Fernco Puddle Flanges provide an effective solution against water penetration, reducing the risk of emitted gases in concrete structures which may cause damage to residents and buildings.

During the casting process, the puddle flange material is compressed and when the concrete shrinks during curing, the puddle flange material relaxes to block any ingress paths, providing a pressure-tight seal against water, gases and hydrocarbons such as oil and petrol.

When a pipe is required to pass through a wall or concrete structure it is usually cast at the point of construction. The concrete will not bond to the pipe and will usually shrink during curing, leaving an ingress path along the outside of the pipe allowing materials such as water, gases and hydrocarbons to pass through the structure or building.

The unique Fernco Puddle Flange is specifically designed to connect onto the outside of a pipe which is then cast in concrete. During the casting process the puddle flange material is compressed and when the concrete shrinks during curing the puddle flange material relaxes to block any ingress paths, providing a pressure-tight seal against water, gases (most commonly radon) and hydrocarbons such as oil and petrol.

Fernco Puddle Flanges provide a quick, easy and effective solution. They can be connected to all standard pipe materials such as steel, plastic, stoneware, concrete, cast iron, HDPE etc from sizes 22mm outside diameter to any size above manufactured to project requirements. Common applications include, concrete walls, concrete tanks, manhole chambers, shafts, floor slabs/foundation plates and basements.

• Cost-effective

• Easy to install and widely used as a radon barrier

• Provide a pressure-tight seal against water, gases and hydrocarbons

• Can be connected to all standard pipe materials such as steel, plastic, and stoneware, and installed on walls, floors and ceilings

• Range of sizes available ‘off-the-shelf’

• Made from high-quality EPDM

• Pressure-tight to 10 bar

• High chemical resistance

PF036-044 PUDDLE FLANGE 36 - 44MM

PF045-056 PUDDLE FLANGE 45 - 56MM

PF057-071 PUDDLE FLANGE 57 - 71MM

PF072-084 PUDDLE FLANGE 72 - 84MM

PF085-101 PUDDLE FLANGE 85 - 101MM

PF102-121 PUDDLE FLANGE 102 - 121MM

PF122-136 PUDDLE FLANGE 122 - 136MM

PF156-176 PUDDLE FLANGE 156 - 176MM

PF177-190 PUDDLE FLANGE 177 - 190MM

PF191-212 PUDDLE FLANGE 191 - 212MM

PF213-237 PUDDLE FLANGE 213-237MM

PF245-270 PUDDLE FLANGE 245 - 270MM

PF273-300 PUDDLE FLANGE 273-300MM

PF304-341 PUDDLE FLANGE 304 - 341MM

NEW DESIGN

PFT040 GAS AND WATER PUDDLE FLANGE 42-34MM EPDM + 316 SS

PFT075 GAS AND WATER PUDDLE FLANGE 84-69MM EPDM + 316 SS

PFT110 GAS AND WATER PUDDLE FLANGE 118-1024MM EPDM + 316 SS

Note: Larger puddle flanges (above 341MM in diameter) can be fabricated.

If you require a puddle flange larger than 341MM, contact us.