The Supply Valve is designed to supply air at relatively high velocities whilst maintaining low noise characteristics. Adjustment of the airflow is simple, the inner cone being rotated to the required setting and locked in position with a single nut. Each air valve is supplied complete with a mounting ring from which it can be simply removed for cleaning without affecting the setting of the valve.

The Metal Supply Air Valve is supplied complete with the mounting ring; the colour is RAL 9010 white.