Shirakawa dehumidifying equipment systems use our proprietary four-way valves to ensure smooth operations. Not only is our four-way valve smaller than conventional two-way valves, it can do the job of four two-way valves alone, bringing in big savings for you.

While a two-way valve completely shuts off the air stream when it fails, the airflow won't stop in a four-way valve. Our four-way valves, made entirely in Japan, are built to deliver flawless performance.