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Flanged Vertical Discharge Cowls –

Flanged Vertical Discharge Cowls

Performance Curve -

Description

The Flanged Vertical Discharge Cowls are ideal in ducted systems where the fan is mounted remotely below roof level.
They work together with a mechanical exhaust system while preventing the entry of rain when not in use. These durable and robust units are designed for mounting on circular duct and flue discharges using a flange.
There are 11 sizes in the range handling air flows from 0.2 to 55 m3/s.
Features
  • Enables the vertical discharge of air while preventing rain from entering building.
  • Steel components have a corrosion resistant finish.
  • Fitted with reliable gravity air-operated backdraft shutters.
  • Construction
    Backdraft shutters:
    Sizes 40 to 80 - Made from aluminium.
    Sizes 100 & 180 - Made from galvanised sheet steel.
    Cowls are of galvanised steel.
    Fitted with gravity air-operated backdraft shutters.
    Steel components have a corrosion resistant finish.
    Special Note
    Flanged Vertical Discharge Cowls are designed for relatively high air discharge velocity. At low discharge velocities, rain could enter the building. For these types of applications an Alpha Relief Air Vent is recommended.
    For any application where prevailing winds may lift the shutters of the Flanged Vertical Discharge Cowl, we recommend the fitting of Magloks®.
    Ensure the hinge of the shutter points down the slope of the roof.

    Suggested Specification

    The vertical discharge cowls shall be of the RVF series as designed and manufactured by Fantech Pty Ltd.
    Each unit shall incorporate gravity air-operated backdraft shutters that are constructed from aluminium or galvanised sheet steel.
    Cowls are of galvanised steel and steel components shall have a corrosion resistant finish.

    Dimensions

    Product CodeABCDEFGH
    RVF040400485812450656300380
    RVF0505005851212560756350430
    RVF0565606451212620816380460
    RVF0636307151212690886400480
    RVF0717107951612770966450530
    RVF08080088516128601056500580
    RVF10010001106161510701258600680
    RVF12512501356201513201508700780
    RVF14014001526201514701658800880
    RVF16016001730241916801854900980
    RVF1801800196024191880205310001080
    RVF045450535812500706325405
    RVF031315380810355580250330
    RVF035355420810395620250330
    RVF090900100616159701156500580
    RVF2002000216024192080226011001180

    *All dimensions in mm, unless otherwise stated

    Elta Group