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Copper Fittings for HVAC, Plumbing & Industrial Applications
Product Overview
R V Metal Corporation supplies a complete range of high-precision Copper Fittings engineered for HVAC, Plumbing, Refrigeration, Medical Gas Pipeline Systems (MGPS) and diverse industrial applications. Manufactured from premium C12200 Copper DHP grade, our fittings deliver excellent brazing performance, leak-proof joint integrity and long-term reliability under high pressure and temperature variations. Every fitting is produced with accurate tolerances, smooth internal surfaces for optimum refrigerant or fluid flow, and full compliance with international standards such as ASTM B280, ASME B16.22, EN 1254 and ISO norms. Whether for VRF/VRV systems, chilled water lines, potable water distribution, gas delivery networks or industrial heat-transfer circuits, our copper fittings provide superior mechanical strength, corrosion resistance, and service life—making them the preferred choice for OEMs, contractors and engineering consultants across the industry.
Technical Specifications
| Technical Specification – Copper Fittings | |
|---|---|
| Material Grade | Copper DHP – C12200 (99.9% Cu, ≤0.04% Phosphorus) |
| Manufacturing Standards | ASME B16.22, ASTM B280, ASTM B75, EN 1254, ISO 559 |
| Available Types | Elbows (45°/90°), Couplings, Reducers, Tees, U-Bends, End Caps, Unions, Sockets, Flare Fittings, Male/Female Adapters, P-Traps, Wyes |
| Size Range | 1/4" to 4" (Standard); Custom fittings up to 8" available on request |
| Dimensional Tolerance | ±0.02 mm to ±0.10 mm depending on size and type per ASME/EN norms |
| Form | Brazed, Wrot, Seamless, Press-Fit Compatible (V-Profile & M-Profile) |
| Pressure Rating | Up to 45 bar (HVAC & Refrigeration); Up to 25 bar (Plumbing Hot/Cold Water) |
| Temperature Range | -40°C to +150°C (Brazed Fittings) / Up to 110°C (Press Fittings) |
| Brazing Compatibility | Suitable for Silver Brazing (Ag5, Ag15) and Phosphorus-Copper Brazing (BCuP) |
| Corrosion Resistance | Excellent resistance to water, refrigerants (R22, R410A, R32, R290, R134a), saline atmosphere, and industrial gases |
| Surface Finish | Smooth, burr-free internal bore; degreased & cleaned for HVAC/MGPS applications |
| Leak-Proof Performance | 100% Hydrostatic Tested for pressure integrity |
| Application Suitability | HVAC, VRF/VRV Systems, Refrigeration Lines, Plumbing Hot/Cold Water, Compressed Air, Medical Gas, Industrial Heat Transfer Systems |
Chemical Composition
| Chemical Composition – Copper Fittings (C12200 DHP Copper) | ||
|---|---|---|
| Element | Specification (%) | Description |
| Copper (Cu) | 99.90% min | Base metal ensuring high conductivity & corrosion resistance |
| Phosphorus (P) | 0.015 – 0.040% | Improves deoxidation, enhances brazing properties |
| Lead (Pb) | 0.005% max | Controlled to maintain ductility and prevent contamination |
| Iron (Fe) | 0.005% max | Kept minimal for corrosion resistance |
| Sulphur (S) | 0.005% max | Excess sulphur can cause embrittlement; tightly controlled |
| Arsenic (As) | 0.002% max | Traces allowed; does not affect mechanical or conductivity properties |
| Total Impurities | 0.02% max | Maintains high purity for HVAC, plumbing & industrial reliability |
UNS Codes & Grades
| UNS Codes & Grades – Copper Fittings for HVAC, Plumbing & Industrial Applications | ||
|---|---|---|
| UNS Code | Grade | Description |
| C12200 | DHP Copper (Deoxidized High Phosphorus) | Industry-standard grade for copper fittings; excellent formability, brazing performance & corrosion resistance. |
| C11000 | ETP Copper (Electrolytic Tough Pitch) | High electrical conductivity; used in electrical fittings but **not recommended** for HVAC due to hydrogen embrittlement risk. |
| C12000 | DLP Copper (Deoxidized Low Phosphorus) | Good ductility & weldability; limited HVAC use but acceptable for some plumbing fittings. |
| C10200 | OFHC Copper (Oxygen Free High Conductivity) | Used for high-purity industrial applications, electronics & vacuum environments; rarely used for normal fittings. |
| C12200 (Preferred) | Primary Fittings Grade | All standard copper fittings (elbows, tees, reducers, couplers, unions) are manufactured using **C12200 DHP** grade as per ASTM & EN standards. |
Mechanical, Physical & Fabrication Properties
