PVC 90° Reducing Elbow — White Solvent-Weld Pipe Fittings for Reliable Direction Changes
When a plumbing or irrigation run needs to change direction and step down in pipe diameter at the same time, a standard elbow simply won't do. DIYers, contractors, and facilities maintenance teams working on drainage, water supply, or garden irrigation systems need a fitting that handles both tasks in a single component — without leaks or weak joints.
These white PVC 90° reducing elbows are manufactured from rigid PVC and use a solvent-cement (glue) connection method for a permanent, pressure-rated bond. Available in 22 size combinations ranging from 32×20 mm (approx. 1¼" × ¾") up to 110×90 mm (approx. 4" × 3½"), each fitting combines a 90-degree directional change with an inline diameter reduction. Wall thickness and pressure rating vary by size; see variant options for exact dimensions.
Typical applications include residential and commercial cold-water drainage lines, underground irrigation manifolds where branch lines step down from a main header, and above-ground grey-water waste runs. The white finish suits exposed pipework in utility rooms, garages, and garden installations where a clean appearance matters. Sold in packs of 1, 3, 5, or 10 pieces to match project scale — from a single repair to a full system build.
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Compatibility: Designed for standard metric PVC pressure and drainage pipe. Confirm your pipe's outer diameter matches the fitting's socket bore before ordering. Not rated for hot-water or compressed-air service.
✅ Key Features of These PVC 90° Reducing Elbow Pipe Fittings
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Dual-function design
Combines a 90° directional change with an inline diameter reduction in one fitting, eliminating the need for a separate reducer and elbow.
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Solvent-weld (glue) connection
Socket ends accept standard PVC solvent cement for a chemically fused, leak-free joint that meets typical cold-water plumbing requirements.
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Wide size range
22 size combinations from 32×20 mm to 110×90 mm (approx. 1¼"×¾" to 4"×3½") cover most residential and light-commercial pipe schedules.
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White finish
Uniform white colour suits exposed utility pipework, garden installations, and any application where a tidy appearance is required.
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Rigid PVC construction
Resistant to corrosion, scale build-up, and most household chemicals; suitable for cold-water drainage, irrigation, and grey-water waste lines.
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Flexible pack quantities
Order 1, 3, 5, or 10 pieces per size to match your exact project needs — no over-buying on small repairs, no under-ordering on full system builds.
📐 Technical Specifications — PVC Reducing Elbow Pipe Fittings
| Material |
Rigid PVC (Polyvinyl Chloride) |
| Colour / Finish |
White |
| Fitting Type |
90° Reducing Elbow |
| Connection Method |
Solvent cement (glue) socket |
| Size Range (Outlet × Inlet) |
32×20 mm to 110×90 mm (see variant options) |
| Approximate Imperial Equivalents |
¾" to 4" nominal pipe sizes |
| Wall Thickness |
See variant options |
| Pressure Rating |
See variant options (cold water only) |
| Temperature Rating |
Typically up to 60 °C (140 °F) — cold water service |
| Compatible Pipe Standard |
Metric PVC pressure / drainage pipe |
| Pack Quantities Available |
1, 3, 5, or 10 pieces |
| Application |
Drainage, irrigation, grey-water waste, cold-water supply |
❓ Frequently Asked Questions
How do I choose the correct size reducing elbow?
Measure the outer diameter (OD) of both pipes you need to connect. The larger OD corresponds to the inlet socket and the smaller OD to the outlet socket. For example, a 50×32 mm elbow accepts a 50 mm OD pipe on one end and a 32 mm OD pipe on the other. If you are unsure, check the pipe's printed markings or use a calliper — nominal pipe sizes can differ from actual ODs depending on the pipe standard.
Can these fittings be used for hot water or compressed air?
No. These rigid PVC reducing elbows are rated for cold-water service only (typically up to 60 °C / 140 °F). They are not suitable for hot-water supply lines, steam, or compressed-air systems. For those applications, CPVC, copper, or rated thermoplastic fittings should be used instead.
What solvent cement should I use to install these fittings?
Use a PVC-rated solvent cement (also called PVC glue or solvent weld adhesive) that is compatible with rigid PVC pipe. For best results, clean and dry both the pipe end and the fitting socket, apply a thin, even coat of cement to both surfaces, push the pipe firmly into the socket with a slight twist, and hold for 30 seconds. Allow the joint to cure fully before pressurising — typically 1–2 hours at room temperature, longer in cold conditions.
Are these fittings suitable for underground or buried installations?
Rigid PVC is generally suitable for buried drainage and irrigation applications when properly bedded and backfilled. Ensure the pipe and fittings are rated for the intended pressure and that the trench is free of sharp stones that could damage the pipe wall. For pressurised underground supply lines, confirm the pressure rating of the specific size variant you select.
How do I know if these fittings are compatible with my existing pipe?
These fittings are designed for standard metric PVC pipe. Check that your existing pipe's outer diameter matches the socket bore of the fitting size you are ordering. Metric PVC pipe ODs are standardised (e.g., 32 mm, 40 mm, 50 mm, 63 mm, 75 mm, 90 mm, 110 mm), so as long as your pipe follows the metric standard, the fitting should be compatible. If your pipe is imperial-sized (e.g., 1½" BSP), measure the actual OD before ordering.
Why buy a reducing elbow instead of a standard elbow plus a separate reducer?
A reducing elbow combines both functions in a single component, which means fewer joints in the system, less potential for leaks, reduced installation time, and a more compact fitting footprint — particularly useful in tight spaces such as wall cavities, under sinks, or in irrigation manifold boxes. It also typically costs less than purchasing two separate fittings.
How many pieces should I order for my project?
For a single repair or replacement, the 1-piece option is the most economical choice. If you are building a new irrigation system or drainage run with multiple direction changes, ordering 3, 5, or 10 pieces at once reduces the per-unit cost and ensures you have spares on hand for future maintenance. Review your pipe layout plan and count the number of 90° reducing direction changes required before selecting a quantity.
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