For those struggling with piping welding construction, here is a solution introduction.

Solve issues such as "technology inheritance," "difficulty in securing veteran engineers," and "fire risk"! Enables anyone to easily and quickly carry out construction, improving safety.

The "LOKRING fitting" is a joint that can be installed without the use of fire, eliminating any costs associated with welding. In general assembly on-site, the installation time can be significantly reduced compared to pipe welding, allowing for substantial cost savings in total expenses, including labor costs. For those inquiring, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Introduction】 ■ No use of fire: No need for protective measures, eliminating the risk of fire or explosion ■ Installation time is about 1/10 of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for piping purging or cleaning ■ U-shaped dedicated tool: Allows for piping installation even in tight spaces *For more details, please download the PDF or contact us.

• Pipe Fittings

Due to the ability to carry out construction in any weather conditions, we have received positive feedback that it prevents delays in construction and reduces the waiting time for workers.

The "LOKRING fitting" is a fitting that can be installed in any weather and under any circumstances, preventing construction delays and reducing workers' waiting time, which has received positive feedback. Since it is installed using a dedicated hydraulic tool without the use of open flames, it is not affected by rain or wind. There are even cases where it has been used underwater. When piping is adjacent to walls, ceilings, or floors, the dedicated tool for the "LOKRING fitting" is U-shaped, allowing easy access from any direction without moving the pipes, even in tight spaces. This is particularly effective when dealing with steam trace piping that is in contact with the main pipe. Installation can be performed even when fluid is flowing. For example, when repairing downstream piping, the upstream stop valve is closed, but sometimes debris on the valve seat can cause a seat leak, resulting in a small amount of fluid flow. The "LOKRING fitting" can be installed even if there is some leakage from the fitting or piping, as long as it can be secured to the piping. *For more details, please download the PDF or contact us.*

• Pipe Fittings

Utilized in major oil refineries, chemical plants, and (thermal/nuclear) power plants! Construction time is less than 1/10, allowing for shortened construction periods and cost reductions.

Generally, pipe welding in a plant requires welding permit applications, draining of piping, flushing and drying, installation of leak detectors, securing and scheduling of welders, and other tasks that can be time-consuming and costly. Additionally, the installation and dismantling of scaffolding, installation of ventilation equipment, fireproofing, and installation of fire extinguishing equipment are necessary, which can make rapid repairs difficult. The "LOKRING fitting" does not use fire, requires no preparation or procedures before and after installation, and can be easily and quickly installed by anyone after just a few hours of training, allowing for significant reductions in construction time and overall installation costs. For inquiries, we can provide case photos and videos for your reference. Please feel free to contact us. 【Benefits of Implementation】 ■ No use of fire: No need for fireproofing, eliminating the risk of fire or explosion ■ Installation time is about 1/10 that of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for purging or cleaning of piping ■ U-shaped dedicated tools: Allows for piping installation in narrow spaces

• Pipe Fittings

Anyone can easily and quickly perform reliable construction equivalent to welding, contributing to quality improvement and maintenance.

The "LOKRING fitting" is a joint that allows anyone to easily and quickly perform installations at a level equivalent to welding. Therefore, it can solve the problem of "the lack of successors in an era where the inheritance of technology is not progressing as hoped, leading to a decline in technical skills (quality)." Since it does not require heating work, it is also expected to reduce the accident rate related to OSHA. For those who inquire, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Implementation】 ■ No equipment, facilities, or procedures required for welding ■ Installation time is about 1/10 of welding: shortened construction period ■ Can also be used for repairing existing corroded pipes ■ Simple and quick installation: minimizes equipment downtime ■ Permanent connection: no maintenance or repairs needed after installation ■ No need for pipe purging or cleaning ■ U-shaped dedicated tool: allows pipe installation even in narrow spaces ■ No use of open flames: no need for protective measures, eliminating the risk of fire or explosion *For more details, please download the PDF or contact us.

• Pipe Fittings

Welding uses fire, so safety is a concern. We provide peace of mind and address such worries.

The "LOKRING fitting" is a fitting that reduces fire risk and enhances safety because it does not use open flames. Since there is no heating work involved, it leads to a decrease in the accident rate related to the Occupational Safety and Health Administration (OSHA). We have also received positive feedback regarding the fact that there are no costs associated with welding. For those who inquire, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Introduction】 ■ No equipment, facilities, or procedures required for welding ■ Construction time is about 1/10 of welding: shortened construction period ■ Can also be used for repairing existing corroded pipes ■ Simple and quick installation: minimizes equipment downtime ■ Permanent connection: no maintenance or repairs needed after installation ■ No purging or cleaning of pipes required ■ U-shaped dedicated tool: allows pipe installation in narrow spaces ■ No open flames used: no need for protective measures, eliminating the risk of fire or explosion *For more details, please download the PDF or contact us.

• Pipe Fittings

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.