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

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

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

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S.NoTolerance <strong>and</strong> ovality is given belowTable 8.2(Refer Table No. 2 IS 4984-1995)Outside Diameter(mm)Toleran(only positive tolerances)(mm)Ovality (mm)1 20.0 0.3 1.22 25.0 0.3 1.23 32.0 0.3 1.34 40.0 0.4 1.45 50.0 0.5 1.46 63 0.6 1.57 75.0 0.7 1.68 90.0 0.9 1.89 110.0 1.0 2.210 125.0 1.2 2.511 140.0 1.3 2.812 160.0 1.5 3.213 180.0 1.7 3.614 200.0 1.8 4.015 225.0 2.1 4.516 250.0 2.3 5.017 280.0 2.6 9.818 315.0 2.9 11.119 355.0 3.2 12.520 400.0 3.6 14.021 450.0 4.1 15.622 500.0 4.5 17.523 560.0 5.0 19.624 630.0 5.7 22.125 710.0 6.4 24.98.4 Wall thickness as per allowable hydrostatic design stress-8.4.1 The minimum & maximum wall thickness of pipe for the PE100 grade of pipeas per IS : 4984 for PN6, PN8 & PN10 shall be as per table 8.3.Table No.- 8.3(Refer Table No. 5 (Amendment No.2) IS 4984-1995)Nominal DiaWall Thickness of pipesPN 6 PN 8 PN 10DN Min Max Min Max Min Max1 2 3 4 5 6 720 - - - - - -25 - - - - - -32 - - - - 2.4 2.940 - - 2.4 2.9 3.0 3.550 2.3 2.8 3.0 3.5 3.7 4.363 2.9 3.4 3.8 4.4 4.7 5.4Urban Administration & Development Department Page 90

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