Description
What is hydraulic tube expander for for Radiators
The radiator tube expander is a device specifically designed for hydraulic expansion of radiator tubes. It uses a pneumatic liquid pump to pressurize the radiator tubes, increasing their diameter (generally 0.3-0.4mm larger than the original diameter). This creates an interference fit between the radiator tubes and the heat sink fins, achieving a tight connection, rather than the traditional welding process.
Technical Parameters：
Expansion Pressure: 0-150 MPa (adjustable)
Working Medium: Clean water
Power Supply: 220 Volts
Drive: Compressed air 5-8 kg
Water Source: Purified water
Control Method: PLC/Digital display/Computer control
Pressure Control Accuracy: 2% FS
Number of Workstations: 1-2
Expansion Speed: 4-8 times/min
Minimum Expansion Hole Diameter: >10 mm
hydraulic tube expander for for Radiators Working Principle：
The pneumatic-hydraulic tube expansion machine is specifically designed for finned tube heat exchangers and is suitable for radiators, condensers, evaporators, intercoolers, and other equipment. Its core principle is to eliminate the gaps between the tubes, tube sheets, and fins through integrated expansion, creating a tight interference fit and preventing loosening.
The equipment is compatible with tubes made of stainless steel, copper, aluminum, and other materials, and can handle tubes of any length and shape, securely fixing them to the tube sheet and fins. The tube deformation after expansion is controlled within 0.3-1.2 millimeters, resulting in a reliable and durable connection.
Product Features:
Adjustable Pressure-Holding Value: Allows precise control over pressure to ensure high-quality expansion.
Customizable Pressure-Holding Time: The duration of pressure-holding can be set to optimize expansion quality.
Fast Pressurization and Pressure Release: Quick pressurizing and pressure-releasing significantly improve the expansion speed.
Application:
1.Pneumatic Hydraulic Tube Expander: Designed for finned tube heat exchangers, such as condensers and radiators.
2.Electric Hydraulic Tube Expander: Suitable for shell-and-tube heat exchangers, including boilers, large condensers, or high-pressure heaters.
You should choose the appropriate hydraulic tube expander based on the type of equipment you need to expand the tubes for. If you’re unsure which one to select, please feel free to contact our high-pressure experts for assistance.
