Copper Street 45° Elbow — End Feed Long Radius Fitting for Refrigeration & HVAC Lines
When you're routing refrigerant lines through tight mechanical rooms, rooftop units, or split-system installations, every degree of bend and every joint matters. A poorly chosen elbow creates turbulence, pressure drop, and potential leak points that cost you callbacks and compressor life. These copper end feed long radius street 45° elbows are built for refrigeration contractors, HVAC technicians, and mechanical engineers who need reliable, code-compliant fittings that go in right the first time.
Each fitting is a single-piece copper street elbow with one plain male end and one end feed socket (female cup), available in outer diameters from 6.35mm (1/4") to 133mm (≈5.2") and wall thicknesses from 0.8mm to 3.0mm. The long radius bend geometry keeps refrigerant flow smooth and efficient. Order by the piece (1 Pcs), in packs of 5, or packs of 10 to match your job quantity.
Typical applications include split-system air conditioning refrigerant line sets, commercial refrigeration rack piping, chiller plant copper pipework, and industrial HVAC distribution headers — anywhere a compact 45° direction change with minimal pressure loss is needed in a copper end feed system.
🔵
Compatibility: Designed for end feed (solder/braze) installation on copper tube. Metric sizes conform to EN 1057 OD standards; inch-equivalent sizes (6.35mm, 12.7mm, 25.4mm, 28.6mm, 50.8mm) match ASTM B88 OD dimensions. Confirm your tube's actual outer diameter before ordering.
⚠️
Note: Wall thickness options vary by diameter. Not all wall thicknesses are available for every size — select your size and amount above to see available combinations. If you need a specific wall thickness not shown, contact us to confirm availability.
✅ Key Features of These Copper End Feed Long Radius Street 45° Elbows
-
📐Long Radius Bend Geometry — The extended centerline radius reduces turbulence and pressure drop in refrigerant flow, helping maintain system efficiency and protecting compressor performance over time.
-
🔧Street (Male × Socket) Configuration — One plain male end inserts directly into an adjacent fitting socket, eliminating a short nipple and reducing the total number of brazed joints in confined spaces.
-
🟤Copper Construction — Copper's natural corrosion resistance, thermal conductivity, and compatibility with refrigerants make it the standard material for end feed refrigeration and HVAC pipework worldwide.
-
📏Wide Size Range — 6.35mm to 133mm OD — A single source for small split-system lines up to large commercial refrigeration headers, with wall thicknesses from 0.8mm to 3.0mm to match your pressure requirements.
-
🔥Braze-Ready End Feed Socket — The socket end is sized for a close-clearance fit with copper tube, promoting even capillary flow of solder or braze alloy for a consistent, leak-free joint every time.
-
📦Flexible Pack Quantities — Available as single pieces, 5-packs, or 10-packs so you can order exactly what a job requires without overstocking or making multiple trips to the supply house.
📐 Technical Specifications — Copper End Feed Long Radius Street 45° Elbow
| Fitting Type |
Long Radius Street 45° Elbow — End Feed (Solder/Braze) |
| Connection Style |
Street (one plain male end × one socket/cup end) |
| Material |
Copper |
| Outer Diameter Range |
6.35mm (1/4") — 133mm (≈5.2") |
| Wall Thickness Options |
0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm (availability varies by OD) |
| Bend Angle |
45° |
| Bend Radius Type |
Long Radius |
| Applicable Tube Standard |
EN 1057 (metric OD) / ASTM B88 (inch-equivalent OD) |
| Typical Application |
Refrigeration, HVAC, air conditioning, chiller pipework |
| Installation Method |
Solder or silver braze with flux (end feed) |
| Pack Options |
1 Pcs, 5 Pcs, 10 Pcs |
| Finish |
See variant options |
| Pressure Rating |
Contact us to confirm — depends on size, wall thickness, and braze alloy |
| Country of Origin |
See variant options |
❓ Frequently Asked Questions
How do I choose the right size elbow for my refrigeration line?
Match the elbow's outer diameter to your copper tube's outer diameter. For example, a 6.35mm (1/4") elbow fits 6.35mm OD tube. If you're working in inches, 1" = 25.4mm, so a 25.4mm elbow suits 1" OD tubing. Always verify the tube OD before ordering — nominal pipe size and actual OD differ in some standards.
What wall thickness should I choose — 0.8mm, 1mm, 1.2mm, 1.5mm, 2mm, or 3mm?
Thicker walls generally handle higher pressures and are better suited for larger diameters or demanding refrigeration systems. For small diameters (6.35mm–12.7mm), 0.8mm wall is typically sufficient for standard refrigeration pressures. For mid-range sizes (15mm–42mm), 1mm–1.5mm is common. For large diameters (54mm+), 1.5mm–3mm is generally recommended. Consult your system's pressure rating and local codes to confirm.
How strong are these copper elbows — what pressure can they handle?
Copper end feed fittings brazed or soldered correctly typically achieve working pressures well above standard refrigeration system requirements. Actual pressure ratings depend on wall thickness, diameter, solder/braze alloy used, and operating temperature. For critical applications, refer to EN 1254 or ASTM B88 standards and your system engineer's specifications.
Can these elbows be used outdoors or in humid environments?
Copper is naturally corrosion-resistant and is widely used in outdoor HVAC and refrigeration installations. In most cases, these fittings perform well in humid or outdoor environments. For highly corrosive atmospheres (coastal salt air, industrial chemicals), additional protective measures such as insulation or coatings are generally recommended.
What thread or connection standard do these elbows use?
These are end feed (solder/braze cup) fittings — they do not use threaded connections. The socket end accepts a copper tube that is then soldered or brazed to create a permanent, leak-free joint. They are compatible with metric copper tube per EN 1057 and inch-size tube per ASTM B88 where OD dimensions match.
What is a 'street' elbow and how is it different from a standard elbow?
A street elbow (also called a male-by-socket elbow) has one plain male end sized to insert directly into another fitting's socket, and one socket (female cup) end. This eliminates the need for a short nipple between two fittings, saving space and reducing the number of joints in tight installations — common in refrigeration and HVAC work.
Why choose a long radius elbow over a short radius for refrigeration?
Long radius elbows have a gentler bend (typically a centerline radius of 1.5× the pipe diameter or more), which reduces turbulence and pressure drop in the refrigerant flow. This is especially important in refrigeration systems where maintaining efficient refrigerant circulation directly impacts system performance and compressor longevity.
Do I need flux and solder, or can I use a press-fit tool with these fittings?
These are end feed fittings designed for soldering or brazing — they require flux and solder (or braze alloy) for installation. They are not press-fit fittings. For refrigeration lines, silver-bearing braze alloy is generally required per industry standards. Always follow local codes and refrigerant system manufacturer guidelines.
🛒 Select your size and amount above, then add to cart — ships from our US warehouse.
