{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I choose the right size return bend for my pipe?", "acceptedAnswer": { "@type": "Answer", "text": "Match the inner diameter of the fitting to your pipe's outer diameter. For example, a 15mm copper pipe typically pairs with a 15mm or 16mm end feed fitting. Always verify your pipe's nominal size before ordering. If you're unsure, measure the pipe OD and consult a sizing chart." } }, { "@type": "Question", "name": "What is the wall thickness, and why does it matter?", "acceptedAnswer": { "@type": "Answer", "text": "Wall thickness ranges from 0.8mm to 1.7mm depending on the size variant. Thicker walls generally provide greater pressure resistance and durability. For standard domestic plumbing, 1mm wall thickness is typically sufficient." } }, { "@type": "Question", "name": "Can these return bends be used outdoors or in exposed locations?", "acceptedAnswer": { "@type": "Answer", "text": "Copper is naturally corrosion-resistant and is generally suitable for outdoor use. However, in areas with aggressive soil or water chemistry, additional protection such as pipe lagging or sleeving is recommended." } }, { "@type": "Question", "name": "What thread or connection standard do these fittings use?", "acceptedAnswer": { "@type": "Answer", "text": "These are end feed (capillary solder) fittings — they do not use threads. They are joined by inserting the pipe into the fitting socket and applying solder with heat. They are compatible with standard copper tube conforming to EN 1057 dimensions." } }, { "@type": "Question", "name": "What pressure rating can I expect from these fittings?", "acceptedAnswer": { "@type": "Answer", "text": "When correctly soldered, copper end feed fittings typically handle working pressures up to 16 bar for cold water and 10 bar for hot water systems, in line with EN 1254-1 standards. Actual performance depends on installation quality and system conditions." } }, { "@type": "Question", "name": "Do I need flux and solder separately?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. End feed fittings require separate flux and lead-free solder for installation. The fitting itself does not contain pre-loaded solder, giving you full control over the joint quality." } }, { "@type": "Question", "name": "What is a return bend used for in plumbing?", "acceptedAnswer": { "@type": "Answer", "text": "A return bend (also called a U-bend or 180° elbow) reverses the direction of a pipe run in a tight space. It is commonly used in radiator connections, underfloor heating loops, towel rail installations, and compact pipework layouts where a full U-turn is needed." } } ] } Copper End Feed Return Bend Fitting — Reliable 180° Pipe Reversal for Tight Plumbing Runs When your pipework needs to reverse direction in a confined space — behind a radiator, inside a wall chase, or within a compact boiler cabinet — a poorly fitted bend can mean leaks, callbacks, and wasted time. These copper end feed return bend fittings are designed for plumbers, heating engineers, and confident DIYers who need a clean, soldered 180° U-bend that holds under pressure. Each fitting is manufactured from copper and uses the end feed (capillary solder) connection method. Available in inner diameter sizes from 9.52mm (≈3/8") up to 54mm (≈2 1/8"), with wall thicknesses ranging from 0.8mm to 1.7mm depending on the size. Sold in packs of 1, 2, 3, or 10 pieces — select the quantity that matches your job. Typical applications include radiator tail connections and panel radiator loops, towel rail and heated towel rail plumbing, underfloor heating manifold return runs, and compact copper pipework in boiler rooms or utility spaces where a soldered copper U-bend fitting is the most space-efficient solution. 🔵 Compatibility: Designed for standard copper tube conforming to EN 1057 dimensions. End feed (capillary) joint — requires separate lead-free solder and flux. Not compatible with push-fit or compression systems without adapters. ✅ Key Features of These Copper End Feed Return Bend Fittings 🔄True 180° Return Bend — Reverses pipe direction in a single fitting, eliminating the need for two 90° elbows and reducing potential leak points in tight copper pipework layouts. 🪙Solid Copper Construction — Copper's natural thermal conductivity and corrosion resistance make it the standard material for hot and cold water plumbing systems and central heating loops. 📐Wide Size Range — Available from 9.52mm (≈3/8") to 54mm (≈2 1/8") inner diameter, covering the most common residential and light commercial copper pipe sizes used in US and international plumbing. 