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<br />Version 2/14/2020 Page - 6 Public Works Quote <br />(ii) Flanged Joints: <br />1. Use flanges joined to pipe by solvent cementing <br />2. Flange Drilling and Dimensions: Comply with ANSI B16.1 <br />3. Flange Gaskets: Viton full face <br />4. Bolts and Nuts: Type 304 stainless steel <br />(iii) Threaded Joints: <br />1. Taper Pipe Threads: ANSI B2.1 <br />2. Join Preparation: Teflon Tape. <br />3. Use PVC dies for taper pipe threads. <br />(iv) Primer and Solvent Cement: <br />1. Standard: ASTM D 2564 <br />2. Products: Weld - On 724 CPVC Cement in Gray and Weld - <br />On Plumbing Primer in Clear or approved equal. <br />(iv) Fittings: <br />(i) Socket-Type: <br />1. Standard: ASTM D 2467 <br />2. Designation: PVC I. <br />(ii) Threaded Type: <br />1. Standard: ASTM D 2464 <br />2. Designation: PVC I. <br />4. Piping Installation: <br />a. Install piping as shown, specified, and recommended by the manufacturer. <br />b. If there is a conflict between manufacturer’s recommendations and the Specifications request <br />instructions from the Owner before proceeding. <br />c. Install straight runs true to line and elevation. <br />d. Install vertical pipe truly plumb in all directions. <br />e. Install piping parallel or perpendicular to building walls. <br />f. Install piping so as to leave all corridors, walkways, work areas, and like spaces unobstructed. <br />g. Protect and keep clean water pipe interiors, fittings, and valves. <br />h. Provide temporary caps or plugs over all pipe openings at the end of each day’s work, and <br />when otherwise required or directed by Owner. <br />i. Cutting: Cut pipe from measurements taken at site, not from Drawings. <br />j. Provide screwed or flanged unions at each piece of equipment and where necessary to install <br />or dismantle piping. <br />k. Support all valves independently of the piping system. <br />l. When anchors are required at locations other than equipment, they shall be placed at elbows, <br />valve locations, and at bends in the pipeline. <br />m. Spacing of supports shall be in accordance with the manufacturer’s published <br />recommendations at the maximum design operating temperature of the pipe. <br />n. Use “U” clamps with wide band circumferential contact with cushion spacer or low friction <br />rubber pads. <br />o. Use guides on long runs of piping to maintain alignment and reduce chance of elastic failure of <br />the pipe. Space guides as recommended by manufacturer. <br />p. Do not install pipe when temperature is less than 60 F. <br />q. Contractor shall verify that each component of the plumbing system is compatible with all other <br />parts of the system; that all piping, fixtures, and appurtenances are appropriate; and that all <br />devices necessary for a properly functioning system have been provided. <br />r. Install markers and arrows at the following locations: <br />(i) At intervals not exceeding 50 feet along continuous runs of pipe. <br />(ii) Wherever pipes pass through walls, floors, or panels. <br />(iii) At each valve or equipment connection. <br />(iv) At each branch where it connects to a main line. <br />s. Joints: <br />(i) Make joints in accordance with the pipe manufacturer’s recommendations. <br />(ii) Cut piping accurately and squarely and install without forcing or springing. <br />(iii) Ream out all pipes and tubing to full inside diameter after cutting. Remove all sharp edges <br />on cuts.