3S Co

3S Co., Ltd. is the only dedicated valve positioner specialist manufacturer in Japan, supplying the positioners that are critical to reliable plant operation. The company name reflects its three founding values of Safety, Speed and Service, representing stable product quality, fast delivery and responsive support, including on-site response and after-sales follow-up.

Building on a strong reputation within the quality-conscious Japanese market, 3S positioners have been adopted by numerous overseas users as well. The company pursues continuous development under a rigorous quality management system, publishes a product list with model certification listings, and positions itself as the dependable partner supporting plants around the world that produce the energy and materials essential to daily life.