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  1. Home
  2. Water supply and drainage construction business
  3. 明和工業
  4. Cold-formed ring processing—demonstrating high pressure resistance and pull-out prevention through uniform ring processing without welding!—for connecting water supply pipes made of stainless steel pipes.
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  • Nov 29, 2023
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Nov 29, 2023

Cold-formed ring processing—demonstrating high pressure resistance and pull-out prevention through uniform ring processing without welding!—for connecting water supply pipes made of stainless steel pipes.

明和工業 明和工業
Ring rolling processing is a method of expanding a pipe into a ring shape. By performing the rolling process without welding the ring and the pipe, uniform ring processing becomes possible. It is compatible with piping for connected water supply pipes made of stainless steel pipes! We produce in our factory and provide high-quality, uniform products. Please feel free to contact us when you need our services. 【Features】 ■ Uniform ring processing ■ Compatible with piping for connected water supply pipes made of stainless steel pipes ■ High pressure resistance ■ High pull-out resistance ■ Stable quality due to processing in our own factory ■ Excellent corrosion resistance and environmentally friendly stainless steel
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Ring rolling process

High pressure resistance and draw-in prevention are achieved through uniform ring processing without welding!

The rolling ring processing is a method of expanding a pipe into a ring shape. By performing the rolling process without welding the ring and the pipe, uniform ring processing becomes possible. It is compatible with the piping of connected water supply pipes made of stainless steel pipes. We produce in our factory and provide high-quality, uniform products. Please feel free to contact us when you need our services. 【Features】 ■ Uniform ring processing ■ Compatible with the piping of connected water supply pipes made of stainless steel ■ High pressure resistance ■ High pull-out resistance ■ Quality is stable as processing is done in our own factory ■ Made of stainless steel, excellent corrosion resistance, and environmentally friendly *For more details, please refer to the PDF document or feel free to contact us.

  • Piping Equipment

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Stainless steel prefabricated processing pipe

We support various processing methods such as flange processing and roll grooving! We propose shapes suitable for your application.

The "stainless prefabricated processing pipe" is made of stainless steel with excellent corrosion resistance, lightweight, and offers superior workability on site. It can be used for a wide range of applications, including building equipment piping, plant piping, and water supply and drainage piping. Since all components are produced in our factory, we can accommodate requests for custom processing, and we provide high-quality and uniform products through rigorous inspection. Please feel free to contact us when you need our services. 【Features】 ■ Reduces labor hours for construction, shortening the construction period ■ On-site work is easier and faster compared to on-site processing ■ Savings on fittings through branching processing (including small diameters) ■ Quality is stable because processing is done in the factory ■ Piping that is environmentally friendly with excellent corrosion resistance *For more details, please refer to the PDF materials or feel free to contact us.

  • Piping Equipment

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One-touch mechanical architectural piping system / Grooved joint

Simple and speedy. A piping system that achieves outstanding labor savings.

Meiwa Kogyo's Grooved Joint is a one-touch mechanical joint system that integrates stainless steel pipes and fittings, suitable for a wide range of applications including building equipment piping, fire protection equipment piping, piping for various plant devices, and water supply and drainage piping. The one-touch design allows for speedy installation without the need for specialized piping techniques, enabling labor-saving and manpower-reducing measures on site. Additionally, since it uses stainless steel, there is no occurrence of red water, ensuring excellent piping quality and hygiene. It has also obtained fire protection certification, making it suitable for use in fire protection equipment connection water supply pipes. ☆ Benefits of the Grooved Joint ☆ Point 1 [No Expertise Required] There is no difference in sealing performance regardless of who performs the installation. The installation can be confirmed with the stopper attachment. Point 2 [Easy Installation] Simply insert the spigot into the socket and rotate to complete the installation. No tools are required for sizes up to 100A, allowing for manual installation. Point 3 [Cost Reduction] By shortening installation time, installation costs can be significantly reduced. It is also possible to shift from skilled workers to general workers.

  • Fire extinguishing equipment

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Groove Joint Series / Glow Socket

Space-saving construction has further improved! Piping for sizes up to 80A can be done by hand.

Introducing the Glow Socket from our Grooved Joint Series! Available in sizes ranging from 40A to 125A, the installation efficiency in compact spaces has been further improved. For sizes 80A and below, piping can be done by hand, while for sizes 65A and above, we have jigs available. Please feel free to contact us when you need assistance. 【Product Lineup】 ■40A ■50A ■65A ■80A ■100A ■125A *For more details, please refer to the PDF document or feel free to contact us.

  • Water and sewerage pipe fittings

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Glow Bucket Strainer

Significantly reduces the effort required for cleaning and inspection compared to conventional bucket strainers!

The Glow Bucket Strainer is a product that allows for easy and safe cleaning and inspection. When opening the upper cover, there is no need for any bolt or nut tightening work; the upper cover can be removed with a single touch. Maintenance can be performed without tools for body diameters up to 150A. The product weight has been reduced to about one-third compared to conventional flange types, making it easier to handle. Since the face-to-face dimensions and filtration area can be customized, it can be replaced in existing spaces. 【Features】 ■ Easy and safe cleaning and inspection ■ Upper cover can be removed with a single touch ■ Safety is ensured during opening operations from above ■ Lightweight and compact ■ Face-to-face dimensions and filtration area can be customized *For more details, please refer to the PDF document or feel free to contact us.

