605.5. Pipe fittings utilized in water supply systems shall also comply with NSF 61. Ductile and gray iron pipe and pipe fittings utilized in water servicedistribution piping systems shall be cement mortar lined in accordance with AWWA C104/A21.4.
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