The IS 5219 Part 1 (1969) standard outlines specifications for cast copper alloy 'P' and 'S' traps, including related parts like tailpipes, coupling nuts, and cleanout plugs, used in plumbing fixtures such as washbasins and bathtubs. It details material requirements, dimensions, design, workmanship, and finishes for nominal sizes of 32 mm, 40 mm, and 50 mm, ensuring effective sealing, durability, and system compatibility. This standard is crucial for professionals engaged in the design, manufacture, and installation of sanitary plumbing systems.
Overview
The IS 5219 Part 1 (1969) standard outlines specifications for cast copper alloy 'P' and 'S' traps, including related parts like tailpipes, coupling nuts, and cleanout plugs, used in plumbing fixtures such as washbasins and bathtubs. It details material requirements, dimensions, design, workmanship, and finishes for nominal sizes of 32 mm, 40 mm, and 50 mm, ensuring effective sealing, durability, and system compatibility. This standard is crucial for professionals engaged in the design, manufacture, and installation of sanitary plumbing systems.
Audience
Contents
Structure
This section defines the scope of IS 5219 Part 1 covering the structural and dimensional specifications of 'P' and 'S' traps featuring either externally threaded or plain outlets. Essential dimensions are listed in referenced tables, ensuring proper integration within plumbing systems.
Clarifies terminology related to plumbing traps and describes the critical dimensions with reference to nominal sizes 32, 40, and 50 mm for both externally threaded and plain outlet variants, including threading standards.
Outlines the dimensional details for coupling nuts, blank nuts, and 'P' and 'S' traps, including thread sizes, across flats, axial lengths, and flange measurements for various nominal diameters.
Specifies the material composition requirements for traps and their parts, primarily forgeable brass with defined copper, lead, and zinc content, and limits on impurities to ensure durability and performance.
Details acceptable surface finishes for traps and components such as self-colour, polished, and nickel or chromium plating, alongside washer material standards to guarantee quality and corrosion resistance.
Describes design parameters for coupling nuts, blank nuts, straight tail pipes, including threading, axial lengths, diameters, and wall thicknesses necessary for effective assembly and sealing.
Presents comprehensive measurement data for both 'P' and 'S' traps with externally threaded and plain outlets, specifying internal diameters, water seal depths, outlet lengths, and thread types.
Covers related parts such as tailpipes, coupling nuts, blank nuts, cleanout plugs, removable caps, and washers, including their material requirements and conformity to dimensional tables.
Outlines inspection criteria including the mandatory presence of clean-out plugs, dimensional tolerances for straight and bent tail pipes, and quality assurance measures.
Specifies marking requirements such as manufacturer identification and optional ISI certification marks, along with packaging considerations to maintain compliance with dimensional standards.
Frequently Asked
IS 5219 Part 1 mandates the use of cast copper alloy traps primarily composed of brass with reduced copper content to address the scarcity of copper, tin, and nickel. The standard specifically applies to 'P' and 'S' traps made from such brass alloys, excluding plastics and ferrous metals which are considered for future inclusion. While exact alloy percentages aren't explicitly detailed in the clauses, typical brass compositions used in practice contain approximately 60-70% copper and 30-40% zinc, with minor additions of tin or nickel if any.
According to IS 5219 Part 1 Clause 6.7, 'P' and 'S' traps in nominal sizes 32 mm, 40 mm, and 50 mm have defined dimensions including internal diameters of 30 mm, 38 mm, and 48 mm respectively; minimum water seal depths of 75 mm for 'P' traps and 35 mm for 'S' traps; maximum collar heights of 27 mm for 'P' traps and 22 mm for 'S' traps; outlet lengths varying between 22 mm and up to 165 mm depending on trap type; and outlet threads conforming to IS 2643 with sizes FP 1, FP 1½, and FP 2 respectively.
Per IS 5219 Part 1 Clause 6.4, tailpipes for traps are designed as either straight screwed-in or bent types with external metric screw threads sized M33x1, M42x1, and M52x1 for nominal sizes 32, 40, and 50 mm respectively. The fine 1 mm thread pitch provides enhanced sealing and fit compared to standard 1.5 mm threads. Tailpipes include integral collars that serve as positive stops and sealing surfaces. Minimum thread engagement length is specified as 8 mm to ensure mechanical strength and leak-tight joints.
IS 5219 Part 1 Clause 5.2 permits three types of surface finishes for traps and related parts: natural self-colour finish which is clean and free from grease or tool marks; mechanically polished surfaces producing a shiny appearance; and electroplated nickel or chromium finishes that provide enhanced corrosion resistance and aesthetic value. These finishes apply to copper alloy cast traps in nominal sizes 32 mm, 40 mm, and 50 mm.
To comply with IS 5219 Part 1, castings must be produced from brass containing at least 56% copper, conforming to Grade 3 as per IS 292-1961. Castings should be free from defects such as blow holes, laps, and sand pittings, and both internal and external surfaces must be smooth, clean, and free of sand. No repairs, plugs, or patches are permitted on the castings to ensure structural integrity and durability.
Ask AI about any clause, requirement, or provision in IS 5219 PART 1. Get instant, clause-cited responses powered by our indexed library.
Free tier includes 150 queries (50 AI + 100 Reference) · No credit card required