Fernco Puddle Flange

Prevent leaks around pipelines penetrating poured concrete walls, floors, shafts, tanks, pools, manholes, and structures.

The Fernco Puddle Flange is designed to prevent leaks around pipelines penetrating poured concrete walls, floors, shafts, tanks, pools, manholes, and structures. The flexible gasket is installed during construction on the outside diameter of the pipe where a water tight seal is required. The unique flexible design bonds to concrete and compresses during the pour and curing process providing a leak proof seal against water and gas.

Fernco Puddle Flange Illustration

Benefits

  • Stops Water Infiltration and Exfiltration
  • Stops Radon Gas
  • Easy Installation and Cost-Effective Solution
  • Good Chemical Resistance
  • Suitable for All Pipe Materials
  • Install in Ceilings, Floors and Walls
Fernco Puddle Flange Illustration

Technical Data

Molded Flange

  • Size Range: 5/8" to 18½"
  • Material: EPDM Rubber
  • Clamps: 304 Stainless Steel
  • Pressure Rating: Watertight to 43.5 psi (external water head)
  • Temperature Range: -58°F to 302°F
  • Installation Torque: 60 in-lb

 

Fabricated Flange (custom)

  • Size Range: 11 7/8" to 51"
  • Material: EPDM Rubber
  • Clamps: 304 Stainless Steel
  • Pressure Rating: Watertight to 7.25 psi (external water head)
  • Temperature Range: -58°F to 302°F
  • Installation Torque: 60 in-lb
Molded
Part No. Min. Pipe Size Max. Pipe Size
FRK9602 .63 .98
FRK9603 1.25 1.42
FRK9404 1.50 1.77
FRK9605 1.78 2.20
FRK9606 2.21 2.80
FRK9607 2.81 3.31
FRK9609 3.54 4.13
FRK9611 4.33 4.80
FRK9612 4.92 5.56
FRK9614 5.51 6.10
FRK9616 6.30 6.90
FRK9618 7.09 7.48
FRK9420 7.52 8.46
FRK9422 8.50 9.33
FRK9425 9.69 10.63
FRK9426 10.75 11.81
FRK9431 12.00 13.39
FRK9440 17.17 18.50
Fabricated
Part No. Min. Pipe Size Max. Pipe Size
FRK9503 11.81 15.73
FRK9504 15.74 19.67
FRK9505 19.68 23.61
FRK9506 23.62 27.54
FRK9507 27.55 31.48
FRK9508 31.49 35.42
FRK9509 35.43 39.36
FRK9510 39.37 43.29
FRK9511 43.30 47.23
FRK9512 47.24 51.00

Notes

  • Fitted puddle flanges have an outside diameter ≈4" larger than the pipe onto which they are installed (dependent on size).
  • Concrete cover should be 2" against every surface around the puddle flange.
  • Waterproof concrete should be used to ensure a water tight seal.
  • Puddle flanges do not provide axial restraint so they should not be used when axial loading on the pipe is present. The pipe has to be fully supported to withstand the concrete pouring process.
  • Tighten clamps to 60 in-lb torque
  • Specify pipe OD when ordering