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Ducting Size Guide
Kair Round Pipe – Rigid Straight Ducting
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KAIR ROUND DUCTING PIPE
- Made in the UK.
- Built to last out of high-quality white uPVC plastic material.
- Max / Min Temperature: +60c / -15c.
- Round rigid ducting provides superior airflow performance vs. comparative size rectangular or flexible duct.
- Suitable to use in compliance with Part F Building Regulations.
- Airflow performance independently tested by BSRIA or BRE.
Installation Tips:
1. Kair plastic ducting pipe is lightweight & easy to install. You simply push-fit the duct pipe and fittings together. For permanent fixings, you can seal the joints with a method of your choice (Popular options include silicone sealant, solvent cement, or tape).
2. Plastic ducting can be carefully cut to the required size using a hacksaw. Offcuts are always useful to keep to hand for joining two male fittings
3. Lengths of duct channel can be joined together using a male connector.
4. Use round pipe fixing clips to fix ductwork to walls and ceilings and support ducting tube.
5. If your duct run passes through a particularly cold area, we would recommend considering using our pre-insulated ducting to avoid condensation building up within your ductwork.
| Model | DUCVKC673-PK5 |
|---|---|
| QS code | QS51672 |
| Barcode | 5060272542290 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 150 |
| Width (mm) | 154 |
| Height (mm) | 154 |
| Length (mm) | 2000 |
| Socket size (mm) | 150 |
| Thickness | 4 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 17673 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.2 |
| Pressure loss pa 30ls | 0.8 |
| Pressure loss pa 60 ls | 2.4 |
| Diameter inner mm | 150 |
| Diameter outer mm | 154 |
| Packaged length (mm) | 2001 |
| Packaged weight (kg) | 13 |
| Model | DUCVKC266 |
|---|---|
| QS code | QS219 |
| Barcode | 5060272547080 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 125 |
| Width (mm) | 129 |
| Weight (kg) | 0.3 |
| Height (mm) | 129 |
| Length (mm) | 350 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 12273 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.07 |
| Pressure loss pa 30ls | 0.25 |
| Pressure loss pa 60 ls | 0.67 |
| Diameter inner mm | 125 |
| Diameter outer mm | 129 |
| Packaged height (mm) | 128 |
| Packaged length (mm) | 350 |
| Packaged width (mm) | 128 |
| Packaged weight (kg) | 0.3 |
| Model | DUCVKC242 |
|---|---|
| QS code | QS193 |
| Barcode | 5060272547066 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 100 |
| Width (mm) | 104 |
| Weight (kg) | 0.2 |
| Height (mm) | 104 |
| Length (mm) | 350 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 7855 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.18 |
| Pressure loss pa 30ls | 0.5 |
| Pressure loss pa 60 ls | 1.09 |
| Diameter inner mm | 100 |
| Diameter outer mm | 104 |
| Packaged height (mm) | 103 |
| Packaged length (mm) | 350 |
| Packaged width (mm) | 103 |
| Packaged weight (kg) | 0.2 |
| Model | DUCVKC660 |
|---|---|
| QS code | QS382 |
| Barcode | 5060272547509 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 150 |
| Width (mm) | 152 |
| Weight (kg) | 0.4 |
| Height (mm) | 152 |
| Length (mm) | 350 |
| Packaged height (mm) | 152 |
| Packaged length (mm) | 350 |
| Packaged width (mm) | 152 |
| Packaged weight (kg) | 0.4 |
| Model | DUCVKC250 |
|---|---|
| QS code | QS205 |
| Barcode | 5060272541057 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 100 |
| Width (mm) | 104 |
| Weight (kg) | 0.7 |
| Height (mm) | 104 |
| Length (mm) | 1000 |
| Thickness | 2 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 7855 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.5 |
| Pressure loss pa 30ls | 1.4 |
| Pressure loss pa 60 ls | 3.1 |
| Diameter inner mm | 100 |
| Diameter outer mm | 104 |
| Packaged height (mm) | 102 |
| Packaged length (mm) | 1000 |
