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Ducting Size Guide
Kair 90 Degree Vertical Elbow Bend Rectangular
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KAIR 90 DEGREE VERTICAL BEND
This vertical 90 degree elbow bend can be used to run your ductwork around obstacles, along walls and into ceilings and offers superior performance and durability over flexible alternatives.
Kair ducting is designed to be low profile to fit inside ceilings, floor slabs, or to be concealed above kitchen wall units. It is best utilised as a part of a ducting system for high powered cooker hood extractors and whole-house ventilation systems, such as heat recovery systems or mechanical ventilation systems in offices, houses, and apartments.
- Made in the UK using strong high-quality white polystyrene/polypropylene material.
- Max / Min Temperature: +60c / -15c.
- Easy to install and durable, just push-fit duct and fittings together.
- For permanent fixings, seal joints with silicone sealant, solvent cement or tape.
- Kair plastic rigid duct provides superior airflow performance and durability versus 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. Rectangular plastic ducting can be carefully cut to the required size using a hacksaw. Offcuts are always useful to keep to hand for joining two female fittings together.
3. 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. Click here to view our range of pre-insulated plastic ducting.
| Model | DUCVKC239 |
|---|---|
| QS code | QS187 |
| Barcode | 5060272540869 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 110x54 |
| Width (mm) | 115 |
| Weight (kg) | 0.087 |
| Height (mm) | 95 |
| Length (mm) | 90 |
| Socket size (mm) | 110 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polypropylene |
| Pressure loss pa 15 ls | 15.6 |
| Pressure loss pa 30ls | 62.8 |
| Pressure loss pa 60 ls | 252.7 |
| Packaged height (mm) | 95 |
| Packaged length (mm) | 130 |
| Packaged width (mm) | 95 |
| Packaged weight (kg) | 0.092 |
| Model | DUCVKC5612 |
|---|---|
| QS code | QS307 |
| Barcode | 5060272542443 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 204x60 |
| Width (mm) | 211 |
| Weight (kg) | 0.158 |
| Height (mm) | 99 |
| Length (mm) | 99 |
| Socket size (mm) | 35 x 205 x 60 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polypropylene |
| Pressure loss pa 15 ls | 1.14 |
| Pressure loss pa 30ls | 4.52 |
| Pressure loss pa 60 ls | 17.94 |
| Packaged height (mm) | 95 |
| Packaged length (mm) | 95 |
| Packaged width (mm) | 204 |
| Packaged weight (kg) | 0.147 |
| Model | DUCVKC612 |
|---|---|
| QS code | QS344 |
| Barcode | 5060272541767 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 150x70 |
| Width (mm) | 155 |
| Weight (kg) | 0.139 |
| Height (mm) | 113 |
| Length (mm) | 109 |
| Socket size (mm) | 150 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polypropylene |
| Pressure loss pa 15 ls | 1.62 |
| Pressure loss pa 30ls | 5.52 |
| Pressure loss pa 60 ls | 18.83 |
| Packaged height (mm) | 90 |
| Packaged length (mm) | 90 |
| Packaged width (mm) | 207 |
| Packaged weight (kg) | 0.124 |
| Model | DUCVKC710 |
|---|---|
| QS code | QS418 |
| Barcode | 5060272543419 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 234x29 |
| Width (mm) | 240 |
| Weight (kg) | 0.108 |
| Height (mm) | 58 |
| Length (mm) | 58 |
| Socket size (mm) | 234 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polystyrene |
| Pressure loss pa 15 ls | 5.45 |
| Pressure loss pa 30ls | 19.91 |
| Pressure loss pa 60 ls | 72.2 |
| Packaged height (mm) | 57 |
| Packaged length (mm) | 240 |
| Packaged width (mm) | 57 |
| Packaged weight (kg) | 0.108 |
| Model | DUCVKC758 |
|---|---|
| QS code | QS440 |
| Barcode | 5060272542726 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 310x29 |
| Width (mm) | 316 |
| Weight (kg) | 0.155 |
| Height (mm) | 58 |
| Length (mm) | 58 |
| Socket size (mm) | 310 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polystyrene |
| Pressure loss pa 15 ls | 3.09 |
| Pressure loss pa 30ls | 11.48 |
| Pressure loss pa 60 ls | 42.62 |
| Packaged height (mm) | 57 |
| Packaged length (mm) | 315 |
| Packaged width (mm) | 57 |
| Packaged weight (kg) | 0.153 |
| Model | DUCVKC5712 |
|---|---|
| QS code | QS18940 |
| Barcode | 5060272546632 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 220x90 |
| Width (mm) | 226 |
| Weight (kg) | 0.218 |
| Height (mm) | 130 |
| Length (mm) | 130 |
| Temp max | 60 |
| Temp min | -15 |
| Packaged height (mm) | 130 |
| Packaged length (mm) | 130 |
| Packaged width (mm) | 226 |
| Packaged weight (kg) | 0.218 |
| Model | DUCVKC653 |
|---|---|
| QS code | QS372 |
| Barcode | 5060272542177 |
| Product type | Bend |
| Product group | Plastic Ducting |
| Flat system (mm) | 180x90 |
| Width (mm) | 184 |
| Weight (kg) | 0.183 |
| Height (mm) | 136 |
| Length (mm) | 136 |
| Socket size (mm) | 180 |
| Temp max | 60 |
| Temp min | -15 |
| Material | Polypropylene |
| Pressure loss pa 15 ls | 0.36 |
| Pressure loss pa 30ls | 1.13 |
| Pressure loss pa 60 ls | 3.53 |
| Packaged height (mm) | 136 |
| Packaged length (mm) | 136 |
| Packaged width (mm) | 184 |
| Packaged weight (kg) | 0.183 |
17 reviews for Kair 90 Degree Vertical Elbow Bend Rectangular
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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.
