Description
What is a 110mm 15 Degree Drainage Bend used for?
A 110mm Drainage Bend with a 15-degree offset is a specialized fitting used to create slight directional changes in a pipeline. In the UK, 110mm (4 inch) is the standard diameter for domestic underground drainage and soil vent pipes. While 45 and 90-degree bends are common for sharp turns, the 15-degree “shallow” bend is critical for correcting minor misalignments or navigating around structural obstacles without causing the flow turbulence that leads to blockages.
Why Choose a Double Socket PVC-U Fitting?
At ECO HEAT SHOP LTD, we supply double-socketed bends because they offer maximum flexibility. The “double socket” design means both ends of the fitting are “female,” accepting the “male” (plain) ends of standard 110mm pipes. This eliminates the need for additional couplers. Our bends are made from PVC-U (Unplasticized Polyvinyl Chloride), which is specifically chosen for its high ring stiffness and resistance to the corrosive nature of domestic effluent.
Best Practices for Underground Installation
When installing this 110mm drainage bend, it is vital to ensure the pipe ends are chamfered and lubricated with a silicone-based lubricant. This allows the pipe to slide past the captive rubber seal without displacing it, ensuring a 100% watertight joint. Because it is a shallow 15-degree angle, it is often used in series to create a “long radius” turn, which is the gold standard for preventing “solids” from settling in the pipework.
Technical Specifications:
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Diameter: 110mm (Standard UK 4 Inch).
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Angle: 15 Degrees.
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Socket Type: Double Socket (Push-fit with captive rubber seals).
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Material: Heavy-Duty PVC-U (Terracotta/Golden Brown for underground use).
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Standards: Manufactured to BS EN 1401-1 or equivalent UK building regulations.
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Applications: Foul water drainage, surface water systems, and soil stacks.
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