PVC Straight Pipe Coupling Socket — 16mm to 200mm, White / Blue / Grey

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PVC Straight Pipe Coupling Socket — 16mm to 200mm, White / Blue / Grey

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ID- Colour: 16mm - White

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PVC Straight Pipe Coupling Socket — Reliable Leak-Free Pipe Joining from 16mm to 200mm

When a pipe run needs to be extended, repaired, or connected end-to-end, a poorly fitted joint is the first place leaks appear. Plumbers, irrigation installers, DIY homeowners, and contractors all need a PVC straight pipe coupling socket they can trust to hold tight the first time — without callbacks or re-work.

Each listing is for one (1) PVC straight socket coupling, available in inner diameter sizes from 16mm (≈5/8") up to 200mm (≈7.9"). The fitting is manufactured from rigid PVC (polyvinyl chloride) and is offered in three color options — White, Blue, and Grey — to match your system's color-coding convention. The socket depth on each end is sized to provide adequate glue surface area for a secure solvent-weld joint.

These couplings are well suited for residential and commercial cold-water plumbing lines, garden and agricultural drip irrigation pipe repair, and PVC conduit runs where a straight inline connection is needed. The 63mm (2-1/2") and larger sizes are commonly used in pool and spa plumbing as well as stormwater drainage systems.

🔵 Compatibility: Designed for standard metric PVC pipe (DIN/ISO dimensions). Sizes 16mm–200mm ID. Solvent-weld (slip) socket connection — requires PVC primer and cement. Not for threaded connections.

⚠️ Size Note: The size listed refers to the pipe inner diameter (ID) the coupling accepts. Always measure your pipe's outer diameter (OD) and cross-reference with standard PVC pipe charts before ordering. When in doubt, contact us to confirm.

✅ Key Features of These PVC Straight Pipe Coupling Sockets

🔗Full-Bore Straight-Through Design — The socket coupling maintains the full pipe bore with no internal restriction, preserving flow rate in water supply and irrigation pipe repair applications.
🧪Rigid PVC Construction — Made from uPVC (unplasticized PVC), which resists corrosion, scale buildup, and most household chemicals — a key advantage over metal fittings in wet or buried environments.
📐Wide Size Range: 16mm to 200mm — A single product line covers everything from small-bore 16mm (≈5/8") domestic lines up to large 200mm (≈7.9") drainage or industrial pipe coupling needs.
🎨Three Color Options — White, Blue, and Grey variants allow you to follow standard color-coding conventions: Blue for potable water, Grey for drainage or conduit, White for general plumbing — all identical in material and dimensions.
🔧Solvent-Weld Socket Connection — The slip-socket design bonds permanently with standard PVC primer and cement, creating a joint that is typically stronger than the pipe itself once fully cured.
🌿Suitable for Buried and Outdoor Use — PVC is inherently resistant to soil moisture and mild ground chemicals, making these straight socket couplings a practical choice for underground drainage and outdoor irrigation systems.

📐 Technical Specifications — PVC Straight Socket Coupling

Product Type	PVC Straight Socket Coupling (Slip × Slip)
Material	Rigid uPVC (Unplasticized Polyvinyl Chloride)
Connection Type	Solvent-weld (slip socket) both ends
Available ID Sizes	16mm (≈5/8"), 20mm (≈3/4"), 25mm (≈1"), 32mm (≈1-1/4"), 40mm (≈1-1/2"), 50mm (≈2"), 63mm (≈2-1/2"), 75mm (≈3"), 90mm (≈3-1/2"), 110mm (≈4-3/8"), 125mm (≈5"), 140mm (≈5-1/2"), 160mm (≈6-1/4"), 200mm (≈7.9")
Color Options	White / Blue / Grey
Pipe Standard Compatibility	Metric PVC pipe (DIN/ISO); generally compatible with Schedule 40-equivalent metric pipe
Working Pressure	See variant options (varies by size and pipe schedule; contact us to confirm)
Temperature Range	Typically suitable for cold water up to 60°C (140°F); not recommended for hot water lines
Quantity per Order	1 piece
Installation Method	PVC primer + solvent cement (not included)

❓ Frequently Asked Questions

How do I choose the right size PVC coupling for my pipe?

Match the coupling's ID (inner diameter) to the outer diameter of your pipe. For example, a 25mm coupling (≈1" ID) is typically used with standard 25mm OD PVC pipe. Always measure your existing pipe OD before ordering. Sizes in this listing range from 16mm (≈5/8") up to 200mm (≈7.9"). When in doubt, bring a pipe sample to compare or contact us for guidance.

How strong is a PVC straight socket coupling under pressure?

PVC socket couplings are generally rated for working pressures up to 10–16 bar depending on pipe schedule and diameter. Larger diameters typically carry lower pressure ratings. For high-pressure water supply or industrial applications, please contact us to confirm the pressure class before ordering.

Can these PVC couplings be used outdoors or underground?

PVC is generally resistant to moisture, mild chemicals, and soil corrosion, making it suitable for underground drainage and outdoor irrigation use. For prolonged UV exposure above ground, consider painting or wrapping the fitting, as unprotected PVC can become brittle over time with direct sunlight exposure.

What pipe standards are these couplings compatible with?

These straight socket couplings are designed to fit standard metric PVC pipe following DIN/ISO dimensions. They are generally compatible with Schedule 40-equivalent metric PVC pipe. If you are working with imperial (IPS) schedule pipe common in North American plumbing, please contact us to confirm compatibility before purchasing.

Do I need solvent cement to install these couplings?

Yes. These are solvent-weld (slip) socket couplings. Apply PVC primer to both the pipe end and the socket interior, then apply solvent cement, insert the pipe with a slight twist, and hold firmly for 30 seconds. Allow the joint to cure fully before pressurizing — typically 1–2 hours at room temperature for low-pressure lines, longer for high-pressure systems.

Which color should I choose — White, Blue, or Grey?

All three colors share the same PVC material and dimensional specifications. White is the most common choice for general plumbing and visible installations. Blue is often used in water supply or irrigation systems for easy identification. Grey is typically used in electrical conduit or drainage applications. Choose based on your system's color-coding convention or local code requirements.

Can I use these couplings for drinking water or food-grade applications?

Standard PVC fittings are generally suitable for cold potable water lines in many residential applications. However, food-grade or NSF-61 certification requirements vary by jurisdiction and project type. If your project requires certified food-safe fittings, please contact us to confirm compliance before ordering.

🛒 Select your size and color above, then add to cart — ships from our US warehouse.

PVC Straight Pipe Coupling Socket — 16mm to 200mm, White / Blue / Grey

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PVC Straight Pipe Coupling Socket — Reliable Leak-Free Pipe Joining from 16mm to 200mm

✅ Key Features of These PVC Straight Pipe Coupling Sockets

📐 Technical Specifications — PVC Straight Socket Coupling

❓ Frequently Asked Questions

PVC Straight Pipe Coupling Socket — 16mm to 200mm, White / Blue / Grey

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