Starduct Ball Nozzle Diffusers have frame made of 1.2mm aluminum sheet grade A6063-T5. The core is sphere-shape made of 1.0mm aluminum sheet . The adjustable core allow concentrating airflow to a place. A shutting door is equipped that can be closed manually. The frame is lengthen to create a "build-in air plenum" for flexible ducts.

Powder coating finish in RAL9010 standard colors or optional color as requested with Jotun paint or equivalent, service life over 5 years

Production standards : Ashrea 70:2006. ASHRAE 70-2006 Standard “Method of Testing for Rating the Performance of Air Outlets and Inlets” ADC1062: GRD-84 “Test Code for Grilles, Registers and Diffusers”.

Scope of testing: A) Sound Power Level (NC) B) Air Volume versus Static Pressure C) Area Factor D) Throw Pattern (test report pending)