Annealed coil tube
First, coil stock can suit routes requiring field bends when the approved wall and bend radius permit them.
Explore pancake coils →Product overview
Copper VRV & VRF Tube for refrigerant piping
For variable refrigerant volume and variable refrigerant flow systems, S K Metal supplies copper tubing against the specified line size and equipment requirements.
In addition, buyers should identify whether each line serves liquid, suction or discharge duty where applicable. Tube OD, wall, temper, internal cleanliness and end sealing all matter. However, allowable sizes and pressure requirements vary by refrigerant and equipment model. Therefore, follow the equipment manufacturer's installation manual and approved project design.
See the refrigerant tube enquiry checklist
Types and configurations
Copper VRV & VRF Tube forms and line requirements
First, confirm the line schedule and installation route. Then select the approved tube form, size, wall thickness and end protection.
Straight refrigerant tube
In addition, straight lengths can serve runs where alignment, support spacing and specified temper are important.
Explore hard-drawn tube →Liquid line tubing
However, liquid line OD and wall must come from the equipment schedule rather than an assumed standard size.
Review sizing information →Gas line tubing
Moreover, gas or suction line dimensions must follow the designated equipment and refrigerant requirements.
Prepare a line schedule →Protected-end copper tube
Furthermore, sealed ends and suitable packaging help preserve the specified internal cleanliness before installation.
Discuss end protection →Project-specific VRF tubing
Finally, S K Metal can review multi-unit projects against an equipment schedule, drawings, quantity and delivery stages.
Send your piping schedule →Specification guide
How to specify Copper VRV & VRF Tube
Therefore, a complete line schedule helps prevent errors in OD, wall, refrigerant compatibility, cleanliness and installation requirements.
- Line designation
- First, list each liquid, gas, suction or discharge line as described in the equipment schedule.
- OD & wall
- Next, provide outside diameter, minimum specified wall thickness and dimensional tolerances for each line.
- Temper & form
- Also confirm annealed coil, straight length or another approved temper and package form.
- Material & standard
- Moreover, identify copper grade, applicable tube standard and equipment maker's requirements.
- Cleanliness & ends
- In addition, specify internal cleanliness, dry sealed ends, finish and protective packaging.
- System conditions
- Finally, provide refrigerant, design pressure, temperature, joining method and model reference.
- Quantity & delivery
- Therefore, include piece quantity, packaging, inspection, delivery city and required date.
Important: Do not choose refrigerant tubing by OD alone. Instead, ask the system designer to approve wall, material, temper, service pressure, routing and joining procedure against manufacturer instructions.
Applications
Applications of Copper VRV & VRF Tube
Because equipment and refrigerants differ, the correct tubing depends on the approved line schedule, joining method and operating conditions.
Multi-split air conditioning
For example, specified tube connects outdoor and indoor units through an approved refrigerant circuit.
Commercial VRF networks
Moreover, equipment schedules define the line sizes and permitted routing for multiple indoor units.
Liquid refrigerant lines
In addition, the approved liquid line size depends on the equipment model and circuit design.
Gas refrigerant lines
Furthermore, gas lines require the specified OD, wall, insulation and installation clearances.
Branch connections
However, compatible branch joints and tube sizes must follow the system maker's instructions.
Project installations
Therefore, repeat purchases should follow one approved drawing, material schedule and inspection plan.
Quality and documentation
Verify refrigerant tube quality and cleanliness
Before ordering, define the OD, wall, temper, length, end-sealing and cleanliness checks required for Copper VRV & VRF Tube. In addition, designers can review the Copper Tube Handbook for general information about copper tube and joining practices.
Discuss your material requirement →- OD, wall thickness and tolerance verification
- Temper, length and coil-form checks
- Internal cleanliness and sealed-end review
- Material and inspection documents when quoted
- Protective packaging and size identification
Ordering checklist
How to order Copper VRV & VRF Tube
For an accurate quotation, send the equipment line schedule with the required dimensions, supply form, standard and delivery details.
Identify the system
First, state the equipment brand, model, refrigerant and applicable piping specification.
List every line size
Next, provide OD, wall, tolerance, line role and required length for each circuit.
Choose the tube form
Then list temper, straight or coil form, internal cleanliness and end-sealing requirements.
Confirm installation details
In addition, state pressure requirements, joining method, insulation and branch references.
Confirm quantity and delivery
Finally, include lengths or coils, packaging, destination, schedule and documentation.
Frequently asked questions
Copper VRV & VRF Tube FAQs
What is Copper VRV & VRF Tube used for?
In general, it forms refrigerant lines between compatible indoor, outdoor and branch components in approved variable refrigerant systems.
Which dimensions are required for a quotation?
In addition, provide OD, wall, temper, line designation, length or coil form and quantity for every line.
Can I use any copper tube with a VRF system?
No. The tube must meet the equipment maker's dimensional, material, cleanliness and pressure requirements. Therefore, submit the approved specification.
Should installers seal tube ends?
Some projects require end protection to preserve internal cleanliness. Consequently, state the sealing and packaging requirements before quotation.
How are VRV and VRF lines joined?
The approved joining method depends on the equipment and piping specification. Therefore, installers should follow the system maker's instructions and qualified procedures.
Can inspection documents be requested?
Yes, subject to availability by order. Finally, list material, dimensional, cleanliness and traceability documents when requesting a quote.
Request a quotation
Send your VRV or VRF tube schedule
To begin, include equipment model, refrigerant, each line's OD and wall, tube form, cleanliness, quantity and delivery location. Afterward, S K Metal will review the enquiry.
Send your requirement