1211.13 Steel Pipe and Tubing. Joints between steel pipe,

tubing, or fittings shall be installed in accordance with one of the following methods: (1) Mechanical joints shall be made with an approved and

listed elastomeric gasket.

(1) Mechanical joints shall be made with an approved and

listed elastomeric gasket. (2) Threaded joints shall be made with pipe threads that are

in accordance with ASME B1.20.1. Thread sealant tape

(1) Heat-fusion joints for polypropylene (PP) pipe shall be

installed with socket-type heat-fused polypropylene fittings, butt-fusion polypropylene fittings or pipe, or electrofusion polypropylene fittings. Joint surfaces shall be clean and free from moisture. The joint shall be undisturbed until cool. Joints shall be made in accordance with ASTM F2389 or CSA B137.11. (2) Mechanical and compression sleeve joints shall be

installed in accordance with the manufacturer’s installa

(2) Threaded joints shall be made with pipe threads that are

in accordance with ASME B1.20.1. Thread sealant tape or compound shall be applied only on male threads, and such material shall be of approved types, insoluble in water, and nontoxic. (3) Welded joints shall be made by electrical arc or oxy gen/acetylene method. Joint surfaces shall be cleaned by

(3) Welded joints shall be made by electrical arc or oxy gen/acetylene method. Joint surfaces shall be cleaned by an approved procedure. Joints shall be welded by an approved filler metal. (4) Pressed joints shall have an elastomeric o-ring that forms

the connection. The pipe or tubing shall be fully inserted

(1) Mechanical joints shall be designed to provide a perma nent seal and shall be of the mechanical or push-on joint. The mechanical joint shall include a pipe spigot that has a wall thickness to withstand without deformation or collapse; the compressive force exerted where the fitting is tightened. The push-on joint shall have a minimum wall thickness of the bell at any point between the ring and the pipe barrel. The elastomeric gasket shall comply with ASTM D3139, and be of such size and shape as to provide a compressive force against the spigot and socket after assembly to provide a positive seal. (2) Solvent cement joints for PVC pipe or fittings shall be

clean from dirt and moisture. Pipe shall be cut square and

(4) Pressed joints shall have an elastomeric o-ring that forms

the connection. The pipe or tubing shall be fully inserted into the fitting, and the pipe or tubing marked at the shoulder of the fittings. Pipe or tubing shall be cut square, chamfered, and reamed to full inside diameter. The fitting alignment shall be checked against the mark on the pipe or tubing to ensure the pipe or tubing is fully inserted into the fitting. The joint shall be pressed using the tool recommended by the manufacturer.