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When your plumbing, irrigation, or drainage project calls for stepping down from one pipe diameter to another, a loose or mismatched fitting can mean leaks, pressure loss, and costly rework. These PVC solvent weld reducer socket fittings are designed for DIY builders, plumbers, and irrigation installers who need a reliable, watertight reduction joint the first time — without special tools or professional help.
Each fitting is manufactured from rigid PVC (polyvinyl chloride) with smooth internal bores and precisely machined socket ends for solvent cement bonding. The size range spans from 25×20 mm (approximately 1" × ¾") up to 200×160 mm (approximately 8" × 6¼"), covering the most common metric pipe step-down combinations used in residential and light commercial applications. Available in white, blue, and grey to match your existing pipework or colour-coding requirements.
Typical use cases include garden drip irrigation line reductions, rainwater downpipe transitions, domestic cold-water supply step-downs, and pool or spa plumbing manifold connections — all scenarios where a long-tail search for "PVC solvent weld reducer coupling" or "metric pipe reduction socket" leads experienced DIYers to exactly this type of fitting.
From 25×20 mm up to 200×160 mm — 33 size combinations covering the most common metric pipe step-downs in a single product listing.
White, blue, and grey finishes available to match existing pipework or meet colour-coded system requirements.
Smooth, precisely machined socket ends accept standard PVC solvent cement for a permanent, watertight bond without threading or compression rings.
Made from rigid PVC — corrosion-resistant, non-reactive with most water types, and suitable for cold-water pressure and gravity drainage applications.
Order 1, 2, or 5 pieces per variant to match your project scope — no need to buy a full box when you only need a few fittings.
No threading dies or compression tools required. Apply PVC primer and solvent cement, push and twist — the joint cures in minutes for a leak-free connection.
| Material | Rigid PVC (Polyvinyl Chloride) |
|---|---|
| Connection Type | Solvent weld (socket × socket) |
| Size Range (Larger × Smaller) | 25×20 mm to 200×160 mm |
| Approximate Inch Equivalents | ~¾"×½" to ~8"×6¼" |
| Available Colours | White, Blue, Grey |
| Pack Quantities | 1 piece, 2 pieces, 5 pieces |
| Pressure Rating | See variant options |
| Temperature Range | See variant options |
| Wall Thickness | See variant options |
| Application | Cold-water supply, irrigation, drainage, pool/spa plumbing |
| Solvent Cement Required | Yes (not included) |
Measure the outer diameter (OD) of both pipes you need to join. The larger socket dimension should match the OD of your larger pipe, and the smaller socket dimension should match the OD of your smaller pipe. For example, a 50×32 mm reducer fits a 50 mm OD pipe on one end and a 32 mm OD pipe on the other. If you are unsure, contact us to confirm before ordering.
These rigid PVC solvent weld fittings are commonly used in cold-water pressure applications such as garden irrigation and domestic supply lines. The exact pressure rating depends on the specific size and wall schedule. For critical pressurised systems, verify the pressure rating against your system's working pressure before installation.
Rigid PVC is inherently corrosion-resistant and does not rust, scale, or react with most water types including chlorinated tap water and mild chemical solutions. It is not recommended for hot water (above approximately 60 °C) or for use with solvents and concentrated acids without verifying chemical compatibility first.
The colour choice is primarily aesthetic or system-specific. White is the most common for general plumbing and irrigation. Blue is often used in potable water systems in some regions. Grey is typical for drainage and waste applications. Choose the colour that matches your existing pipework or your local colour-coding convention.
No special tools are required. You will need PVC pipe cutters or a hacksaw to cut the pipe square, PVC primer (recommended), and PVC solvent cement. Apply primer to both the pipe end and socket, apply solvent cement, push the pipe firmly into the socket with a slight twist, and hold for 30 seconds. Allow the joint to cure before pressurising the system.
Yes. PVC solvent weld reducer sockets are widely used in gravity drainage, rainwater downpipe transitions, and waste water systems. Ensure the size you select matches the pipe OD used in your drainage system. For underground or buried applications, check that the fitting is rated for the burial depth and soil load in your project.
Each variant is available in packs of 1, 2, or 5 pieces. For a single connection point, order 1 piece. For small repairs or projects with a few reduction points, 2 pieces is a practical choice. For larger irrigation manifolds or multi-branch plumbing runs, the 5-piece pack offers better value per fitting. Select your quantity above before adding to cart.
