
Puddle Flanges
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Puddle Flanges
Puddle Flanges
Puddle Flanges are specially designed pipe fittings used to create a watertight seal where pipelines pass through concrete walls, floors, tanks, basements, and underground structures. These flanges help prevent water leakage around the pipe penetration, making them an essential component in water treatment plants, reservoirs, sewage systems, and civil construction projects.
At Royal Steel India, we manufacture and supply premium-quality Puddle Flanges in various sizes, materials, and international standards. Our flanges are precision-engineered to provide maximum durability, corrosion resistance, and long-lasting sealing performance in demanding environments.

Puddle Flanges are circular steel rings welded around a pipe before it passes through a concrete structure. Once the concrete is poured, the flange acts as a water barrier, preventing water from seeping along the outside of the pipe. This simple yet effective design ensures a secure and leak-proof pipe penetration in both above-ground and underground installations.
Puddle Flanges are commonly used in new construction as well as retrofit projects where waterproofing is critical.
Key Features
- Provides a reliable watertight seal
- Prevents water seepage through concrete walls and floors
- Strong and durable steel construction
- Excellent corrosion resistance
- Suitable for underground and submerged applications
- Easy to install and weld
- Available in various sizes and thicknesses
- Long service life with minimal maintenance
Available Grades
We manufacture Puddle Flanges in various materials, including:
Available Standards
Our Puddle Flanges are manufactured in accordance with:
- BS Standards
- EN Standards
- DIN Standards
- ASME B16.5 (where applicable)
- Custom drawings and project specifications
Pressure Ratings
Puddle Flanges are generally manufactured based on the project requirements rather than pressure classes. Custom sizes and designs are available to suit different pipe diameters and installation conditions.
Applications
- Water Treatment Plants
- Sewage Treatment Plants
- Underground Pipelines
- Water Storage Tanks
- Concrete Walls and Floors
- Basements
- Pumping Stations
- Reservoirs
- Civil Construction Projects
- Industrial Infrastructure
Why Choose Royal Steel India?
Royal Steel India is a trusted manufacturer, supplier, and exporter of premium-quality Puddle Flanges. We manufacture our products using high-grade raw materials and advanced fabrication techniques to ensure excellent strength, dimensional accuracy, and long-lasting performance. With custom manufacturing options, competitive pricing, and timely delivery, we provide dependable solutions for waterproof pipe penetration applications.
Frequently Asked Questions
What are Puddle Flanges?
Puddle Flanges are steel rings welded around pipes to prevent water leakage where pipes pass through concrete walls, floors, tanks, and underground structures.
What are the advantages of Puddle Flanges?
They provide an effective watertight seal, prevent water seepage, improve structural integrity, are easy to install, and require minimal maintenance.
Which industries use Puddle Flanges?
Puddle Flanges are commonly used in water treatment plants, sewage systems, civil construction, reservoirs, pumping stations, underground pipelines, and industrial infrastructure projects.
What materials are available for Puddle Flanges?
Puddle Flanges are available in Carbon Steel, Stainless Steel, Mild Steel, Galvanized Steel, Duplex Steel, Alloy Steel, Nickel Alloys, and other custom materials based on project requirements.
Need a Quote on Puddle Flanges?
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