What material grades are covered by this standard?

The standard covers pipes made from PE 63, PE 80, and PE 100 material grades as defined in IS 7328 (Clause 4.1).

What are the standard pressure classes (PN) specified?

The standard includes PN 2.5, PN 4, PN 6, and PN 8. Higher pressure classes can be used if required (Clause 5.2).

What is the requirement for UV protection?

The pipe compound must contain 2.25 ± 0.25 percent of finely dispersed carbon black to protect against UV degradation (Clause 4.1.2).

How should pipes be marked for identification?

Pipes must be marked with the manufacturer's name, material grade (e.g., PE 100), PN class, nominal diameter, and the ISI Certification Mark at intervals of not more than 3 meters (Clause 10.1).

IS 14333

: 1996

High Density Polyethylene (HDPE) Pipes for Sewerage, Industrial Effluent and Drainage

CurrentFrequently UsedSpecificationBIMWater Resources · Drainage, Sewerage and Sanitary Fittings

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This standard specifies the requirements for high-density polyethylene (HDPE) pipes, ranging from 16 mm to 1000 mm diameter, intended for buried sewers, drainage, and the conveyance of industrial and chemical effluents. It covers material grades (PE 63, PE 80, PE 100), dimensions, pressure ratings, and performance criteria for ensuring pipe quality and longevity.

Specifies requirements for HDPE pipes specifically designed for sewerage, industrial effluent, and drainage applications.

Quick Reference Values

Carbon black content2.25 ± 0.25 percent by mass

Melt Flow Rate (MFR) deviation± 20 percent from the value specified by the manufacturer

Longitudinal Reversion at 110°C≤ 3 percent

Minimum Required Strength (MRS) for PE 10010.0 MPa

Minimum Required Strength (MRS) for PE 808.0 MPa

Hydrostatic stress for PE 100 at 20°C (100h)12.4 MPa

Hydrostatic stress for PE 80 at 80°C (165h)4.0 MPa

Practical Notes

The standard primarily focuses on black pipes, as the specified carbon black content provides UV protection crucial for storage and handling before installation.

Jointing is a critical aspect not covered by this standard; butt-fusion or electro-fusion techniques are typically used and require skilled operators and proper equipment to ensure a leak-proof system.

Ensure the correct PN (Pressure Nominal) class is selected based on a comprehensive analysis of internal pressure, external soil/traffic loads, and potential surge pressures.