§ 59.210. Sanitary piping.

 (a)  All sanitary piping, fittings, and connections which are exposed to milk or milk products, or from which liquids may drip, drain or be drawn into milk products, shall consist of smooth, impervious, corrosion-resistant, nontoxic, easily cleanable material.

 (b)  All sanitary piping, connections and fittings shall consist of any of the following:

   (1)  Stainless steel of the AISI (American Iron and Steel Institute) 300 series.

   (2)  Equally corrosion-resistant metal which is nontoxic and nonabsorbent.

   (3)  Heat-resistant glass. Provided: that plastic or rubber and rubberlike materials which are relatively inert and resistant to scratching, scoring, decomposition, crazing, chipping and distortion under normal use conditions; which are nontoxic, fat resistant and relatively nonabsorbent; which do not impart flavor or odor to the products; and which maintain their original properties under repeated use conditions may be used for gaskets, sealing applications and short flexible takedown jumpers or connections where flexibility is required for essential or functional reasons.

 (c)  Sanitary piping, fittings and connections shall be designed to permit easy cleaning, shall be kept in good repair and free of breaks or corrosion, and shall contain no dead ends of piping in which milk may collect.

 (d)  All interior surfaces of demountable piping—including valves, fittings and connections—shall be designed, constructed, and installed to permit inspection and drainage.

 (e)  All cleaned-in-place milk pipelines and return-solution lines shall be rigid, self-draining, and so supported to maintain uniform slope and alignment.

   (1)  Return solution lines shall be constructed of material meeting the specifications of subsection (b). If gaskets are used, they shall be self-positioning; of material meeting the specifications outlined in subsection (b); and designed, finished, and applied to form a smooth, flush-interior surface. If gaskets are not used, all fittings shall have self-positioning faces designed to form a smooth, flush-interior surface. All interior surfaces of welded joints in pipelines shall be smooth and free from pits, cracks, or inclusions.

   (2)  In the case of welded lines, all welds shall be inspected by the use of a boroscope or other appropriate available inspection device as they are made, and such welds shall be approved by the Secretary.

   (3)  Each cleaning circuit shall have access points for inspection in addition to the entrances and exits. These may be valves, removable sections, fittings, or other means or combinations that are adequate for inspection of the interior of the line. These access points shall be located at sufficient intervals to determine the general condition of the interior surfaces of the line.

   (4)  Detailed plans for welded pipeline systems shall be submitted to the Secretary for written approval prior to installation. No alteration or addition shall be made to any welded milk pipeline system without prior written approval from the Secretary.

 (f)  Pasteurized milk and milk products shall be conducted from one piece of equipment to another only through sanitary milk piping.

   This section cited in 7 Pa. Code §  59.109 (relating to utensils and equipment—construction); 7 Pa. Code §  59.216a (relating to batch pasteurization requirements); 7 Pa. Code §  59.218 (relating to bottling and packaging); 7 Pa. Code §  59.251 (relating to receiving station requirements); 7 Pa. Code §  59.252 (relating to transfer station requirements); 7 Pa. Code §  59.253 (relating to tank truck cleaning and sanitizing facilities requirements); and 7 Pa. Code §  59.704 (relating to equipment and utensils).