PVC Straight Coupling — Solvent Weld Drain Pipe Connector, White (50mm–200mm)

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PVC Straight Coupling — Solvent Weld Drain Pipe Connector, White (50mm–200mm)

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Size: 50mm

Quantity(Pcs): 1 Pcs

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$4.61 USD

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PVC Straight Coupling for Drain Pipe Repair — Fast, Leak-Free Solvent Weld Connection

A cracked drain line or a botched pipe cut can bring a plumbing project to a grinding halt. Whether you're a homeowner tackling a weekend repair or a contractor running new DWV lines, having the right PVC straight coupling on hand means the job gets done without callbacks or callbacks. This fitting is designed for anyone who needs a reliable, no-fuss connection in a drain, waste, or vent system.

Each piece is a single straight coupling (1 Pcs per order) made from rigid white PVC, engineered for solvent-weld (adhesive) installation. Available in five sizes — 50mm (≈2"), 75mm (≈3"), 110mm (≈4"), 160mm (≈6¼"), and 200mm (≈7⅞") — to cover basin waste lines through main sewer connections. The socket depth on each end is sized to provide adequate glue surface area for a secure, permanent bond.

Typical applications include repairing a broken underground drain pipe, joining two sections of PVC soil stack during new construction, and extending or rerouting drain lines in bathroom or kitchen renovations — all scenarios where a solvent-weld PVC drain pipe connector delivers a watertight result without mechanical fittings or clamps.

🔵 Compatibility: Designed for standard metric OD PVC DWV (drain, waste & vent) pipe — 50 mm, 75 mm, 110 mm, 160 mm, and 200 mm. Verify your pipe's outer diameter before ordering. Not intended for pressure water supply lines.

✅ Key Features of These PVC Straight Drain Pipe Couplings

🔗Solvent-Weld Socket Design — Each end features a machined socket sized for standard metric PVC pipe OD, giving solvent cement maximum contact area for a fused, leak-free PVC drain pipe connection.
📐Five Size Options in One Listing — From 50mm (≈2") basin waste to 200mm (≈7⅞") main sewer, you can select the exact diameter needed for your drain pipe repair or new installation without hunting across multiple listings.
🏗️Rigid PVC Construction — Made from rigid PVC formulated for DWV service, offering resistance to common household drain chemicals, root intrusion pressure, and the temperature range typical of residential waste water.
⚡Straight-Through Flow Path — The full-bore straight coupling maintains the pipe's internal diameter through the joint, avoiding flow restriction or turbulence that can cause debris buildup in drain lines.
🔧Tool-Free Installation — No threading, no crimping, no special equipment. Standard PVC primer and solvent cement are all that's needed, making this fitting accessible for DIY drain repairs and professional plumbing alike.
🌿White Finish for Clean Aesthetics — The white color blends with standard PVC pipe and is easy to identify in mixed-material installations, useful for inspections and future maintenance in exposed utility areas.

📐 Technical Specifications — PVC Straight Coupling Drain Fitting

Fitting Type	Straight Coupling (Full Socket, Both Ends)
Connection Method	Solvent Weld (Adhesive / Cement)
Material	Rigid PVC (Polyvinyl Chloride)
Color / Finish	White
Available Sizes (OD)	50mm (≈2") / 75mm (≈3") / 110mm (≈4") / 160mm (≈6¼") / 200mm (≈7⅞")
Application	DWV — Drain, Waste & Vent Systems
Suitable For	Residential & Light Commercial Drain Lines
Pressure Rating	See variant options / Contact us to confirm for your application
Temperature Range	See variant options / Contact us to confirm
Quantity per Order	1 Pcs
Pipe Standard Compatibility	Standard metric OD PVC DWV pipe — verify OD before ordering
UV Resistance	Moderate — suitable for concealed/underground use; protect if exposed to direct sunlight

⚠️ Note: This fitting is designed for drain, waste, and vent (DWV) applications only. It is not rated for pressurized water supply lines. Always confirm your pipe's outer diameter (OD) with calipers before purchasing — nominal pipe sizes can vary between standards.

❓ Frequently Asked Questions

How do I choose the right size PVC straight coupling?

Match the coupling size to your pipe's outer diameter (OD). Common drain pipe sizes are 50mm (≈2") for basin and bath waste, 75mm (≈3") for soil stacks in some regions, 110mm (≈4") for standard soil and drain lines, 160mm (≈6¼") for larger underground drains, and 200mm (≈7⅞") for main sewer connections. When in doubt, measure the pipe OD with calipers before ordering.

What type of adhesive or solvent cement should I use?

Use a PVC solvent cement (also called solvent weld adhesive) rated for drain, waste, and vent (DWV) applications. Apply primer first on both the pipe end and the coupling socket, then apply cement and push the pipe in with a quarter-turn. Follow the cement manufacturer's cure time before running water.

Can this coupling be used for outdoor or underground drain repairs?

PVC is generally suitable for underground and outdoor drain applications when properly solvent-welded and backfilled with care. For direct UV exposure above ground over long periods, consider wrapping or painting the fitting, as prolonged UV can cause surface degradation over time.

Is this fitting compatible with standard DWV pipe systems?

Yes. These straight couplings are designed for standard PVC DWV (drain, waste, vent) pipe systems. They are typically compatible with pipes conforming to common metric OD standards. If your existing system uses imperial-sized pipe, verify the OD measurement before purchasing, as nominal sizes can differ between standards.

How strong is a solvent-welded PVC coupling joint?

A properly cured solvent-weld joint is generally stronger than the pipe itself and is rated for the pressure and flow demands of residential and light commercial DWV systems. The joint becomes a single fused piece of PVC, eliminating the risk of pull-out under normal operating conditions.

Can I use this coupling to repair a cracked or broken drain pipe section?

Yes — this is one of the most common uses. Cut out the damaged section of pipe cleanly with a pipe cutter or hacksaw, deburr the cut ends, and use two couplings with a short replacement pipe section to bridge the gap. This method restores full flow capacity without the need for specialized tools.

Does the white color fade or discolor over time?

PVC fittings can experience minor surface yellowing with prolonged direct sunlight exposure. For concealed drain applications (inside walls, under slabs, or underground), color stability is generally not an issue. For exposed installations, a UV-protective paint can help maintain appearance.

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PVC Straight Coupling — Solvent Weld Drain Pipe Connector, White (50mm–200mm)

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Beschreibung

PVC Straight Coupling for Drain Pipe Repair — Fast, Leak-Free Solvent Weld Connection

✅ Key Features of These PVC Straight Drain Pipe Couplings

📐 Technical Specifications — PVC Straight Coupling Drain Fitting

❓ Frequently Asked Questions

PVC Straight Coupling — Solvent Weld Drain Pipe Connector, White (50mm–200mm)

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