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

  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. 🧰 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...

How to Choose the Right Puddle Flange for Concrete Pipes & Water Tanks

 Explore the top puddle flange manufacturers in India offering GI, SS, and MS flanges. Find trusted suppliers, compare prices, and choose the right flange for drainage, plumbing, and tank applications.


Introduction: Puddle Flanges in Industrial Use

Puddle flanges are crucial fittings used to prevent water leakage where pipes pass through concrete structures. In India’s growing construction and infrastructure sectors, choosing the right manufacturer is key to ensuring durability and cost-efficiency.

✅ Available Material Options:

  • GI (Galvanized Iron) – Cost-effective and corrosion-resistant
  • SS (Stainless Steel) – High durability and chemical resistance
  • MS (Mild Steel) – Strong and ideal for structural applications

Top Puddle Flange Manufacturers in India (2025)

πŸ”Ή 1. Jindal Udyog Fittings – Delhi NCR

  • GI, MS, and SS puddle flanges available
  • ISI-marked, hot-dip galvanized products
  • Supplies across northern India

πŸ”Ή 2. Nitech Stainless Inc. – Mumbai

  • Premium SS 304/316 puddle flanges
  • Custom thickness and OD available
  • Supplies to pharma, water treatment, and infra sectors

πŸ”Ή 3. Aesteiron Steels LLP – Ahmedabad

  • Manufacturer of stainless and mild steel flanges
  • Offers mill test certificates (MTC) with each batch
  • In-house machining and threading

πŸ”Ή 4. Creative Engineers – Pune

  • Specializes in MS and GI puddle flanges for municipal use
  • Large-scale supplies to metro and highway projects

πŸ”Ή 5. Sri Sai Pipe & Flange – Hyderabad

  • Stockist and supplier of heavy-duty MS and GI puddle flanges
  • Known for reliable delivery and industrial-grade finish

Material-Wise Comparison Table

FeatureGI Puddle FlangeSS Puddle FlangeMS Puddle Flange
MaterialGalvanized IronStainless Steel 304/316Mild Steel
Corrosion ResistanceMedium (zinc-coated)HighLow (unless painted)
CostLowHighModerate
ApplicationsDrainage, PlumbingChemical, Food, WaterConstruction, RCC embeds
Lifespan5–8 years15+ years8–12 years (with coating)

Puddle Flange Price Guide in India (2025)

Size (Inch)GI Price (₹/pc)SS Price (₹/pc)MS Price (₹/pc)
2"₹190 – ₹280₹350 – ₹600₹160 – ₹250
4"₹300 – ₹500₹700 – ₹1,000₹280 – ₹450
6"₹450 – ₹850₹1,200 – ₹1,800₹500 – ₹750
8"₹700 – ₹1,100₹1,800 – ₹2,800₹750 – ₹1,200
10"₹950 – ₹1,500₹2,500 – ₹3,500₹1,100 – ₹1,600

πŸ’‘ Prices vary based on thickness, zinc/steel grade, and surface finish. Contact manufacturers for bulk discounts.


Where Are These Flanges Used?

Puddle flanges are critical in:

  • πŸ—️ Concrete walls and slabs for water pipelines
  • πŸ’§ Underground water tanks
  • 🏒 High-rise building drainage systems
  • πŸ§ͺ Industrial chemical plants
  • 🚧 Sewage treatment and stormwater lines

How to Choose the Right Puddle Flange?

Selection FactorConsideration
EnvironmentChoose SS for corrosive or chemical conditions
BudgetGI or MS are more affordable
Load BearingMS flanges are stronger for structural installations
Coating Required?GI has zinc coating; MS may need paint or epoxy
Pipe SizeMatch inner diameter (ID) and outer diameter (OD)

Certification & Quality Checks to Ask For

  • ISI / BIS certification
  • MTC (Mill Test Certificate)
  • Zinc coating thickness (for GI)
  • Grade confirmation (SS304, SS316)
  • Hydro-test reports (for pressurized systems)

How to Contact Manufacturers for Bulk Orders

To get the best quote and quality:

  1. Send RFQ or BOQ: Mention size, thickness, material, quantity.
  2. Ask for Samples: Especially for large infrastructure jobs.
  3. Verify Dispatch Timelines: Ensure timely delivery at site.
  4. Negotiate Bulk Rates: Ask for per kg or per unit cost for over 100 pcs.

FAQs – Puddle Flange Manufacturers in India

✅ What is the best material for puddle flanges in water tanks?

Stainless Steel (SS) is best due to high corrosion resistance and durability.

✅ Where can I find GI puddle flange manufacturers in India?

Delhi, Mumbai, Ahmedabad, and Hyderabad are key hubs with reliable manufacturers and exporters.

✅ What is the lifespan of a galvanized puddle flange?

Typically 5–8 years, depending on environmental exposure and quality of zinc coating.

✅ Do Indian manufacturers offer customized sizes?

Yes, most manufacturers offer custom OD, thickness, and drilling patterns.

✅ Can I get ISO or ISI-certified flanges in bulk?

Yes, leading Indian manufacturers provide ISI and ISO 9001:2015 certified products for infrastructure use.

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