250mm Ø

15 Degree Galvanised Mild Steel Ducting Bends

• Stocked sizes from 80mm – 1000mm diameter.
• 80 – 200mm are pressed bends.
• 224mm upwards are segmented bends.

Saddle for 200mm diameter duct.

Branching onto 200mm, 224-250mm, 280-315mm, 355-400mm & 450-560mm duct.

• AØ and is the size of the duct that the saddle is coming off.
• BØ is the size of the duct that you wish to branch onto.
• Please note: Due to the high turn over of this product flange sizes may vary.

Saddle for 224mm diameter duct.

Branching onto 224mm, 250mm, 300mm, 315mm, 355mm, 400mm, 450mm & 500mm duct.

• AØ and is the size of the duct that the saddle is coming off.
• BØ is the size of the duct that you wish to branch onto.
• 224 saddles are fabricated and has a small flange size than the pressed saddle.
• Please note: Due to the high turn over of this product flange sizes may vary.

Curved boots for 250mm diameter duct.

Branching onto 250mm, 280-315mm, 355mm, 400mm, 450mm & 500mm duct.

• AØ and is the size of the duct that the boot is coming off.
• BØ is the size of the duct that you wish to branch onto.

250mm Reducers for Metal Ducting

• Reduce from 250mm Diameter to 100mm, 125mm, 150mm, 160mm, 180mm, 200mm & 224mm
• Galvanised metal reducer.
• Male spigots on each end.

Saddle for 250mm diameter duct.

Branching onto 250mm, 280-315mm, 355-450mm & 450-560mm duct.

• AØ and is the size of the duct that the saddle is coming off.
• BØ is the size of the duct that you wish to branch onto.
• Please note: Due to the high turn over of this product flange sizes may vary.

280mm Reducers for Metal Ducting

• Reduce from 280mm Diameter to 125mm, 150mm, 160mm, 180mm, 200mm, 224mm & 250mm
• Galvanised metal reducer.
• Male spigots on each end.

30 Degree mild steel bend for duct

• 80-200mm diameter bends are pressed.
• 224mm diameter are segmented bends.
• Manufactured in accordance with DW144 specifications.

300mm Reducers for Metal Ducting

• Reduce from 300mm Diameter to 125mm, 150mm, 160mm, 180mm, 200mm, 224mm, 250mm & 280mm
• Galvanised metal reducer.
• Male spigots on each end.

315mm Reducers for Metal Ducting

• Reduce from 315mm Diameter to 150mm, 160mm, 180mm, 200mm, 224mm, 250mm, 280mm & 300mm
• Galvanised metal reducer.
• Male spigots on each end.

355mm Reducers for Metal Ducting

• Reduce from 355mm Diameter to 150mm, 180mm, 200mm, 224mm, 250mm, 280mm, 300mm & 315mm
• Galvanised metal reducer.
• Male spigots on each end.

Please Note: 3m Spiral duct is only available for deliveries into all London boroughs and the South East home counties (Berkshire, Buckinghamshire, Essex, Hertfordshire, Kent, Surrey, and Sussex) .

Contact us for more information for deliveries that are required outside of our normal delivery areas.

400mm Reducers for Metal Ducting

• Reduce from 400mm Diameter to 150mm, 200mm, 224mm, 250mm, 300mm, 315mm & 355mm
• Galvanised metal reducer.
• Male spigots on each end.

45 degree pressed & segmented steel ventilation bends

• Manufactured from galvanised mild steel in accordance with DW144 specifications.
• 80-200mm bends are pressed.
• 224mm and upwards are segmented bends.
• Next day delivery available.

Flat shoes to suit a range of circular duct diameters.

45 degree Y piece

• Equal diameters on all spigots
• Galvanised mild steel.
• Male spigots.
• We can fabricate un-equal Y pieces.

450mm Reducers for Metal Ducting

• Reduce from 450mm Diameter to 200mm, 250mm, 300mm, 315mm, 355mm & 400mm
• Galvanised metal reducer.
• Male spigots on each end.

500mm Reducers for Metal Ducting

• Reduce from 500mm Diameter to 200mm, 250mm, 300mm, 315mm, 355mm, 400mm & 450mm
• Galvanised metal reducer.
• Male spigots on each end.

560mm Reducers for Metal Ducting

• Reduce from 560mm Diameter to 250mm, 300mm, 315mm, 355mm, 400mm, 450mm & 500mm
• Galvanised metal reducer.
• Male spigots on each end.

60 degree steel ducting bends

• Full range of diameters from 80mm – 600mm.
• 80mm to 200mm are pressed bends.
• 224mm and above are segmented bends.
• Next day delivery available on stocked diameters.

600mm Reducers for Metal Ducting

• Reduce from 600mm Diameter to 250mm, 300mm, 315mm, 355mm, 400mm, 450mm, 500mm & 560mm
• Galvanised metal reducer.
• Male spigots on each end.

90 Degree Mild Steel (Galvanised) Bend for Spiral Duct

• 80mm – 1000mm diameters available.
• Large Stock on all diameters stocked.
• Manufactured in accordance with DW144 specifications.

Single nut suspension ring (M08 & M10 tapped nut)

• Two piece centre boss suspension ring, with M08 & M10 tapped nut.
• For duct diameters >450mm use our split rings

Female Coupler

• Use for joining spiral fittings such as 2x 45 degree bends together.
• Galvanised steel female collar.

• Allows two lengths of spiral tube ducting of the same diameter to be connected together.
• Galvanised steel male collar.

Mesh End Cap for Ventilation Duct

• Constructed with a wildlife mesh to prevent animal ingress
• Galvanised ventilation termination cap with mesh.
• 12.5mm square mesh.

Galvanised mild steel roof cowl

• Full range of extractor fan roof vents 100mm – 150mm diameters & 160mm – 630mm diameters.
• Hand made vent cowls.
• Prevent rain ingress when air is extract through a roof.
• Design incorporates a top hat to prevent rain entering the duct
• Fitted with mesh to stop wildlife entering into the duct termination point.

Duct Split Rings

• 80mm – 1000mm spiral suspension rings.
• Easy install.
• Use 1 pair every 2-3m.

Curved Access Doors

• Easy to install.
• Sizes to suit most diameters of circular duct.
• Provide an airtight seal at inspection points.
• Self adhesive disposable duct hole cut out template
• Installation instructions packaged with each access door.

Circular Fire Damper with Drywall Flange

• Stocked sizes are shown.
• Other diameters are available with fast lead times.

Circular Fire Damper with Frame

• Stocked sizes are shown.
• Other diameters are available with fast lead times.

Circular fire rated air transfer grille for use in ventilation duct.

• 38mm thick.
• Approx 60% free area.
• Up to 120 mins fire integrity.
• Non standard sizes are available to order, please contact us with your requirements.

Iris Dampers for circular ducting are available for diameters ranging from 80mm – 400mm.

• Iris dampers allow for simple and precise flow tests to be measured and controlled at a single station.
• Each Iris Damper has manometer connections allowing direct pressure measurements (if required).
• Airflow, pressure drop, and sound requirements are the criteria to consider when using an Iris damper as part of a ventilation duct system.