🔥End Feed Solder Joint — The capillary socket design draws solder evenly around the pipe for a full, consistent joint — a proven connection method for copper plumbing U-bend fittings under pressure. 📦Flexible Pack Quantities — Order 1, 2, 3, or 10 pieces per size to match your project scope, whether it's a single radiator connection or a multi-zone heating installation. 📏Controlled Wall Thickness — Wall thickness is specified per size variant (0.8mm–1.7mm), so you can select the appropriate fitting for your system's pressure and flow requirements without guessing. 📐 Technical Specifications — Copper End Feed Return Bend Fittings Fitting Type End Feed Return Bend (180° U-Bend) Connection Method End feed capillary solder (flux and solder sold separately) Material Copper Inner Diameter Range 9.52mm (≈3/8") — 54mm (≈2 1/8") Wall Thickness Range 0.8mm — 1.7mm (varies by size variant) Available Sizes (ID × Wall) 9.52×0.8mm, 12.7×1mm, 16×1mm, 19×1mm, 22×1mm, 22×1.5mm, 25.4×1mm, 28.6×1mm, 32×1.2mm, 32×1.5mm, 35×1.3mm, 38×1.5mm, 42×1.5mm, 45×1.5mm, 50×1.5mm, 54×1.7mm Pack Quantities 1 Pcs, 2 Pcs, 3 Pcs, 10 Pcs Compatible Tube Standard EN 1057 copper tube (confirm your pipe OD before ordering) Finish Natural copper (uncoated) Pressure Rating See variant options — contact us to confirm for your system Temperature Range Contact us to confirm for your application Country of Origin See variant options ⚠️ Note: Always verify your pipe's outer diameter against the fitting's inner diameter before ordering. Copper tube sizing conventions vary — confirm whether your pipe follows metric (EN 1057) or imperial dimensions. ❓ Frequently Asked Questions How do I choose the right size return bend for my pipe? Match the inner diameter of the fitting to your pipe's outer diameter. For example, a 15mm copper pipe typically pairs with a 15mm or 16mm end feed fitting. Always verify your pipe's nominal size before ordering. If you're unsure, measure the pipe OD and consult a sizing chart. Common conversions: 9.52mm ≈ 3/8", 12.7mm = 1/2", 25.4mm = 1", 50.8mm ≈ 2". What is the wall thickness, and why does it matter? Wall thickness ranges from 0.8mm to 1.7mm depending on the size variant. Thicker walls generally provide greater pressure resistance and durability. For standard domestic plumbing, 1mm wall thickness is typically sufficient. Larger diameter fittings in this range use proportionally thicker walls to maintain structural integrity. Can these return bends be used outdoors or in exposed locations? Copper is naturally corrosion-resistant and is generally suitable for outdoor use in most environments. In areas with aggressive soil chemistry or highly chlorinated water, additional protection such as pipe lagging or sleeving is recommended. For underground burial, consult local plumbing codes. What connection standard do these fittings use — are they threaded? These are end feed (capillary solder) fittings — they do not use threads. The pipe is inserted into the fitting socket and joined by applying heat and lead-free solder. They are compatible with standard copper tube conforming to EN 1057 dimensions. They are not compatible with push-fit or compression systems without adapters. What pressure rating can I expect from these fittings? When correctly soldered, copper end feed fittings typically handle working pressures up to 16 bar for cold water and 10 bar for hot water systems, in line with EN 1254-1 standards. Actual performance depends on installation quality, solder type, and system operating conditions. Contact us to confirm for your specific application. Do I need flux and solder separately, or are they included? Yes, flux and lead-free solder are required for installation and are sold separately. End feed fittings do not contain pre-loaded solder (unlike solder ring fittings), which gives you full control over the amount of solder applied and the quality of each joint. What is a return bend used for in plumbing? A return bend (also called a U-bend or 180° elbow) reverses the direction of a pipe run in a single fitting. It is commonly used in radiator connections, underfloor heating loops, towel rail installations, and compact pipework layouts where a full U-turn is needed without the space for two separate 90° elbows. How many pieces do I need for a typical radiator connection? A standard panel radiator typically requires one return bend at the top or bottom of the radiator loop, depending on your pipework configuration. For a single radiator, a 1 Pcs pack is generally sufficient. For multiple radiators or a full heating installation, the 10 Pcs pack offers better value per fitting. 🛒 Select your size and pack quantity above, then add to cart — ships from our US warehouse.
