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B. Subject to compliance with requirements,manufacturers offering duct hardware which may be incorporated in the ' <br /> work include the following: <br /> 1. Ventfabrics,Inc. <br /> 2. Young Regulator Co. <br /> 2.05 DUCT ACCESS DOORS <br /> A. General: Provide where indicated,duct access doors of size indicted. <br /> B. Construction: Construct of same or greater gage as ductwork served, provide insulated doors for insulated , <br /> ductwork. Provide flush frames for un-insulated ductwork,extended frames for externally insulated duct Provide <br /> one size hinged, other side with one handle-type latch for doors 12" high and smaller, 2 handle-type latches for <br /> larger doors. <br /> C. Subject to compliance with requirements,manufacturers offering duct access doors which may be incorporated in <br /> the work include the following: <br /> 1. Air Balance Inc. , <br /> 2. Duro Dyne Corp. <br /> 3. Register&Grille Mfg.Co.,Inc. <br /> 4. Ruskin Mfg.Co. <br /> 5. Ventfabrics,Inc. <br /> 6. Zuni Industries,Inc.;Air Systems Div. <br /> 7. Cesco Products. <br /> 8. Nailor. <br /> 2.06 FLEXIBLE CONNECTIONS <br /> A General: Provide flexible duct connections wherever ductwork connects to vibration isolated equipment. Construct <br /> flexible connections of neoprene-coated flameproof fabric crimped into duct flanges for attachment to duct and <br /> equipment. Make airtight joint. Provide adequate joint flexibility to allow for thermal, axial, transverse, and ' <br /> torsional movement,and also capable of absorbing vibrations of connected equipment. <br /> B. Subject to compliance with requirements,manufacturers offering flexible connections which may be incorporated in <br /> the work include the following: <br /> 1. American/Elgen Co.;Energy Div. <br /> 2. Duro Dyne Corp. <br /> 3. Flexaust(The)Co. <br /> 4. Ventfabrics,Inc. <br /> 2.07 DUCT SMOKE DETECTORS <br /> A. Duct smoke detectors supplied under Division 16 and installed by this contractor. <br /> 2.08 EXTRA STOCK <br /> A. Furnish extra fusible links to Owner,one link for every 10 installed of each temperature range;obtain receipt. <br /> 15910-4 No.99132-CP2 , <br />