Heavy-Duty GI Puddle Flanges for RCC Wall Pipes – Made by Udhhyog

 

When it comes to sealing pipe entries through RCC (Reinforced Cement Concrete) walls, especially in underground drainage, water tanks, STPs, and basements, the need for durable and corrosion-resistant solutions becomes critical. That’s why top contractors and engineers across India trust Udhhyog’s Heavy-Duty GI Puddle Flanges — engineered specifically for high-performance and long-term leak protection.

🔩 What Are GI Puddle Flanges?

GI (Galvanized Iron) puddle flanges are mild steel flanges coated with a protective zinc layer to enhance their resistance to rust, corrosion, and chemical exposure. When installed around pipes passing through concrete walls or slabs, they serve as a mechanical barrier against water seepage.

At Udhhyog, we manufacture heavy-duty GI puddle flanges in a wide range of sizes and thicknesses that meet IS 1538 and other civil construction standards.

✅ Why Choose Udhhyog GI Puddle Flanges for RCC Wall Pipes?

  1. Leak-Proof RCC Wall Pipe Penetration
    Our GI puddle flanges form a sealed grip within the concrete, blocking water from traveling along the pipe's surface into the structure.

  2. Heavy-Duty Construction
    Made from thick, hot-rolled mild steel and coated with zinc galvanization, Udhhyog flanges are designed to withstand high pressure and harsh conditions.

  3. Corrosion Resistance
    The zinc coating protects the steel core from moisture, chemicals, and soil contact—ideal for underground or wet environments.

  4. Custom Manufacturing Available
    We offer custom collar widths, hole patterns, and flange thicknesses to suit your site’s exact requirements.

🧱 Applications in RCC Structures

Udhhyog’s GI puddle flanges are widely used for:

  • Underground water tanks and sumps

  • Drainage pipes passing through RCC walls

  • Basement outlet lines and foundation ducts

  • STPs and ETPs in industrial zones

  • Firefighting tank walls and manholes

📐 Technical Specifications

ParameterSpecification
Pipe Size50mm to 600mm+
MaterialHot-Rolled MS with Zinc Galvanization
Coating Thickness40–80 microns (avg)
Flange Thickness5mm to 25mm
Collar Width50mm to 150mm
ComplianceIS 1538, ASTM A105
CustomizationAvailable on request (holes, OD, epoxy coating)

🛠️ Installation Tips

  • Fit or weld the GI puddle flange around the pipe before placing it into RCC formwork.

  • Ensure the entire collar is fully embedded into the concrete wall or slab.

  • Use grouting or waterproof sealants for added protection in extreme conditions.

  • Avoid damaging the zinc coating during transport and install to maintain corrosion resistance.

❓ FAQs – GI Puddle Flanges by Udhhyog

Q1: What makes GI better than MS for underground use?
A: GI (galvanized iron) resists corrosion caused by soil moisture and water exposure, offering longer life than bare MS.

Q2: Can I get GI puddle flanges with epoxy coating?
A: Yes. Udhhyog offers double-coated flanges (zinc + epoxy) for aggressive chemical zones or wastewater plants.

Q3: Are bolt holes included in standard GI flanges?
A: Yes. We can provide pre-drilled bolt patterns or solid flanges based on your site requirements.

Q4: Can I use GI puddle flanges with PVC or HDPE pipes?
A: Absolutely. We offer custom inner linings and adapters for plastic pipe compatibility.

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