IS 3004 : 1979 Specification for plug cocks for water supply purposes

1 Scope

1.1 This standard covers plug cocks of 15 mm, 20 mm and 25 mmnominal size with a key head for use underground for water supplypurposes upto 1 MPa working pressure.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 292 :1961Specification for brass ingots and castings

IS 318 :1962Specification for leaded tin bronze ingots andcastings

IS 319 :1974Specification for free cutting brass bars, rodsand sections

IS 1239 : Part I :1973 Specification for mild steel tubes andtubularsand other wrought steel fittings: Part I Mildsteel tubes

IS 4218 : Part I :1976 ISO metric screw threads: Part I Basic anddesign profile