COPPER FITTINGS - T2 Copper, Full Range for Refrigeration Piping
Kilterra T2 copper fittings are manufactured with precision, covering elbows, tees and couplings for reliable brazed connections.
Strict dimensional and material control ensure consistent quality; bulk supply with fast delivery is available.
Our copper fittings range covers elbows, tees and reducers in various sizes, suitable for brazed connections.
Six core advantages that keep your refrigeration system protected around the clock
Made of T2 copper (≥99.9% Cu) with high conductivity, good ductility and corrosion resistance - the first choice for piping.
Elbows, tees, straight/reducing couplings, U-bends, sight glasses and drain valves across the full line.
T2 copper brazes superbly for strong, sealed joints that resist cold joints and leaks.
Precision machined and pressure tested to withstand high pressure and resist refrigerant/oil corrosion.
Precision molds and CNC machining give accurate port dimensions that mate tightly with copper tube.
Special sizes and shapes can be customized for non-standard systems.
Detailed parameters for a precise match to your application
| Fitting Type | Common Sizes | Material | Connection | Applicable Tube Size | Working Pressure |
|---|---|---|---|---|---|
| 90° elbow | 1/4"~1-1/8" | T2 copper | Socket welding | Φ6.35~Φ28.6mm | 4.0MPa |
| 45° elbow | 1/4"~7/8" | T2 copper | Socket welding | Φ6.35~Φ22.2mm | 4.0MPa |
| Tee | 1/4"~1-1/8" | T2 copper | Socket welding | Φ6.35~Φ28.6mm | 4.0MPa |
| Coupling / reducing coupling | 1/4"~1-1/8" | T2 copper | Socket welding | Φ6.35~Φ28.6mm | 4.0MPa |
| U-bend | Φ9.52~Φ28.6mm | T2 copper | Socket welding | Φ9.52~Φ28.6mm | 4.0MPa |
| Sight glass | 1/4"~7/8" | Brass + glass | Welding / thread | Φ6.35~Φ22.2mm | 3.5MPa |
| Drain valve | 1/4"~1/2" | Brass | Threaded connection | Φ6.35~Φ12.7mm | 3.5MPa |
| Corrugated / vibration tube | 1/2"~1-5/8" | Stainless steel + copper | Welding / flange | Φ12.7~Φ35mm | 4.0MPa |
Widely deployed across commercial and industrial refrigeration
Piping connections and branches in chillers, heat pumps and VRF.
Connections, elbows, tees and sight glasses in cold/freezer rooms.
Piping accessories for supermarket cases, displays and ice makers.
Pipe replacement, elbow swaps and joint repair during maintenance.
Kilterra delivers professional refrigeration component solutions with OEM/ODM support.
When specifying copper fittings for refrigeration piping, wall thickness and temper matter as much as the nominal diameter. Kilterra's T2 copper elbows, tees, reducers and U-bends are supplied in soft, half-hard and hard temper, with smooth bore and uniform wall thickness to prevent turbulence and weak braze joints. Match fitting size to the actual tube OD rather than nominal pipe size, and confirm compatibility with R410A, R32 and R134a systems before ordering. Every batch ships with dimensional and material reports, and our export experience covers OEM and aftermarket buyers across Europe, the Middle East and Southeast Asia.
When specifying copper fittings, wall thickness and temper matter as much as the nominal diameter. For refrigeration lines, T2 copper in soft temper suits vibration-prone runs, while half-hard bends hold shape on headers. Match fitting bore to tube OD precisely, since a mismatched elbow or tee creates turbulence and weak braze joints. Kilterra exports these fittings to HVAC contractors across Europe and the Middle East, with batch traceability and third-party inspection supporting OEM orders from 100 pieces.
When specifying copper fittings for refrigeration piping, match the fitting alloy and temper to the base tube rather than choosing by size alone. Kilterra's T2 copper elbows, tees, reducers and U-bends are formed to tight wall-thickness tolerances, so capillary gaps stay uniform during brazing and joint porosity is minimized. This matters on suction and liquid lines where vibration and thermal cycling are constant. We also supply sight glasses and drain valves for the same assemblies, letting contractors source a complete piping package from one factory with stable lead times for export orders.
Specifying copper fittings begins with matching alloy and temper to the line's pressure and vibration profile. For refrigeration duty, T2 copper offers high thermal conductivity and ductility, letting elbows, tees and reducers deform slightly under thermal cycling instead of cracking at the braze joint. Wall thickness must suit the tube OD and system pressure, while end preparation—square cut, deburred, clean oxide—determines capillary flow during brazing. Confirm fittings are degreased and capped to prevent moisture ingress, and verify batch traceability for export documentation. Kilterra supplies T2 copper fittings in bulk with dimensional inspection and fast lead times for OEM and aftermarket orders.
Choosing copper fittings starts with matching tube OD, wall thickness and temper to your brazing method, since a mismatched elbow or tee can cause filler-metal starvation and pinhole leaks after thermal cycling. For R410A and R32 systems, specify T2 (C11000) copper with 99.9% minimum purity, then confirm the fitting is annealed for bend-and-braze work or hard-temper for straight runs. Kilterra supplies elbows, tees, reducers and U-bends in sizes from 1/4" to 4-1/8", each lot traceable and pressure-tested, with export packaging and documentation ready for OEM and aftermarket orders.
