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  1. Home
  2. Building materials, supplies and fixtures manufacturers
  3. SK-KAWANISHI Co., Ltd.
Building materials, supplies and fixtures manufacturers
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SK-KAWANISHI Co., Ltd.

EstablishmentJuly 2, 1952
capital9800Ten thousand
number of employees204
addressKagawa/Ayagawa-cho, Ayauta-gun/Tao 7188-1
phone087-877-2800
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last updated:May 13, 2025
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  • Products/Services(163)
  • catalog(53)
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SK-KAWANISHI Co., Ltd. Company Profile

We are a pipe fitting manufacturer that always stocks fittings that can connect all types of pipes, responding to customer requests for "fittings like these."

Since its founding in 1952, Kawanishi Water Supply Equipment has been committed to "monozukuri" (manufacturing) as its own product, specializing in the field of pipe fittings and establishing an original brand to expand its technology. Our company conducts everything from product development and design, production technology and manufacturing equipment development and design, to mold making, core making, casting and melting, machining, painting, assembly, and shipping all within the same premises. The integrated development, manufacturing, and sales system creates our original "SK-KAWANISHI" brand products. We are dedicated to "monozukuri" that incorporates customer feedback and anticipates what customers would like to have, constantly challenging ourselves.

Business Activities

Development, manufacturing, and sales of pipe fittings.

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Hot water supply fitting *Suitable for connecting existing pipes and newly installed pipes in repair work!

Hot water supply fitting *Suitable for connecting existing pipes and newly installed pipes in repair work!

It is possible to change the type of pipe for leak repairs, and there are flexible, detachable joints that do not require pipe pre-treatment even in areas where heat cannot be used! Copper pipe sizes 30 and 40 have been added to the lineup.

The flexible expansion joint "SKX 'for hot water'" can be used at a maximum temperature of 80°C and is a cold joint that allows for smooth connections with existing pipes during repairs and renovations of hot water piping. It can be installed in narrow spaces and is capable of connecting even when there are changes in pipe types or misalignment during leak repairs. 【Features】 ■ Compatible with 30 and 40 copper pipes ■ Allows connection of different pipe types between existing and new pipes with a single joint ■ No pre-treatment of pipes required ■ Suitable for areas where heat cannot be applied ■ Can connect copper pipes with cross-linked polyethylene pipes or polybutene pipes, as well as copper pipes with heat-resistant rigid PVC pipes ■ Socket with male threads has also been added to the lineup *For more details, please download the PDF or contact us directly.

Proposal for the installation of partition valves in external high-density PE pipes *to reduce leakage risk.

Proposal for the installation of partition valves in external high-density PE pipes *to reduce leakage risk.

Reduce the risk of water leakage from flange connections! A flange-less mechanical joint method that can also prevent the shaking and tilting of heavy objects! Achieve total cost reduction as well.

The current external structure has transitioned to high-density polyethylene pipes, and the use of flange-type soft seal shut-off valves with EF flanges has become common. Traditional methods have faced issues such as pipe distortion and leakage due to the shaking and tilting of heavy objects during earthquakes. Kawanishi Water Supply Equipment's Suppon M Joint Method "Suppon MPX Soft Base" features a flange-less structure, providing a mechanical joint structure with seismic resistance that has connection strength equal to or greater than the pipe body strength, thereby reducing the risk of leakage and contributing to improved safety. 【Features】 ■ Shortened construction period as electrical fusion work is not required ■ Reduced leakage risk due to flange-less design ■ Easy installation with mechanical construction method ■ Stability of shut-off valves due to the base *For more details, please download the PDF or feel free to contact us.

Products/Services (163)

Hot water supply fitting *Suitable for connecting existing pipes and newly installed pipes in repair work! product image
Hot water supply fitting *Suitable for connecting existing pipes and newly installed pipes in repair work!
Proposal for the installation of partition valves in external high-density PE pipes *to reduce leakage risk. product image
Proposal for the installation of partition valves in external high-density PE pipes *to reduce leakage risk.
Solve your worries about connecting existing pipes and new pipes! No need for extraction protection with 'SKX'. product image
Solve your worries about connecting existing pipes and new pipes! No need for extraction protection with 'SKX'.
Flexible expansion joint "SKX Series for hot water" *Delivery case examples available product image
Flexible expansion joint "SKX Series for hot water" *Delivery case examples available

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catalog(53)

Survey responses are required to view e-book details. Click to view the e-book.

Flexible expansion joint "SKX for hot water" (lineup)

Flexible expansion joint "SKX for hot water" (lineup)

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Flexible expansion joint "SKX for hot water" (Proposal)

Flexible expansion joint "SKX for hot water" (Proposal)

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For connecting high-density polyethylene pipes

For connecting high-density polyethylene pipes

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New lineup

New lineup

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news(18)

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Notice of the Opening of Kawanishi Water Supply Equipment Co., Ltd. Osaka Office

  • COMPANY

We are pleased to announce that our company will open a new office in Imabashi, Chuo Ward, Osaka City on February 7, 2024, to strengthen our sales activities in the Kansai region, and we will begin operations as the Osaka Office. With the establishment of the Osaka Office, we are committed to further improving our services, and we kindly ask for your continued guidance and support.

Apr 03, 2024

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Completion of the 2020 edition of "Case Studies and Construction Method Proposals for Useful Pipe Fittings in Architectural Equipment Piping"!

  • CATALOG

The 2020 version of our delivery case study materials for pipe fittings, which have received great acclaim every year, has been completed. We clearly introduce specific usage methods in buried piping, indoor piping, and temporary piping in building facilities, along with user feedback and photos. If you're interested, please feel free to download it!

Apr 20, 2020

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We exhibited at the 50th Pipe and Equipment Comprehensive Exhibition.

  • COMPANY

Kawanishi Water Supply Equipment Co., Ltd. exhibited at the "Pipe Equipment and Facilities Comprehensive Exhibition" held at the Tokyo Metropolitan Industrial Trade Center from October 24 (Wednesday) to October 26 (Friday), 2018. This exhibition, marking its 50th anniversary in 2018, showcased the latest technologies proudly presented by various companies, contributing not only to the development of the plumbing industry but also to related industries. We would like to thank everyone who visited us during this event.

Nov 01, 2018

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Detailed information

Company name SK-KAWANISHI Co., Ltd.
number of employees204
Contact addresspostalcode 761-2103 Kagawa/ Ayagawa-cho, Ayauta-gun/ Tao 7188-1View on map TEL:087-877-2800 FAX:087-877-2801
Business LocationsClick here for the list
Industry Building materials, supplies and fixtures manufacturers
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