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

CHAPTER NO.6CAST IRON VALVES6.1 Applicable codes :The Sluice valves, Butterfly valves, Air valves & Non return valves for waterworks purposes shall comply with all currently applicable statutes, regulations,standards and codes. In particular the following standards, unless otherwisespecified herein, shall be referred. In all cases, the latest revision of thestandards/codes shall be referred to. Other IS: Codes not specificallymentioned here but pertaining to the use of Sluice valves, Butterfly valves, Airvalves & Non return valves pipes shall be part of this Specification.I.S. NumberTitleTable No.6.1IS 14846: 2000Super seeding IS 780:1984& IS 2906:1984IS 13095: 1996Sluice valves for water works purposes (50 to 1200mmsize)Butterfly valves for General purposesIS 2685: 1971 Code of practice for selection, installation andmaintenance of sluice valves.IS 5312: 2003 (Part I & II)IS 14845: 2000Non return valve/reflux valve.For air valve.6.2 Sluice Valves for water works purposes. (See Drawing No.-4 & 5)6.2.1 The sluice valves are used in a pipe line for controlling or stopping flow ofwater. These shall be of specified size and class and shall be of inside nonraisingscrew type up to 300mm size and raising or non-raising screw typeabove 300mm with either double flange or double socket ends and cap or handwheel.6.2.2 The body, domes covers, wedge gate spindle, nut, valve seat and stuffing boxshall be of good quality. The bodies, spindles and other parts shall be trulymachined with surface smoothly finished. The area of the water way of thefittings shall be not less than the area equal to the nominal bore of the pipedetails of component are given in table 6.2.Urban Administration & Development Department Page 64