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 Los Angeles County
 Code of Ordinances
 Title 28. PLUMBING CODE
 Chapter 6. WATER SUPPLY AND DISTRIBUTION

  Chapter 6. WATER SUPPLY AND DISTRIBUTION  

§ 609.0. Installation, Testing, Unions, and Locations.

TABLE 604.1
MATERIALS FOR BUILDING SUPPLY AND WATER DISTRIBUTION PIPING AND FITTINGS

MATERIAL BUILDING SUPPLY PIPE AND FITTINGS WATER DISTRIBUTION OR SOLAR THERMAL PIPE AND FITTINGS REFERENCED STANDARD(S) PIPE REFERENCED STANDARD(S) FITTINGS
Asbestos-Cement X — ASTM C 296 —
Brass X X ASTM B 43, ASTM B 135 —
Copper X X ASTM B 42, ASTM B 75, ASTM B 88, ASTM B 251, ASTM B 302, ASTM B 447 ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.26
CPVC X X ASTM D 2846, ASTM F 441, ASTM F 442 ASTM D 2846, ASTM F 437, ASTM F 438, ASTM F 439, ASTM F 1970
Ductile-Iron X X AWWA C151 ASME B16.4, AWWA C110, AWWA C153
Galvanized Steel X X ASTM A 53 —
Malleable Iron X X — ASME B16.3
PE X — ASTM D 2239, ASTM D 2737, ASTM D 3035, AWWA C901, CSA B137.1 ASTM D 2609, ASTM D 2683, ASTM D 3261, ASTM F 1055, CSA B137.1
PE-AL-PE X X ASTM F 1282, CSA B137.9 ASTM F 1282, ASTM F 1974, CSA B137.9
PE-RT X X ASTM F 2769 ASTM F 1807, ASTM F 2098, ASTM F 2159; ASTM F 2735, ASTM F 2769
PEX 2, 3 X X ASTM F 876, ASTM F 877 CSA B137.5, AWWA C904 ASSE 1061, ASTM F 877, ASTM F 1807, ASTM F 1960, ASTM F 1961, ASTM F 2080, ASTM F 2159, ASTM F 2735, CSA B137.5
PEX-AL-PEX X X ASTM F 1281, CSA B137.10, ASTM F 2262 ASTM F 1281, ASTM F 1974, ASTM F 2434, CSA B137.10
PP X X ASTM F 2389, CSA B137.11 ASTM F 2389, CSA B137.11
PVC X — ASTM D 1785, ASTM D 2241, AWWA C900 ASTM D 2464, ASTM D 2466, ASTM D 2467, ASTM F 1970
Stainless Steel X X ASTM A 269, ASTM A 312 —

 

For Building Supply or cold-water applications.

When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing or piping shall be sleeved with a material approved for potable water use in soil or other material that is impermeable to solvents or petroleum products.

PEX tubing shall meet or exceed the requirements of ASTM F876-08 or an equivalent or more stringent standard when used in continuously recirculating hot water systems and the PEX tubing is exposed to the hot water 100% of the time.

[For BSC, DSA-SS, DSA-SS/CC & HCD] The use of PEX-AL-PEX in potable water supply systems is not adopted.

Copper tube for solar thermal piping shall have a weight of not less than Type L. Type M copper tubing shall be permitted to be used for solar thermal piping where piping is aboveground in, or on, a building or underground outside of structures.

Cast iron fittings not more than 2 inches (50 mm) in size, where used in connection with potable water piping, shall be galvanized.

Malleable iron water fittings shall be galvanized.

Galvanized steel shall not be used in solar thermal systems where in contact with glycol heat transfer fluid.


(Ord. 2013-0050 § 5, 2013.)