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Travis Perkins£12.14Visit shop Wavin Osma DeepLine gutter union 113mm black 9T909B
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The Osma DeepLine Gutter Union is an essential component for professional installers and homeowners managing 113mm semi-elliptical domestic gutter systems. Its primary benefit is providing a secure, leak-free connection between two gutter lengths while accounting for structural thermal expansion. While highly durable and designed to meet stringent BS EN 607:2004 standards, it is strictly intended for use within the DeepLine system and is not cross-compatible with non-standard gutter profiles.
| Model Part Number | 9T909B |
|---|---|
| Brand | Osma |
No, this union is specifically designed for the 113mm semi-elliptical DeepLine gutter system.
The product conforms to BS EN 607:2004 standards.
You only need basic tools such as a hacksaw for cutting the gutter and a file to deburr the edges.
The union is for the DeepLine gutter system, but it is compatible with RoundLine downpipe systems for the vertical drainage sections.
The markings indicate the correct gap to leave between gutter ends to allow for material movement during thermal expansion and contraction.
Check that the gutter ends were cut square and that the seals are free from debris or grit; re-seat the gutter sections.
Verify that the expansion gap was correctly set according to the markings at the time of installation and adjust if the gap is too narrow.
To install, ensure the gutter ends are cut square and deburred to prevent damaging the internal seals. Align the gutter ends with the center line of the union, paying close attention to the built-in expansion markings to verify the gap is appropriate for the current ambient temperature. Use a silicone lubricant if necessary to help the gutter slide into the union seals. Regular maintenance involves clearing debris from the gutter run at least twice a year to ensure water flows freely through the union without obstruction. Periodically inspect the joint to ensure no signs of displacement or seal degradation, particularly after extreme weather events.
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