| Packaged width (mm) | 102 |
| Packaged weight (kg) | 0.7 |
| Model | DUCVKC267 |
|---|---|
| QS code | QS221 |
| Barcode | 5060272541422 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 125 |
| Width (mm) | 129 |
| Weight (kg) | 0.9 |
| Height (mm) | 129 |
| Length (mm) | 1000 |
| Socket size (mm) | 125 |
| Thickness | 2 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 12273 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.2 |
| Pressure loss pa 30ls | 0.7 |
| Pressure loss pa 60 ls | 1.9 |
| Diameter inner mm | 125 |
| Diameter outer mm | 129 |
| Packaged height (mm) | 127 |
| Packaged length (mm) | 1000 |
| Packaged width (mm) | 127 |
| Packaged weight (kg) | 0.9 |
| Model | DUCVKC670 |
|---|---|
| QS code | QS392 |
| Barcode | 5060272542283 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 150 |
| Width (mm) | 154 |
| Weight (kg) | 1.3 |
| Height (mm) | 154 |
| Length (mm) | 1000 |
| Socket size (mm) | 150 |
| Thickness | 4 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 17673 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.1 |
| Pressure loss pa 30ls | 0.4 |
| Pressure loss pa 60 ls | 1.2 |
| Diameter inner mm | 150 |
| Diameter outer mm | 153.6 |
| Packaged height (mm) | 154 |
| Packaged length (mm) | 1000 |
| Packaged width (mm) | 154 |
| Packaged weight (kg) | 1.3 |
| Model | DUCVKC2692-PK6 |
|---|---|
| QS code | QS51022 |
| Barcode | 5060272541484 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 125 |
| Width (mm) | 129 |
| Weight (kg) | 17 |
| Height (mm) | 129 |
| Length (mm) | 2000 |
| Socket size (mm) | 125 |
| Thickness | 2 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 12273 |
| Material | uPVC |
| Pressure loss pa 15 ls | 0.4 |
| Pressure loss pa 30ls | 1.4 |
| Pressure loss pa 60 ls | 3.8 |
| Diameter inner mm | 125 |
| Diameter outer mm | 129 |
| Packaged height (mm) | 310 |
| Packaged length (mm) | 2150 |
| Packaged width (mm) | 410 |
| Packaged weight (kg) | 17 |
| Model | DUCVKC2992-PK12 |
|---|---|
| QS code | QS51670 |
| Product type | Pipe |
| Product group | Plastic Ducting |
| Round system (mm) | 100 |
| Width (mm) | 104 |
| Height (mm) | 104 |
| Length (mm) | 2000 |
| Socket size (mm) | 100 |
| Temp max | 60 |
| Temp min | -15 |
| Free area | 7855 |
| Material | uPVC |
| Pressure loss pa 15 ls | 1 |
| Pressure loss pa 30ls | 2.8 |
| Pressure loss pa 60 ls | 6.2 |
| Diameter inner mm | 100 |
| Diameter outer mm | 104 |
| Packaged height (mm) | 310 |
| Packaged length (mm) | 2150 |
| Packaged width (mm) | 410 |
| Packaged weight (kg) | 23 |
43 reviews for Kair Round Pipe – Rigid Straight Ducting
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Read our full delivery information
Free Delivery Over £100
For items in stock. Excludes timed and non UK Mainland deliveries.
Cut off time 12:00 (noon)
Orders placed after midday will be shipped the following working day.
Free Delivery Over £100
For items in stock. Excludes timed and non UK Mainland deliveries.
Cut off time 12:00 (noon)
Orders placed after midday will be shipped the following working day.
DUCVKC242 Kair System 100mm Round Pipe - 350mm Length - Technical Data Sheet
DUCVKC250 Kair System 100mm Round Pipe - 1m Length - Technical Data Sheet
DUCVKC2992 Kair System 100mm Round Pipe - 2m Length - Technical Data Sheet
DUCVKC266 Kair System 125mm Round Pipe - 350mm Length - Technical Data Sheet
DUCVKC267 Kair System 125mm Round Pipe - 1m Length - Technical Data Sheet
DUCVKC2692 Kair System 125mm Round Pipe - 2m Length - Technical Data Sheet
DUCVKC660 Kair System 150mm Round Pipe - 350mm Length - Technical Data Sheet
DUCVKC670 Kair System 150mm Round Pipe - 1m Length - Technical Data Sheet
DUCVKC673 Kair System 150mm Round Pipe - 2m Length - Technical Data Sheet
Questions and answers of the customers
-
Hi,
Order Notification: 549752 - Albert Rowland
I purchased the above item
Do you have a suggestion for a cowl that will fit this pipe.
