Outline
Company Name:
Suiken Co., Ltd.
Headquarters:
206-7, Kitawaki, Hino-cho, Gamo-gun, Shiga 529-1663 Japan
Founded:
April 1970
Capital:
JPY 95.6 million Yen
Number of employees:
80 as of April 2024
Board Directors:
President: Yasunari Sato
Director: Tomonori Yanaga
Director: Satoshi Hatanaka
Auditor: Tetsuo Yamamoto
Products and Services:
Development, Manufacture and Sales of Fittings for Water and Sewer Pipeline
Construction of under pressure installation system
Development, Manufacture and Sales of seismic isolation joints for earthquake mitigation
Headquarters and factory: Hino-cho, Gamo-gun, Shiga
Sales offices:
Sapporo, Sendai, Tokyo, Nagoya, Osaka, Hiroshima, Fukuoka,
Quality Activities
Quality Policy
Suiken Co., Ltd. is committed to offer high-quality products and services with the needs of customers, improve employee satisfaction, and contribute to the company’s development and society.
Registered contents
・Applicable Standard:
ISO 9001:2015 Quality Management System
・Scope of Certification:
Development, Manufacture and Sales of Fittings for Water and Sewer Pipeline
Provision of Uninterrupted Water Supply Works
Development, Manufacture and Sales of Seismic Isolating Fittings for Piping
・Certified Organization:
Suiken Co., Ltd. Headquarters & Factory
・Certification Number:
GJIP-0183-QC
・Validity Period:
Until July 20, 2026
・Certification Body:
G-CERTI
History
1970
Founded “Suiken Consultant Company” in Osaka city.
1973
Company name changed to “Suiken Co., Ltd”.
Developed the wedge-type retainer glands for tyton joints of pipes.
1976
Developed the wedge-type retainer glands for mechanical joints of pipes Mecha-holders.
1980
Developed the ductile cast iron flexible expansion joint SUPER FLEX (the initial model); the 1st ball-type flexible expansion joint in the world.
1983
Licensed the technology of wedge-type retainer glands to a Canadian company.
1984
Licensed the technology of wedge-type retainer glands to EBAA Iron, Inc./ USA.
1985
Improved the ductile cast iron flexible expansion joint SUPER FLEX to the 2nd generation model.
1987
Licensed the technology of SUPER FLEX to EBAA Iron, Inc. / USA.
1988
Relocated headquarters and factory to Takatsuki city, Osaka.
Developed the anti-corrosion T-bolt Fukugo Bolts.
1989
SUPER FLEX had no damage during the Loma Prieta earthquake in San Francisco. Its seismic isolation performance was recognized by the waterworks industry.
1991
Received the Small and Medium Enterprise Agency Director’s Encouragement Award for the development of the SUPER FLEX
1994
SUPER FLEX had no damage during the Northridge earthquake in San Francisco.
Its earthquake-resistant performance was recognized by the waterworks industry.
Started to sell Multi-diameter couplings All Fits Joint in Japan as a distributor of
Georg Fischer WAGA N.V./ The Netherlands.
Developed the special anti-corrosion cover for ductile iron pipes.
1995
The Great Hanshin-Awaji (Kobe) Earthquake occurred. More than 300 units of SUPER FLEX used in the suffered area had no leakage and proved its effectiveness.
Won the “NBK Grand Prize” at the New Business Idea Contest hosted by the Kansai New Business Council for the SUPER FLEX.
1996
Won the Invention Merit Award at the Invention Grand Prize hosted by the Japan Institute of Invention and Innovation for the SUPER FLEX.
1997
Won the Science and Technology Agency Director’s Award for the development of the Swinging and Telescopic Pipe Joint.
Developed the seismic isolation joint for earthquake mitigation building Menshin Bender.
1998
Constructed and relocated the new headquarters and factory to Hino town, Shiga Prefecture.
The founder, Toshiyuki Sato, was awarded the Medal with Yellow Ribbon.
Developed the ductile iron or steel fabrication flange adapter Expansion Jointer.
1999
Improved the ductile cast iron flexible expansion joint SUPER FLEX to the current model.
Developed EM under pressure valve installation system S-GATE, which made it possible to insert a resilient-seated gate valve into the existing pipe.
2003
Developed S-Bunki Valve which integrates a standard resilient-seated gate valve and tapping tees.
2005
Licensed S-GATE technology to Advanced Valve Technologies (AVT), LLC / USA. AVT is expanding its sales in North America & Europe; which is widely known as “EZ Valve”.
2006
Licensed S-GATE technology to Korean company.
2010
Taipei Water Department of Taiwan approved S-GATE system.
2012
Developed the PE ended ball-shaped swivel joint PE Bender.
Started to sell the pressure tapping system EF bunki soft.
2015
Shunichi Fujimoto appointed as President
Developed S-Bunki Valve-Menshin type which combines S-Bunki Valve with ball joint.
Developed the new model of S-GATE EX which achieved further compact and easy installation.
2016
Developed the stainless steel pipe end integrated (insulated structure) SUPER FLEX.
2017
Developed the EM under pressure butterfly valve installation system BVI, which made it possible to insert a butterfly valve disc into the existing pipe.
2018
Licensed the latest model of S-GATE EX to Shin Jin Precision Industrial Co., Ltd./Korea.
2019
Macau Water started to use S-GATE system.
2020
PUB Singapore’s National Water Agency started to use S-GATE system.
Celebrated the 50th anniversary of the company.
2021
Developed the freezing method with a pull-out resistant mechanism which makes it possible to replace old fire hydrants or air valves safely.
Yasunari Sato appointed as President and Representative Director
Developed the special tapping tees F-Bunki KB type which makes possible to remove a tapping valve after use.
2022
Introduced the new live valve insertion for polyethylene pipe KATANA VALVE.
