What Are Copper Y Branch Fittings?
Copper Y branch fittings are three-port copper components used to form branch junctions in refrigerant piping. In a VRF (variable refrigerant flow) system, they connect a common pipe section with two branch paths, with dimensions and layout selected for the specified equipment and circuit.
The product photographs show shaped copper branch components with a main tube leg and divided connection ends. Each port, straight joining length and branch position is defined by the approved drawing. The part’s external shape alone does not establish refrigerant compatibility, pressure capability or an equal flow split.
Yijin supplies drawing-based copper components for OEM air conditioning and refrigeration projects. For other junction shapes, explore our copper branch fittings and copper tee fittings for refrigeration.
Copper Y Branch Fitting Specifications
Use the following specification fields to define your component. Yijin reviews the requested material, branch geometry and connection details before confirming manufacturing feasibility and the quoted scope.
| Parameter | Specification / Options |
|---|---|
| Product Type | Copper Y Branch Fittings / VRF Refrigerant Branch Components |
| Material | Copper; exact grade, governing standard and delivery condition to specification |
| Port Arrangement | One common connection and two branch connections; circuit direction to system design |
| Connection Sizes | Actual OD / ID, wall section and connection fit defined for ports A, B and C |
| Branch Geometry | Branch angle, centerline route, spacing and leg lengths to approved drawing |
| Connection-End Details | Straight or drawing-defined formed ends; insertion length and joining requirements specified |
| Gas / Liquid Line | Specify the intended circuit and each component separately |
| Refrigerant & Operating Limits | Defined by the equipment specification and agreed component validation |
| Manufacturing Scope | Forming, cutting and connection-end processing; additional operations as agreed |
| Cleanliness & Protection | Internal condition, end protection and packaging requirements to order |
| Inspection | Dimensions, visible condition and any agreed assembly-fit or additional testing |
| Supplied Items | Bare component or agreed assembly; insulation and accessories only when specified |
| OEM Service | Drawing review, sample development and repeat production |
| MOQ & Delivery | Confirmed after drawing, quantities, tooling and inspection review |
Photographs are configuration references rather than dimensioned drawings. State the selected equipment, refrigerant circuit and acceptance requirements with the RFQ so the correct part can be reviewed.
VRF Branch Configurations & Connection Options
The following features can be defined for technical review. They describe component options rather than a universal replacement kit or guaranteed stock range.
Gas-Line Branch Components
Identify the gas-line component on the piping schedule and show the common and branch port dimensions separately. Include straight connection lengths and the available clearance around the joint.
Liquid-Line Branch Components
Define the liquid-line branch from the approved system selection. Its connection sizes and geometry are reviewed independently from the gas-line component, including when both are ordered together.
Equal or Unequal Port Dimensions
Specify actual mating dimensions for ports A, B and C. Equal-size or reducing arrangements are subject to drawing review; end diameter and wall section should be clear at every connection.
Custom Branch Routes & Ends
Branch angle, leg length, outlet direction and formed end features can be submitted for an OEM project. Include assembly datums, joining access and the overall installation envelope.
How to Specify a Copper Y Branch Fitting for VRF
Select the branch component from the equipment manufacturer’s approved piping design before preparing the RFQ. A useful specification links the equipment model and branch location to a controlled component drawing.
- Identify the VRF equipment model and applicable piping / branch selection reference.
- State whether the part serves a gas, liquid or other specified circuit.
- Provide the branch location, connected capacity information and approved port dimensions.
- Label ports A/B/C and show connection fit, joining lengths, branch orientation and installation clearances.
- Agree the component sample, material documentation and required inspection or validation.
Manufacturer guidance illustrates why system selection matters: the Daikin VRV installation manual, Sections 7.3–7.4, selects branch kits using equipment capacity and downstream connected capacity. This is a design-reference example; Yijin component compatibility must be reviewed for your specified equipment.
Copper Y Branch Manufacturing & Processing
Yijin reviews the material, branch route and connection interfaces before confirming the manufacturing plan. The agreed drawing revision and sample requirements guide the supplied component.
Material & Geometry Review
Confirm the copper designation, tube condition and dimensions. Review branch angle, leg lengths, bend route and end positions together with tooling and sample requirements.
Forming & Connection Preparation
Forming, cutting and connection-end processing follow the approved geometry. Specify additional assembly or joining operations in the order so the supplied scope and inspection points are clear.
Cleaning, Protection & Packing
Agree internal-cleanliness criteria, end protection and handling requirements. Packaging is reviewed to protect projecting tube legs and connection surfaces and to keep part references identifiable.
Applications of Copper Y Branch Fittings
Yijin reviews copper branch components for specified VRF and air conditioning piping projects. Equipment images are illustrative; the product photo shows the component family available for drawing review.
VRF Air Conditioning Networks
Branch junctions connect sections of an approved refrigerant piping layout serving multiple indoor units. Selection follows the equipment model, connected capacity and specified gas or liquid circuit.
Heat Pump Piping Assemblies
Drawing-specific branch components can be reviewed for compatible heat pump piping. Specify the operating modes, circuit requirements, mating tubes and installation envelope with the inquiry.
