Nuclear Industrial Directory of Japan

Nuclear Industrial Directory of Japan

5-12-1 Nishitachibana-cho, Amagasaki-shi, Hyogo 660-0054, Japan

Contact Person
Mr. Naoya Miyamoto

Corporate Information

“Safety”,“ Security” and“ Confidence”
Toa Valve Engineering Inc. has supplied the valves for all nuclear power plants (PWR, BWR, ABWR, FBR) in Japan since Japan’s first commercial nuclear power plant-Tsuruga Unit No.1 in 1967. Moreover, our valves are used as the main valves for the primary and secondary system of all PWRs (Pressurized Water Reactor) in Japan. TVE has also provided the critical maintenance services for safety and reliable operation in reply to various customer’s needs. Our valves are also used at nuclear plants in USA, Mexico and China. TVE has consistently provided manufacturing, sales, maintenance of industrial valves and safety valves as one of the leading valve suppliers, along with changes in the main market, such as for ships until about 1945 and for power plant during the years of high economic growth.

“Opening”,“ Closing” and“ Relieving”

We have prided ourselves on our contribution to the stable electric supply through safety and reliable operation of the power plants, providing products which fulfill those functions reliably under all circumstances and maintenance. We put our continuous effort into contribution of the development of economy and society while respecting culture and custom of each country/region as well as complying with the international rules and the local laws to cooperate with the international society. It is our belief that our considerable experience and high quality acquired through half a century of valve design and manufacturing for nuclear will respond to the needs of a new era.

Main Activities

【High Pressure Valve】

Manufacturing and Maintenance of Casting & Forged Steel and Stainless Steel Valves, etc.

covering the ranges from ultra high-temperature and from ultra super critical pressure.
1500lb to 4500lb / 2 inches to more than 30 inches WCB, WC6, WC9, C12A, A105, F22, F91 etc.

【Valve Types】

Gate valve, Globe valve, Needle valve, Check valve, Safety valve Relief valves and various other special valves.

Manufacturing and Supply of Various Maintenance Equipment


Supply Results for PWRs in Japan

Since the first reactor unit was constructed, TOA valves have been delivered to evolving Japanese nuclear power plants.

Collaboration with KITZ

The capital and business alliance with KITZ Corporation has come into effect since February, 2016. TVE: High Pressure valve KITZ: Low / Middle Pressure valve