Grills, diffussers
Round air intakes are used to terminate conduits with a circular cross-section. They should be used with small air flow velocities. Intakes are equipped with fixed shutters installed at an angle of 45o, which protect the intake hole against precipitation. Behind the shutters is a protective screen with a mesh sized 12.5 x 12.5 mm up to diameter 200, and 20 x 20mm for a bigger diameter.
YGCV
Round air intakes are used to terminate conduits with a circular cross-section. They should be used with small air flow velocities. Intakes are equipped with fixed shutters installed at an angle of 45o, which protect the intake hole against precipitation. Behind the shutters is a protective screen with a mesh sized 12.5 x 12.5 mm up to diameter 200, and 20 x 20mm for a bigger diameter.