Trox VFL - Square or Rectangular Duct Adaptors

04/2014 US K5 – 2.1 – 8
Accessories
Application
– The VFL-ED (exhaust orientation) and VFL-SD
(supply orientation) are designed for insertion
into square or rectangular ducting
Nominal VFL sizes
– 4", 5", 6", 8" and 10"
Nominal adaptor sizes
– See table below for sizes
– Other adaptor sleeve heights, widths and
depths available upon request
Special features
– Exhaust or supply orientation
– VFL secured by brackets and sealed to adaptor
Materials and surfaces
– Adaptor made of 20 ga. galvanized steel
– Natural finish
Description
Volume ow limiter
Type VFL (ED & SD)
Square or Rectangular
Duct
Typical in-duct installation (VFL-ED shown)
Dimensions [in] Duct Adaptor Units Type VFL-ED and -SD
Nominal
duct size
Nominal
VFL size
A B ØD L
in in in in
6" x 6" 100 5⅞ 5⅞ 3¾ 4
6" x 6" 125 5⅞ 5⅞ 4¾ 4⅝
8" x 8" 100 7⅞ 7⅞ 3¾ 4
8" x 8" 125 7⅞ 7⅞ 4¾ 4⅝
8" x 8" 150 7⅞ 7⅞ 5¾ 5⅞
10" x 10" 100 9⅞ 9⅞ 3¾ 4
10" x 10" 125 9⅞ 9⅞ 4¾ 4⅝
10" x 10" 150 9⅞ 9⅞ 5¾ 5⅞
10" x 10" 200 9⅞ 9⅞ 7¾ 6⅞
12" x 12" 100 11⅞ 11⅞ 3¾ 4
12" x 12" 125 11⅞ 11⅞ 4¾ 4⅝
12" x 12" 150 11⅞ 11⅞ 5¾ 5⅞
12" x 12" 200 11⅞ 11⅞ 7¾ 6⅞
12" x 12" 250 11⅞ 11⅞ 9¾ 8⅝
Dimensional drawing of VFL - ED and - SD
VFL
Adaptor Sleeve
A
1˝
L
A
B
ØD
*Standard sizes shown. Other sleeve dimensions available upon request.
VFLSquare or rectangular duct adaptor