Description
What is a 90-degree 110mm Drainage Bend used for?
A 110mm Drainage Bend with a 90-degree angle (often called a “quarter bend” or “90 elbow”) is used to facilitate a sharp change in direction. In domestic UK plumbing, this is typically used at the base of a soil vent pipe (SVP) where it transitions from a vertical stack to a horizontal underground drain. It is also the standard fitting for connecting back-to-wall toilets or outdoor gully traps to the main drainage network.
The Advantage of a Double Socket PVC-U Connection
At ECO HEAT SHOP LTD, we supply the double-socketed version of this 90-degree bend because it offers the most versatile installation. Because both ends are “female” (sockets), you can join two cut sections of 110mm pipe without needing extra couplings. Made from high-impact PVC-U, this fitting is designed to handle the weight of backfilled soil and the thermal expansion of hot waste water without cracking or warping.
Professional Tips for Installing 90-Degree Bends
When installing a 90-degree 110mm bend in a horizontal run, it is always recommended to check local building regulations. For foul water systems, two 45-degree bends are sometimes preferred over a single 90-degree bend to create a “long radius” turn and further reduce the risk of blockages. However, for vertical-to-horizontal transitions, this 90-degree push-fit elbow is the standard. Always use silicone lubricant on the rubber seals to ensure a smooth, seated fit that won’t leak under pressure.
Technical Specifications:
-
Pipe Diameter: 110mm (Standard UK 4 Inch).
-
Angle of Bend: 90 Degrees.
-
Connection Type: Double Socket (Push-fit with Captive Rubber Seals).
-
Material: Heavy-Duty PVC-U (Golden Brown/Terracotta).
-
Compliance: Meets BS EN 1401-1 standards for underground drainage.
-
Application: Suitable for foul water, surface water, and soil vent systems.
Reviews
There are no reviews yet.