The pipe will be used in the vertical position, not horizontally.
I look forward to your reply.
Thank you.
Albert Rowland.
-
QHi, Order Notification: 549752 - Albert Rowland I purchased the above item Do you have a suggestion for a cowl that will fit this pipe. The pipe will be used in the vertical position, not horizontally. I look forward to your reply. Thank you. Albert Rowland.answer nowA Hi Albert. It is unclear from the order as to what size duct you are referring to. If it is 100mm then you can use either DOM4110BR(also available in grey) or GALHU100, if it is 125mm, then you can use GLHU125 and if it is 150mm then you can use GALHU150.Kind regards, Marc
I need to go from a 125mm I/D Pipe to connect to this pipe can you please tell me the part I would need.
-
QI need to go from a 125mm I/D Pipe to connect to this pipe can you please tell me the part I would need.answer nowA Hi Trevor.You would require a 125-100mm reducer and the part number is VKC603.Kind regards, Marc.
QS51672
1mtr is around £12
2mtr is over £91
is this correct??
-
A Hello AndyThank you for your question. The 2mtr channel only comes in box quantities and are not sold as a single length. If I can help any further please do not hesitate to contact meKind RegardsAnita
I have a canopy hood and need to go from round to rectangular on a 90 degree bend as it enters a roof void
If I go for a larger size equivalent rectangle flue than 125 will it reduce the efficiency ?
-
QI have a canopy hood and need to go from round to rectangular on a 90 degree bend as it enters a roof void If I go for a larger size equivalent rectangle flue than 125 will it reduce the efficiency ?answer nowA Good morning James and thank you for your question.As long as you convert to a flat channel duct of similar air flow, you should be fine. I would suggest using VKC5606 as your elbow, and then utilising 204x60 ducting with an airbrick to the outside.If you have any further questions, please feel free to call me on 020 8463 9514.Kind regards, Marc.
I need to amend my order, I have ben told I require a 100mm back draft and short duct not 150mm as per my order.
Can you advise that I can amend.
Thank you Jeff Pringle
-
QI need to amend my order, I have ben told I require a 100mm back draft and short duct not 150mm as per my order. Can you advise that I can amend. Thank you Jeff Pringleanswer nowA Hi Jeff. I have arranged for order number 483728 to be cancelled. We will email to confirmation of cancellation.Kind regards, Marc.
Hello,
The menu doesnt seem to offer the option to buy a single 2 metre length of duct, only a pack of 6 x 2 metres. Is this correct? Many thanks.
-
QHello, The menu doesnt seem to offer the option to buy a single 2 metre length of duct, only a pack of 6 x 2 metres. Is this correct? Many thanks.answer nowA Good morning James. This is correct. We dont stock ducting in 2m lengths as it costs a lot in shipping fees. We usually get them shipped direct to site for some of the big projects and they will order in pack quantities.If you required 2m, you would need to purchase 2 x 1m of ducting and a connector.Kind regards, Marc.
My new Bosch cookerhood extractor has a 120mm diameter outlet.
Will this 125mm ducting fit?
-
QMy new Bosch cookerhood extractor has a 120mm diameter outlet. Will this 125mm ducting fit?answer nowA Good morning Michael and thanks for the question.If the spigot on the cooker hood is 120mm, then you can use the VKC267 125mm ducting, providing you also buy the DOM519 adaptor. That will sit on the end of the duct and slide over the spigot.Kind regards, Marc.
Would like to buy this item with fittings but need to have 45degree tees in my project - can you supply them to match?
Thanks,
Malc
-
QWould like to buy this item with fittings but need to have 45degree tees in my project - can you supply them to match? Thanks, Malcanswer nowA Hello MalcolmThank you for your question. Please have a look at product QS9739. If I can help any further please do not hesitate to contact meKind RegardsAnita
Hi, I am DIY installing this through the outer wall to attach to a kitchen extractor. the outer diameter is 128 mm as stated in the technical specs. However most core drill bits near this size only go up to 127 mm. The next common size up is the 152mm. It seems excessive to drill this and then have alot to fill. What are the other options for the hole?
