How to Use a Puddle Flange in RCC Slab Construction – Step-by-Step Guide

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  A puddle flange is a simple yet essential fitting used in civil construction to prevent water leakage where pipes pass through concrete structures. In RCC (Reinforced Cement Concrete) slabs, these flanges act as a seal that stops water from migrating along the outer surface of a pipe. Whether you are working on water tanks, basements, lift pits, or underground pipelines, installing a puddle flange correctly ensures waterproofing and structural durability. This step-by-step guide from Udhhyog , a leading supplier of GI, MS, and SS puddle flanges in India, explains how to use a puddle flange during RCC slab construction. ๐Ÿงฐ Step-by-Step Guide ✅ Step 1: Choose the Right Puddle Flange Select a puddle flange based on the pipe size and material (MS, GI, or SS). GI puddle flanges are ideal for general drainage and water pipes. Use stainless steel for corrosive environments or coastal zones. At Udhhyog , we provide puddle flanges in custom sizes with...
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Puddle Flange Guide: Types, Details, and Uses for Water Tanks & Piping Systems

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Introduction to Puddle Flanges in Udhhyog & Infrastructure Projects Puddle flanges are essential sealing components used where pipes pass through concrete walls of water tanks, basements, or foundations. In Delhi and across India, they’re widely installed in industrial (udhhyog), municipal, and commercial construction to prevent leakage and ensure long-term durability.

Types of Puddle Flanges

  1. GI (Galvanized Iron) Puddle Flange

    • Made of corrosion-resistant galvanized iron

    • Affordable and commonly used in water tanks

    • Sizes: 2" to 24" OD

  2. SS (Stainless Steel) Puddle Flange

    • Ideal for chemical and sewage systems

    • Grades: SS304, SS316

    • Rust-proof, durable for industrial udhhyog

  3. MS (Mild Steel) Puddle Flange

    • Strong structure for heavy-duty applications

    • Can be epoxy coated for water/sewage use

    • Used in industrial plants and high-pressure piping

Puddle Flange Price List – May 2025 (Delhi NCR)

TypeSize (Inch)Approx. Price (₹/Piece)Coating
GI Puddle Flange4"₹180 – ₹250Galvanized
SS Puddle Flange4"₹450 – ₹650Polished/Matte
MS Puddle Flange4"₹250 – ₹350Epoxy/Painted

Applications of Puddle Flanges in Water & Pipe Systems

  • Concrete water tank penetrations

  • Building basements and slabs

  • Sewage lines and stormwater drains

  • Udhhyog machinery wastewater systems

  • Underground pipelines in municipal utilities

Top GI Puddle Flange Suppliers & Manufacturers in Delhi NCR

Supplier NameAreaProduct SpecialtyVerified Seller
AquaTech FlangesBawana IndustrialGI, MS Puddle Flanges✅
Delhi Pipe TradersMayapuriGI Puddle Flanges (bulk)✅
Shiv Metal Works UdyogNarainaSS & MS flanges for Udhhyog✅
Metro Steel CorporationShahdaraGalvanized iron flanges✅

How to Choose the Right Puddle Flange

  • Check pipe diameter and thickness

  • Match flange material to pipe media (water, sewage, chemical)

  • Ensure IS or ASTM certification

  • Ask for pressure and temperature ratings

  • Prefer suppliers with GMB reviews

Why GI Puddle Flanges Are Ideal for Water Tanks ✅ Corrosion-resistant under wet concrete ✅ Compatible with PVC/HDPE/CI pipes ✅ Budget-friendly for construction projects ✅ Easy installation and long life

Service Areas Covered by Top Manufacturers

  • Delhi: Bawana, Naraina, Mayapuri, Shahdara

  • NCR: Noida, Faridabad, Gurugram

  • PAN India shipping for bulk orders

FAQs

What is a GI puddle flange used for?
It seals pipe penetrations through concrete in water tanks, basements, and drainage lines, preventing leakage and corrosion.

What is the price of GI puddle flange in Delhi?
GI puddle flange costs range from ₹180 to ₹250 per piece for 4-inch sizes, depending on thickness and supplier.

Can I use MS puddle flange in underground pipelines?
Yes, MS puddle flanges with epoxy coating are ideal for underground use in udhhyog and municipal systems.

Which flange is best for chemical waste systems?
SS 316 puddle flanges are preferred due to high chemical and rust resistance.

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