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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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  • Apr 04, 2024
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Apr 04, 2024

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
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 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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  • PRODUCT

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.*

Oct 15, 2026

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[Video Manual Guide] We will explain in an easy-to-understand video how to connect the wireless set that links the bed exit sensor and nurse call system!

  • NEW
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Hotron, which manufactures and sells sensors, provides bed exit sensors for hospitals, nursing, and care facilities. Hotron offers easy-to-understand video guidance on how to use bed exit sensors wirelessly and how to set up device connections! ▼ Video Manual (YouTube) https://www.youtube.com/playlist?list=PLNVA4mTrZDqtJa6MfFRZQxwtfCSnAfxVy 【Bed Exit Sensors】 ○ Non-contact infrared sensor, simply place it - Pole-kun HB-H1 ○ Mat sensor, foldable thin mat - Mat-kun HB-UST ○ Body movement call - Ugo-kun HB-TV3 ○ Body movement call for wheelchairs - Ayumi-chan HB-WTV3 【Options】 ○ Nurse call linked wireless set - Wireless set (transmitter/receiver) HB-RS/HB-RJ ◎ For more information about the products, please contact us or download the catalog.

Oct 15, 2026

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HK-2

Recommended for earthquake measures for automatic doors and equipment! Seismic device HK-2.

  • NEW
  • PRODUCT

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Oct 14, 2026

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399_While pretending to be polite, persistently bombard the other person with questions to exhaust them!? 'Sea Lioning'

"SBS Marketing Co., Ltd." While pretending to be polite, relentlessly bombarding the other party with questions to exhaust them!? 'Sea Lioning'

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Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer attraction primarily in the BtoB (business-to-business) sector. On October 1, 2026 (Thursday), they published a page titled "While pretending to be polite, persistently bombarding the other party with questions to exhaust them!? 'Sealioning.'" 'Sealioning' is when one party, despite having no intention of engaging in a discussion, demands explanations from the other party to exhaust them. The page explains the main behaviors associated with 'sealioning,' the psychological background that leads to it, how to cope when being 'sealioned,' and self-control measures to avoid falling into 'sealioning.' (Page Overview: Excerpts) ■ What is 'Sealioning'? ■ The psychological background of people who engage in 'sealioning' ■ Differences from 'tone policing' and 'mansplaining' ■ How to cope when being 'sealioned' ■ Self-control measures to avoid falling into 'sealioning' (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/sealioning-2026-10/

Oct 13, 2026

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"Blink Detection SDK ver.1.1.0" now available - C#/.NET compatible, 4 platforms, 8 sample applications.

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  • PRODUCT

We have started offering the latest version 1.1.0 of the "Blink Detection SDK," which detects blinking from the state of eye opening and closing using only a PC's webcam or a smartphone camera. The face detection model has been updated to the lightweight and fast YuNet, and it supports usage from C#/.NET (verified to work with .NET 8). The same version is provided across four platforms: Windows, Linux, iOS, and Android, and it includes eight sample applications for each platform. It can process quickly using only the CPU without the need for a GPU, making it useful for integration into products and services for features like eye strain prevention alerts and touchless operations. A one-month free trial version (SDK/Windows app/smartphone app) is available.

Oct 13, 2026

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