The Air Admittance ValvesÊare designed to allow the free entry of air into the sanitary pipework system without the escape of foul gasses into the building
Product is A1Êapproved in accordance with BS EN 12380, it can be installed below the flood level of connected appliances
Tested and approved for use in installations varying between -20¡ & +60¡C (no insulation required)
Airflow: 30.8 L/s
Removal of unsightly ventilation stack
Eliminates the need to work and handle pipe above the roof line
Reduced installation time
The 4Trade brand represents trade quality and value for money
Osma StormLine is a high capacity domestic system with ogee profile - suitable for a maximum roof area of 254m2 (with one downpipe). Use with RoundLine or SquareLine downpipe.
Wavin Osma SquareLine is a 100mm (4") square section gutter system with 61mm square pipe - suitable for a maximum roof area of 178m2 (with one downpipe)
Wavin Osma RoundLine is a 112mm (4.5") gutter system with circular 68mm downpipe. For domestic standard use. Use for a maximum roof area of 163m2 (with one downpipe)
Osma StormLine is a high capacity domestic system with ogee profile - suitable for a maximum roof area of 254m2 (with one downpipe). Use with RoundLine or SquareLine downpipe.
Wavin Osma SquareLine is a 100mm (4") square section gutter system with 61mm square pipe - suitable for a maximum roof area of 178m2 (with one downpipe)
Wavin Osma RoundLine is a 112mm (4.5") gutter system with circular 68mm downpipe. For domestic standard use. Use for a maximum roof area of 163m2 (with one downpipe)