| Mechanical, Physical & Fabrication Properties of Copper Fittings (HVAC, Plumbing & Industrial Applications) | ||
|---|---|---|
| Property | Typical Value | Description / Relevance |
| Tensile Strength | 205 – 250 MPa | Ensures fitting rigidity & leak-free performance under pressure. |
| Yield Strength | 65 – 90 MPa | Allows safe deformation during brazing & system installation. |
| Elongation | 30% – 40% | High ductility prevents cracking during bending or expansion. |
| Hardness | 45 – 65 HV (Annealed) | Ideal softness for flare connections, press-fit and brazing. |
| Thermal Conductivity | ~ 385 W/m·K | Superior heat transfer for HVAC, refrigeration & heat pump systems. |
| Electrical Conductivity | 85% – 100% IACS | Important for electrical earthing & grounding fittings. |
| Melting Point | 1083°C | Ensures thermal stability during brazing & high-temperature operation. |
| Density | 8.9 g/cm³ | Used for calculating theoretical weight for fittings & assemblies. |
| Brazability | Excellent | Perfect compatibility with silver brazing alloys (5% / 15% Ag). |
| Weldability | Good | Suitable for TIG, MIG & resistance welding where required. |
| Formability | Excellent (Annealed) | Allows deep-drawing, bending, expanding & reducing operations. |
| Corrosion Resistance | High | Resistant to water, refrigerants, brine & indoor environments. |
| Hydrogen Embrittlement | None (for C12200 DHP) | DHP fittings avoid cracking risks present with ETP fittings. |
Common Names & International Identifiers
| Common Names & International Identifiers of Copper Fittings (HVAC, Plumbing & Industrial Applications) | ||
|---|---|---|
| Common Name | International Identifier | Description / Usage |
| Copper Fittings | General ISO / ASTM Fittings Classification | Standard terminology for all copper elbows, tees, couplings, reducers, etc. |
| Brazing Fittings | BS EN 1254 / ASME B16.22 | Used in HVAC, refrigeration & plumbing systems requiring brazed joints. |
| ACR Copper Fittings | ASTM B280 / SAE J514 | Designed specifically for refrigeration-grade copper tube dimensions. |
| Refrigeration Fittings | UL Listed / ASTM Performance Standards | Used in VRF/VRV, chillers, cold rooms & commercial HVAC systems. |
| Plumbing Copper Fittings | BS EN 1254 / ASME B16.18 | Water supply, hot water lines & industrial plumbing applications. |
| Medical Gas Fittings | ASTM B819 / EN 13348 | Degreased, cleaned fittings for oxygen & medical gas pipelines. |
| Press-Fit Copper Fittings | EN 10311 / ISO Press Systems | Mechanical press fittings used in fast installation plumbing systems. |
| Capillary Fittings | Capillary Brazing Standard ISO/BS | Small-diameter precision fittings for refrigeration circuits & capillary tubing. |
| Compression Fittings | BS 864 / ISO Compression Specs | Used in domestic plumbing where brazing is not preferred. |
| Flare Fittings | SAE J512 / J513 | Used for refrigerant lines with flared connections (R22/R410A systems). |
| Solder Ring Fittings | EN 1254-1 | Used in plumbing lines where pre-soldered joints are preferred. |
Standards & International Equivalents
| Standards & International Equivalents of Copper Fittings (HVAC, Plumbing & Industrial Applications) | |||
|---|---|---|---|
| Standard | Country / Region | Equivalent Copper Fittings Specification | Application |
| ASME B16.22 | USA | Wrought Copper & Copper Alloy Solder-Joint Pressure Fittings | HVAC, plumbing, refrigeration brazed fittings |
| ASME B16.18 | USA | Cast Copper Alloy Solder-Joint Pressure Fittings | Heavy-duty plumbing & commercial piping |
| ASTM B280 | USA | Refrigeration Copper Tube Compatibility | ACR fittings for HVAC & VRF/VRV installations |
| ASTM B819 | USA | Seamless Copper Tube for Medical Gas | Medical gas brazing fittings (oxygen-safe) |
| EN 1254 (Parts 1–5) | Europe | Copper & Copper Alloy Fittings Standards (Solder, Capillary, Compression) | European plumbing, heating & cooling systems |
| EN 1057 | Europe | Compatibility Standard for Copper Tube Dimensions | Press-fit, solder-joint & compression fittings |
| ISO 6957 | International | Copper Alloy Corrosion Resistance Guidelines | Industrial environments, water & chemical systems |
| ISO 8434 | International | Metallic Tube Compression Fittings | Industrial compression fittings for fluid systems |