Choosing the right copper fittings starts with matching alloy and wall thickness to the refrigerant and operating pressure, since R410A and CO2 systems demand thicker walls than standard R22 lines. Elbows, tees, and reducers should be sized to the actual tube OD rather than nominal pipe size, and every joint must be brazed with nitrogen purge to prevent internal oxidation. Kilterra produces T2 copper fittings under ISO9001, CE, and RoHS controls, exporting to HVAC contractors and OEMs worldwide with stable lead times and factory-direct pricing.
When specifying copper fittings for refrigeration piping, wall thickness and temper matter as much as the nominal diameter. Kilterra produces T2 copper elbows, tees, reducers and U-bends to metric and imperial sizes, with annealed temper for clean bending and uniform brazing gaps. Every batch is checked for dimensional tolerance, surface finish and material composition, so contractors in Europe, the Middle East and Southeast Asia receive fittings that braze reliably on site. Custom sizes, mixed containers and factory-direct pricing are available for OEM and distributor programs.
When specifying copper fittings for refrigeration systems, wall thickness and temper matter as much as nominal size. Kilterra's T2 copper elbows, tees and reducers are annealed for clean, porosity-free brazed joints, with OD tolerances held tight enough for capillary and press-fit assemblies. Common applications include split A/C line sets, condensing units, cold-room headers and ice-machine circuits, where mixed tube sizes require accurate reducers rather than field-fabricated adapters. Drawing on years of OEM export experience, we match fitting dimensions to ASME B16.22 and EN 1254 references, and can supply batch-tested lots with material certificates.
Brazed joints fail more often from mismatched fitting tolerance than from poor torch work. When specifying copper fittings, confirm the wall thickness matches your tubing gauge, since thin-wall elbows can collapse under prolonged heat, and check that the cup depth gives enough capillary contact for the filler alloy to flow. For R410A and CO2 systems running higher pressures, T2 copper fittings with uniform grain structure resist stress cracking at the joint. Kilterra exports these fittings to HVAC contractors across Europe and the Middle East, with batch-level material certificates available.
Choosing copper fittings for refrigeration piping depends on three practical factors: alloy grade, joint geometry, and system pressure. T2 copper fittings suit brazed connections in condensers, evaporators, and compressor lines, where vibration resistance and leak-free joints matter most. Elbows handle directional changes, tees manage branching circuits, and reducers bridge different pipe diameters without turbulence. Confirm wall thickness and temper match your operating pressure, then verify cleanliness, since residue inside fittings can contaminate refrigerant and block expansion valves. For export projects, request batch traceability and third-party inspection reports to avoid installation delays.
When specifying copper fittings for refrigeration piping, wall thickness and temper matter as much as the nominal diameter. Kilterra's T2 copper elbows, tees and couplings are supplied in annealed condition for easy bending and brazing, with controlled phosphorus content that supports sound capillary joints on R410A, R32 and CO2 systems. Common applications include condenser coil headers, compressor discharge lines, ice-maker circuits and receiver connections. Each lot is dimensionally inspected and packed for export, with experience shipping mixed-size orders to HVAC contractors and OEM assemblers across Europe, the Middle East and Southeast Asia.
Choosing copper fittings for refrigeration piping starts with matching alloy and temper to the line's operating pressure and refrigerant. T2 copper, with its high conductivity and ductility, suits brazed joints in condensers, evaporators and compressor discharge lines where vibration and thermal cycling are constant. Confirm wall thickness against system pressure, verify dimensional tolerances for leak-free brazing, and check certifications such as ISO9001, CE and RoHS before bulk ordering. For OEM projects, request sample batches to validate fit-up and capillary flow, then scale to container-volume supply with stable lead times.
When specifying copper fittings, match the temper and wall thickness to the brazing method and system pressure rather than size alone; T2 copper elbows, tees and reducers should be annealed for tight-radius bends and dimensionally checked at the cup depth, since a shallow socket is the most common cause of braze leakage in split systems and ice-maker lines. Confirm each lot is phosphorous-deoxidized for copper-to-copper joints without flux, and request dimensional and hardness reports with the shipment.
Specifying copper fittings starts with matching alloy, wall thickness and end configuration to the line being joined. For refrigeration work, T2 copper elbows, tees, reducers and couplings should be selected by outer diameter and rated for brazed joints, with bend radius and port alignment checked against the actual pipe route. Correct fitting selection protects flow, reduces braze rework and keeps assemblies leak-free under vibration and thermal cycling. As an ISO9001-certified supplier, Kilterra supports export orders with dimensional inspection, material traceability and bulk packing for OEM and distributor programs.
Correct specification starts with matching fitting wall thickness and temper to the actual line pressure and tube OD, not just the nominal size. For R410A and CO2 systems, specify fully annealed T2 copper elbows and tees so the joint deforms evenly during brazing instead of cracking at the throat. Confirm each lot is capped, nitrogen-purged and free of drawing lubricant residue, since surface contamination is a leading cause of pinhole leaks in field brazes. For export orders, request dimension reports to ASME B16.22 or EN 1254-1 and specify barcoded, moisture-barrier cartons so fittings arrive oxide-free after long sea transit.
When specifying copper fittings, match the alloy and temper to the joining method: T2 copper elbows, tees and reducers should be supplied annealed for clean brazed joints, with wall thickness and dimensional tolerances checked against the pipe OD to prevent gaps or excess clearance at the cup. For OEM lines running R410A or R32, confirm fittings are phosphorous-deoxidized and free of internal burrs that could shed particles into filter driers and expansion valves. Kilterra supplies these fittings in bulk to refrigeration contractors and equipment builders across Europe and the Middle East, with batch-level material traceability and consistent cup depth for repeatable furnace or torch brazing.