Goldfly is an integrated supplier specializing in the research, development, production, and sales of condensers and evaporators. Our core products encompass heat exchangers, condensers, evaporator coils, ceiling coolers, and all-in-one refrigeration units, which are primarily utilized in refrigerators, chillers, vending machines, and air conditioning systems.
Professional Team
Our team comprises seasoned professionals dedicated to providing comprehensive services to customers. Leveraging our expertise, we aim to address customer challenges effectively and offer tailored solutions.
OEM/ODM Services
We offer customized OEM and ODM services, with our professional technical team delivering a wide range of solutions based on specific customer requirements.
Production Equipment
Equipped with state-of-the-art automated production facilities for heat exchangers, including automatic welding machines, automatic punching machines, detection lines, and type laboratories, we ensure high-quality manufacturing processes.
Sales Market
Apart from supplying major refrigerator manufacturers in China, our products are exported to more than 30 countries across the Americas, Europe, the Middle East, and Asia, establishing a robust global presence.
Specification of Heat Exchanger
|
Tube Size |
Tube Material |
Fins Spacing |
End Plate Material |
|
·3/11"(7.00mm) |
Copper |
1.8mm |
Galvanized Sheet |
|
·3/8"(9.52mm) |
Carbon Steel |
2.0mm |
Aluminum |
|
·1/2"(12.00mm) |
Aluminum |
3.0mm |
Stainless Steel |
|
·5/8"(15.88mm) |
|
>3.0mm |
|
Types of Heat Exchanger
The heat exchangers produced by our company mainly include the following types
Evaporator
An evaporator is a type of heat exchanger device that facilitates evaporation by utilizing conductive and convective heat transfer, which provides the necessary thermal energy for phase transition from liquid to vapour. Within evaporators, a circulating liquid is exposed to an atmospheric or reduced pressure environment causing it to boil at a lower temperature compared to normal atmospheric boiling.

Condenser
Condenser is a heat exchanger used to condense a gaseous substance into a liquid state through cooling. In doing so, the latent heat is released by the substance and transferred to the surrounding environment. Condensers are used for efficient heat rejection in many industrial systems. Condensers can be made according to numerous designs and come in many sizes ranging from rather small (hand-held) to very large (industrial-scale units used in plant processes).

Applications of Heat Exchanger
Power plants
In power plants, for example, heat exchanger are used to transfer heat from the hot exhaust gas to a fluid medium (usually water), which then becomes steam and is used to drive turbines.
HVAC systems
The heat exchangers transfer heat from the indoor air to the outdoor air or vice versa, ensuring a comfortable indoor temperature.
Chemical plants
Indeed, chemical plants employ heat exchanger to regulate the temperature of chemical reactions, requiring precise temperature control.
Other industries
The use of heat-exchanger extends to many other sectors. The food and beverage industry employs them for pasteurizing milk and juice, the oil and gas industry uses them to cool and condense hydrocarbon fluids, and the automotive industry relies on them to cool engine coolant and oil.

The heat exchanger should undergo a water pressure test at 1.5 times the maximum working pressure. The steam pressure of steam should not be less than the steam pressure of 0.3MPa, and the hot water part should not be less than 0.4MPa. Maintain the pressure for 10 minutes under test pressure.
The heat exchanger should have smoke exhaust space, that is, the distance between its head and the wall or roof should not be less than the length of the heat exchanger, and the width of the operating passage of the equipment should not be less than 0.8 meters.
The installation height of various valves and instruments should be easy to operate and observe.
The vertical distance from the top of the heat exchanger (usually the safety valve) to the lowest point of the building structure should meet the requirements of installation testing and should not be less than 0.200 meters.
The Precautions For Heat Exchanger Operation
● When using on a new process pipeline, please pay attention to eliminate debris in the pipeline to avoid clogging the heat exchanger.
● If sewage is used as a cooling medium, or the waste heat of the sewage is recovered, or the medium contains granular solids, a filter or decontamination device should be installed at the inlet end of the plate to avoid clogging the heat exchanger.
● When the temperature of the cooling water (heated) exceeds 40°C, it should be softened as much as possible to avoid fouling of the heat exchanger and affect the heat transfer effect.
● Please check whether the pipeline connection is correct to avoid mixing of the two media, which may cause undesirable consequences.
● Strictly check whether the inlet valves of the cold and hot media are closed and the outlet valves are open before starting the equipment.
● The heat exchanger first starts the pumps of cold and heat medium, slowly opens the inlet valve of the cold medium, and then opens the inlet valve of the heat medium, so that the medium flows into the heat exchanger slowly. This is to avoid excessive temperature.
● Slowly heat up the heat exchanger to determine and calculate whether the process requirements are met. Normal operation can only be entered after the requirements are met.
Key Steps in Customizing Heat Exchangers
Design: Engineers work closely with the client to understand their specific requirements and create a detailed design that addresses the application's unique challenges.
Material Selection: Based on the design parameters, suitable materials are chosen to ensure compatibility with the operating conditions and fluids involved.
Fabrication: Skilled technicians and engineers construct the heat exchanger, incorporating features such as finned tubes, baffles, and flow channels, as needed.
Testing and Quality Control: Rigorous testing is conducted to ensure that the custom heat exchanger meets the specified performance standards and safety requirements.
Installation and Commissioning: The custom heat exchanger is installed in the intended system, and its performance is optimized for efficient heat transfer.
Packaging and Shipping
|
Packaging |
Plastic film wrapping, wooden box outer packaging |
|
Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Factory
Goldfly is a Heat Exchange equipment manufacture(also known as KINGYES in China) for Refrigerator, Chiller, Vending Machine and Air Conditioning with many years of experience in customization. Located in Binzhou and near Qingdao Port, make us have quick response and shipments. Our workshop covers an area of 20,000 square meters with many first-class professional equipment and technical engineers. The condensers and evaporators produced are of single-air, double-air, and triple-air models.
Our Honor





We're professional heat exchanger manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale bulk heat exchanger in stock here from our factory.
Low Temp Condensing Unit, , Ice Cream Cabinet Condenser




