Introduction
Mild Steel (MS) puddle flanges are essential components in civil construction projects, especially for waterproofing and sealing pipe penetrations in concrete slabs, walls, and basements. Choosing the right size and understanding the price trends helps contractors, engineers, and procurement managers plan effectively and ensure durable, leak-proof installations. In this blog, we will explore common MS puddle flange sizes, their applications, price ranges in 2025, and tips for selecting the best option for your civil project.
What is an MS Puddle Flange?
An MS puddle flange is a flat, ring-shaped steel fitting welded or fixed around pipes where they pass through concrete or masonry surfaces. Its primary function is to hold waterproofing material firmly and prevent water leakage at pipe entry points. Made from mild steel, these flanges offer good strength, are cost-effective, and can be painted or galvanized for corrosion resistance.
Common Sizes of MS Puddle Flanges
MS puddle flanges come in various sizes to suit different pipe diameters and construction needs. Here are the most frequently used sizes in civil projects:
| Pipe Size (Diameter) | Flange Outer Diameter | Flange Thickness | Typical Use Case |
|---|
| 50 mm (2 inch) | 150 mm | 5 mm | Small water pipes, drainage |
| 75 mm (3 inch) | 200 mm | 6 mm | Domestic water supply pipes |
| 100 mm (4 inch) | 250 mm | 6 mm | Sewer pipes, plumbing |
| 150 mm (6 inch) | 300 mm | 8 mm | Larger drainage or industrial pipes |
| 200 mm (8 inch) | 350 mm | 8 mm | Industrial applications |
Note: Sizes can be customized based on project requirements.
Price Chart of MS Puddle Flanges in 2025
Prices fluctuate depending on market conditions, steel quality, thickness, and coating. The approximate price ranges (INR) for standard MS puddle flanges in 2025 are:
| Flange Size | Price Range (INR) | Remarks |
|---|
| 50 mm | ₹250 – ₹400 | Basic flange for small pipes |
| 75 mm | ₹350 – ₹550 | Moderate size, versatile usage |
| 100 mm | ₹500 – ₹750 | Common size for plumbing |
| 150 mm | ₹800 – ₹1,200 | Heavy-duty applications |
| 200 mm | ₹1,200 – ₹1,800 | Industrial and commercial use |
Prices may vary by supplier and location. Bulk orders often receive discounts.
Applications of MS Puddle Flanges in Civil Projects
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Basement Waterproofing: Prevent water ingress at pipe penetrations in basement walls and floors.
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Drainage Systems: Seal pipe openings to stop leakage of wastewater or rainwater.
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Water Tanks: Ensure water-tight pipe entries in concrete water reservoirs.
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RCC Walls and Slabs: Used extensively in reinforced concrete construction to maintain structural integrity.
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Industrial Plants: Used for leak-proofing pipes that carry fluids or gases through concrete structures.
How to Choose the Right MS Puddle Flange Size?
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Match Flange to Pipe Diameter: Ensure the flange fits the pipe snugly, allowing enough surface area for waterproofing sealants.
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Consider Concrete Thickness: Larger or thicker slabs may require sturdier, thicker flanges.
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Assess Environmental Conditions: If exposed to moisture or chemicals, consider painted or galvanized flanges for extra protection.
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Budget & Quantity: Bulk purchasing can reduce per-unit costs, so plan accordingly.
Tips for Maintaining MS Puddle Flanges
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Regularly inspect for corrosion, especially if not galvanized or painted.
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Apply protective coatings periodically in moist or corrosive environments.
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Check waterproofing sealant integrity around flanges during maintenance.
Conclusion
MS puddle flanges play a vital role in ensuring water-tight pipe penetrations in civil construction projects. Understanding the common sizes and price ranges helps project managers make informed purchasing decisions and avoid costly waterproofing failures. When selected and installed properly, MS puddle flanges provide a durable, cost-effective solution for many waterproofing challenges in 2025 and beyond.
FAQs
Q1: Can MS puddle flanges be customized?
Yes, sizes and thickness can be customized as per project specifications.
Q2: Are MS puddle flanges rust-resistant?
Mild steel flanges are prone to rust unless coated with paint or galvanization.
Q3: How long does an MS puddle flange last?
With proper maintenance and coating, it can last over 10 years in normal conditions.
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