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Buy Twinwall Water Pipe Ducting Coils

Buy coils of blue twinwall ducting for the protection of water mains pipes. We maintain twinwall ducting in most colours to be used in all applications. All our water duct pipes are produced in accordance with UK regulations and are approved for use in the UK. We also maintain a complete range of ducting accessories such as underground mark tapes along with drawcords.

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More Information on Blue Twinwall Duct Pipe for the Protection of Water Mains when Buried Under Ground.

picture of water pipe ducting

Coils of blue duct protect MDPE water mains as they're buried underground. The pipe comes complete with a drawcord and coupler/joiner and has a ribbed outer surface and a smooth inner surface.

When the water mains "pulse" underground, it increases the risk of wear and tear on the materials, and this can sometimes cause breakage or leaking. This is why it must be protected within a suitable ducting system.

It comes with a blue colour to warn anyone who may be digging up the ground that a water main is installed inside. A warning tape should also be used as further protection.

It is available as twinwall coils in lengths of 50m. They may be seen in diameters from 63mm to a large diameter 110mm. They are also supplied with a drawcord allowing the installer to pull the water mains pipe through it with minimal effort. It requires very little preparation, and it's impact resistant and contains joints for effortless setup.

All blue twin wall-ducting coils are supplied complete with drawstrings. It provides the benefits of a single-walled product together with vastly improved strength and durability. The coil's durability ratings are fully satisfied by their wall thicknesses.

They're supplied to match NJUG recommendations - in this case, it is blue to signify that the mains are protected inside. It can be provided in 6 metres lengths or 50-metre coils. The inside wall is smooth to prevent the water from run catching when it is pulled through the duct. If required, utilising two pipe seals could do a joint.

The twinwall water pipe ducting is made from the same machines as the other cable ducting systems that can be found within this category on EasyMerchant. The only real difference is the colour to warn anyone digging what is contained inside.

Access chambers are also kept in stock at EasyMerchant and can be found in the relevant section in the menu. We also stock the galvanised steel lids and covers to complete the system

Features and Advantages

⦁ Internal smooth bore stops the cables from snagging
⦁ Flexible and lightweight, easy to transport
⦁ Impact resistance at low temperatures
⦁ Durable and strong as a result of its corrugated profile

Complies with BS EN 61386-24. BBA approved.

Regulations for Installation:

⦁ Choosing the Right Duct Size

Where the water supply run enters a construction or runs under a construction, it has to be found inside the right duct for accessibility. The duct size used is most commonly in 63mm or 110mm in diameter. There must not be any markings for utilities on the duct, including gasoline, electricity, or electrical.

⦁ Laying the Ducting

The ducting for a supply pipe ought to be laid before the bases are completed to enable the run to be inserted within the protective twinwall once the foundations are finished. The duct ought to be laid below the final ground level of the property at a depth of 1350mm max and 750mm minimum.

⦁ Sealing the Duct

A sealant or a removable seal should be used at each end of the duct. Do not use an oil-based sealant, expanding foam, or another sealant that could harm the pipe. Some contractors use a thin layer of sand or cement, but care is required to prevent contact with the pipe. It could be better to utilise a 'sterile end cap' with a hole with a grommet to permit the pipe to pass through.

⦁ Backfilling

The backfill should be lined with selected earth or sand, not rubble. The trench must be wide enough for your pipework, using a distance of at least 350mm from services such as gas or electricity. If you haven't used an approved contractor, you'll need to notify the local authority when the pipework is complete so that they can set up an inspection. Until this has been completed, the trench should not be backfilled.

Note: Joints or fittings cannot be used to the supply run when inside a duct. Joints should be of an approved substance and not solvent-based.
Frequently asked Questions

⦁ Why are ducting pipes in different colours?

The reason every pipe is in a distinct colour is for safety reasons and to distinguish which ducting is protecting which type of cable.

⦁ Is anti modern slavery part of your policy terms conditions?

Yes. We’re dedicated to making sure that there is no trace modern slavery in all our supply chains or any part of our business.

⦁ Can you give me some pointers on the installation process?

Firstly, put your ducting out on the surface, in the site you want it to be. Next, Use ready-made duct bends to effect changes in course, and then mark your trench. Lastly, dig the trenches in straight lines, and dig the curves to suit the ready-made bends.

⦁ Is it safe to use a credit card when ordering online from EasyMerchant?

Yes. EasyMerchant uses a well-known, secure system for online ordering that is used worldwide.

⦁ What do the different colours for ducting mean?

NJUG Colour Coding:

⦁ Purple: Motorway Communications
⦁ Yellow: Gas Green CCTV
⦁ Red and Black: Power and electricity
⦁ Orange: Traffic signal and street lighting
⦁ Blue: Water
⦁ Grey: Telecommunications
Why Choose Us?

⦁ We are experienced

EasyMerchant are backed by over 50 years of industry experience.

⦁ Our Support Team is Knowledgeable, Fast, and Friendly

We all know how upsetting it can be to have a problem and not get the support you deserve. At EasyMerchant, quality customer service is our priority! Our team of experts is here to help you and we go all-out to offer the best customer service possible.

⦁ Security is Paramount.

At EasyMerchant we enforce and follow Security Best Practices for all our customers when shopping online. 


⦁ Anti Modern Slavery Policy

We’re dedicated to making sure that there is no human trafficking or modern slavery in our supply chains or any part of our business.

⦁ High Quality Products

We stock products that are up to BS EN standards and products, which are fully compatible with one another.

⦁ We Speak Plain English

We want you to understand everything we're doing and what the problem is. No nerd-speak here!

⦁ Fast Response To Requests & Critical Response Time Guaranteed

We get back to you fast, so your order is delivered to your property or building site on time and in excellent condition ready to perform the job at hand.

Order From Us for Premium Twinwall Water Pipe Ducting Coils!

We keep in stock just about any plastic building item that you'll find below ground. If there is an item you're looking for that isn't listed on our website, then please call as if we haven't got it, we'll no doubt be able to get it for you.

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