CALGAVIN's "hiTRAN" heat transfer enhancement element - Improving the performance of the tube-type heat exchanger, reducing fouling inside the tubes, and decreasing energy requirements.

Increase and improve the capacity of heat exchangers, reduce fouling inside the tubes! A group of experts dedicated to solving various issues related to heat exchangers. Support from Japanese professionals who are well-versed in processes and heat exchangers!

◇ What is "hiTRAN"? 1. Wire elements intricately woven are inserted into the tubes of the heat exchanger. 2. Various wire materials such as SUS and copper can be used. 3. Compatible diameters: φ6 to φ150mm. 4. Applicable to both "existing" and "new" heat exchangers. 5. Appropriate shapes and densities are selected according to specification conditions. ◇ What are the benefits of "hiTRAN"? 1. Miniaturization of new heat exchangers (e.g., from 4 to 1 pass) ⇒ Reduction in initial costs! 2. Recovery of capacity in existing heat exchangers ⇒ Reduction in running costs! 3. Prevention and reduction of dirt inside the heat exchanger tubes ⇒ Reduction in maintenance costs and shutdown time! 4. Improvement of plant operational capacity ⇒ Reduction in utility costs!

• Other machine elements

By inserting "hiTRAN" into the tubular heat exchanger, we can reduce fouling inside the tubes and achieve long-term operation!

The CALGAVIN-produced "hiTRAN" is a heat transfer enhancement element designed to improve the performance of heat exchangers, particularly intended for use in tubular heat exchangers. By inserting hiTRAN into the tube, turbulence is generated within the tube, significantly improving heat transfer efficiency. The benefits obtained from the hiTRAN heat transfer enhancement element are as follows: ✓ Improvement and enhancement of heat exchanger capacity ✓ Increase in tube-side heat transfer coefficient (up to 16 times) ✓ Reduction in heat exchanger surface area and weight ✓ Reduction in maintenance costs due to decreased fouling ✓ Energy savings due to reduced energy requirements ✓ Lower maintenance and installation costs As fouling inside the tube increases, the performance of the heat exchanger decreases, leading to more frequent cleaning. This occurs because the flow velocity at the tube wall is slow, allowing dirt to accumulate there. As a result, additional energy is required to restore the performance of the heat exchanger, leading to a decline in production efficiency. Naturally, maintenance costs also increase. Here, we will introduce the mechanism of fouling reduction in the tube by hiTRAN. *For more details, please refer to the materials or feel free to contact us.*

• Other machine elements

Tube-type heat exchanger heat transfer enhancement element 'hiTRAN' improves heat exchanger performance for production optimization and energy reduction!

CALGAVIN is a group of experts providing solutions to various problems related to heat exchangers. - Optimization of plant operations - Removal of plant limitations - Reduction of required energy For these solutions, CALGAVIN has been thoroughly researching the optimization and improvement of heat exchangers in collaboration with universities and research institutions for over 40 years. By inserting 'hiTRAN', a heat transfer enhancement element, into tube-type heat exchangers, both new and existing, various benefits can be obtained: - Reduction in the number of tubes, weight reduction, and decreased installation area - Reduction in initial costs and installation expenses - Increase in heat transfer coefficients - Decrease in heat transfer area - Maintenance of long-term operation by reducing fouling inside the tubes - Increase in production while reducing energy consumption - Reduction of required energy - Decrease in maintenance costs *For more details about the product, please refer to the catalog or feel free to contact us.

• Other machine elements
• Other metal materials

On November 6th (Thursday) to 7th (Friday), 2025, we held the "Human Body Day 2025" at the NAC Image Technology Akasaka Multi-Purpose Space. We have uploaded videos of the highlights from each company and the presentations that took place on the day to our website. We encourage you to take a look. ---[Report on Human Body Day 2025 is here]------------------- https://info.nacinc.jp/jintaiday2025-report ------------------------------------------------------------------------- On the day of the event, participants were able to experience a wide range of products in a hands-on session format, including motion capture, force plates, eye tracking, and human body analysis software. We received numerous comments from attendees expressing high satisfaction, saying, "It was great to gain various information all at once," which makes us very happy. NAC Image Technology will continue to provide "valuable products to our customers." We hope you will join us for our next event as well.

The "Mechanical Stitch Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is kept to a minimum. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.