Internal cap 22 mm
Code: HX44/22Product detailed description
Internal cap (fitting blanking plug)
size: 22 mm
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The most important facts about the HEPWORTH system that you should know before self-installation. | ||
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Fully demountable system. | ||
| This means you can assemble the system, later take it apart, and put it back together again. This is useful if you are not entirely sure about your heating installation. | |||
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Installation without any tools. | ||
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One of the biggest advantages of the system is tool-free installation. This means the pipe is simply pushed into the fitting and the internal jaw mechanism secures it in place. To disassemble, we simply unscrew the fitting, slide the jaws off the pipe, then reassemble and tighten the fitting again, and it is ready for use again. |
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Universal use for all types of heating. | ||
| All fittings, tees, elbows and pipes are made of polybutylene, which means you can use it for radiator heating, underfloor heating, or domestic hot water distribution. All diameters are backward compatible. | |||
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Pipe made of polybutylene. | ||
| Polybutylene - the oldest and still the best-proven material for heating and water distribution. | |||
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Pipes with an oxygen barrier | ||
| All pipes are made with an EVOH oxygen barrier, which prevents oxygen molecules from penetrating the heating system. After a few years, oxygen causes boiler corrosion and degrades the heating system. The oxygen barrier prevents this problem. | |||
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Polybutylene is one of the most hygienic materials | ||
| In terms of hygiene, polybutylene achieves the best results. |
Frequently Asked Questions
- How can I check that this part fits my HEPWORTH pipe? Compare the dimension (pipe diameter in mm or inch thread) stated in this product's name with the diameter of your pipe - the HEPWORTH system uses its own precisely defined range of dimensions.
- Does installation have to be carried out by a professional? Clips, anchors and wall plates are standard installation accessories intended for DIY installation as well; however, we recommend having the connection of the pipework into a functioning heating or water system checked by a professional.
Additional parameters
| Category: | installation accessories |
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| Warranty: | 2 years |
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Push-fit Pipe fittings
Push-fit pipes and plumbing fittings are a great alternative to traditional fittings. A quick way to replace or repair plumbing installations around the home. They’re easy to install and don’t need to be soldered, making them suitable for all kinds of piping and fixtures in your home’s plumbing system.
You can create a water-tight seal on any pipes when you use push-fit waste connectors, so you’ll never need to worry about leaks again. Plastic push-fit plumbing fittings are usually demountable, whereas copper fittings are not.
Suitable for hot and cold water and central heating systems our Wavin Hep2O push-fit fittings are available in a range of sizes and come with a 50-year guarantee for extra peace of mind.

Underfloor Heating Pipe
Wavin Hep2O has a range of underfloor heating systems for new and existing floors and offers high quality, proven products that are widely available from plumbers and builders merchants nationwide. Underfloor heating systems consist of a series of pipework that is connected underneath the floor that is linked to the heating system. This allows heated water to pass underneath the floor, and the space above is more evenly heated than with other traditional forms of heating.



