Copper End Feed Stop End Cap Fittings | Inside Dia 6.35mm–159mm

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Sale price$1.80 USD
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In stock (500 units), ready to be shipped

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Description

Copper End Feed Stop End Cap Fittings — Reliable Pipe Termination for Plumbing & Heating Systems

When you need to cap off a pipe run cleanly and permanently, a loose or ill-fitting end cap is the last thing you want. Whether you're a professional plumber finishing a central heating circuit or a confident DIYer sealing an unused outlet, these copper end feed stop end cap fittings give you a leak-free, soldered termination you can trust.

Each fitting is machined from copper and features an end feed (solder ring-ready) socket design. Available in inside diameters from 6.35mm (1/4") to 159mm (≈6.26"), with wall thicknesses ranging from 0.8mm to 3.0mm depending on size. Sold individually (1 Pcs) or in value packs of 5 or 10 pieces to suit single repairs or larger installations.

Typical use cases include terminating dead-leg pipe runs in domestic hot and cold water supply, capping off branch outlets in central heating systems, and sealing pipe ends during pressure testing on commercial plumbing projects — all scenarios where a durable, soldered copper end cap for pipe plumbing is the correct solution.

🔵 Compatibility: Designed for standard copper pipe. Match the fitting's inside diameter to your pipe's outside diameter. Sizes available: 6.35mm–159mm. Thread standard: end feed (solder joint) — no threads. Confirm pipe OD before ordering.

✅ Key Features of These Copper End Feed Stop End Cap Fittings

  • 🔩End Feed Solder Joint — Socket accepts standard lead-free solder for a permanent, pressure-rated seal without compression rings or push-fit inserts.
  • 🛡️Copper Construction — Naturally corrosion-resistant material performs reliably in hot water, cold water, and central heating pipe termination applications.
  • 📐Wide Size Range — Inside diameters from 6.35mm (1/4") to 159mm (≈6.26") cover everything from small-bore domestic copper pipe end cap needs to larger commercial pipe runs.
  • 📦Flexible Pack Quantities — Order 1, 5, or 10 pieces per size so you only buy what you need, whether it's a single repair or a multi-outlet installation.
  • ⚙️Consistent Socket Depth — Machined socket ensures full solder penetration and even capillary flow around the pipe end, reducing the risk of cold joints on copper plumbing fittings.
  • 🏠Versatile Application — Suitable for domestic and light commercial use including hot and cold water supply, heating circuits, and pressure-test capping on copper pipe plumbing systems.

📐 Technical Specifications — Copper End Feed Stop End Cap

Fitting Type End Feed Stop End Cap (Solder Joint)
Material Copper
Inside Diameter Range 6.35mm (1/4") – 159mm (≈6.26")
Wall Thickness Range 0.8mm – 3.0mm (varies by size)
Connection Method End Feed (Capillary Solder)
Solder Type Lead-free solder recommended (NSF/ANSI 61 compliant for potable water)
Finish Bare copper
Pack Options 1 Pcs / 5 Pcs / 10 Pcs
Typical Working Pressure See variant options — generally up to 28 bar when correctly soldered
Compatible Pipe Standard Standard copper pipe (EN 1057 metric dimensions); confirm OD before ordering
Suitable Media Hot & cold water, central heating fluid, gas (confirm with local code)
Country of Origin Contact us to confirm
⚠️ Size Note: The size listed (e.g., "16mm x 1.0mm") refers to the fitting's inside diameter × wall thickness. This inside diameter should match your copper pipe's outside diameter. If you are unsure, measure your pipe OD with a caliper before selecting a variant.

❓ Frequently Asked Questions

How do I choose the right size stop end cap for my pipe?

Measure the outside diameter (OD) of your copper pipe. The inside diameter (ID) of the cap should match the OD of the pipe. For example, a 15mm copper pipe typically requires a 15mm end cap. Our variants list the inside diameter — select the one that matches your pipe's OD. When in doubt, confirm with a caliper before ordering. Common conversions: 6.35mm = 1/4", 9.52mm = 3/8", 12.7mm = 1/2", 25.4mm = 1", 50.8mm ≈ 2".

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

Copper end feed fittings generally support working pressures up to 28 bar (approximately 400 psi) when correctly soldered, though the actual rating depends on the pipe size, wall thickness, and solder quality. Always verify with your local plumbing code requirements and the pipe manufacturer's specifications.

Can these stop end caps be used outdoors or in corrosive environments?

Copper is naturally corrosion-resistant and generally performs well in outdoor, humid, and buried environments. In most cases it is suitable for exposed installations. In highly acidic soil conditions, additional protection may be advisable. Contact us to confirm suitability for your specific environment.

Are these fittings compatible with standard copper pipe thread or connection standards?

These are end feed (capillary solder) fittings — they do not use threads. They are designed to be compatible with standard copper pipe dimensions commonly used in plumbing and heating systems, including EN 1057 (metric) specifications. Always verify the inside diameter of the fitting matches your pipe's outside diameter before installation.

Do I need special tools to install these end caps?

Installation requires standard soldering tools: a pipe cutter, flux, lead-free solder, and a propane or MAPP gas torch. No specialist equipment is needed beyond what a typical plumber or experienced DIYer would already own. Clean the pipe end and fitting socket thoroughly before applying flux and heat.

Which applications are these copper end caps suitable for?

These stop end caps are generally suitable for domestic and commercial cold and hot water supply, central heating systems, and gas pipework (subject to local regulations and code compliance). Common uses include terminating pipe runs, capping off unused outlets, and sealing pipe ends during pressure testing on copper plumbing systems.

What solder should I use with these end feed fittings?

Use lead-free solder compliant with your local plumbing code — typically a tin-copper or tin-silver alloy. For potable water systems in the US, ensure the solder meets NSF/ANSI 61 requirements. Always apply flux to both the pipe end and the fitting socket before soldering, and heat the fitting evenly until solder flows freely around the joint.

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

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