Supply air disc valve difusers

Air disc valve diffusers DVD-S constructed from high quality galvanised steel central disc valve, circular flange collar,and mounting duct, with powder coated white color. They are coming with mounting ring for easily ductwork  to supply fresh and adjustable airflow discharges by easily regulating the disc valves up and down,creating low noise and comfort zone for occupants.They are suitable for both heating and cooling air conditioning system in small space or rooms