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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Best GI Puddle Flange Supplier in India – Buy Direct from Manufacturers

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Looking for the best GI puddle flange supplier in India? Explore top manufacturers offering galvanized iron puddle flanges at competitive prices. Get direct supply for drainage, plumbing, and water tank projects.



Introduction: Why Choose GI Puddle Flanges?

GI (Galvanized Iron) puddle flanges are pipe fittings used to create watertight seals in concrete where pipes pass through slabs or walls. They are coated with a layer of zinc, which enhances their corrosion resistance, making them ideal for drainage, plumbing, and water tank applications.

If you're planning large-scale construction or infrastructure projects, buying GI puddle flanges directly from Indian manufacturers ensures:

  • Competitive pricing

  • Quality assurance

  • Timely delivery

  • Bulk order handling

Top Uses of GI Puddle Flanges

✅ Drainage Systems

Seals drainage pipes passing through concrete, preventing seepage of rainwater or greywater into walls and basements.

✅ Plumbing Projects

Provides leak-proof pipe entry in concrete for domestic and commercial plumbing systems.

✅ Water Tanks

Ensures a waterproof seal around inlet/outlet pipes of overhead or underground water storage tanks.

✅ Sewage and Stormwater Management

Used in municipal or industrial pipe networks for leak protection and structural safety.

Advantages of Buying Direct from GI Puddle Flange Manufacturers

BenefitDescription
Lower PricesNo middlemen—get factory rates on bulk orders
CustomizationManufacturers offer flange size and thickness options
ConsistencyGuaranteed quality and finish in every piece
Bulk SupplySuitable for contractors, builders & industrial projects
Faster DeliveryDirect dispatch reduces transit and delay times

Specifications of GI Puddle Flanges (Standard Options)

ParameterSpecification
MaterialGalvanized Iron (zinc-coated mild steel)
Size Range2” to 24” (DN50 to DN600)
Thickness5mm to 20mm
CoatingHot-dip galvanized (HDG)
StandardsIS 1538, DIN, or custom
UsageEmbedded in RCC (concrete) during construction

Top GI Puddle Flange Suppliers in India

Here are a few trusted GI puddle flange manufacturers and stockists in India:

1. Jindal Udyog Pipe Fittings – Delhi NCR

  • Bulk stock of GI puddle flanges from 2" to 20"

  • ISI-marked fittings with test reports

  • Nationwide supply network

2. Mahalaxmi Flange Works – Mumbai

  • GI and MS flanges for plumbing, drainage, and fire systems

  • Offers CNC-machined flange fittings

3. Bharat Industrial Components – Ahmedabad

  • Customized GI puddle flanges with threaded options

  • Supplies to government and private infra projects

4. Sri Sai Pipe Fittings – Hyderabad

  • Trusted supplier for housing boards and PWD contractors

  • High zinc-coated GI flanges for underground use

GI Puddle Flange Price in India (2025)

Size (Inch)Price (Approx.)
2”₹190 – ₹300
4”₹300 – ₹550
6”₹450 – ₹850
8”₹650 – ₹1100
10”+₹950 – ₹1800+ (depending on thickness)

Note: Prices vary with thickness, coating method, and order quantity. Bulk buyers often receive 10–20% discounts.

How to Place a Direct Order

  1. Send Your BOQ (Bill of Quantities): Mention size, thickness, quantity, and delivery location.

  2. Ask for a Mill Test Certificate: Ensure material and coating standards are met.

  3. Negotiate Bulk Rates: Direct suppliers usually offer 10–15% price relief on orders above ₹50,000.

  4. Check Lead Time: Most suppliers deliver within 5–10 days for in-stock items.

Industrial Udyog Use of GI Puddle Flanges

GI puddle flanges are vital for Udyog (industrial) sectors such as:

  • Wastewater treatment plants

  • Power generation facilities

  • Infrastructure construction (metro, highways)

  • Food processing and pharma factories

Their rust-proof performance and cost-effectiveness make them a go-to solution in concrete-embedded pipework.

FAQs – GI Puddle Flanges

Q1. What makes GI puddle flanges suitable for drainage and plumbing?

GI puddle flanges have a zinc coating that protects them from corrosion, making them ideal for wet environments like drainage and plumbing systems.

Q2. Can I buy GI puddle flanges directly from a manufacturer in India?

Yes, many manufacturers in India offer direct sales for contractors, infrastructure projects, and dealers. Buying direct reduces costs and ensures quality.

Q3. What thickness is standard for GI puddle flanges?

Common thicknesses range from 5mm to 20mm, depending on the application and pipe pressure.

Q4. Are GI puddle flanges rust-proof?

They are corrosion-resistant due to galvanization, but not as rust-proof as stainless steel under extreme chemical exposure.

Q5. How are GI puddle flanges installed?

They are cast into the concrete during construction, allowing the pipe to pass through while forming a tight waterproof barrier.

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