DUCVKC239 Kair System 110x54mm Rectangular 90 Degree Vertical Bend - Technical Data Sheet
DUCVKC612 Kair System 150x70mm Rectangular 90 Degree Vertical Bend - Technical Data Sheet
DUCVKC653 Kair System 180x90mm Rectangular 90 Degree Vertical Bend - Technical Data Sheet
DUCVKC5612 Kair System 204x60mm Rectangular 90 Degree Vertical Bend - Technical Data Sheet
DUCVKC5712 Kair System 220x90mm Rectangular 90 Degree Vertical Bend - Technical Data Sheet
Questions and answers of the customers
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Hi Marc, thanks for your help and patience. Just another couple of questions, in the duct run of 8m I can put the extract fan anywhere, what difference does it make near the bathroom or the outside? Also if I extract into the garage I didn’t mention I also have quite a powerful extract fan from the garage to outside? Regards Tony
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QHi Marc, thanks for your help and patience. Just another couple of questions, in the duct run of 8m I can put the extract fan anywhere, what difference does it make near the bathroom or the outside? Also if I extract into the garage I didn’t mention I also have quite a powerful extract fan from the garage to outside? Regards Tonyanswer nowA To be honest, it wouldnt make too much difference. I generally suggest installing it halfway. If you have an extract fan in the garage, then that should be ok, however, if you come to sell the house, it may get picked up, as it wont meet building regs.
To follow on from today’s answer, Thankyou.
I could reduce the number of bends to 3 and the run length to 8m? I am extracting a rarely used shower room through a large garage of 77 cubic metre, could I just extract through the wall to this garage open space?
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QTo follow on from today’s answer, Thankyou. I could reduce the number of bends to 3 and the run length to 8m? I am extracting a rarely used shower room through a large garage of 77 cubic metre, could I just extract through the wall to this garage open space?answer nowA Hi Anthony. It isnt recommended to vent directly into a garage, as you will be filling the garage with extra humidity. With regards to 90 degree bends, they are the equivalent to adding 1m to your duct run for each 90 degree bend added. A fan can only extract so far.I would still suggest the MEVDC2 to be honest.Kindest regards, Marc.
Hello, I have a need to extract a 12.5 cubic metre bathroom, with oblong ducting of 10.1 metres in length with 9, 90 bends (around support steels) what do you recommend for an in-line fan and size of ducting Thanks Tony
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QHello, I have a need to extract a 12.5 cubic metre bathroom, with oblong ducting of 10.1 metres in length with 9, 90 bends (around support steels) what do you recommend for an in-line fan and size of ducting Thanks Tonyanswer nowA Hi. That is a very long duct run, and a lot of 90 degree bends. They will cause a lot of restriction to air flow. The only unit that may be able to deal with that, would be the Nuaire MEVDC2. They are continuous running fans. If you can lessen the amount of 90s that would help, but it is still a long duct run.Kindest regards, Marc.
Kath Sailes (verified owner) –
Very helpful company. We altered on line order day after submitted and they accepted the change and processed order very speedily. Many thanks. We will certainly recommend you.
Brian Nightingale (verified owner) –
This site is the ony one I found these on. Simple to order and delivered in acouple of days.
John Worthington (verified owner) –
Good product and service. Like other reviwer this was only site where product could be found.
Mrs Morgan (verified owner) –
Excellent service and fast delivery. One of the best online companies I have used. No hesitation in recommending this company.
kinga duda (verified owner) –
fast delivery, item as described, thank you
Clive Parsons (verified owner) –
The product I brought was great and did the job.
Robert Walder (verified owner) –
good product and a good service
Chris Halliday (verified owner) –
The right type of bend for f1 corners
HUGH RICHMOND (verified owner) –
tight bend ideal fit
Peter Miles (verified owner) –
Part of a projest – did athe job and great delivery too!
Peter Dinning (verified owner) –
Its ducting. What more can you say!
Kuldip Chexal (verified owner) –
All parts of the 125 set up worked very well. Very satisfied.
Mark Thomason (verified owner) –
just the job
Anthony Beaumont (verified owner) –
Couldnt have done the job without them, excellent value for money.
Zulfiqar Ali (verified owner) –
Very satisfied
Terry Mosley (verified owner) –
no issues good
Leslie Davison (verified owner) –
Reasonable fit, but would have been even better if more rigid. Pretty good all the same!