1303.1 General.
MC § 1303.1
Joints and connections shall conform to the ASTM Standards listed in Table 1302.5, shall be of a type approved for fuel-oil piping systems, 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 used. All threaded joints and connections shall be made tight with suitable lubricant or pipe compound. Unions and flanges, right or left couplings, and sweat fittings shall be brazed in accordance with ASME Boiler and Pressure Vessel Code, Section IX (Welding and Brazing Qualifications) or in accordance with AWS B2.2 Standard for Brazing Procedure and Performance Qualification. Cast-iron fittings shall not be used. Joints and connections shall be tight for the pressure required by test. Flanged joints requiring gaskets or packing shall be equipped with gaskets rated for a minimum of 750°F (398.9°C).
