12.07.2015 Views

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Table No. 10.2(Refer Table No.1 IS 1592-2003)S.No. Classes <strong>Works</strong> Hydraulic TestPressure, TP (MPa)1 2 3(i) 10 1.0(ii) 15 1.5(iii) 20 2.0(iv) 25 2.510.2.3 Nominal diameter10.2.3.1 The nominal diameter of the pipes corresponds to the internal diameterexpressed in millimeters, tolerances excluded. The series of nominal diametersis given in Table No.- 10.3.Table No.- 10.3All dia in millimeters.(Refer Table No.3 IS 1592-2003)50 40060 45080 500100 600125 700150 750200 800250 850300 900350 100010.2.4 Length10.2.4.1 The nominal length of the pipes refers to the length measured between theextremities for pipes with plain ends. It shall not be less than 3 m for pipes witha nominal diameter equal to or less than 200 mm; <strong>and</strong> not less than 4 m forpipes with a nominal diameter exceeding 200 mm.10.2.5 Tolerances10.2.5.1 External diameter of finished endsTolerance on the external diameter at 100mm from ends shall be as follows:(Refer Clause 3.4.1.4 IS 1592-2003)Nominal DiametermmTolerancesmm50 to 300 ± 0.60350 to 500 ± 0.80600 to 700 ± 1.0750 to 1000 ± 1.5Urban Administration & Development Department Page 112

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!