DN40 Stainless Steel Corrugated Tube for Refrigeration Systems
The DN40 Stainless Steel Corrugated Tube is designed for effective heat transfer and stable fluid circulation in industrial cooling equipment. Its corrugated design increases the contact surface area, helping improve thermal exchange efficiency in condensers, evaporators, and cooling pipelines where consistent temperature control is required.
Made from durable stainless steel, the tube provides strong mechanical performance, corrosion resistance, and reliable operation in low-temperature and high-humidity environments. It is commonly applied in refrigeration systems, chemical processing equipment, food production lines, and pharmaceutical machinery that require dependable cooling performance.
We supply DN40 stainless steel corrugated tubes with optional sizes, materials, and connection types to suit different installation structures and working conditions.
Product Introduction
Product Parameters
All parameters can be customized according to equipment requirements.
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Item |
Specification |
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Product Name |
DN40 Stainless Steel Corrugated Tube |
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Product Type |
Refrigeration Systems Cooling Tube |
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Nominal Diameter |
DN40 |
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Material |
304 / 316 / 316L Stainless Steel |
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Structure Type |
Corrugated / Helical / Spiral optional |
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Outer Diameter |
≈ 48 mm (customizable) |
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Wall Thickness |
0.5 – 1.5 mm (customizable) |
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Length |
Custom length available |
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Working Pressure |
Depends on material and thickness |
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Temperature Range |
-196°C to 400°C |
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Connection Type |
Welding / Flange / Thread / Customized |
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Surface Treatment |
Annealed / Pickled / Polished |
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Application Fields |
Refrigeration / Chemical / Food / Pharmaceutical |
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Custom Service |
Supported |
Product Features
The corrugated design increases the outer surface area of the pipe and creates stronger turbulence inside the flow channel, which helps improve heat exchange efficiency during operation. Because of this structure, the DN40 stainless steel corrugated tube performs more effectively than smooth pipes in cooling circulation systems. It is suitable for use in condensers, evaporators, and medium-flow circulation lines where stable thermal performance is required in continuous refrigeration equipment.
The reinforced corrugated wall improves the overall mechanical strength of the tube, allowing it to operate safely under relatively high working pressure. This structure helps maintain stable performance in refrigeration units and industrial cooling pipelines where both durability and reliability are necessary for long-term use.
Manufactured from high-quality stainless steel such as 304 or 316/316L, the tube can be used in low-temperature, high-humidity, or chemically exposed environments without affecting performance. It is suitable for cooling systems installed in chemical processing equipment, food production lines, and pharmaceutical machinery where corrosion resistance is required.
Compared with rigid straight pipes, the corrugated tube allows easier installation in equipment with limited space or complex layouts. The pipe can be adjusted within a certain range during installation, which helps simplify pipeline routing in refrigeration and cooling systems.
With precise forming technology and strict material control, the tube maintains consistent performance during long-term operation. It is designed for refrigeration, chemical, food, and pharmaceutical cooling systems that require continuous and reliable temperature control.
Application Fields
The DN40 stainless steel corrugated tube is commonly used in condensers, evaporators, and refrigerant circulation pipelines where consistent heat exchange performance is required. In industrial refrigeration units, cold storage installations, and commercial cooling systems, it supports stable temperature control during long-term operation.
In chemical processing environments, cooling and heat exchange lines must tolerate corrosion, pressure fluctuations, and varying temperatures. This type of corrugated tube offers dependable mechanical strength and corrosion resistance, making it suitable for reactors, condensers, and circulating cooling systems used in chemical plants.
For food and beverage production, cooling pipelines must remain clean, durable, and resistant to contamination. Stainless steel corrugated tubing is often installed in dairy processing equipment, beverage production lines, freezing units, and food storage systems where hygienic materials are required.
Pharmaceutical manufacturing also requires reliable cooling and temperature regulation. The DN40 corrugated tube can be applied in cooling circulation systems, low-temperature pipelines, and heat exchange equipment used in controlled production environments.
In addition, the tube is suitable for general industrial cooling units, compressors, liquid circulation systems, and various heat exchangers that require steady flow performance, structural strength, and long service life.
Customized Purchasing Advice
Confirm Actual Working Conditions
Before ordering the stainless steel corrugated tube, it is necessary to confirm the real operating conditions, including temperature range, working pressure, and fluid medium. Different refrigeration, chemical, food, and pharmaceutical systems have different requirements for strength and corrosion resistance, especially when the pipe is used as a cooling tube in refrigeration systems in condensers, heat exchangers, or cooling circulation equipment.
Provide Accurate Size Parameters
To ensure proper manufacturing, customers should provide detailed technical data such as outer diameter, wall thickness, total length, connection type, and installation space. Correct dimensions are important for the corrugated tube to achieve stable performance in condensers, storage tanks, and industrial cooling pipelines.
Select the Appropriate Material Grade
We supply stainless steel materials including 304, 316, and 316L to meet different corrosion resistance and temperature requirements. Choosing the correct material ensures long service life when the cooling tube is used in refrigerant systems, chemical media, or food-grade production environments.
Choose Suitable Connection Method
According to equipment design, different connection types can be selected, such as welded ends, threaded connections, or flange connections. Proper connection design helps reduce leakage risk and ensures reliable installation in refrigeration units, reactors, and heat exchange systems.
Support Custom Design and Production
We provide full customization based on drawings or technical requirements, including diameter, length, corrugation type, pressure grade, and coil structure. The DN40 Stainless Steel Corrugated Tube can be specially manufactured for compact cooling modules, condensers, or energy-efficient refrigeration systems that require optimized layout and high heat transfer efficiency.
