Description
Universal anti-back up drain is one of the best means of connecting roof systems with 68mm rainwater pipes (standard domestic UK size) on flat roofs, gutters, domestic & commercial buildings. This has a high resistance to UV light, ozone, movement and cracking.
Features:
- The stem piece of the unit has two or more circular ribs which face outwards and when forced into the drain pipe prevent backing-up and form a perfect seal.
- The seal rings are compressed upwards when inserted into the drainpipe and thanks to this pressure fit they guarantee optimal seal within the pipe.
- The passage of water vapour or backing up of liquids into the roof system and particularly into the insulation is thus eliminated.
- The outlet is manufactured with a smooth flange allowing for greater bond strength to the EPDM detail than a regular ridged outlet.
- Square, smooth flange 285x285mm for adhering membrane and PS Tape to.
- 185mm outlet pipe with round flange, which when pushed solidly home into pipe ensures there is no backing up of water between the outlet and the inside of the pipe.
- Internal drain diameter 55mm.
Technical data:
- Brand – ClassicBond
- Universal Anti Back Up Roof Drain
- Material – Synthetic Rubber IGOM CE
- Colour – Black
- Outlet Length – 185mm
- Outlet Internal Diameter – 62mm
- For Pipe Diameter – 68mm






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