Vertical jet fans series with backward curved blades.
Versions up to size 450:
Standard: PE moulded housing - PP moulded impeller - stainless steel screws
ATEX 
: PE-el antistatic moulded housing - PP moulded impeller - stainless steel screws
Variants available for both versions on request as list.
Versions over size 450:
Standard: PP welded housing - PP welded impeller
ATEX : PP-el antistatic welded housing - PP-el welded impeller
Variants available for both versions on request as list.