  • Piping materials (copper pipes, cast iron pipes)

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Related catalog(5)

Ring rolling process

Ring rolling process

PRODUCT
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Stainless steel prefabricated processing pipe

Stainless steel prefabricated processing pipe

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Piping system / Grooved joint system

Piping system / Grooved joint system

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Groove Joint Series / Glow Socket

Groove Joint Series / Glow Socket

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Glow Bucket Strainer

Glow Bucket Strainer

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

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明和工業
Water supply and drainage construction business
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CCS3 product photo

The new product "Vehicle Count Sensor CCS3" enables efficient occupancy management of large parking lots.

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Hotron Inc. has launched its new product, the "Vehicle Count Sensor CCS3"! This product is a ceiling-mounted sensor that combines infrared and radar technology. It reliably detects vehicles in both directions with a single unit, accommodating traffic during congestion and vehicle passing, thus achieving efficient occupancy management in large parking lots. Additionally, it can be utilized for exit warning purposes in addition to vehicle counting, contributing to the safe and smooth operation of parking facilities. 'Features' - Improved detection performance against changes in road surface during rainy weather by using both infrared and radar. - Equipped with IP67 waterproof and dustproof performance, making it effective even in salt damage areas. - Various settings can be configured from a dedicated app (for Android devices), with current settings easily visible at a glance. - The base dimensions are the same as the previous model "CCS2," allowing for smooth replacement of existing equipment. *For more details, please refer to the product information, catalog download, or contact us.*

Sep 11, 2026

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Why did "participant-type" electronic signatures not become widespread? A thorough explanation of the reasons and the latest trends.

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The signing methods for electronic contracts (party type and witness type) are directly linked to the strength of their legal effectiveness. In this article, we will outline the reasons why the more stringent "party type" has been difficult to popularize until now. ---【Conclusion of this article】-------------------------------- • There are two signing methods for electronic contracts: "witness type" and "party type," which differ in the strictness of identity verification. • The main reasons why the party type has not spread are the three factors of "effort, cost, and the structural risk of entrusting a private key." • However, with the spread of public personal authentication (JPKI) using My Number cards, these three barriers are beginning to crumble. -------------------------------------------------------- The full text of the article can be accessed from the "Related Links."

Sep 11, 2026

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Announcement of the launch of the AI cleaning diagnostic service "SeveNavi".

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Seven Corporation has started offering the "SeveNavi AI Cleaning Diagnosis Service," which supports the organization and improvement of cleaning challenges in manufacturing environments. Organizing cleaning challenges with AI and visualizing the next steps In manufacturing cleaning, various factors need to be considered, including the material of the object, type of dirt, adhesion state, currently used cleaning agents, working time, safety, and equipment conditions. On the other hand, there are also several challenges faced on-site, such as: - Unable to determine if the current cleaning method is appropriate - Wanting to reduce cleaning time and labor - Concerns about the safety of cleaning agents and their impact on materials - Wanting to compare with another cleaning method but unable to set test conditions - Not being able to utilize past cases and knowledge for improvement activities SeveNavi organizes information such as the object, dirt, current cleaning methods, and site photos using AI, clearly presenting the applicability of cleaning methods, points of caution, missing information, and how to proceed with comparative testing. If you have any challenges regarding reviewing current cleaning methods, comparing new cleaning methods, or reducing cleaning time and labor, please feel free to consult with us.

Sep 11, 2026

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[Free Participation, Online] DWG-Compatible CAD "ARES" Latest Features Seminar "Graebert neXt Japan 2026" Held on 9/17

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An online seminar will be held for design, purchasing, and DX promotion personnel considering the introduction or switch to new CAD systems, featuring the DWG-compatible 2D CAD "ARES." Participants can review content directly related to business improvement, including a comparison of features and performance with AutoCAD, automation using the CAD-specific AI "A3," automatic generation of DWG drawings from BIM data, and new ways of working in the cloud. ■ Date and Time: September 17, 2026 (Thursday) 13:30 - 15:00 ■ Format: Online (with archive viewing available) ■ Participation Fee: Free ■ Recommended for: - Those considering switching from AutoCAD - Those interested in AI utilization and automation in CAD operations - Those looking to streamline collaboration with BIM - Those seeking an environment where drawings can be edited regardless of location As a viewing benefit, a free "ARES Trinity Utilization Manual" (worth 6,000 yen) will be provided. Additionally, if you apply through the URL in the related links, our company, Keynos Logic, will consistently support you from post-seminar implementation considerations to estimates and support after operation begins. If you are interested in ARES, feel free to start by participating in this seminar.

Sep 11, 2026

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I participated in the AMD Embedded Computing Summit Tokyo 2026.

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On August 28, 2026 (Friday), I participated in the "AMD Embedded Computing Summit Tokyo 2026" and showcased a "Gesture Demo" as a partner of AMD. The demonstration introduced a configuration that combines gesture recognition using OpenCV, status reporting with LLM, and one-axis motor control using INtime 7.2 and RSI-ECAT, enabling collaboration between AI, image processing, and real-time control on a single PC. We presented a next-generation PC-based industrial control system that integrates AI, image processing, and real-time control on one PC. <Overview of Demo Participation> https://www.mnc.co.jp/INtime/AMDxINtime/AMDEcsTokyoResults.html <Actual Demo Video> https://youtu.be/JmZke75_y0s <AMD CPU + INtime RTOS Introduction Page> https://www.mnc.co.jp/INtime/AMDxINtime/amdxintime.html #PC #RealTimeOS #IndustrialPC #AI

Sep 10, 2026

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