28 years of excellence in manufacturing, specializing in the heat exchange tube sector.

28+ YEARS EXPERIENCE
20K+ TONS ANNUAL CAPACITY
50+ COUNTRIES SERVED
200+ ENTERPRISE CLIENTS

Our Products

Select by Application - Find the Perfect Heat Exchange Tubes for Your Industry

test Smooth Copper Tubes / Coils for AC

Inner-grooved copper tubes are the core heat transfer components of condensers and evaporators in residential and commercial air conditioning systems. Through precise coil forming, spiral grooves are created on the inner wall.

Learn More

Smooth Copper Tubes / Coils for AC

Provide high-precision smooth tubes and coils for air conditioning, with uniform wall thickness and clean surfaces. Suitable for air conditioning connecting pipes, condensers, and evaporators. Available in custom lengths according to customer requirements.

Learn More

Internal thread copper tube for air conditioner

Inner-grooved copper tubes are the core heat transfer components of condensers and evaporators in residential and commercial air conditioning systems. Through precise coil forming, spiral grooves are created on the inner wall.

Learn More

Heat exchange tube for dry evaporator

Dry-type evaporator dedicated internally threaded straight tube (dry evaporation tube), with refrigerant flowing inside the tube and water flowing outside the tube. Suitable for heat pumps, chillers, and air dryers, with a variety of internal thread tooth profiles available.

Learn More

Heat exchange tube for heat pump

Heat exchange tube specially designed for air source heat pumps, with stable heat exchange efficiency in low-temperature environments. Compatible with R134a/R410A/R32 refrigerants, supporting optimized design for defrosting conditions.

Learn More

Heat exchange tubes for condensing units

Provide specialized heat exchange tubes for small refrigeration condensing units, suitable for supermarket freezers, display cabinets, ice machines, and other equipment. Compact design, high heat exchange efficiency.

Learn More

Heat exchange tubes for flooded evaporators

Enhanced boiling heat transfer tubes specially designed for flooded evaporators, TE/LE/LF series. Porous/rolled wire surface structure to improve boiling heat transfer coefficient. Used in central air conditioning and industrial chillers.

Learn More

Heat exchange tubes for shell-and-tube condensers

TC series high-efficiency condenser tubes specially designed for shell-and-tube condensers, with external fin structure to promote film condensation. Heat exchange efficiency is improved by over 50%, suitable for large chillers and heat pumps.

Learn More

Heat exchange tubes for falling film evaporators

Heat exchange tubes specially designed for falling film evaporators, with optimized surface structure to ensure uniform liquid film distribution. Suitable for applications such as central air conditioning, seawater desalination, and food concentration.

Learn More

Why Choose Kenergy?

Your Strategic Partner for Heat Exchange Tube Solutions

Direct Factory

Own production base with full control from raw material to finished product. No middlemen for better cost and delivery.

Full Supply Chain

From copper strip rolling to precision forming, heat treatment, and inspection—complete self-production ensures quality.

28 Years Experience

Deep expertise in heat exchange tubes. Trusted by leading HVAC, refrigeration, and heat exchanger companies worldwide.

One-Stop Solution

Copper, cupronickel, stainless steel, carbon steel and more. All your HVAC, refrigeration, and industrial needs in one place.

Kenergy Factory
28 Years of Excellence

Shell - Your Expert in High Efficiency Heat Exchange Tubes

Kenergy is a high-tech enterprise specialized in R&D, production and sales of high-efficiency heat exchange tubes. With headquarters and a modern production base, we serve clients across HVAC & refrigeration, industrial heat transfer, desalination, food & pharmaceutical, and marine condensation industries.

We adhere to "Quality First, Customer Oriented" and strive to become the world's leading heat exchange tube solution provider.

ISO9001 Certified
Custom Solutions
Global Shipping
Technical Support
Learn More About Us

Advanced Equipment & Quality Control

Ensuring Excellence in Every Meter of Heat Exchange Tube

Production Equipment

  • Precision Roll Forming Machines
  • Automatic Straightening & Cutting Systems
  • Automatic Air Tightness Testers
  • Panoramic Tooth Profile Measuring Instruments

Quality Testing Equipment

  • Direct Reading Spectrometers
  • Nondestructive Eddy Current Testers
  • Metallographic Microscopes
  • Vickers Hardness Testers
  • Universal Testing Machines

Certifications & Quality Assurance

International Standards That Guarantee Excellence

📋

ISO 9001:2015

Quality Management System

🌿

ISO 14001:2015

Environmental Management System

🛡️

ISO 45001:2018

Occupational Health & Safety

Full Material Range

6 Material Systems Covering All Industrial Heat Transfer Needs

Copper

Best thermal conductivity

Learn More →

Cupronickel

Seawater resistant

Learn More →

Aluminum Brass

Biofouling resistant

Learn More →

Naval Brass

High strength

Learn More →

Stainless Steel

Corrosion resistant

Learn More →

Carbon Steel

Cost-effective

Learn More →

Latest News & Updates

Stay Informed About Kenergy and the Industry

Frequently Asked Questions

Quick Answers to Your Technical Questions

Q: How much more expensive are internally grooved tubes compared to smooth tubes? Is it cost-effective?
Internally grooved tubes are typically 10-20% more expensive than smooth tubes of the same diameter and wall thickness. However, because they provide 30-50% higher heat transfer efficiency, you can use fewer tubes or a smaller heat exchanger to achieve the same thermal performance, potentially reducing overall system costs. The return on investment is particularly attractive for high EER and inverter AC products.
Q: What special groove requirements does R32 refrigerant have?
R32 operates at higher pressures than R410A and R22. For R32 applications, we recommend optimized groove designs with slightly increased fin height and modified helix angles to enhance heat transfer while maintaining mechanical strength under high pressure. Kenergy has developed specific R32-optimized tube designs, verified through extensive testing.
Q: Can internally grooved tubes be used for CO₂ transcritical cycles?
Yes, with specific design considerations. CO₂ transcritical systems operate at extremely high pressures (up to 130 bar). We offer enhanced internally grooved tube designs for CO₂ applications, with thicker walls and groove geometries. These tubes are made from high-strength copper alloys to ensure safe and reliable operation under transcritical conditions.
Q: What is the minimum order quantity (MOQ)?
For standard sizes and groove patterns, our minimum order quantity is typically 500 kg per specification. For custom groove designs or non-standard diameters, the MOQ is 1000 kg. Sample quantities (under 50 kg) are available for qualification testing and prototype development. Please contact our sales team with your specific requirements for detailed MOQ information.

Ready to Get Started?

Contact our technical team for product selection support and competitive pricing