Puddle Flange – Waterproof Pipe Penetration Seal for Floors & Walls
Overview of Puddle Flange
A puddle flange, also known as a floor flange, is a specialized plumbing and piping fitting designed to prevent water leakage through wall or floor openings where pipes pass through. Typically disc-shaped or ring-like, puddle flanges are installed around the pipe at the point it penetrates a floor slab, foundation wall, or basement wall, creating a watertight seal.
These flanges are manufactured from durable materials such as carbon steel, PVC, stainless steel, or rubber, ensuring reliable performance across multiple applications. Widely used in building water supply systems, puddle flanges protect structures against seepage, dampness, and foundation damage.
Key Features of Puddle Flange
- Provides waterproof sealing around pipes passing through walls or floors
- Available in multiple designs to suit diverse installation needs
- Manufactured from durable materials such as carbon steel, PVC, stainless steel, or rubber
- Disc-shaped or ring-like design for easy installation
- Prevents fluid seepage that could damage building foundations
- Suitable for both domestic and industrial water supply systems
- Available in both thread type and flange end type designs
Types of Puddle Flanges
- Both Side Thread
- One Side Thread
- Single Side Flange
- Double Side Flange
- One Side Flange & One Side Thread
Generally, thread type puddle flanges are used up to 65NB, while for sizes above 65NB, flange end type puddle flanges are preferred for stronger connections.
Technical Specifications
| Material | Carbon Steel / PVC / Stainless Steel / Rubber |
| Design Options | Thread Type, Flange Type, Combination |
| Size Range | Up to 65NB (Thread Type), Above 65NB (Flange Type) |
| Applications | Water Supply, Building Construction, Plumbing Systems |
| Installation | Pipe Penetrations through Floors, Foundations, Walls |
Applications of Puddle Flange
Puddle flanges are essential in residential, commercial, and industrial buildings where water supply pipes penetrate concrete floors or foundation walls. Their watertight design prevents leakage, seepage, and foundation damage, making them critical in applications such as:
- Basements and underground structures
- Water tanks and sumps
- Building water supply systems
- Industrial pipelines passing through walls or floors
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