Technical Support for Multiple Industries
With experience in refrigeration, chemical processing, food machinery, and pharmaceutical equipment, we can recommend suitable specifications for each application. Our Refrigeration Systems Cooling Tube solutions are designed to ensure stable operation, safe performance, and long service life in different industrial environments.
Specification Selection Guide
Confirm Actual Working Conditions
Before placing an order for the stainless steel corrugated tube, the real operating conditions should be clearly defined, including temperature range, working pressure, and the type of fluid used in the system. Equipment used in refrigeration, chemical processing, food production, or pharmaceutical applications may operate under different loads and environmental conditions. When the tube is installed in condensers, heat exchangers, or cooling circulation pipelines as a cooling tube for refrigeration systems, confirming these parameters helps ensure the pipe strength and corrosion resistance meet the actual service requirements.
Provide Accurate Size Parameters
For proper manufacturing, detailed technical information should be supplied, such as outer diameter, wall thickness, overall length, connection form, and available installation space. Accurate dimensions allow the corrugated tube to fit correctly in condensers, storage tanks, and industrial cooling lines, helping the system maintain steady flow and consistent heat exchange during operation.
Select the Appropriate Material Grade
Different working environments require different stainless steel materials. We offer 304, 316, and 316L grades to match various temperature ranges and corrosion conditions. Selecting the proper material helps the cooling tube maintain durability when used in refrigerant circulation, chemical media transfer, or food-grade processing equipment.
Choose a Suitable Connection Method
Connection type should be selected according to the equipment design and installation method. Welded ends, threaded joints, and flange connections are commonly used in refrigeration units, reactors, and heat exchange systems. A suitable connection structure helps reduce leakage risk and supports stable long-term operation.
Support Custom Design and Production
Production can be arranged according to drawings or technical specifications, including diameter, length, corrugation pattern, pressure rating, and coil configuration. The corrugated tube can be manufactured for compact cooling modules, condensers, or energy-efficient refrigeration systems that require flexible layout and reliable heat transfer performance.
Technical Support for Multiple Industries
With application experience in refrigeration, chemical equipment, food machinery, and pharmaceutical systems, suitable specifications can be recommended for different operating conditions. The Refrigeration Systems Cooling Tube is designed to provide stable performance, safe operation, and long service life in a wide range of industrial environments.
FAQ
Q: What is a stainless steel corrugated tube used for?
A: The DN40 stainless steel corrugated tube is designed for heat transfer, cooling circulation, and fluid transport in refrigeration units, condensers, heat exchangers, and various industrial cooling systems. The corrugated surface increases the effective heat exchange area and allows more efficient thermal transfer compared with ordinary smooth pipes.
Q: Why use corrugated tubes instead of smooth tubes in refrigeration systems?
A: The corrugated design creates turbulence inside the flowing liquid, which improves heat exchange performance and helps reduce deposits on the inner wall. In addition, the flexible structure can absorb vibration and thermal expansion, making the tube suitable for condensers, evaporators, and cooling pipelines that operate under changing temperatures.
Q: What materials are available for refrigeration cooling tubes?
A: Cooling tubes are commonly manufactured from 304, 316, and 316L stainless steel.
Grade 304 is suitable for general refrigeration and cooling circulation equipment.
Grades 316 and 316L provide higher corrosion resistance and are often selected for chemical processing, food production, and pharmaceutical applications where stricter material requirements are necessary.
Q: Can the DN40 corrugated tube be customized?
A: Yes, the tube can be produced according to different technical requirements. Custom options include pipe diameter, wall thickness, length, pressure rating, corrugation shape, and connection type. These adjustments allow the tube to match the installation conditions of refrigeration equipment, heat exchangers, and industrial cooling systems.
Q: What industries use stainless steel corrugated cooling tubes?
A: Stainless steel corrugated tubes are used in many types of equipment, including:
Refrigeration and cold storage installations
Chemical processing machinery
Food and beverage production lines
Pharmaceutical equipment
Condensers and heat exchangers
Industrial cooling circulation units
They are suitable wherever heat needs to be transferred between fluids without direct contact.
Q: How to choose the correct pipe size for a refrigeration system?
A: Pipe size should be determined according to the required flow rate, cooling capacity, and working pressure of the system. Equipment with large cooling load or high circulation volume normally requires larger diameter tubes to maintain stable operation and proper heat exchange efficiency.
Q: What connection types are available for corrugated tubes?
A: Common connection methods include welded ends, flange connections, threaded joints, and specially designed fittings. Selecting the proper connection type helps ensure secure installation and prevents leakage in condensers, cooling pipelines, and circulation systems.
Q: Can corrugated tubes withstand high pressure and low temperature?
A: Stainless steel corrugated tubes are suitable for conditions involving high pressure, low temperature, and frequent temperature changes. The material strength and flexible structure allow reliable performance in refrigeration, chemical, and industrial cooling environments.
Q: Are corrugated tubes suitable for food and pharmaceutical equipment?
A: Yes. Stainless steel provides good corrosion resistance, smooth surface quality, and long service life, making the tubes appropriate for hygienic cooling and heat exchange systems used in food processing and pharmaceutical production.
Q: Do you provide OEM or custom manufacturing service?
A: Custom manufacturing is available based on drawings or technical specifications. Production can be arranged according to required material grade, pipe size, pressure level, coil design, and connection style to meet the needs of different refrigeration and heat exchange equipment.
Contact Us
If you are interested in our products or need more information about specifications, price, or customization, please feel free to contact us.
We provide stable supply, professional technical support, and reliable export service for global customers.
China Super Tech Co., ltd.
Email: sales@316liquidcooling.com
Address: Beijing, China
We support bulk orders, customized production, and long-term cooperation.
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