Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines
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Transparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water LinesTransparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines

Transparent PVC Straight Pipe Coupling — Socket Fitting for Water Lines

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Beschreibung

Transparent PVC Straight Coupling — Reliable Slip-Socket Joints for Water Pipe Systems

Leaking or misaligned pipe joints are one of the most frustrating problems in any plumbing, irrigation, or water-supply project. Whether you're extending a garden irrigation line, repairing a burst section of schedule pipe, or building a custom aquarium filtration loop, you need a coupling that seats fully, cements cleanly, and holds pressure without guesswork. These transparent PVC straight socket couplings give DIYers, plumbers, and hobbyists a clear view of every joint — literally.

Each coupling is a single-piece slip-socket (plain-end) fitting machined from rigid, transparent PVC. Available in nine sizes — 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"), and 110mm (≈4-3/8") — and sold in quantities of 1, 5, or 10 pieces to match your project scale. Wall thickness and socket depth follow standard Schedule 40 dimensional conventions; confirm your pipe OD before ordering.

Typical use cases include residential and commercial water supply line repairs, drip and sprinkler irrigation manifold extensions, aquarium and hydroponics recirculation plumbing, and laboratory or industrial fluid-handling setups where visual flow inspection through a transparent PVC straight pipe coupling is a practical advantage.

🔵 Compatibility: Designed for standard Schedule 40 PVC pipe. Joined with PVC solvent cement (not included). Sizes listed are nominal pipe OD — measure your existing pipe before selecting a size.

✅ Key Features of These Transparent PVC Straight Socket Couplings

  • 🔍 Clear-Body Visual Inspection — The transparent PVC construction lets you confirm full pipe insertion depth and even solvent cement coverage before the joint cures — a practical advantage for irrigation manifolds and aquarium plumbing builds.
  • 💧 Slip-Socket Design for Leak-Free Joints — The smooth, precision-machined socket bore creates consistent contact with pipe OD, giving solvent cement an even bonding surface for a watertight straight pipe coupling joint.
  • 📐 Nine Sizes from 20mm to 110mm — Covers the most common residential and light-commercial pipe diameters, from 20mm (≈3/4") small-bore irrigation lines up to 110mm (≈4-3/8") main drain or supply runs.
  • ⚖️ Lightweight Yet Dimensionally Stable — Rigid PVC maintains its socket geometry under typical working pressures and temperatures, resisting deformation that could compromise the cement bond in water supply line repair applications.
  • 🧪 Chemical Resistance for Diverse Fluids — PVC is broadly resistant to chlorinated water, mild acids, and common fertilizer solutions, making these couplings suitable for hydroponics recirculation systems and treated municipal water lines.
  • 📦 Flexible Quantity Options — 1, 5, or 10 Pieces — Order a single coupling for a quick repair or a multi-pack for a full irrigation manifold build, with per-unit cost decreasing at higher quantities.

📐 Technical Specifications — PVC Straight Socket Coupling

⚠️ Sizes listed are nominal pipe outer diameters. Always verify your pipe OD with calipers before ordering. Wall thickness and socket depth vary by size — contact us to confirm for critical applications.
Product Type Straight Socket Coupling (Slip × Slip)
Material Rigid Transparent PVC (Polyvinyl Chloride)
Color / Finish Clear / Transparent
Available Sizes (OD) 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")
Connection Type Slip Socket — solvent cement (PVC cement) required
Compatible Pipe Standard Schedule 40 PVC (confirm OD match before ordering)
Working Pressure See variant options — typically up to 150 PSI at 73°F (23°C); decreases at higher temps
Temperature Range Generally 33°F–140°F (1°C–60°C) for continuous service
Wall Thickness See variant options / Contact us to confirm
Quantity per Order 1 Pcs / 5 Pcs / 10 Pcs (select above)
Certifications Contact us to confirm NSF/ANSI 61 status for potable water use
Country of Origin See variant options

❓ Frequently Asked Questions

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

Match the coupling size to your pipe's outer diameter (OD). For example, a 20mm coupling fits pipe with a 20mm OD — approximately 3/4" nominal. A 25mm coupling fits approximately 1" nominal pipe. Always measure your existing pipe OD with calipers rather than relying on the pipe label, as nominal sizes can vary by schedule and manufacturer. When in doubt, size up and test-fit before cementing.

What is the pressure rating of these PVC couplings?

Schedule-grade PVC straight couplings are generally rated for working pressures up to 150–200 PSI at room temperature (73°F / 23°C). Pressure capacity decreases significantly at higher temperatures — typically by 50% or more at 140°F (60°C). Contact us to confirm the pressure rating for your specific size and application before installation in high-pressure systems.

Can these couplings be used outdoors or in direct sunlight?

PVC can become brittle with prolonged UV exposure. For outdoor installations in direct sunlight, it is generally recommended to coat the fitting with UV-resistant paint or wrap it with UV-protective tape. These couplings are well-suited for underground irrigation runs, shaded outdoor plumbing, and indoor applications. For fully exposed outdoor use, consider a UV-stabilized PVC or CPVC alternative.

Are these fittings compatible with standard PVC pipe and solvent cement?

Yes. These are slip-socket (plain-end) couplings designed for use with standard PVC solvent cement. Apply primer and cement to both the pipe end and the socket interior, insert the pipe with a slight twist, and hold for 30 seconds. CPVC cement is not recommended. These couplings are compatible with Schedule 40 PVC pipe of the corresponding nominal size.

Can I use these for drinking water or potable water systems?

PVC fittings are commonly used in potable water systems when they carry NSF/ANSI 61 certification. Please contact us to confirm the certification status of the specific size you need before use in drinking water applications. For non-potable irrigation, aquarium, or industrial fluid systems, these couplings are generally suitable without additional certification requirements.

What is the difference between a straight coupling and a union fitting?

A straight coupling (socket coupling) permanently joins two pipe ends using solvent cement — it cannot be disassembled without cutting the pipe. A union fitting allows the joint to be disconnected and reconnected without cutting. Use a straight socket coupling for permanent water supply line runs and a union where future serviceability or equipment removal is needed.

Why choose a transparent PVC coupling over a standard white or gray one?

The clear body lets you visually inspect the joint after cementing to confirm full pipe insertion and even cement distribution — useful for quality control in irrigation manifolds, aquarium plumbing, and lab setups. It also makes it easier to spot air pockets or incomplete bonds before the system is pressurized. Functionally, transparent PVC performs similarly to standard white PVC in most water-handling applications.

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

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