Fantech
Flanged Vertical Discharge Cowls –
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Flanged Vertical Discharge Cowls -  - Fan

Performance Curve -

Performance Curve for Flanged Vertical Discharge Cowls

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

Dimension Drawing for Flanged Vertical Discharge Cowls
Product Code A B C D E F G H
RVF040 400 485 8 12 450 656 300 380
RVF050 500 585 12 12 560 756 350 430
RVF056 560 645 12 12 620 816 380 460
RVF063 630 715 12 12 690 886 400 480
RVF071 710 795 16 12 770 966 450 530
RVF080 800 885 16 12 860 1056 500 580
RVF100 1000 1106 16 15 1070 1258 600 680
RVF125 1250 1356 20 15 1320 1508 700 780
RVF140 1400 1526 20 15 1470 1658 800 880
RVF160 1600 1730 24 19 1680 1854 900 980
RVF180 1800 1960 24 19 1880 2053 1000 1080
RVF045 450 535 8 12 500 706 325 405
RVF031 315 380 8 10 355 580 250 330
RVF035 355 420 8 10 395 620 250 330
RVF090 900 1006 16 15 970 1156 500 580
RVF200 2000 2160 24 19 2080 2260 1100 1180

*All dimensions in mm, unless otherwise stated