Watertight up to 10 bar and easy to install, VIPSeal puddle flanges are designed to help seal pipe penetrations through concrete walls, tanks, shafts, foundation plates, manholes and basements. Installed on the external pipe surface before the concrete pour, they act as a barrier to help prevent water or gas ingress around the pipe.
Installed on the external pipe surface to act as a barrier, they diffuse gases and hydrocarbons and are suitable for all standard steel, plastic, clay, concrete and cast iron pipes from DN20 to DN3200 mm making them a perfect solution for any application.
Where are puddle flanges used?
Applications:
- To prevent water or gas getting into buildings via pipe penetrations.
- Domestic and commercial developments.
- Suitable for use with all smooth walled pipes provided that the pipe surface, at the point of installation, is clean, smooth and free of pores or surface imperfections.
- Most pipe sizes can be accommodated from 20mm through to 3200mm diameter.
- Installed on pipes during construction where water penetration has to be prevented.
Notes:
- Puddle flanges are supplied with the ID smaller than the host pipe OD and are stretched over during installation.
- Concrete coverage should be at least 50mm against each surface of the puddle flange using waterproof concrete.
- Depending on the size, puddle flanges have an OD 75-100mm larger than the host pipe OD.
- The pipe must be fully supported to withstand the concrete pouring process as puddle flanges do not provide any axial restraint.
Benefits:
- Tested up to 10 bar water pressure.
- Easy to install and a cost effective solution.
- Can be installed in walls, floors and ceilings
- Good general chemical resistance.


Size range and pressure ratings
VIPSeal puddle flanges are manufactured in EPDM or NBR. EPDM is chemically resistant to a wide range of substances and offers outstanding weather and ozone resistance. For applications in connection with oil and petrol, NBR manufactured puddle flanges are the preferred option.

- 20-354mm
- 10 bar pressure rating
- supplied with 2 x SS tension bands

- 355-559mm
- 10 bar pressure rating
- Supplied with 3 x SS tension bands

- 360mm>
- 8 bar pressure rating
- Clamping band and 3 x SS clamps and tool supplied separately
| VIPSeal Ref No. | Pipe OD From | Pipe OD To |
|---|---|---|
| VPF20 | 18 | 24 |
| VPF25 | 23 | 29 |
| VPF32 | 31 | 37 |
| VPF40 | 40 | 46 |
| VPF50 | 50 | 56 |
| VPF63 | 62 | 69 |
| VPF75 | 73 | 82 |
| VPF90 | 86 | 97 |
| VPF100 | 98 | 109 |
| VPF110 | 108 | 121 |
| VPF125 | 123 | 136 |
| VPF145 | 136 | 155 |
| VPF160 | 158 | 177 |
| VPF180 | 177 | 197 |
| VPF200 | 199 | 224 |
| VPF225 | 220 | 249 |
| VPF250 | 250 | 279 |
| VPF280 | 280 | 314 |
| VPF315 | 315 | 354 |
| VIPSeal Ref No. | Pipe OD From | Pipe OD To |
|---|---|---|
| VPF355 | 355 | 399 |
| VPF400 | 400 | 449 |
| VPF450 | 450 | 499 |
| VPF500 | 500 | 559 |

| VIPSeal Ref No. | Pipe OD From | Pipe OD To |
|---|---|---|
| VPF560 | 560 | 629 |
| VPF630 | 630 | 709 |
| VPF710 | 710 | 799 |
| VPF800 | 800 | 899 |
| VPF900 | 900 | 999 |
| VPF1000 | 1000 | 1150 |
| VPF1200 | 1200 | 1350 |
| VPF1400 | 1400 | 1550 |
| VPF1600 | 1600 | 1750 |
| VPF1800 | 1800 | 1990 |
Accessories
| VIPSeal Reference | Details |
|---|---|
| VPF SS Band | 30mt Coil |
| VPF SS Clamps | 3 x Flange |
| VPF Clamping Tool |
Larger sizes available on request
Installation Notes
Thanks to the easy-lock tension bands, installing a puddle flange takes only a few minutes. The puddle flange is mounted by hand on the pipe and secured with the supplied tension bands. A screwdriver or 6mm nut driver can be used to install the tension band on pipes of up to 315 mm in diameter.
For larger pipes, use a clamping tool. Our puddle flange installation kits (DN20 to DN315 mm) now come with an easy-Lock function that allows for even faster installation on the pipe.
- Tested up to 10 bar water pressure
- Easy to install, cost effective solution
- Can be installed in walls, floors and ceilings
- Good chemical resistance
Installation Video up to 315mm
Installation Video from 355mm
Puddle Flanges FAQs
What is a puddle flange?
A puddle flange is fitted around the outside of a pipe where it passes through concrete, helping prevent water or gas from tracking along the pipe penetration.
Where are puddle flanges used?
They are commonly used in concrete walls, tanks, basements, shafts, manholes, foundation plates and other structures where pipe penetrations need to be sealed.
What pipe sizes are available?
VIPSeal puddle flanges are available for pipe outside diameters from 20mm to 3200mm, with larger sizes available on request.
Are puddle flanges easy to install?
Yes. Smaller sizes can be installed using hand tools, while larger sizes use a clamping system and clamping tool.
Do puddle flanges provide pipe restraint?
No. The pipe still needs to be properly supported during installation and the concrete pour.
Related VIPSeal products
Looking for other pipe sealing products? VIPSeal also supplies wall seals, tank and pipe seals, flexible couplings and large diameter coupling solutions for drainage, construction and civil engineering applications.







