Senju was the first in Japan to develop a sprinkler head for fire extinguishing in 1963, and for over a quarter of a century has been supplying high quality, high reliability sprinkler heads and connecting valves.
Our guiding principle, as a leader in the field, is to supply unparalleled products by creative technology.
The goal is to protect customers' lives and property through reliable sprinklers. Our products comply with industrial standards, product tests, and examinations for model approvals in and outside of Japan, and are the result of exceptional technical expertise.
The heat sensor, for example, plays a critical role in assuring perfect operation. It is supported by the advanced technical know-how and best materials provided by Senju Metal Industry Co., Ltd. In the area of analysis and material engineering, links with Industrial Analysis Service Ltd.
have helped build a maneuverable coordinate system for the entire group of companies.
Synergies achieved by jointly developing system technologies deliver excellent results.
Our process control is by far the most rigorous among our competitors, thus our quality guarantee and products are outstanding.
100% security is offered based on sophisticated production technology and vast research data.
Committed to diversification, high functionality, and global business, we continue to introduce the latest in production facilities, research and development to build even greater opportunities.
Market Share and Transition of Fire Sprinkler Heads in Japan.

Products for Japanese market.