Laserfiche WebLink
TABLE 4. 1 <br /> PRESSURE CLASS <br /> OUTSIDE 300 PSI 350 PSI <br /> SIZE DIAMETER THICKNESS THICKNESS <br /> ( INCHES) ( INCHES) ( INCHES) ( INCHES) <br /> 3 3 .96 --- 0 .25 <br /> 4 4 . 80 --- 0 .25 <br /> 6 6 .90 --- 0 . 25 <br /> 8 9 . 05 --- 0 .25 <br /> 10 11 . 10 --- 0 .26 <br /> 12 13 .20 --- 0 .28 <br /> 14 15 . 30 0 . 30 0 .31 <br /> 16 17 .40 0 . 32 0 . 34 <br /> 18 19 . 50 0 . 34 0 . 36 <br /> 20 21 . 60 0 . 36 0 . 38 <br /> 24 25 . 80 0 .40 0 .43 <br /> 30 32 . 00 0 . 45 0 .49 <br /> 36 38 . 30 0 . 51 0 . 56 <br /> 42 44 . 50 0 . 52 0 . 63 <br /> 48 50 . 80 0 . 64 0 . 70 <br /> 54 57 . 56 0 . 72 0 . 79 <br /> 60 61 . 61 0 . 76 0 . 83 <br /> 64 65 . 67 0 . 80 0 . 87 <br /> 4. 04 FITTINGS <br /> A. All underground fittings shall be either push-on , restrained , or <br /> mechanical joint. Mechanical joints shall conform to AWWA <br /> Standard Specifications C110/A21 . 10-98 or C153/A21 . 53-00 , or <br /> latest revisions . All aboveground fittings shall be flanged joint. <br /> B . The pressure rating shall be 350 psi . <br /> C . All fittings shall be lined with the same materials as specified for <br /> the pipe , as per paragraph 4 . 05 . <br /> 4. 05 LINING AND COATING <br /> A. Unless otherwise indicated , all ductile iron pipe shall be factory <br /> lined and coated . <br /> B . Lininq : For 4" and larger, the interior of the pipe shall have a <br /> fusion-bonded ceramic epoxy lining . The epoxy material shall be <br /> applied in 1 coat with a minimum dry film thickness of 40 . 0 mils <br /> and shall be per the Approved Manufacturer' s Products List. If <br /> and where directed by the Engineer of Record and the IRCDUS , a <br /> polyethylene encasement shall be provided over pipe and fittings . <br /> C . Coating : Unless otherwise specified , the exterior of the pipe shall <br /> have a bituminous coating to a minimum dry film thickness of 1 . 0 <br /> mil . See Approved Manufacturer's Products List for coating <br /> material . <br /> 4 - 2 <br />