Duct G clamps hold rectangular duct flanges together along their sides.
They speed up assembly and keep joints tight.
What are duct g clamps?
Duct flanges, G-clamps and gaskets join rectangular ductwork. The flange profile fixes to each duct end, the gasket sits between the flanges, and clamps hold the joint tight between the corner bolts.
An airtight joint saves fan energy and stops dirty air leaking into ceilings. Therefore, use a gasket on every flange joint.
Further reading
- Air ducts (Wikipedia)
- Gaskets (Wikipedia)
- HVAC systems (Wikipedia)
Key terms explained
- Duct flange
- A formed profile fixed to a duct end for joining.
- G-clamp
- A clip that holds two flanges together.
- Duct gasket
- A foam or rubber strip sealing the flange joint.
Features and benefits
- Flange profiles for rectangular duct.
- Clamps for fast assembly.
- Gasket strips for airtight joints.
- Works with duct corners.
Technical specifications
| Product | Duct G-clamp |
|---|---|
| Size | Confirm with quote |
| 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 duct g clamps
- Office ductwork. Supply and return.
- Kitchen extract. Rigid duct joints.
- Malls. Large duct networks.
- Hospitals. Clean air ducts.
- Factories. Process extract.
- Car parks. Ventilation ducts.
- Air handling units. Connections.
- Repairs. Replacing leaking joints.
How to choose and install
- Match the flange profile to the corners and clamps.
- Fit a gasket on every joint.
- Space clamps along long sides.
- Seal corners with duct sealant.
Why choose Sparks Plumbing Experts
- Tubes and sheets in many sizesPipe insulation tubes and sheets cover common copper and steel pipe sizes.
- Tapes and finishing materialsInsulation tapes and related materials help you seal joints properly.
- Condensation adviceWe help you choose a wall thickness that keeps cold pipes dry in your conditions.
- Matched to your pipeworkOrder insulation together with the copper pipe it covers.
- 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, and we also supply buyers in Uganda and Tanzania.
Related products and accessories
Browse more: HVAC · Insulation · Flanges.
Ordering from Sparks Plumbing Experts
We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. 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 accessories?
Tell us the profile size, duct size 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 accessories outside Nairobi?
Yes. We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. Delivery or courier arrangements are agreed when you confirm the order.
How much does a duct accessory 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.
Does every joint need a gasket?
Yes, for an airtight joint.
How many clamps per side?
As the duct design or standard requires.
Are the parts galvanized?
Confirm with the quote.
Do you supply corners?
Yes, in matching profile sizes.
People also search for
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20, 25 and 30 mm profiles are common.
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A foam strip that seals flange joints.
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Space clamps along long flange sides as the design needs.
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Gaskets and sealant cut leakage.
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Flanges suit larger ducts and higher pressure.
Duct accessories price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.








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