Anti-vortex.
Alumasc Harmer Roof AV is an economic, general purpose range of outlets that provides anti-vortex performance. Harmer Roof AV incorporates a patented baffle within the grating to prevent water swirl and air entrapment, enabling the outlet to drain at 90% of its pipe capacity.
The Harmer AV Multi Gulley roof outlet is designed to provide multi-directional drainage. Rotated on site, the interchangeable spigot pipe allows for any angled outflow from vertical to horizontal. It directly connects to PVC O-ring socketed pipe or to cast iron and HDPE pipework by means of a suitable coupling.
Material | Cast in grade LM6 aluminium silicon alloy |
Product Reference | Harmer AV Multi Gulley roof outlet |
Type | MAV75, dome grating, 75 mm pipeMAV75/F, flat grating, 75 mm pipeMAV100, dome grating, 100 mm pipeMAV100/F, flat grating, 100 mm pipeAs drawing ___Contractor's choice |
Accessories | - |
Grate extension piece | Not required23 EP, aluminium, 150 mm diameter46 EP, aluminium, 222 mm diameterAs drawing ___Contractor's choice |
Terrace grate | Not required23 TG, aluminiumUse with 150 mm diameter grate extension to raise terrace grate to level of paved surface. 46 TG, aluminiumUse with 222 mm diameter grate extension to raise terrace grate to level of paved surface. As drawing ___Contractor's choice |
Metal deck support plate | Not requiredSP1, 50/75 mm pipe diameterSP2, 100/150 mm pipe diameterAs drawing ___Contractor's choice |
Standard product features | Material: Cast in grade LM6 aluminium silicon alloy. Diameter (visible): 305 mm. Pipe diameter:
Flow rate:
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Product Options | Accessories: – Grate extension piece:
– Terrace grate:
– Metal deck support plate:
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