The more air we can distribute at any one time whether it is through a larger diameter rigid duct or a multiple port radial system, the quieter your system will be and the more efficiently your unit will run. ADM’s independence means that we can offer a wide range of ducting to suit all applications and budgets.
(Image shows 90mm semi-rigid radial ducting running through a metal web joist into a manifold).
Smooth-bore improves air flows; push-fit connections, SAP Appendix Q compliant; available in, 150mm, 125mm and 100mm diameter, also in 204mm x 60mm x 90mm for limited void spaces. Should 180mm, 200mm and 250mm diameter ducting be required is available in metal.
Smooth-bore improves air flows; anti-static lining; SAP Appendix Q and Passive House compliant; ideal for metal web joists and engineered timber; perfect for limited void spaces and renovation projects; up to 60% quicker to install than branch; reduces “cross talk” between rooms; rubber seal on joints ensures 100% air tightness; accommodates longer duct runs; use in conjunction with a multiple port distribution manifold for central air distribution;
This 51mm x 138mm push-fit oval flexible flat pipe is crush resistant and is available in 2m, 20m and 50m rolls. The Flat 51 manifold and rigid ducting can be installed in insulation layer under screed, wall or ceiling; access panel for cleaning and access to distribution pipe; low pressure loss.
We strongly advise against flexible (spiro) ducting of ALL types because of its high air resistance (especially when kinked or restricted). Not only is it easily punctured or crushed but it will also lower the efficiency of any heat recovery unit. This is typically of the kind you might find attached to domestic tumble dryers.