-
QHi, I am DIY installing this through the outer wall to attach to a kitchen extractor. the outer diameter is 128 mm as stated in the technical specs. However most core drill bits near this size only go up to 127 mm. The next common size up is the 152mm. It seems excessive to drill this and then have alot to fill. What are the other options for the hole?answer nowA Hello AnthonyThank you for your question. This measurement should be 127mm and will fit through a core drill hole of 127mm. Kind RegardsAnita
Application : shallow water well liner Do you have an end cap for this pipe. + 90 deg elbow. All joints must be solvent weld Total length 4m If you have another pie with slightly thicker wall be good to know Otherwise please advise end cap ciao Phil
-
QApplication : shallow water well liner Do you have an end cap for this pipe. + 90 deg elbow. All joints must be solvent weld Total length 4m If you have another pie with slightly thicker wall be good to know Otherwise please advise end cap ciao Philanswer nowA Hello Phil, The product chosen is air ducting for ventilation systems so not sure if suitable for your application as groundwater or rainwater goods may be more appropriate.However the end cap for metal duct - search code QS6250 will fit.
Can DUCVKC660 be connected to DUCVKC670 using DUCVKC365?
-
A Hello AlexThank you for your question. These 3 items fit together.Kind RegardsAnita
Please could you confirm the outside diameter of the pipe / the appropriate core drill size to install this product through a wall?
Does this dimension differ between DUCVKC660, DUCVKC670 and DUCVKC673?
-
QPlease could you confirm the outside diameter of the pipe / the appropriate core drill size to install this product through a wall? Does this dimension differ between DUCVKC660, DUCVKC670 and DUCVKC673?answer nowA Hello AlexThank you for your question. The C660&C673 will fit through a 152mm core drill hole the C670 will require a 154mm core drill hole or if you have an existing 152mm core drill hole you will require product code DOM2100-6 and a female sleeve MF-150. If i can help any further please do not hesitate to contact meKind RegardsAnita
Hello, Q1 - My Diamond Core Drill bit is 152mm. Will this item fit? Q2 - Is this product compatible with DUCVKC360 to use to vent a kitchen extractor fan out thru a wall? If so, what is the best way to connect - PVC tape?
-
QHello, Q1 - My Diamond Core Drill bit is 152mm. Will this item fit? Q2 - Is this product compatible with DUCVKC360 to use to vent a kitchen extractor fan out thru a wall? If so, what is the best way to connect - PVC tape?answer nowA Hello MarkYes this item will fit through the wall and the c360 bend will fit into the pipe with a bit of sealant on the lip of the bend and the outside joint sealed with some duct tape.Kind RegardsAnita
Will this pipe Model: DUCVKC660
Quick Find Code: QS382 join these 2 items together SYSTEM 150 ROUND - 150MM 90 DEGREE ELBOW BEND
Model: [DUCVKC360]GRAVITY GRILLE 150MM ROUND SPIGOT - WHITE
Model: [DUCVKC292]
-
QWill this pipe Model: DUCVKC660 Quick Find Code: QS382 join these 2 items together SYSTEM 150 ROUND - 150MM 90 DEGREE ELBOW BEND Model: [DUCVKC360]GRAVITY GRILLE 150MM ROUND SPIGOT - WHITE Model: [DUCVKC292]answer nowA HelloThe short answer is yes, straight pipe is a double female connection while the spigots on the bend and the back of the gravity grille are male.
Is the 150mm dia ID or OD
-
A Hello Eric, The item size is 150 ID as per the attached graphic which shows the space requirements of the system as a whole.http://www.i-sells.co.uk/images/eshot/Hot_Deals/Images/layout/C.gifKind regards, Michael
Hi
Whats the internal diameter of this pipe?
-
A Hello John, The internal diameter is 100mm, the outer diameter is 102mm.
what lengths does DUCVKC660 come in
-
A Hello Pauline Thank you for your question The 150mm pipe comes in 1metre and 2meter lengths
Is this the domus part number 1100-5 duct
-
A Hello Mark Thank you for your question. The part number 1100-5 is for 125mm 1 meter pipe our code QS221
Could you please tell me what the outside diameter of this pipe.
-
A Hello John Thank you for your question the outside diameter is 156mm
Hi
What are the internal and external diameters of your 125mm rigid ducting pipe
-
A Hello Alan Thank you for your question. The internal diameter is 125mm and the external diameter is 128mm
What is the outside diametre of the 100mm pipe?
-
A Hello MarkThank you for your questionThe outside diameter is 102mm
Is the pipe diameter internal or external?
