Description
The Wavin Osma 160mm 87.5 Degree Equal Junction (Single Socket) is a durable underground drainage fitting designed to create branch connections between three 160mm pipes. The 87.5-degree angle provides a near-right-angle T-junction, ideal for joining lateral pipe runs into main drainage lines without compromising flow.
This version features a single push-fit socket and two plain-ended outlets, allowing flexible connection options using couplers or other fittings from the Wavin OsmaDrain range. The socket includes Wavin’s RootSeal technology, a co-injected ring seal that incorporates a built-in inhibitor to help prevent tree root ingress at the joint — ensuring long-term performance and protection in underground systems.
Manufactured from high-quality PVC-U, the fitting is corrosion-resistant, lightweight, and easy to handle. The plain-ended legs allow versatility in layout design and alignment, while the push-fit socket provides a secure, watertight seal without the use of solvent weld or adhesives.
The Wavin Osma 160mm 87.5 Degree Equal Junction is part of the fully compatible OsmaDrain system and meets the standards of BS EN 1401-1. It is suitable for foul or surface water drainage systems across residential, commercial, and infrastructure projects.
Key Features
• Equal Junction Design: Connects three 160mm pipes at 87.5 Degree angles
• Material: Tough, underground-grade PVC-U
• Single Socket Design: Push-fit seal on one outlet; plain spigot ends on other two
• RootSeal Technology: Captive ring seal includes inhibitor to prevent root ingress
• Flexible Connection: Plain ends allow integration with couplers or other fittings
• System Compatibility: Part of the full 160mm Wavin OsmaDrain range
Specifications
• Size: 160mm diameter, 87.5 Degree junction
• Material: PVC-U
• Connection Type / Load Rating: Push-fit with RootSeal (1 socket), 2 plain ends
• Standard: BS EN 1401-1
Applications
• Creating 160mm underground pipe branches
• Connecting lateral pipes to main runs
• Suitable for foul or surface water gravity systems
• Ideal for new builds, upgrades or drainage reroutes
Why Choose Stanley John LTD
Based in Newbury, Berkshire, Stanley John LTD delivers reliable drainage supplies across Berkshire, Hampshire, Wiltshire, Oxfordshire, Surrey, Greater London and more. We stock the full Wavin OsmaDrain range and provide fast, knowledgeable service.
View our full selection in the Wavin Osma range.
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Order the Wavin Osma 160mm 87.5 Degree Equal Junction (Single Socket) for reliable underground branch connections.
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