| BS 864 | UK | Compression Fittings for Copper Tubes | Domestic hot/cold plumbing installations |
| SAE J512 / J513 | USA | Fittings for Automotive & Refrigeration Systems | Flare fittings for refrigeration/automotive AC |
| UL 207 | USA / International | Safety Rating for Fittings Used in Refrigeration Circuits | UL-listed AC/HVAC flare & brazed fittings |
| JIS H3300 | Japan | Dimensions for Copper Pipes & Fittings | Japanese HVAC & commercial piping |
Applications
| Applications of Copper Fittings for HVAC, Plumbing & Industrial Use | ||
|---|---|---|
| Application Area | Typical Fittings Used | Purpose / Functional Use |
| HVAC & Refrigeration Systems (ACR / VRF / VRV) | Elbows, Reducers, Couplings, U-Bends, Sockets, Flaring & Swaging Fittings | Refrigerant flow control, leak-proof brazed joints, oil return management, pressure-safe piping |
| Plumbing – Hot & Cold Water Supply | Tees, Elbows, Couplings, Adaptors, End Caps | Distribution of potable water, corrosion-resistant jointing, long-life plumbing systems |
| Medical Gas Pipeline Systems (MGPS) | Degreased Fittings (Oxygen-clean elbows, tees, reducers) | 100% contamination-free medical gas delivery under ASTM B819 / EN 13348 compliance |
| Fire-Fighting Systems | Heavy-duty Elbows, Tees, Couplings | Reliable high-pressure water and suppression agent transport |
| Industrial Cooling & Heat Exchangers | Return Bends, Header Fittings, Distributor Fittings | Efficient coolant circulation, thermal transfer support, long cycle durability |
| Automotive & Heavy Machinery | Flare Fittings, Compression Fittings | Fuel line connections, brake systems, hydraulic systems |
| Oil & Gas / Chemical Processing | Compression Fittings, Adaptors, Reinforced Joints | Safe transfer of corrosive or high-temperature fluids |
| Solar Heating & Renewable Energy | Brazed Fittings, U-Bends, Flare Connectors | High-temperature copper circuits in solar water heating systems |
| Electrical Earthing Systems | Earth Clamps, Lugs, Copper Adaptors | Reliable grounding and bonding of electrical systems |
| General Engineering & OEM Manufacturing | Custom Machined Fittings, Reducers, Header Components | Precision components for bespoke machinery and equipment |
Standard Copper Fittings Dimensional Chart
| Standard Copper Fittings – Dimensional Chart & Gauge Compatibility | |||||
|---|---|---|---|---|---|
| Fitting Type | Standard Sizes Available | End Connection Type | Compatible Copper Tube Gauge | Applications | Notes |
| 90° Elbow | 1/4", 3/8", 1/2", 5/8", 3/4", 1", 1¼", 1½", 2" | Solder/Braze Socket | Type K, L, M, ACR | HVAC, Plumbing, Industrial Cooling | Available in long-radius & short-radius |
| 45° Elbow | 1/4" to 2" | Solder/Braze Socket | Type L, M, ACR | Plumbing, Refrigeration | Used for directional changes with lower pressure drop |
| Coupling (Full) | 1/4" to 4" | Solder/Braze Socket | Type K, L, M, ACR | Pipe extension, repairs | Available with/without stop |
| Reducer Coupling | 1/4" × 1/8" up to 4" × 3" | Solder/Braze Socket | Type L, ACR | HVAC, Industrial | Used for step-down transitions |
| Equal Tee | 1/4" to 4" | Solder/Braze | Type K, L, M | Plumbing distribution, chilled water | Provides 3-way pipe branching |
| Reducing Tee | 1/2" × 1/4" × 1/2" up to 4" × 2" × 4" | Solder/Braze | Type L, M | HVAC & Industrial process lines | Used where flow rate changes |
| End Cap | 1/4" to 4" | Solder/Braze | Type L, M | Pipe line termination | Brazed in HVAC; soldered in plumbing |
| Male/Female Adaptor | 1/4" to 2" | Threaded × Socket | Type L, M | Connection to valves, pumps, equipment | NPT threads as per ASME |
| U-Bend / Return Bend | 1/4" to 1½" | Braze | ACR, Type L | Heat exchangers, HVAC coils | Used for 180° return loops |
| Slip Coupling / Repair Coupling | 1/2" to 2" | Socket | Type L, M | Plumbing repairs | No internal stop |
| Flare Fitting | 1/4", 3/8", 1/2", 5/8" | Flare (45° SAE) | ACR Tubes only | Refrigerant circuits (R22/R410A/R32) | Used for service valves & expansion devices |
| Swage / Expansion Fittings | 1/4" to 1⅛" | Braze Socket | ACR Tubes | HVAC | Used to join pipes without couplings |
| Y-Branch / Wye Fitting | 1/2" to 2½" | Braze | Type L / ACR | VRF/VRV multi-split units | Ensures balanced refrigerant distribution |
90° Elbow
45° Elbow
Coupling
Reducer Coupling
Equal Tee
Reducing Tee
End Cap
Male Adaptor
Female Adaptor
U-Bend
Flare Fitting
Y-Branch
