Sundstrøm SR 307 control valve

Compressed air accessory SR 307 is easily mounted on Sundström half- and full-face masks. The airflow is controlled by the adjustment valve on the belt, providing a flow range of 150-320 l/min. The supply pressure at the adjustment valve must be 4-7 bar. A flow meter and warning whistle for occasional and continuous monitoring of the airflow are included.

• The compressed air accessory is specifically designed for heavy and prolonged work in environments where contaminants are difficult to measure or particularly toxic.