This case study focuses on an industrial refrigeration system upgrade for a food processing company in Ho Chi Minh City. The project aimed to modernize an aging cold storage facility that was suffering from frequent system failures, low cooling efficiency, and high maintenance costs.
To address these issues, the client decided to replace the existing aluminum piping system with ASTM B280 ACR copper tubing, ensuring improved performance, reliability, and long-term cost savings.
Project Background
Project Name: Industrial Cold Storage System Upgrade
Location: Ho Chi Minh City
Client Type: Food Processing Company
Application: Refrigeration piping for cold storage (-18°C to 5°C zones)
Project Type: Industrial refrigeration system retrofit
Material Requirements
| Parameter | Specification |
|---|---|
| Standard | ASTM B280 |
| Sizes | 5/8", 3/4", 1-1/8" |
| Form | Coil |
| Material Type | ACR Copper Tubing |
| Temper | Soft Annealed |
| Quantity | 40 Tons |
Customer Pain Points (System Failure Analysis)
The client's existing refrigeration system was built using aluminum piping, which led to multiple operational challenges over time.
1. Frequent Leakage in Aluminum Piping
The most critical issue was recurrent refrigerant leakage.
Root Causes:
Weak joint strength in aluminum connections
Susceptibility to vibration fatigue
Oxidation at connection points
Impact:
Loss of refrigerant
Reduced cooling performance
Frequent system shutdowns
The factory reported leakage incidents every 2–3 months, requiring urgent repairs.
2. Low Heat Transfer Efficiency
Compared to copper, aluminum has lower thermal conductivity in practical system conditions due to:
Surface oxidation
Poor internal smoothness
Inefficient heat exchange
Result:
Slower cooling cycles
Increased energy consumption
Inconsistent storage temperature
This was critical for food safety, especially in frozen storage zones.
3. High Maintenance Cost
Due to repeated failures:
Frequent technician visits
Replacement of damaged sections
System downtime losses
Financial Impact:
Increased operational cost
Reduced production efficiency
Risk of product spoilage
4. System Downtime & Production Risk
Unplanned downtime caused:
Interrupted cold chain
Delayed shipments
Risk of non-compliance with food safety standards
Our Solution: ACR Copper Tubing Upgrade System
After a full technical assessment, we recommended a complete transition from aluminum piping to ASTM B280 ACR copper tubing, optimized for industrial refrigeration applications.
1. Replacement with High-Quality ACR Copper Tubing
We supplied ACR (Air Conditioning & Refrigeration) copper tubes with:
उत्कृष्ट thermal conductivity
High corrosion resistance
उत्कृष्ट joint strength
Key Advantage:
Copper provides ~60% higher thermal conductivity than aluminum, significantly improving system efficiency.
2. Precision OD Tolerance (±0.02 mm)
One of the key improvements was our ultra-precise dimensional control.
Technical Details:
Outer Diameter tolerance: ±0.02 mm
Uniform wall thickness
Smooth internal surface
Benefits:
Perfect fitting with connectors
Reduced installation errors
Leak-proof connections
3. Soft Annealed Coil Design
We provided soft annealed coils, enabling:
Easy bending during installation
Reduced need for fittings
Faster on-site work
4. Clean Inner Surface for Refrigeration Systems
All tubes were:
Degreased and cleaned
Nitrogen protected
Sealed to prevent contamination
Result:
Smooth refrigerant flow
Improved system efficiency
Reduced risk of blockage
5. Enhanced Joint Reliability
Copper tubes allowed:
Strong brazed joints
Better vibration resistance
Long-term sealing performance
Implementation Process
Step 1: System Evaluation
We worked with the client to:
Analyze leakage points
Identify inefficient pipeline sections
Recommend optimal pipe sizes
Step 2: Sample Testing
The client tested:
Heat transfer performance
Pressure resistance
Installation compatibility
Results showed significant improvement over aluminum piping.
Step 3: Gradual Replacement Strategy
To minimize downtime:
Replacement was done in phases
Critical sections upgraded first
System remained partially operational
Step 4: Full Deployment (40 Tons)
We supplied 40 tons of copper tubing:
Delivered on schedule
Consistent quality across batches
Full technical documentation provided
Project Results (Measured Performance)
1. Cooling Efficiency Increased by 18%
After system upgrade:
Faster temperature pull-down
More stable cooling performance
Reduced compressor workload
2. Significant Reduction in Leakage
No major leakage incidents reported
Improved joint integrity
Stable system pressure
3. Maintenance Cost Reduced
Fewer repairs required
Lower labor cost
Reduced spare parts consumption
4. System Downtime Minimized
Continuous operation achieved
Improved production stability
Reduced risk of product loss
5. Improved Food Safety Compliance
Stable temperature control ensured:
Better product quality
Compliance with cold chain standards
Increased customer trust
Copper vs Aluminum in Refrigeration Systems
Why Copper Outperforms Aluminum:
| Property | Copper | Aluminum |
|---|---|---|
| Thermal Conductivity | High | Medium |
| Corrosion Resistance | Excellent | Moderate |
| Joint Strength | Strong (brazing) | Weak |
| Leak Risk | Low | High |
| Lifespan | Long | Shorter |
Why Copper is Ideal for Vietnam's Climate
In Vietnam:
High humidity accelerates corrosion
Temperature fluctuations stress materials
Copper offers:
Excellent corrosion resistance
Stable performance in humid environments
Long service life
Key Takeaways for Food Processing Companies
When upgrading refrigeration systems:
✔ Avoid Low-Quality Aluminum Piping
It leads to frequent leakage and inefficiency.
✔ Choose ACR Copper Tubing
Ensures reliability and performance.
✔ Focus on Dimensional Precision
Tight tolerances reduce installation issues.
✔ Plan Phased Upgrades
Minimize downtime during replacement.
Global Supply Capability
We support industrial refrigeration projects worldwide:
ASTM B280 copper tubes
EN 12735 copper pipes
Custom coil and straight length options
OEM branding
Export Markets
Southeast Asia
Middle East
North America
South America
FAQ
Q1: Why replace aluminum pipes with copper in refrigeration systems?
Copper offers better heat transfer, stronger joints, and lower leakage risk.
Q2: What is ACR copper tubing?
It is copper tubing specifically designed for air conditioning and refrigeration systems with high cleanliness standards.
Q3: What tolerance is required for refrigeration copper pipes?
High-precision systems typically require tight tolerances like ±0.02 mm.
Q4: Does copper reduce maintenance costs?
Yes, due to fewer leaks and longer lifespan.
Q5: Can you supply coils for industrial systems?
Yes, we provide customized coil sizes for various applications.
Contact Us
Looking for a reliable copper tube supplier for your cold storage or refrigeration project?
High-purity ACR copper tubing
Strict quality control
Fast delivery
Technical support
👉 Contact us now for samples and quotations.
+8615769214734
office@dongmjd.com
