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

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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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
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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

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ISO 9001:2015

Quality Management System

🌿

ISO 14001:2015

Environmental Management System

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ISO 45001:2018

Occupational Health & Safety

Full Material Range

6 Material Systems Covering All Industrial Heat Transfer Needs

Copper

Best thermal conductivity

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Cupronickel

Seawater resistant

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Aluminum Brass

Biofouling resistant

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Naval Brass

High strength

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Stainless Steel

Corrosion resistant

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Carbon Steel

Cost-effective

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Latest News & Updates

Stay Informed About Kenergy and the Industry

Frequently Asked Questions

Quick Answers to Your Technical Questions

Q: What is the cost difference between smooth tubes and internally grooved tubes?
Smooth tubes are typically 10-20% cheaper than internally grooved tubes of the same diameter and wall thickness. For applications with moderate heat transfer requirements, smooth tubes provide a more economical solution without compromising system performance. For high-efficiency applications, we recommend evaluating the overall system cost-effectiveness, as internally grooved tubes can reduce the size and material usage of heat exchangers.
Q: How can coil packaging be prevented from deforming during transportation?
Our coil products are wound on sturdy steel spools with proper tension control to maintain coil integrity. Each coil is secured with multiple circumferential straps and wrapped with moisture-proof polyethylene film and woven fabric. The spool design supports the coil weight and prevents deformation during handling and transportation. For large coils, we use wooden frames or pallets to provide additional protection.
Q: What is your residual carbon control standard for smooth tubes?
Our internal wall residual carbon content is controlled at ≤0.02 g/m², which meets industry standard requirements for AC applications. This low residual level prevents capillary tube blockage and ensures long-term system reliability. For applications requiring stricter control, we offer enhanced cleaning processes upon request, achieving ≤0.01 g/m².
Q: Can you manufacture non-standard outer diameters?
Yes, we offer customized non-standard outer diameters to meet specific application requirements. Custom sizes may require specialized tooling and are subject to minimum order quantities. Please provide your desired diameter, wall thickness, and tolerance requirements to our engineering team, and we will evaluate feasibility and provide a quotation. Typical lead time for custom sizes is 3-4 weeks.

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Contact our technical team for product selection support and competitive pricing