Hand-operated airflow control valves used in ventilation systems are designed to regulate the air volume and pressure. They are installed in duct branch takeoffs so as to easily regulate the airflow after measuring the air velocity with an anemometer and determining the air volume. SanTech manufactures hand-operated control valves in sizes starting from 100x100mm.  They are made of corrosion-resistant zinc-coated sheet metal.

The company also offers electrically-operated automatic airflow shut-off valves designed for ventilating equipment. Once the equipment is switched off it automatically stops the flow of air. Such valves serve as an automatic control system protecting the equipment from damage.