UPVC (Unplasticized Polyvinyl Chloride) pipes for water supply systems are known for their durability and smooth interior surface. UPVC is a recyclable material that provides resistance to rust, corrosion, and chemical deterioration. Their suitability depends on the specific requirements of the water supply application, including temperature, pressure, and environmental conditions.

To ensure the product quality of pipes for water supplies, the Bureau of Indian Standards (BIS) has made it mandatory for manufacturers to undergo BIS registration and obtain the BIS ISI mark before selling it in the market. Manufacturers can use the ISI Mark on their products only after obtaining a license from BIS that is granted after BIS registration. The presence of the ISI mark on a product indicates that it complies with BIS's stringent quality standards.

IS 4985:2021 covers unplasticized PVC pipes for water supplies. This standard specifies the requirements for plain and socket-ended pipes for potable water supplies, including those for use with elastomeric sealing rings. This standard also applies to agricultural pipes.

This standard does not cover unplasticized PVC pipes used in agricultural pump suction and delivery lines, which are covered by IS 12231.The pipes shall be classified by pressure ratings (working pressures) at 27°C as follows:

REQUIREMENTS FOR UPVC PIPES FOR WATER SUPPLIES IS 4985:2021

1.     The material from which the pipe is made shall be primarily unplasticized polyvinyl chloride.

2.     Only those additives necessary to facilitate pipe manufacturing and the production of sound and durable pipe with good surface finish, mechanical strength, and opacity under use conditions may be added.

3.     The additives to be used must be selected from IS 10148 and dispersed uniformly.

4.     When tested in accordance with IS 4669, the composition must be based on PVC resin with a K-value of 64 or greater.

5.     All pipes must be clearly and indelibly marked with the Manufacturer's name or trademark, outside diameter, class of pipe and pressure rating, and batch number as per specification.

6.     The Standard Mark (ISI Mark) may also be applied to each pipe. The Manufacturer must obtain a BIS license from the Bureau of Indian Standards to use a standard mark (ISI Mark).

TEST REQUIREMENTS OF IS 4985:2021

·       Type test

·       Acceptance test

·       Reversion Test

·       Test for opacity

·       Vicat softening temperature test

·       Sulphated Ash content test

·       Hydrostatic pressure test

·       Test for resistance to external blows

Process for BIS ISI Mark Certification

To know the process in detail, please visit:

• ISI Mark Certification for Domestic Manufactures
• ISI Mark Certification for Foreign Manufactures

Under BIS Registration Products ISI and CRS

• BIS CRS Registration For IT Products List
• ISI Mark Registration For ISI Products List

CONCLUSION

UPVC pipes for water supplies has been included in the mandatory ISI Certification Scheme under the IS 4985:2021 standard. This product cannot be exported, imported, or sold in the Indian consumer market without the ISI Mark imprinted.

If you need any assistance with BIS ISI registration for upvc pipes for water supplies or ISI mark certification for upvc pipes for water supplies, you can reach out to Evtlindia. We provide assistance with all documentation formalities with India's BIS office, ensuring a smooth and hassle-free registration experience, guiding you through the entire process from start to finish.

You can contact us via email at contact@evtlindia.com or by phone at 9560935898. Feel free to get in touch with us anytime for the support you need.