PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey
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PVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / GreyPVC Straight Pipe Coupling Socket — ID 16mm–200mm, White / Blue / Grey

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

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Beschreibung

PVC Straight Pipe Coupling Socket — Reliable Slip-Fit Joints for Water, Irrigation & Drainage Lines

When a pipe run needs to be extended, repaired, or connected end-to-end, a loose fit or mismatched coupling turns a simple job into a frustrating leak. Whether you're a plumber running new water supply lines, a homeowner fixing a broken irrigation section, or a contractor routing conduit, you need a coupling that seats cleanly, bonds securely, and holds pressure without surprises.

Each listing covers one PVC straight socket coupling (also called a slip coupling or socket union). Available in inner diameters from 16mm (≈5/8") to 200mm (≈7-7/8"), in White, Blue, and Grey finishes. Sold in quantities of 1, 5, or 10 pieces per order. The socket depth on each end is sized to accept standard metric OD PVC pipe per DIN/ISO dimensions. Material is rigid PVC (uPVC), solvent-weld slip-fit connection on both ends.

Typical use cases include cold-water supply line repairs and extensions, residential and commercial irrigation system assembly, drainage and waste pipe runs, and low-pressure industrial fluid transfer lines. The slip-fit socket design makes these PVC pipe coupling fittings straightforward to install with standard PVC cement — no threading tools or special equipment required.

🔵 Compatibility: Designed for standard metric OD PVC pipe (DIN/ISO). Fits pipe where the pipe's outer diameter matches the coupling's listed ID. Always verify your pipe's OD before ordering. Not compatible with imperial (IPS/SCH40) pipe without an adapter.

✅ Key Features of These PVC Straight Socket Pipe Couplings

  • 📐Wide Size Range — Available from 16mm (≈5/8") to 200mm (≈7-7/8") ID, covering the most common residential and commercial PVC pipe coupling sizes in a single product line.
  • 🔗Slip-Fit Solvent-Weld Socket — Both ends accept standard metric OD PVC pipe for a solvent-cement bond, creating a permanent, leak-resistant joint without threading or mechanical fasteners.
  • 🎨Three Color Options — White for potable water and visible plumbing, Blue for cold-water line identification, and Grey for drainage, conduit, and industrial runs — making it easy to follow your system's color coding.
  • 💧Moisture and Chemical Resistance — Rigid uPVC construction resists corrosion, scale buildup, and most common household and agricultural chemicals, making it a dependable choice for irrigation pipe fittings and water supply applications.
  • 📦Flexible Quantity Options — Order 1, 5, or 10 pieces to match your project scope, whether it's a single repair or a full irrigation system installation with multiple straight pipe socket joints.
  • ⚙️Straight-Through Flow Path — The full-bore interior design minimizes flow restriction, maintaining consistent water pressure through the coupling — important for irrigation systems and pressurized supply lines.

📐 Technical Specifications — PVC Straight Socket Pipe Coupling

Product Type PVC Straight Socket Coupling (Slip Coupling)
Connection Type Slip-fit solvent-weld, both ends
Material Rigid PVC (uPVC)
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 (≈7-7/8")
Available Colors White, Blue, Grey
Available Quantities 1 Pcs, 5 Pcs, 10 Pcs
Pipe Standard Compatibility Metric OD PVC pipe (DIN/ISO dimensions)
Pressure Rating See variant options — typically rated for cold-water pressure service; confirm for your specific size and application
Temperature Range Generally suitable for cold water (up to approximately 60°C / 140°F); not recommended for hot water lines
Installation Method PVC solvent cement (primer + cement); no threading required
Typical Applications Water supply, irrigation, drainage, conduit, low-pressure industrial fluid lines
Country of Origin Contact us to confirm
⚠️ Sizing Note: The listed size refers to the coupling's inner diameter (ID), which should match your pipe's outer diameter (OD). If you are unsure, measure your pipe's OD with calipers before ordering. Pipe labeled "20mm" typically has a 20mm OD in metric systems.

❓ Frequently Asked Questions

How do I choose the right pipe coupling size?

Match the coupling's ID (inner diameter) to the outer diameter of your pipe. For example, a 20mm coupling typically fits a 20mm OD PVC pipe. Always measure your pipe's outer diameter with calipers before ordering. Common conversions: 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".

What pressure rating do these PVC couplings typically handle?

PVC straight socket couplings of this type are generally rated for cold-water pressure service. Smaller sizes (16–50mm) typically handle up to 10–16 bar (145–232 psi) under cold water conditions. Larger sizes (63mm and above) are generally rated lower. Confirm the specific pressure rating for your application before installation.

Can these couplings be used outdoors or underground?

PVC is inherently resistant to moisture and most common chemicals, making it suitable for outdoor and underground use in most cases. However, prolonged UV exposure can cause surface degradation over time. For exposed outdoor installations, painting or wrapping the pipe is generally recommended. Underground burial is typically fine without additional protection.

What connection standard do these couplings use — are they threaded?

These are slip-fit (solvent-weld) socket couplings — they do not use threads. The pipe end is inserted into the socket and bonded with PVC solvent cement. This creates a permanent, leak-free joint. They are compatible with standard metric OD PVC pipe (DIN/ISO dimensions). If you need a threaded connection, you would need a threaded adapter fitting instead.

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

All three colors are the same rigid PVC material and generally offer equivalent performance. White is the most common choice for potable water and visible plumbing. Blue is often used to identify cold-water lines in multi-line systems. Grey is typically used for drainage, conduit, and industrial applications. Choose the color that matches your existing pipe system or local convention.

How do I install a PVC straight socket coupling?

Cut the pipe square, deburr the end, and dry-fit to confirm sizing. Apply PVC primer to both the pipe end and the socket interior, then apply PVC solvent cement to both surfaces. Insert the pipe with a slight twist and hold for 30 seconds. Allow the joint to cure fully before pressurizing — typically 15–30 minutes for handling, and 24 hours for full pressure service in most conditions.

Are these couplings suitable for hot water lines?

Standard PVC is generally not recommended for hot water applications above 60°C (140°F). For hot water lines, CPVC or other heat-rated materials are typically required. These couplings are best suited for cold water supply, irrigation, drainage, and low-temperature industrial piping.

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

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