MC 1202 — Material
New York City Administrative Code (current through L.L. 2026/147, enacted September 12, 2026, and amendments effective through October 10, 2026) · NYC Mechanical Code § MC 1202
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Section MC 1202: Material
1202.1 Piping. Piping material, other than those contained within this section and conforming with the ASTM standards listed within this chapter, shall be of an approved type. Exception: Embedded piping regulated by Section 1209, and ground-source heat pump loop systems regulated by Section 1210. 1202.2 Used existing materials. Reused pipe, fittings, valves or other materials shall be clean and free of foreign materials. 1202.3 Material rating. Materials shall be rated for the operating temperature and pressure of the hydronic system. Materials shall be suitable for the type of fluid in the hydronic system. 1202.4 Piping materials standards. Hydronic pipe shall conform to the standards listed in Table 1202.4. The exterior of the pipe shall be protected from corrosion and degradation. Table 1202.4 Hydronic Pipe Material Standard (see Chapter 15) Acrylonitrile butadiene styrene (ABS) plastic pipe ASTM D 1527; ASTM F 2806 Chlorinated polyvinyl chloride (CPVC) plastic pipe ASTM D 2846; ASTM F 441; ASTM F 442 Copper, brass or copper-alloy pipe ASTM B 42; ASTM B 43; ASTM B 302 Copper, brass or copper-alloy tube (Type K, L or M) ASTM B 75; ASTM B 88; ASTM B 135; ASTM B 251 Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pressure pipe ASTM F 1281;CSA B137.10 Cross-linked polyethylene (PEX) tubing ASTM F 876; ASTM F 877 Ductile iron pipe AWWA C115/A21.15; AWWA C151/A21.51 Polyethylene/aluminum/polyethylene (PE-AL-PE) pressure pipe ASTM F 1282; CSA B137.9 Polypropylene (PP) plastic pipe ASTM F 2389 Polyvinyl chloride (PVC) plastic pipe ASTM D 1785; ASTM D 2241 Raised temperature polyethylene (PE-RT) ASTM F 2623; ASTM F 2769 Steel pipe ASTM A 53 / A 53M; ASTM A 106 Steel tubing ASTM A 254 1202.5 Pipe fittings. Hydronic pipe fittings shall conform to the respective pipe standards or to the standards listed in Table 1202.5. Table 1202.5 Hydronic Pipe Fittings Material Standard (see Chapter 15) Copper, brass, and copper alloys ASME B16.15; ASME B16.18; ASME B16.22; ASME B16.24; ASME B16.26; ASME B16.51; ASTM F 1974 Ductile iron and gray iron ANSI/AWWA C110/A21.10; AWWA C153/A21.53; ASTM A 126; ASTM A 395; ASTM A 536; ASTM F 1476; ASTM F 1548 Malleable iron ASME B16.3 PE-RT fittings ASTM F 1807; ASTM F 2098; ASTM F 2159; ASTM F 2735; ASTM F 2769 PEX fittings ASTM F 877; ASTM F 1807; ASTM F 2159 Plastic ASTM D 2466; ASTM D 2467; ASTM F 438; ASTM F 439; ASTM F 877; ASTM F 2389; ASTM F 2735 Steel ASME B16.5; ASME B16.9; ASME B16.11; ASME B16.28; ASTM A 53/A 53M; ASTM A 106; ASTM A 234; ASTM A 420; ASTM A 536; ASTM A 395; ASTM F 1476; ASTM F 1548 1202.6 Valves. Valves shall be constructed of materials that are compatible with the type of piping material and fluids in the system. Valves shall be rated for the temperatures and pressures of the systems in which the valves are installed. 1202.7 Flexible connectors, expansion and vibration compensators. Flexible connectors, expansion and vibration control devices and fittings, when used, shall protect the components of the hydronic system from damage caused by expansion, contraction, transverse movement, angular deflection and vibration, shall be rated for the temperatures and pressures of the systems in which the devices are installed, and shall be compatible with the fluid and all materials provided.
