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  6. Ring rolling process

Ring rolling process

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last updated:Oct 30, 2025

明和工業
明和工業
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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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Ring rolling process

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  • Related Link - https://www.meiwajp.com
  • Special site - Product/service details - https://pr.www.ipros.com/meiwajp/product/

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basic information

【Scope of Application】 ■Pipe Type: Stainless Steel Pipe for General Piping (JIS G 3448) ■Diameter: 75SU to 150SU ■Maximum Operating Pressure: 2.0MPa ■Housing: Top Joint B-0 (Hot-Dip Galvanized / Fire Safety Certification Number PJ-297)

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【Purpose】 Firefighting piping, etc. For more details, please refer to the PDF document or feel free to contact us.

catalog(4)

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News about this product(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.

  • Product news

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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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.

  • Product news

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 ■ Made of stainless steel with excellent corrosion resistance, considering the global environment

Added to bookmarks

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Bookmark has been removed

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You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Product news

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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

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.

  • Product news

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 is made 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 ■ Made of stainless steel with excellent corrosion resistance, considering the global environment

Added to bookmarks

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Bookmark has been removed

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Companynews list (84)

Company information

明和工業

明和工業

Water supply and drainage construction business

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Meiwa Kogyo Co., Ltd. was established in 1969 as a plumbing construction company in what is now Niigata City. Currently, we have transformed into a company that provides various products and services related to water supply infrastructure and gas. We deliver innovative products such as the freeze-proof rapid air valve "Airis Neo" and the temporary piping rental service "Repix." Our ideal "monozukuri" (manufacturing) means pursuing uniqueness, simplicity, and high performance to the utmost limit. "We want to deliver unique and excellent products and services to people around the world." This is the greatest driving force that propels our company forward and represents our significance as a business. We will continue our thorough "monozukuri" and provide high-quality products and services that satisfy everyone.

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