Product Overview
160mm x 110mm level invert reducer with a single socket connection, designed for underground foul and surface water drainage systems.
This fitting reduces pipe size from 160mm to 110mm while maintaining a consistent invert level, ensuring that pipe gradients and flow efficiency are not compromised.
Manufactured from durable uPVC to BS EN 1401-1 standards, the reducer provides a watertight push-fit joint for plain-ended pipework.
The single socket design allows direct connection into a larger 160mm drainage run without requiring additional couplers.
Level invert reducers are particularly useful in systems where a smaller branch line must connect seamlessly into a high-capacity main drain, ensuring smooth transitions and reliable hydraulic performance.
Features & Benefits
- uPVC construction: Strong, durable, and resistant to ground chemicals, rot, and corrosion.
- Level invert design: Maintains correct pipe fall and flow performance when reducing size.
- Size compatibility: Connects 160mm drainage runs to 110mm pipework.
- Single socket fitting: Accepts a plain-ended 110mm pipe directly into the reducer.
- Watertight seal: Integrated push-fit gasket ensures leak-free joints.
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Lightweight handling: Easy to transport, position, and install on site.
Applications
- Size reduction: Transitions from a 160mm main drain to a 110mm branch while maintaining invert levels.
- Foul drainage: Connects smaller sewer lines into larger mains without affecting flow.
- Surface water systems: Links rainwater or stormwater pipes of different diameters.
- System integration: Enables mixed-diameter layouts in residential or commercial drainage networks.
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Hydraulic efficiency: Prevents step changes in invert levels, reducing the risk of silt build-up.
Installation Guidance
- Preparation: Cut and chamfer pipe ends, ensuring smooth surfaces before jointing.
- Connection: Insert the 110mm plain-ended pipe fully into the socket seal.
- Alignment: Ensure correct gradient is maintained throughout the drainage run.
- Bedding: Place the reducer on compacted granular material for full support.
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Backfilling: Surround with granular fill before final backfill to protect the joint.
Compliance & Performance
- Standard: Manufactured to BS EN 1401-1.
- Size: 160mm x 110mm reducer.
- Type: Level invert, single socket.
- Material: Unplasticised PVC (uPVC).
- Applications: Suitable for underground foul and surface water drainage systems
- Performance: Maintains invert level while reducing diameter for smooth flow.
- Durability: Resistant to corrosion, chemicals, and long-term ground exposure.