A 25mm duct flange rail suits medium rectangular ducts.
Use 25 mm corners with it.
What is a 25mm duct flange rail?
Rectangular ducts join with flange profiles fixed to each duct end, corners that lock the profiles, and clamps along the sides. Sealant or gasket then makes the joint airtight.
Profiles, corners and clamps must share one profile size. Therefore, order them as a set.
Further reading
- Air ducts (Wikipedia)
- Sealants (Wikipedia)
- Sheet metal (Wikipedia)
Key terms explained
- Flange profile
- A steel rail fixed to a duct end.
- Duct corner
- Links four profile rails and takes a bolt.
- Duct sealant
- Paste that seals duct seams and joints.
Features and benefits
- Profiles in 20, 25 and 30 mm.
- Matching corners.
- Grey and white sealants.
- Flange corners for assembly.
Technical specifications
| Product | Duct flange profile |
|---|---|
| Profile | 25 mm |
| Packing | Confirm with quote |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Sizes, grades and ratings depend on stock and model. Tell us what you need, and we will confirm before you order.
Applications of a 25mm duct flange rail
- Office ducts. Supply and return.
- Kitchen extract. Rigid duct joints.
- Malls. Large ducts.
- Hospitals. Clean air ducts.
- Factories. Process extract.
- Car parks. Ventilation.
- AHU connections. Plenum joints.
- Repairs. Re-sealing joints.
How to choose and install
Use these points when you choose and fit the 25mm duct flange rail.
- Use one profile size per joint.
- Order four corners per duct end.
- Seal every joint.
- Support ducts properly.
Why choose Sparks Plumbing Experts
- Valves, flanges and gaskets togetherComplete a pipeline joint with matching valves, flanges, gaskets and bolts.
- Pressure-rated optionsMany items come in PN16, class 150 or class 300 ratings, so you can match the line.
- Stainless and carbon steelChoose stainless for corrosion resistance or carbon steel where it suits the service.
- Plant maintenance sparesKeep critical spares on hand for planned shutdowns and breakdowns.
- Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
- Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
- Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
- Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
- Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
- Supply across East AfricaWe serve customers across Kenya. We also supply buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan.
Related products and accessories
Browse more: HVAC · Flanges · Ventilation.
Ordering from Sparks Plumbing Experts
To order the 25mm duct flange rail, send the quantity you need and where it is going.
We supply customers across Kenya. We also serve buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.
Request a Quote WhatsApp 0726 086 895
Frequently asked questions
What details do you need to quote duct joining parts?
Tell us the profile size, item and quantity. A photo of the old part, a nameplate or a drawing also helps. Then call or WhatsApp 0726 086 895, or use the quote form on this page.
Do you deliver duct joining parts outside Nairobi?
Yes. We supply customers across Kenya. We also serve buyers in Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan. Delivery or courier arrangements are agreed when you confirm the order.
How much does a duct joining part cost in Kenya?
The price depends on the item, size or model and the quantity. Therefore, send your list with a quote request and we will reply with current figures.
Which profile size do I need?
It depends on duct size and pressure.
How many corners do I order?
Four per duct end.
Is sealant needed with gasket?
Seal corners and seams with sealant as well.
Are parts galvanized?
Confirm with the quote.
Do you sell clamps?
Yes, G-clamps to suit.
Where can I buy 25mm duct flange rail in Kenya?
Buy it from Sparks Plumbing Experts Ltd at KCB Building, Enterprise Road, Industrial Area, Nairobi. We are open Monday to Friday, 8 am to 5 pm, and Saturday, 9 am to 12 noon. You can also order by phone or WhatsApp on 0726 086 895. We deliver across Kenya and to Uganda, Tanzania, Zanzibar, Rwanda, Burundi, DR Congo, Ethiopia and South Sudan.
People also search for
duct flange profile sizes
20, 25 and 30 mm.
duct corners per joint
Four per duct end.
duct sealant colours
Grey and white.
how to seal duct joints
Sealant on seams; gasket between flanges.
duct flange vs tdc
Profile systems bolt sections together at the corners.
Duct joining parts price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
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