IS 12818: PVC Casing Pipe Standards in India

Mar 31, 2025
pvc casing pipes

Borewells and deep-soil water reserve extraction require casing pipes made from PVC owing to their effectiveness in purpose. Pipes should have adequate strength and high withstand capabilities as risk of collapse can occur from rough conditions. Like many other products, the Council of India maintains standards for these goods and has set IS 12818 which specifies the criteria for PVC casing pipes pertaining to borehole operations and others like it.


Whether you are dealing with borewell piping systems or planning to install a borewell, knowing IS 12818 will be of paramount importance. This document contains all the specifics related to these standards like their relevance in the civil construction business, the operational success, tangible value in the market, and the cost of PVC casing pipes.

IS 12818 Standards for PVC Casing Pipes

The IS 12818 standard sets the technical guidelines for the design of PVC casing pipes with regard to their performance and safety. Meeting these standards helps boost the structural strength of the pipe, lower the risk of failure, and boosts its versatility for different uses.

1. Categories of PVC Casing Pipes as per IS 12818


The  Bureau of Indian Standards (BIS), also subdivided PVC casing pipes into smaller sections to aid with the classification of wider pipes.

  • CS (Casing Shallow): Used to bore shallow wells where soil pressure is minimal.

  • CM (Casing Medium): Intended for use where soil pressure is moderate and additional support within the pipe is required.

  • CD (Casing Deep): Used for deep boreholes where the soil pressure and physical conditions surrounding the pipe are extreme.

  • SC (Screen Casing): Comes with perforations to filter sand and other particles, ideal for wells with loose soil. 

Understanding these categories helps in choosing the right pipe based on soil conditions and borewell depth.

2. Material and Durability Requirements


PVC casing pipes have to observe a very strict set of guidelines when it comes to material compliance set by the IS 12818 ruling. The following criteria need to be checked: 

  • High Quality Virgin PVC - It's critical to employ an unplasticized polyvinyl chloride (UPVC) to endure the strength requirement of the pipes.

  • Chemical resistance – The pipes should not erode and is resistant to the compounds found in groundwater and hence pipes must noncorrosive. 

  • Impact strength – The material should possess sufficient strength to withstand external forces and underground pressure.

  • UV protection – For pipes which are placed above the ground, additional protection from ultraviolet sunlight should be used.


Meeting these guidelines set by the ruling ensures a free maintenance and extended life for the borewell system.

Also know the Factors Affecting the Lifespan of PVC Casing Pipes

3. Threading and Jointing Specifications

Proper connection and installation of PVC casing pipes are crucial to prevent leaks and maintain water quality. IS 12818 specifies:

  • Threaded Joints: Pipes must have high-precision threads for secure fitting.

  • Leak-Proof Sealing: The joints should prevent contamination and water leakage.

  • Easy Installation: Pipes should be lightweight and easy to handle without requiring heavy equipment.

4. PVC Casing Pipe Price and Factors Affecting Cost

The PVC casing pipe price varies based on several factors:

  • Pipe Category: Deep casing pipes (CD) cost more than shallow casing pipes (CS) due to added strength.

  • Diameter and Thickness: Larger diameters and thicker pipes increase the price.

  • Brand and Quality: Well-known PVC casing pipe manufacturers may charge a premium for superior quality and certification compliance.

  • Market Demand and Supply: Seasonal demand and raw material costs influence pricing.

Before purchasing, compare prices from multiple suppliers and ensure the pipes meet IS 12818 standards for the best value.

Why Choosing the Right PVC Casing Pipe Matters

Selecting the right PVC casing pipe impacts the efficiency and lifespan of your borewell system. Here’s why it’s important:

  • Prevents Borewell Collapse: Pipes with proper thickness and strength can withstand soil pressure.
     

  • Enhances Water Flow: High-quality materials reduce friction loss and improve water extraction efficiency.

  • Minimizes Contamination: Properly sealed pipes prevent chemicals and debris from entering the water source.

  • Cost-Effective: Investing in IS 12818-compliant pipes reduces the need for frequent replacements.

Check this out: 15 Benefits of Using Casing Pipes in Borewell Installation

Utkarsh Pipes and Fittings – Reliable PVC Casing Pipe Manufacturers

At Utkarsh Pipes and Fittings, we provide PVC casing pipes that meet and exceed IS 12818 standards. Whether you need pipes for borewells or areas with loose and sandy soil, our products offer exceptional durability and performance.

  • Best-fit for borewells – Our pipes ensure stability in highly collapsible soil.

  • High strength & reliability – Made from premium-grade UPVC, they offer unmatched durability.

  • Versatile applications – Suitable for deep and shallow borewells, agricultural needs, and industrial setups.

  • Trusted by industries – Our casing pipes are widely used in residential, commercial, and municipal water projects.

When you need PVC casing pipe manufacturers that prioritize quality, reliability, and performance, Utkarsh Pipes and Fittings is the name to trust.

Conclusion

Choosing PVC casing pipes that adhere to IS 12818 standards is crucial for borewell efficiency and long-term performance. Understanding the categories, material specifications, and pricing factors ensures you make an informed decision. Always buy from trusted PVC casing pipe manufacturers like Utkarsh Pipes and Fittings to guarantee quality and durability.

FAQs:

Is ISI mark mandatory for PVC pipes?

Yes, an ISI mark is mandatory for PVC pipes used in critical applications like borewells, drinking water supply, and plumbing, as it ensures compliance with BIS standards for quality and safety.

What are the standard sizes of casing pipe?

The standard sizes of casing pipes as per IS 12818 range from 100 mm (4 inches) to 400 mm (16 inches) in diameter, with varying wall thicknesses depending on the category (CS, CM, CD, SC).

How to size a casing pipe?

To size a casing pipe, consider the borewell diameter, depth, and soil conditions. The casing pipe should be at least 1-2 inches larger than the pump diameter to allow proper water flow. Choose the pipe thickness based on soil pressure—CS for shallow, CM for medium, and CD for deep borewells as per IS 12818 standards.