Fernco Puddle Flange

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Useful Information

What is a Puddle Flange Used For?

The Fernco (previously known as Flexseal) Puddle Flange, is designed to create a watertight and radon barrier seal where pipes pass through concrete walls or slabs. It is essential in preventing water, gases, and hydrocarbons such as oil and petrol from passing through the structure or building. Puddle Flanges are commonly used in applications where pipes penetrate concrete structures, including basements, manhole chambers, and concrete tanks.

Key Features

  • Watertight Seal: Provides a pressure-tight seal against water and gases, including radon, ensuring the safety and integrity of buildings.
  • Versatile Application: Suitable for a wide range of pipe materials and sizes, from steel to HDPE.
  • Easy Installation: Quick and simple to fit, offering a practical solution that does not require adhesives, sealants, or concrete.
  • High Pressure Resistance: Confirmed to be pressure-tight to 10bar through independent testing.
  • Chemical Resistance: Made from high-quality EPDM, resistant to a variety of chemicals. Nitrile material is available for more aggressive environments.

Specifications

  • Size Range: Available from 15mm upwards.
  • Material: Standard made from EPDM Rubber and 1.4301 (304) Stainless Steel. Options for Nitrile and 316 grade stainless steel are available upon request.
  • Pressure Rating: Moulded Puddle Flanges are watertight to 10bar; fabricated versions to 5bar.
  • Temperature Range: Suitable for -50°C to 80°C constant, and up to 100°C intermittently.
  • Tightening Torque: 6Nm / 13Nm (as indicated on the product label).
SKU Fernco Code Size Range (mm) Torque
484712 PF015-025 15 - 25 6Nm
484713 PF026-035 26 - 35 6Nm
484714 PF30-34 30 - 34 6Nm
484715 PF036-044 36 - 44 6Nm
484716 PF045-056 45 - 56 6Nm
484717 PF057-071 57 - 71 6Nm
484718 PF61-69 61 - 69 6Nm
484719 PF72-81 72 - 81 6Nm
484720 PF072-084 72 - 84 6Nm
484721 PF85-96 85 - 96 6Nm
484722 PF085-101 85 - 101 6Nm
484723 PF102-121 102 - 121 6Nm
484724 PF121-135 121 - 135 6Nm
484725 PF122-138 122 - 138 6Nm
484726 PF139-155 139 - 155 6Nm
484727 PF156-176 156 - 176 6Nm
484728 PF177-190 177 - 190 6Nm
484729 PF191-212 191 - 212 6Nm
484730 PF213-237 213 - 237 6Nm
484731 PF245-270 245 - 270 6Nm
484732 PF273-300 273 - 300 6Nm
484733 PF304-341 304 - 341 6Nm

How and Where to Install a Puddle Flange

Installing the Fernco Puddle Flange involves:

  1. Pipe Preparation: Ensure the pipe where the flange will be fitted is clean. The flange's inside diameter may be smaller than the pipe's outside diameter and may require stretching over the pipe. Use pipe lubricant if necessary.
  2. Positioning the Flange: The fitted Puddle Flange should have an outside diameter 100/110mm larger than the pipe. Slide the flange onto the pipe, ensuring it's correctly positioned.
  3. Pouring Concrete: During the concrete pouring process, the rubber body of the Puddle Flange is compressed. Ensure a concrete cover of 50mm around the flange and use waterproof concrete for optimal results.
  4. Maintaining Seal: As the concrete cures and shrinks, the rubber will relax to maintain a watertight seal. Ensure the pipe is fully supported to withstand the concrete pouring process.

Downloads

Fernco Puddle Flange Datasheet

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.

 

Grouped product items
CodeProduct NameList PriceYou SaveYou Pay Quantity
484712Fernco EPDM Puddle Flange 15-25mm £48.07 30%
£33.65
484713Fernco EPDM Puddle Flange 26-35mm £48.07 30%
£33.65
484714Fernco EPDM Puddle Flange 30-34mm £48.07 30%
£33.65
484715Fernco EPDM Puddle Flange 36-44mm £48.07 30%
£33.65
484716Fernco EPDM Puddle Flange 45-56mm £48.87 30%
£34.21
484717Fernco EPDM Puddle Flange 57-71mm £50.54 30%
£35.37
484718Fernco EPDM Puddle Flange 61-69mm £50.54 30%
£35.37
484719Fernco EPDM Puddle Flange 72-81mm £50.96 30%
£35.67
484720Fernco EPDM Puddle Flange 72-84mm £50.96 30%
£35.67
484721Fernco EPDM Puddle Flange 85-96mm £57.63 30%
£40.34
484722Fernco EPDM Puddle Flange 85-101mm £57.63 30%
£40.34
484723Fernco EPDM Puddle Flange 102-121mm £60.91 30%
£42.64
484724Fernco EPDM Puddle Flange 121-135mm £61.35 30%
£42.94
484725Fernco EPDM Puddle Flange 122-138mm £61.35 30%
£42.94
484726Fernco EPDM Puddle Flange 139-155mm £63.83 30%
£44.68
484727Fernco EPDM Puddle Flange 156-176mm £66.29 30%
£46.41
484728Fernco EPDM Puddle Flange 177-190mm £70.88 30%
£49.62
484729Fernco EPDM Puddle Flange 191-212mm £70.88 30%
£49.62
484730Fernco EPDM Puddle Flange 213-237mm £72.10 30%
£50.47
484731Fernco EPDM Puddle Flange 246-270mm £77.09 30%
£53.96
484732Fernco EPDM Puddle Flange 273-300mm £82.05 30%
£57.44
484700Fernco EPDM Puddle Flange 300-399mm £221.52 30%
£155.06
484733Fernco EPDM Puddle Flange 304-341mm £85.40 30%
£59.78
484701Fernco EPDM Puddle Flange 400-499mm £267.47 30%
£187.23
484702Fernco EPDM Puddle Flange 500-599mm £312.72 30%
£218.91
484703Fernco EPDM Puddle Flange 600-699mm £354.82 30%
£248.38
484704Fernco EPDM Puddle Flange 700-799mm £398.77 30%
£279.14
484705Fernco EPDM Puddle Flange 800-899mm £437.53 30%
£306.27
484706Fernco EPDM Puddle Flange 900-999mm £475.06 30%
£332.54
484707Fernco EPDM Puddle Flange 1000-1099mm £513.77 30%
£359.64
484708Fernco EPDM Puddle Flange 1100-1199mm £551.28 30%
£385.90
484709Fernco EPDM Puddle Flange 1200-1299mm £589.11 30%
£412.38
484710Fernco EPDM Puddle Flange 1400-1499mm £664.70 30%
£465.29
484711Fernco EPDM Puddle Flange 1500-1599mm £702.51 30%
£491.76