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. ๐งฐ 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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Top Puddle Flange Manufacturers in India – GI, SS, MS Options with Price Guide (2025)
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Learn how to select the perfect puddle flange for concrete pipes and water tanks. Compare materials, sizes, coatings, and get expert tips for long-term water sealing.
Introduction: Why Puddle Flange Selection Matters
Choosing the right puddle flange is critical when installing pipes through concrete walls or floors in water tanks, basements, or sewage systems. The wrong flange can lead to leakage, structural damage, or corrosion.
This guide covers:
Types of puddle flanges (MS, GI, SS, PVC)
Key selection criteria
Application-specific recommendations
Price range & supplier tips
What Is a Puddle Flange?
A puddle flangeis a sealing device fixed on a pipe that passes through concrete. It acts as a barrier to prevent water ingress and ensure a watertight bond between pipe and structure.
✅ Used in:
Concrete water tanks
Sewage treatment plants (STPs)
Drainage pipes in basements
Overhead tanks (OHTs)
Pump rooms and wet wells
Types of Puddle Flanges – Based on Material
Type
Description
Common Use
MS (Mild Steel)
Economical, must be coated
Construction, fire pipes
GI (Galvanized Iron)
Zinc-coated for rust resistance
Underground water pipes, tanks
SS (Stainless Steel)
Premium, corrosion-proof
STP, chemical tanks, coastal areas
PVC/UPVC
Lightweight, chemical-resistant
Plumbing, residential tanks
Key Selection Criteria for Puddle Flanges
1. Application Type
Concrete water tank: Use GI or SS for water resistance
STP or ETP: Prefer SS or coated MS for chemical durability
Basement drain pipes: GI or MS (coated) is sufficient
2. Corrosion Resistance
For underground or wet zones, GI/SS is ideal
MS must be coated with bitumen, epoxy, or enamel
3. Pipe Size Compatibility
Match flange ID with pipe OD. Common sizes:
2” to 12” for residential/commercial pipes
14” to 24” for industrial tanks & drains
4. Concrete Bond Strength
Choose a welded or ribbed flange design to improve anchorage with RCC structure.
5. Pressure & Flow Conditions
For high-pressure tanks, prefer SS 304/316 puddle flanges for strength and resistance.
Recommended Puddle Flange for Each Use Case
Application
Best Material
Reason
Water Tank (Overhead or Underground)
GI or SS
Corrosion protection
Basement Drainage
GI or MS
Cost-effective sealing
STP or ETP
SS 316
Chemical resistance
Fire Water Line
MS (coated)
Budget-friendly
Plumbing Pipes in RCC Wall
GI
Long-lasting and water-resistant
Puddle Flange Price Range in India (2025)
Size (Inches)
MS (₹)
GI (₹)
SS (₹)
PVC (₹)
2”
120–180
160–250
400–600
90–120
4”
200–300
280–400
700–950
130–170
6”
300–450
450–600
1000–1500
180–250
8”
500–750
700–950
1600–2200
220–280
Note: Prices vary by thickness (5mm–12mm), coating type, and order quantity.
Top Tips to Choose the Right Flange
✅ For long-term use: Go for GI or SS with ISO-certified manufacturing.
✅ Always check the ID/OD match between pipe and flange.
Introduction GI pipes (Galvanized Iron pipes) are a core component in plumbing, structural, and industrial systems across India. Their zinc coating provides excellent corrosion resistance, making them ideal for water supply lines, irrigation, borewells, fencing, and fabrication. But to ensure proper installation and compatibility, it's crucial to understand the standard GI pipe size chart in mm and inches , as defined by ISI standards (IS:1239 Part 1 and Part 2). This guide provides a comprehensive GI pipe size chart with nominal bore (NB), outside diameter (OD), wall thickness , and equivalent inch-mm conversions , helping buyers, engineers, and plumbers make informed choices. ๐ What is a GI Pipe? A GI pipe is a mild steel pipe that has been galvanized with a layer of zinc. The galvanization process helps prevent rust, thereby extending the pipe's lifespan. These pipes are widely used in: ๐ง Water supply and plumbing ๐ Agricultural irrigation ๐️ Structura...
Looking for the latest GI pipe prices in India for 2025? Whether you're a contractor, builder, or industrial buyer, this guide provides the full GI pipe price list by size (½ inch to 50mm) , covering B Class and C Class pipes from top manufacturers like Jindal and Tata. GI pipe prices in 2025 vary from ₹75 to ₹1,450 per meter, depending on pipe size , class (B/C) , and brand . B Class is commonly used for general water lines, while C Class suits high-pressure applications. ๐งฑ What is a GI Pipe? GI (Galvanized Iron) pipes are mild steel pipes coated with zinc to prevent corrosion. They're widely used in water supply, plumbing, fire-fighting, construction, and industrial Udyog (เคเคฆ्เคฏोเค) sectors. IS Standard: Most GI pipes follow IS:1239 (Part-1) specifications. ๐ GI Pipe Price List by Size (2025) Size (NB) Outer Dia (mm) B Class Price/Mtr (₹) C Class Price/Mtr (₹) ½” (15mm) 21.3 mm ₹75 – ₹90 ₹105 – ₹120 ¾” (20mm) 26.9 mm ₹95 – ₹110 ₹130 – ₹145 1” (25mm) 33.7 mm ₹1...
Introduction MS Pipes (Mild Steel Pipes) are widely used in construction, fabrication, plumbing, and infrastructure sectors across India. As raw material prices and transportation costs fluctuate, it's crucial to stay updated with the latest MS pipe price in India for 2025 to make informed purchasing decisions. This guide covers: Latest rate chart of MS pipes (ERW, round, square, seamless) Price factors Buying tips for industries & traders ✅ Short Summary MS pipe price in India (2025) ranges from ₹90 to ₹350 per meter , depending on pipe size, thickness, shape, coating, and quality. ERW MS pipes are the most commonly used, with average rates around ₹110–₹280/m. ๐ MS Pipe Price Chart – India 2025 (Per Meter) MS Pipe Type Size (Inches) Thickness (mm) Price Range (INR) Application MS ERW Pipe 1" – 4" 2.0 – 4.0 ₹100 – ₹240 Construction, fabrication MS Round Pipe 0.5" – 6" 1.5 – 5.0 ₹90 – ₹270 Scaffolding, general plumbing MS Square Pipe ...
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