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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 236000 - COMMON WORK RESULTS FOR HVAC <br />F. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermoplastic lining; plain, threaded, <br />or grooved ends; and 300 -psig minimum working pressure at 225 deg F. <br />G. Bronze ball valves may be used in lieu of dielectric fittings. <br />3.23 MECHANICAL SLEEVE SEALS <br />A. Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and <br />sleeve. <br />B. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of pipe. Include type and number <br />required for pipe material and size of pipe. <br />C. Pressure Plates: Carbon steel. Include two for each sealing element. <br />D. Connecting Bolts and Nuts: Carbon steel with corrosion - resistant coating of length required to secure <br />pressure plates to sealing elements. Include one for each sealing element. <br />3.24 SLEEVES <br />A. Steel Pipe: ASTM A 53, Type E, Grade B, Schedule 40, galvanized, plain ends. <br />B. Cast Iron: Cast or fabricated "wall pipe" equivalent to ductile -iron pressure pipe, with plain ends and integral <br />waterstop, unless otherwise indicated. <br />C. Stack Sleeve Fittings: Manufactured, cast -iron sleeve with integral clamping flange. Include clamping ring <br />and bolts and nuts for membrane flashing. <br />1. Underdeck Clamp: Clamping ring with set screws. <br />3.25 ESCUTCHEONS <br />A. Description: Manufactured wall and ceiling escutcheons and floor plates, with an ID to closely fit around pipe, <br />tube, and insulation of insulated piping and an OD that completely covers opening. <br />B. One - Piece, Cast -Brass Type: With set screw. <br />1. Finish: Polished chrome - plated and rough brass. <br />3.26 GROUT <br />A. Description: ASTM C 1107, Grade B, nonshrink and nonmetallic, dry hydraulic- cement grout. <br />1. Characteristics: Post - hardening, volume- adjusting, nonstaining, noncorrosive, nongaseous, and <br />recommended for interior and exterior applications. <br />2. Design Mix: 5000 -psi, 28 -day compressive strength. <br />3. Packaging: Premixed and factory packaged. <br />B. Mix and install grout for HVAC equipment base bearing surfaces, pump and other equipment base plates, and <br />anchors. <br />C. Clean surfaces that will come into contact with grout. <br />D. Provide forms as required for placement of grout. <br />E. Avoid air entrapment during placement of grout. <br />F. Place grout, completely filling equipment bases. <br />Reece, Noland & McElrath, Inc. 236000-13 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />