Supply air valve for wall installation with adjustable operations. Adjustable airflow rate with trimming plate. Openable front panel enables the cleaning of diffuser and ductwork.

Supply/exhaust valve for ceiling and wall installation with adjustable pressure loss. Flow pattern can be directed.

Supply air valve for ceiling installation with adjustable operations. Flow pattern selection and pressure loss adjustment by front plate. Airflow rate measurement and adjustment facility. Detacable front plate.

Supply air valve for wall installation with adjustable operations. Flow pattern selection and pressure loss adjustment by front plate. Airflow rate measurement and adjustment facility. Detacable front plate.

Exhaust valve with adjustable pressure loss. Airflow rate adjustment and measurement facility.