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Ordinance No. NS-XXX <br />Page 27 of 30 <br /> <br /> Exceptions: <br /> <br />1. Brass or bronze valves on sprinkler risers mounted to the exterior of the <br />building may be left unpainted. <br />2. Where OS&Y valves on the detector check assembly are the only control <br />valves, at least one OS&Y valve shall be painted red. <br /> <br />(2) Section 6.2.9 is hereby amended as follows: <br /> <br />All connections to private fire service mains for fire protection systems shall be <br />arranged in accordance with one of the following so that they can be isolated: <br /> <br />(1) A post indicator valve installed not less than 40 ft (12 m) from the building <br /> <br />(a) For buildings less than 40 ft (12 m) in height, a post indicator <br />valve shall be permitted to be installed closer than 40 ft (12 m) but at <br />least as far from the building as the height of the wall facing the post <br />indicator valve. <br /> <br />(2) A wall post indicator valve <br /> <br />(3) An indicating valve in a pit, installed in accordance with Section 6.4 <br /> <br />(4) A backflow preventer with at least one indicating valve not less than 40 ft <br />(12 m) from the building <br /> <br />(a) For buildings less than 40 ft (12 m) in height, a backflow preventer <br />with at least one indicating valve shall be permitted to be installed <br />closer than 40 ft (12 m) but at least as far from the building as the <br />height of the wall facing the backflow preventer. <br /> <br />(5) Control valves installed in a fire-rated room accessible from the exterior <br /> <br />(6) Control valves in a fire-rated stair enclosure accessible from the exterior <br /> <br />(3) Section 10.1.5 is hereby added as follows: <br /> <br />10.1.5 All ferrous pipe and joints shall be polyethylene encased per AWWA C150, <br />Method A, B, or C. All fittings shall be protected with a loose 8-mil polyethylene <br />tube or sheet. The ends of the tube or sheet shall extend past the joint by a <br />minimum of 12 inches and be sealed with 2-inch-wide tape approved for <br />underground use. Galvanizing does not meet the requirements of this section. <br /> <br /> Exception: 304 or 316 Stainless Steel pipe and fittings <br />