End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm
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End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mmEnd Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm

End Feed Copper Pipe Coupling Fittings – WRAS Approved, 6mm to 133mm

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In stock (500 units), ready to be shipped

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Description

End Feed Copper Pipe Coupling Fittings — Reliable Soldered Joints for Plumbing Systems

Whether you're a plumber tackling a central heating retrofit or a confident DIYer extending a domestic water supply, finding end feed copper couplings that fit precisely and solder cleanly is non-negotiable. A poor-fitting coupling means callbacks, leaks, and wasted time — exactly what these WRAS-approved end feed copper pipe coupling fittings are designed to prevent.

Each fitting is a straight end feed coupling machined from copper, designed to join two lengths of copper tube with a soldered joint. Available in 58 size combinations spanning inner diameters from 6.35mm (≈1/4") to 133mm (≈5.24"), with wall thicknesses from 0.8mm to 3mm. Both metric and imperial-equivalent sizes are stocked. Order as a single piece or in a 10-pack for project or trade quantities.

Typical applications include domestic hot and cold water supply lines, central heating pipework, underfloor heating manifold connections, and light commercial plumbing installations where a soldered copper joint is specified. The WRAS approval makes these fittings suitable for potable water systems, and the broad size range covers everything from small-bore refrigeration-style tubing up to large-diameter main supply runs.

ℹ️ Compatibility: Fits standard copper tube (metric and imperial OD). Inner diameter of fitting = outer diameter of pipe. Sizes include metric (6mm–133mm) and imperial-equivalent (6.35mm, 9.52mm, 12.7mm, 19.05mm, 25.4mm, 28.6mm). WRAS approved for potable water use.
⚠️ Size confirmation: Always measure your pipe's outer diameter with calipers before ordering. Nominal pipe sizes can vary between metric and imperial standards. If unsure, contact us to confirm the correct variant.

✅ Key Features of These End Feed Copper Coupling Fittings

  • 🔵WRAS Approved for Potable Water — Certified under the Water Regulations Advisory Scheme, confirming suitability for drinking water supply lines and compliance with UK water quality standards.
  • 📐58 Size Variants in One Listing — Inner diameters from 6.35mm (≈1/4") to 133mm (≈5.24"), covering both metric and imperial-equivalent copper tube sizes for domestic and light commercial end feed copper pipe fittings applications.
  • 🔩Straight Coupling Design — Joins two equal-diameter copper tube ends in a straight run, with a machined socket depth that ensures consistent solder capillary action and a leak-free joint when correctly fluxed and soldered.
  • 🏗️Multiple Wall Thickness Options — Choose from 0.8mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.8mm, 2mm, 2.8mm, or 3mm wall thickness to match your system's pressure requirements and copper tube specification.
  • 📦Single or 10-Pack Quantities — Available as individual pieces for repairs or in 10-packs for new installations and trade use, with per-unit savings on the larger pack — ideal for plumbers stocking up on copper soldered pipe fittings.
  • 🌡️Suitable for Hot and Cold Water Systems — Copper's thermal conductivity and durability make these couplings appropriate for both cold water supply and hot water/central heating circuits, typically rated for standard domestic operating temperatures.

📐 Technical Specifications — End Feed Copper Coupling Fittings

Product Type End Feed Straight Coupling
Material Copper
Joint Type End feed (solder ring / capillary — solder not included)
Approval / Certification WRAS (Water Regulations Advisory Scheme)
Inner Diameter Range 6.35mm (≈1/4") to 133mm (≈5.24")
Wall Thickness Options 0.8mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.8mm, 2mm, 2.8mm, 3mm
Metric Sizes Available 6mm, 8mm, 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 19mm, 20mm, 22mm, 25mm, 28mm, 32mm, 35mm, 38mm, 42mm, 45mm, 48mm, 50mm, 54mm, 65mm, 67mm, 76mm, 80mm, 89mm, 92mm, 105mm, 108mm, 133mm
Imperial-Equivalent Sizes 6.35mm (1/4"), 9.52mm (3/8"), 12.7mm (1/2"), 19.05mm (3/4"), 22.2mm (7/8"), 25.4mm (1"), 28.6mm (1-1/8")
Pack Options 1 Pcs / 10 Pcs
Finish Natural copper
Solder Included No — use lead-free solder suitable for potable water
Suitable Applications Hot & cold water supply, central heating, underfloor heating, light commercial plumbing
Country of Origin See variant options

❓ Frequently Asked Questions

How do I choose the right size end feed coupling for my copper pipe?

Match the coupling's inner diameter (ID) to the outer diameter (OD) of your copper tube. For example, a 15mm coupling fits 15mm OD copper pipe. For imperial pipe: 1/4" OD ≈ 6.35mm, 3/8" OD ≈ 9.52mm, 1/2" OD ≈ 12.7mm, 3/4" OD ≈ 19.05mm, 1" OD ≈ 25.4mm. Always confirm with calipers — nominal sizes can differ between metric and imperial standards.

What wall thickness should I select for my application?

For standard domestic hot and cold water or central heating systems, 0.8mm–1mm wall thickness is generally adequate. For higher-pressure systems or larger-diameter runs, 1.5mm–2mm or thicker is typically recommended. For the largest sizes (105mm–133mm), 2.8mm–3mm wall thickness is available. Always verify against your system's pressure rating requirements.

What is the pressure rating of these copper end feed couplings?

When correctly soldered, end feed copper fittings generally achieve pressure ratings suitable for standard domestic plumbing — typically in the range of 10–16 bar depending on size and wall thickness. For confirmed pressure ratings on a specific size variant, please contact us to confirm before ordering for high-pressure applications.

Are these fittings suitable for outdoor or underground use?

Copper is naturally corrosion-resistant and is generally suitable for outdoor and underground plumbing when properly protected. For buried installations, wrapping the pipe and fittings with protective tape or sleeving is typically recommended to guard against soil acidity. Always check local building codes for underground copper pipe specifications in your area.

Are these compatible with both metric and imperial copper tube?

Yes. The range includes both metric sizes (6mm, 8mm, 10mm, 15mm, 22mm, etc.) and imperial-equivalent sizes (6.35mm ≈ 1/4", 9.52mm ≈ 3/8", 12.7mm ≈ 1/2", 19.05mm ≈ 3/4", 25.4mm ≈ 1", 28.6mm ≈ 1-1/8"). Select the variant that matches your pipe's actual outer diameter.

What solder and flux should I use with these end feed fittings?

For potable water systems, use lead-free solder (such as 95/5 tin-antimony or 97/3 tin-copper alloy) and a water-soluble, non-corrosive flux approved for drinking water use. Clean the pipe end and fitting socket with emery cloth or wire wool before applying flux. Heat evenly and allow solder to flow by capillary action into the joint. Solder is not included with these fittings.

Can I use these fittings for central heating systems?

Yes. Copper end feed couplings are widely used in central heating pipework. They are generally compatible with standard central heating operating temperatures and pressures. Ensure the wall thickness selected is appropriate for your system's working pressure, and use a flux and solder rated for heating system use.

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