Buy a Black Twinwall Duct Coupler at Low Prices!
We keep a massive stock of ducting products – including these duct couplers. All our cucting is manufactured to BBA and BS EN1386 as required by the Highways Agency. BBA Certified Rigid Duct.
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Installing a coupler
Generally, two twinwall duct pipes will not need to be 100% watertight – but when dealing with electric cabling, it’s important to make sure they are. As such, you should install a watertight seal when using a coupler with electric cabling.
First, you should make sure the end of the underground twinwall ducting pipe you’re dealing with is clean and free of any dirt or debris. If there are any damaged sections, cut these away to ensure your section is not compromised.
Place the seal into the third valley of the corrugated pipe – or, if you’re using 160mm, 137mm, 178mm, or 150mm pipe, place the seal in the second valley.
Next, apply silicone lubricant ensuring both sections of the pipe are off the ground (to ensure no dirt or debris is picked up). Now, push the coupler onto the pipe – making sure the pipe end comes to rest at the stop in the middle of the coupler.
Need any advice or support?
Need to talk to one of the team here about picking or installing your product? No problem – just give us a call, drop us an email, or use our instant messaging service to get in touch. When you do, you’ll be talking to someone who understands your trade – and can give you professional advice that’ll help you get the job done.