Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

1592-2003. The tolerances on the internal diameters should be as given inAnnex. B. of IS 1592-2003.10.3.4 The assembled joint should be flexible and capable of with standing thespecified hydraulic pressure of the pipes on which they are to be used whenthe pipes are set at the maximum permissible angular deviation indicated bythe manufacturer.10.3.5 Sealing rings used should be of rubber of a type suitable for use with the liquidto be conveyed and should conform to IS 5382, unless otherwise agreed tobetween the purchaser and the manufacturer. They shall also be suitable foruse with the type of jointing device selected. If the pipes are to be used toconvey potable water, the rings shall not affect its suitability for humanconsumption.10.3.6 The cast iron detachable joints should conform to IS 8794.10.4 Marking;10.4.1 Each joint coupling shall be legibly and indelibly marked with the followinginformation:(a) Indication of the source of manufacturer.(b) Batch number;(c) Nominal diameter,(d) Class of coupling(e) Pictorial warning sign as given in IS 12081 (Part 2)10.5 Plain ended cast iron fittings:10.5.1 Plain ended cast iron fittings should be as per IS: 5531. Their weights shouldnot be less than as specified in the code. Fittings having weight more thanspecified weight as per IS: 5531 may be excepted if all otherspecification/Dimensions are as per the code.10.5.2 Weight of some of the fittings are mentions as under:10.5.2.1Table No.-10.4(Refer Table No.1 IS 5531-1988)DiameterWeight in KgClass 10 Class 15 Class 2080 mm 7.60 7.60 8.70100 mm 10.30 10.60 13.0125 mm 14.10 14.80 18.0150 mm 19.0 21.00 25.70200 mm 32.50 36.50 44.70250 mm 48.60 53.40 65.40300 mm 69.50 78.00 95.80350 mm 94.60 105.00 128.00Urban Administration & Development Department Page 114