Description
The 160mm unequal tee branch 90° double socket is an underground drainage fitting used to connect a 110mm branch pipe into a larger 160mm drainage run. It is suitable for foul water and surface water drainage systems where smaller 110mm pipework needs to join a 160mm main line at a right angle.
This Pipelife underground drainage branch is designed for compatible 160mm and 110mm PVC-U underground drainage systems. The 90° branch layout makes it useful for drainage alterations, new installations, repair work and larger domestic or commercial groundwork projects.
The double socket design helps create a neat push-fit connection in the drainage layout. It can be used where a 110mm branch needs to feed into a larger 160mm run, helping reduce the number of separate adaptors needed on site.
160mm Unequal Tee Branch for Underground Drainage
The 160mm unequal tee branch is used where 110mm underground drainage pipe needs to connect into 160mm pipework. This is common where smaller drainage runs, gully lines or branch connections feed into a larger main drainage pipe.
Because this is an unequal branch, it allows two different pipe sizes to meet at the fitting. This helps keep the pipe layout cleaner and can reduce the need for extra reducers around the branch point.
- 160mm to 110mm underground drainage unequal tee branch
- 90° right-angle branch connection
- Double socket underground drainage branch
- Connects 110mm branch pipe into a 160mm drainage run
- Suitable for foul water and surface water drainage systems
- PVC-U underground drainage fitting
- Terracotta colour to match standard underground drainage systems
- Useful for larger domestic, commercial and groundwork drainage layouts
Double Socket Branch Connection
This double socket branch is designed for use with compatible underground drainage pipework. The 160mm side suits the main drainage run, while the 110mm branch connection allows a smaller pipe to enter the system.
Before installation, check the pipe sizes, flow direction and final branch position. The branch should sit correctly in the drainage layout and should not be forced into poor alignment.
Use suitable pipe lubricant on ring seal joints where required. Also, make sure pipe ends are clean before jointing. If pipework is cut to length, make a clean square cut and chamfer the edge before fitting. This helps protect the seal and makes the joint easier to assemble.
160mm Unequal Tee Branch Installation Use
The 160mm unequal tee branch should be installed as part of a properly planned underground drainage system. It is useful where a 110mm pipe from a smaller branch line needs to enter a 160mm main drainage pipe.
Correct bedding and backfill are important around the branch. The pipework and fitting should be evenly supported so the drainage system remains stable after installation. Poor support can place stress on sockets and may affect long-term performance.
Because this is a 90° branch fitting, the drainage layout should include suitable access for future rodding, inspection or maintenance where required. Always follow the site specification, current UK drainage guidance and manufacturer instructions.
160mm to 110mm Drainage Branch for Site Work
The 160mm unequal tee branch is a practical fitting for builders, groundworkers, landscapers and drainage installers working with mixed 160mm and 110mm underground drainage pipework. It can be used on new drainage runs, pipework extensions, repairs and system alterations.
For best results, use compatible pipe and fittings from the same underground drainage system where possible. This helps keep jointing simple and supports a clean, consistent installation.
This fitting is not an access fitting. If inspection or rodding access is needed at this point in the drainage layout, use a suitable access branch, inspection chamber or rodding point as required.
Compatible Underground Drainage Products
TWS stocks a wider range of underground drainage products for trade and site use. This includes 160mm drainage pipe, 110mm drainage pipe, couplers, slip couplers, bends, access fittings, reducers, socket plugs, non-return valves, flexible connectors and testing accessories.
View all 160mm underground drainage products at TWS.
Shop 110mm underground drainage at TWS.
Shop underground drainage at TWS.
For official supplier range information, see the Pipelife PVC underground drainage systems leaflet.
