Copper fittings for tube connections, plus brass threaded connectors shown in the supplied range. Compare shapes and end connections, then match each item to the tube size, joining method and service conditions.
Select a thumbnail to enlarge all five supplied photos. Compare copper fittings, sealed connection examples, a shape guide and brass threaded connectors; confirm the exact component specification for your order.
A nominal inch size, a metric tube OD and a thread size are different designations. State the governing tube standard and actual outside diameter, then label every end of a reducer or branch fitting.
The dimensions below are practical sourcing examples, not a confirmed stock list or manufacturing limit. Supply combinations and tolerances are confirmed for the selected grade, temper and order.
| Form / dimension | Common inquiry examples | Selection notes |
|---|---|---|
| Metric tube connections | 12, 15, 18, 22, 28, 35, 42, 54 mm tube OD | Common purchasing examples. Match the fitting socket to the specified tube OD and standard, and confirm joint type, wall thickness and installation clearance. |
| Inch ACR tube connections | 1/4, 3/8, 1/2, 5/8, 3/4, 7/8 in tube OD | ACR field-service tube is designated by actual outside diameter. Do not substitute a nominal plumbing-tube size carrying the same inch number. |
| Nominal copper plumbing sizes | 1/2, 3/4, 1 in nominal CTS | The actual tube OD differs from the nominal designation. For example, 1/2 in nominal copper water tube has a 5/8 in OD. Identify the intended tube standard. |
| Elbows and return bends | 45° / 90° elbows; 180° U return bends | Provide each end size and type, centreline or bend radius, centre-to-end dimensions and required orientation. Long-radius and street ends must be stated separately. |
| Tees, couplings and reducers | Equal / reducing; two or three ends labelled on a sketch | Show the run and branch sizes, stop or no-stop coupling requirement, overall length and socket depth. Use a labelled drawing to avoid port-order ambiguity. |
| Brass threaded connectors | 1/4, 3/8, 1/2, 3/4, 1 in thread designations | Specify male or female at each end and the exact thread standard: NPT, BSPT or BSPP as required. Equal nominal sizes do not establish interchangeability. |
For solder-joint catalogues, C commonly denotes a tube socket and FTG a fitting/spigot end, while M and F identify male and female threads. Confirm the supplier drawing and legend rather than relying on abbreviations alone.
For press-type or other sealed connections, identify the exact end geometry, seal material, compatible tube and installation tooling. A raised bead or visible O-ring does not establish interchangeability, service approval or pressure rating.
State the copper grade, product form and relevant fitting specification. ASME B16.22 is a reference for wrought copper and copper-alloy solder-joint pressure fittings; the applicable specification and conformity evidence must be agreed for the supplied item.
The yellow-coloured threaded assortment is presented separately from copper fittings. Specify the brass alloy, thread system, manufacturing requirement and any lead-content or dezincification-resistance requirement needed by the project.
For fittings with sealing elements, identify the seal material and intended medium, temperature and joining system. Potable-water, refrigerant, gas or other service evidence must be confirmed for the exact product, not inferred from its appearance.
Prepare a bill of materials with fitting shapes, pipe or tube standards, sizes and end types. If drinking-water contact is required, state the destination-market requirements and request matching product evidence.
Elbows, tees and transitions can form part of a circuit layout. Include the working fluid, treatment chemicals where relevant, temperature/pressure conditions and the specified joining system.
Return bends, reducers and branch pieces may be specified by tube OD and a dimensioned drawing. State the refrigerant or other medium, cleanliness, sealing and connection requirements; fittings selected for water are not automatically approved for refrigeration.
For connection pieces and custom assemblies, include the drawing revision, port positions, mating components and dimensional datums. Confirm copper versus brass material and any forming, machining or surface requirement per item.
Identify elbow angle, bend radius, tee layout, reducer ends and coupling stop type. Send a sketch when the port sequence, orientation or installation envelope is critical.
Specify the required end design, tube fit and approved joining process. Joint performance depends on the complete combination of fitting, tube, joining material and installation procedure.
Provide thread details or the exact sealed-joint system. State seal, mating surface and installation requirements; special connection combinations are reviewed before quotation.
List internal cleanliness, deburring, end protection, marking and traceability needs. For custom parts, agree cut, formed or machined dimensions and any surface finish against the drawing.
A useful parts list includes shape, size at each end, joining method and quantity. Add the tube standard, thread or seal specification and service conditions so each item can be matched accurately.
Request a fittings quotationNo. Copper tube fittings and brass threaded connectors are separate material families. Identify the required alloy and part specification for each item, especially where potable-water or other project requirements apply.
No. Nominal plumbing-tube size, actual ACR tube OD and thread size use different designations. Give the actual tube OD and standard, plus the joint or thread type. For reducers and tees, label every port.
No. Provide the exact connection system, seal, tube and tooling specification together with the service conditions. Compatibility and required approvals are confirmed for the supplied item.
Straight copper tubes for HVAC and fabrication. Request your outside diameter, wall thickness, length, material condition and export packing.
Copper pancake coils for ACR and fabrication inquiries. MOQ: 250 kg, 500 kg or 1 metric ton, depending on the specification.
Bare and tin-plated copper busbars for electrical connections. Explore flat-bar sizes, edge profiles, finish requirements and drawing-based processing.