Description
The
160mm to 110mm level invert reducer is designed to reduce compatible underground drainage pipework from 160mm down to 110mm while maintaining the lower invert line through the size transition. This
160mm 110mm drainage reducer provides a practical
underground drainage level invert reducer for larger gravity drainage systems, combining a
160mm to 110mm pipe reducer layout with durable
PVC-U drainage reducer construction. The fitting has a 110mm ring-seal socket connection and a 160mm plain spigot end, allowing the larger end to insert directly into a compatible 160mm socketed fitting.
160mm to 110mm Level Invert Reducer
The
160mm to 110mm level invert reducer provides a transition between two different underground drainage pipe sizes without centrally aligning the two bores. Instead, the bottom of the smaller 110mm outlet is positioned to maintain the drainage invert as closely as possible with the larger 160mm pipe.
Choosing a 160mm to 110mm Level Invert Reducer
Choose the
160mm to 110mm level invert reducer where a 160mm underground drainage run needs to reduce to compatible 110mm pipework while maintaining a smoother gravity flow path. This makes it useful where a simple centred reducer could otherwise create an unnecessary step along the bottom of the drainage run.
160mm 110mm Drainage Reducer
The
160mm 110mm drainage reducer allows two commonly used underground drainage sizes to be connected within the same system. The 160mm end is a plain spigot sized to fit into a compatible 160mm ring-seal socket, while the 110mm end incorporates a socket and sealing ring for connecting compatible 110mm pipe or fittings.
160mm 110mm Drainage Reducer Connections
When installing the
160mm 110mm drainage reducer, check that all sockets, seals and pipe surfaces are clean and free from grit or damage. Use suitable underground drainage lubricant where required and insert each connection squarely without displacing the sealing ring.
Underground Drainage Level Invert Reducer
An
underground drainage level invert reducer differs from a conventional concentric reducer because the smaller connection is offset rather than positioned centrally within the larger diameter. This offset profile helps keep the bottom flow channel aligned through the change in pipe size.
Why Use an Underground Drainage Level Invert Reducer?
An
underground drainage level invert reducer can help provide a smoother transition where gravity drainage reduces from a larger pipe diameter to a smaller one. Maintaining the invert can reduce unnecessary changes in the bottom level of the pipe system and helps provide a more continuous route for wastewater and surface water.
160mm to 110mm Pipe Reducer
This
160mm to 110mm pipe reducer is suitable for compatible non-pressure underground drainage systems where the main pipe size needs to decrease from 160mm to 110mm. A
160mm to 110mm pipe reducer may be required on domestic, commercial and groundwork drainage layouts where different nominal pipe sizes meet.
Installing a 160mm to 110mm Pipe Reducer
When fitting the
160mm to 110mm pipe reducer, make sure the offset is orientated correctly so the lower internal invert remains aligned with the drainage route. The adjoining pipework should be correctly supported and bedded to avoid placing excessive load on the reducer or its connections.
PVC-U Drainage Reducer
This type of
PVC-U drainage reducer forms part of a compatible underground drainage and sewerage system. PVC-U is widely used for below-ground gravity drainage because it provides a lightweight, corrosion-resistant and straightforward push-fit pipe system.
PVC-U Drainage Reducer Applications
The
PVC-U drainage reducer can be used within suitable systems including:
- Foul-water underground drainage
- Surface-water drainage
- Rainwater drainage
- Domestic groundworks
- Commercial drainage systems
- Drainage alterations and extensions
- Gravity sewer installations
110mm Ring Seal Socket Connection
The 110mm side incorporates a ring-seal socket for push-fit connection to compatible drainage components. Make sure the sealing ring is correctly seated before assembly and use an appropriate drainage lubricant to reduce the risk of damaging or displacing the seal.
160mm Plain Spigot Connection
The 160mm side is formed as a plain spigot with the external diameter of compatible 160mm drainage pipe. This means the reducer can insert directly into a suitable 160mm socket, bend, branch, coupler or other compatible ring-seal fitting.
Level Invert vs Standard Reducer
A standard centred reducer positions the smaller pipe around the centreline of the larger connection. A level invert reducer offsets the smaller outlet so the bottom internal flow line is maintained more closely through the reduction. This is particularly useful in gravity drainage where maintaining an appropriate flow path through changes in diameter is important.
160mm to 110mm Level Invert Reducer Installation
Before installing the
160mm to 110mm level invert reducer, inspect both ends of the fitting and adjoining pipework for damage or contamination. Orientate the offset correctly, lubricate the ring-seal connection where required and make sure the pipework is properly aligned before backfilling.
EN 1401 Underground Drainage
This fitting is intended for use within compatible PVC-U non-pressure underground drainage systems manufactured to EN 1401 requirements. BS EN 1401-1 covers PVC-U piping systems for non-pressure underground drainage and sewerage applications. Further information is available from the
BSI BS EN 1401-1 standard reference.
160mm to 110mm Level Invert Reducer Applications
The
160mm to 110mm level invert reducer is suitable for compatible applications including:
- Reducing 160mm drainage down to 110mm
- Foul-water drainage
- Surface-water drainage
- Rainwater drainage systems
- Domestic underground drainage
- Commercial groundworks
- Drainage repairs and alterations
- Gravity sewer systems
160mm to 110mm Level Invert Reducer Key Features
- Reduces 160mm underground drainage to 110mm
- Level invert / offset reducer configuration
- 110mm ring-seal socket connection
- 160mm plain spigot connection
- PVC-U underground drainage construction
- Designed to maintain the lower drainage flow line
- Suitable for compatible non-pressure gravity drainage
- Suitable for foul-water and surface-water systems
- EN 1401 underground drainage system specification
Shop 160mm Underground Drainage
Browse our complete
160mm Underground Drainage range for pipes, bends, branches, reducers, couplers and access fittings. You can also browse our wider
Underground Drainage range for additional pipe sizes, chambers, gullies and drainage accessories. The
160mm to 110mm level invert reducer provides a practical
160mm 110mm drainage reducer with an offset
underground drainage level invert reducer profile, reliable
160mm to 110mm pipe reducer connections and durable
PVC-U drainage reducer construction.