Thanks
-
A Diameter - Inner (125mm)Diameter - Outer (128mm)
David McKinnie (verified owner) –
I found exactly what I needed and found the web site great – perhaps a little more info on the product would be helpful – I had to telephone to find out how many plastic ducting couplings I required (a minor point). Glad to see you have reduced the carriage rate as I found the previous rate much too expensive and indeed would have put me off further purchase. Hope this is of some help. ps the person who took my call was super! Best Regards David
Ranald Macdonald (verified owner) –
Excellent service. Was having job locating this size of ducting. Once I found your site it was easy. Many thanks
Rowan Sylvester-Bradley (verified owner) –
Good product, good price, delivered promptly
Timothy Streater (verified owner) –
Good solid unremarkable piece of ducting, just as one would hope. Easily cut using a junior hacksaw.
John Odell (verified owner) –
Does the job at a good price. dreadful delivery by Parcel force. 7days !!
Clive Thorne (verified owner) –
Sturdy construction – did not need to cut, so no view on that. I-sells service excellent.
David Davies (verified owner) –
I ordered a 150mm X 1M round pipe. I received a 150mm X 1M round pipe. As 150mm X 1M round pipes go, it was very good.
William Burke (verified owner) –
very quick delivery and first class product Thank you
Wallace Schulberg (verified owner) –
Excellent and prompt service. Could not find any item in your catalogue to cap this off when not in use. I.e to fit inside your 125mm pipe. Regards Wallace Schulberg.
Pamela Craft (verified owner) –
Exactly as described
Tim Gibbs (verified owner) –
Cheap,delivered on time
Graham Craven (verified owner) –
Items fitted well.thanks
James Shaw (verified owner) –
Cant say much, its a plastic tube
Kenneth Reed (verified owner) –
Its a 150mm pipe does what it says on the tin
Graham Gibson (verified owner) –
Good sturdy quality. Just what I needed for my cooker good ducting
Peter Miles (verified owner) –
Part of a projest – did athe job and great delivery too!
Sam Rowan (verified owner) –
Perfect length, perfect fit and connection to the reducer, just the job
Richard Thomas (verified owner) –
Good quality, great price, fast delivery!
STEPHEN ADAMS (verified owner) –
Arrived in very good time with excellent communication throughout not been used yet but nice handy size.
David Burton (verified owner) –
Exactly as expected. Fits well with the other rigid duct accessories, bends etc. Pefect fit for the spigots on the Vent Axia inline fan (ACM100T) I purchased with this product.
Peter Hayward (verified owner) –
Looks ok and fits other fitting
Peter R Muff (verified owner) –
Does the job well doesnt need 20 characters
Omer Karamanoglou (verified owner) –
good and economical for the job
Robert Hudson (verified owner) –
Exactly what i expected although i only used a few inches – later I spotted on website a shorter length – would have saved me a few pounds. My mistake!
Michael May (verified owner) –
just the ticket
Gary Winham (verified owner) –
Does what it says on the label
Bernie Pratten (verified owner) –
Good pipe. Better quality than expected. Just the job !
Brian Merrett (verified owner) –
Exactly as described Dispatched and received in 24 hours. Well packaged. Good courier company. Will use again. Thank you
Robert Dawson (verified owner) –
This was an integral part of a planned installation and fitted perfectly. The order was made and delivered with no fuss and saved lots against warehouse prices.
Carole Williams (verified owner) –
Perfect, just as described. Customer service excellent, thanks
David Moon Moon (verified owner) –
very good for the job
Colin Brotherston (verified owner) –
Very satisfied with product.
Peter Gower (verified owner) –
Ordered, delivered, fitted…. excellent.
Mark Sharland (verified owner) –
good product
Colin Young (verified owner) –
as expected good quality
Lee Burnip (verified owner) –
Excellent quality excellent price
Les Sanddollor (verified owner) –
I-sells products are always a good standard but it is the quality of service that makes them stand out
Leslie Davison (verified owner) –
Fairly lightweight, so distorts a bit, but quite reasonable.
Brian Pike (verified owner) –
good product with very quick delivery
Simon Hynes (verified owner) –
just what I wanted, and a quick delivery
Haryton Feelib (verified owner) –
Item is good quality
Michael Jones (verified owner) –
Good value, will fit the extractor purchased.
Garrett Finnerty (verified owner) –
Good product as per my expectations