OEM Copper Tube Projects
Equipment manufacturers can submit branch geometry and connection-end details for component review, sampling and repeat production. The drawing and approved sample define the supplied part.
Custom Copper Y Branch Fittings for OEM Projects
For drawing-specific VRF branch components, Yijin reviews the fitting and its mating tube layout together. We use the agreed specification to support quotation, sample approval and repeat orders.
Port Dimensions & End Fit
Show actual connection diameters, wall section, insertion length and straight joining length for each port. Identify critical tolerances and any agreed mating-fit check.
Branch Geometry & Installation Space
Define branch angle, leg length, outlet direction and overall envelope. Include clearance for adjacent pipes, insulation, supports and access for joining.
Material & Inspection Requirements
State the copper grade, governing standard, tube condition and documents required. Agree visible-condition checks and any leak or pressure-test method, conditions and acceptance criteria.
Sample Approval & Batch Supply
Provide sample and repeat quantities separately. Link the approved sample to the drawing revision and confirm packing, traceability and any supplied insulation or accessories in the quotation.
Quality Control & Inspection
Inspection focuses on the dimensions and condition that control tube fit, branch location and joining. The purchase specification defines the sampling, required records and acceptance limits.
| Inspection Area | Agreed Checks |
|---|---|
| Port & End Dimensions | Connection diameter, end profile, insertion feature and straight joining length at each labeled port. |
| Branch Geometry | Branch angle, leg spacing, outlet position and the overall envelope against the approved datums. |
| Surface & Cleanliness | Visible forming defects, burrs, deformation, handling damage and specified internal-cleanliness requirements. |
| Assembly & Validation | Mating-fit review and any leak or pressure testing agreed for the component or completed assembly. |
Pressure and temperature requirements are reviewed for the specified material, geometry and joining arrangement. Required validation must be defined for the intended service.
Copper Y Branch Fittings Manufacturer – Yijin
Xinxiang Yijin Metal Products Co., Ltd. manufactures copper and aluminum refrigeration components in Xinxiang, Henan, China. Our range includes branch fittings, tees, return bends, U-shaped components and formed tube assemblies.
For copper Y branch fittings, we review the equipment and circuit reference alongside the drawing, material and connection requirements. The approved revision and sample define the manufacturing scope and inspection criteria for repeat production.
For associated tube routes and connections in the same assembly, see our formed copper tube assemblies and copper U-bend components. Send your complete component list so related parts can be reviewed together.
Copper Y Branch Fittings FAQs
What are copper Y branch fittings used for in VRF systems?
Copper Y branch fittings create a three-port junction in a variable refrigerant flow piping network. They connect a common pipe section with two branch paths. Their port dimensions and geometry must match the specified circuit, while the equipment manufacturer’s design rules determine branch selection, permitted installation and operating limits.
How do I choose the correct VRF branch fitting size?
Start with the exact equipment model and its approved piping selection. Identify the gas or liquid line, branch location, downstream connected capacity and required tube dimensions. Supply this information with a port-labeled drawing. Connection diameter alone does not establish that a branch fitting is suitable for a particular VRF system.
Can the same Y branch fitting serve both gas and liquid lines?
Gas and liquid branches must be selected separately to the system specification. Their pipe dimensions and required geometry can differ. Define each component and quantity individually on the drawing or bill of materials, even when they are purchased together. Supply as a matched set, including insulation, must be explicitly agreed.
Are Yijin copper Y fittings compatible with every VRF brand?
Compatibility is reviewed for the specific equipment and component specification. A similar external shape or matching tube diameter does not confirm interchangeability with an original branch kit. Provide the approved drawing, required interfaces and system documentation so the proposed component can be evaluated by the responsible equipment engineering team.
Can Yijin manufacture custom copper Y branch fittings?
Yes. Yijin reviews drawing-based copper Y branch fittings, including common-port and branch dimensions, branch angle, leg length and end details. Send the material designation, tube condition, critical tolerances and order quantities. Tooling, sample approval, inspection requirements and the final supplied scope are confirmed during technical review.
What are the pressure rating, MOQ and lead time?
These are confirmed for the agreed component and order. Pressure requirements depend on the material, wall section, geometry, joining process and specified validation. MOQ and lead time depend on quantities, tooling and sample needs. Include design conditions and your target delivery schedule with the RFQ for a specific quotation.
Request a Quote for Copper Y Branch Fittings
Send your copper Y branch fittings requirements to Yijin for a drawing-based manufacturing review. Include the system reference and supplied scope so the quotation addresses the right component, sample and batch requirements.
VRF Branch Fitting RFQ Checklist
- Equipment model and approved branch / piping reference
- Drawing number, revision, units and port identifiers
- Gas or liquid circuit and required connection dimensions
- Copper material specification and delivery condition
- Branch angle, leg lengths, end features and joining requirements
- Required documents, inspection and any additional testing
- Sample and batch quantities, packaging and target delivery
Specify whether the order covers individual bare fittings, a paired set or an assembly with accessories. Tooling, MOQ and lead time are confirmed after review.
Prepare your component details with our refrigeration fittings RFQ checklist.
