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Order Details
Design changes reserved · All rights reserved © TROX GmbH (08/2009)
Specification text
Circular volume flow limiter Type VFL in 6 nominal sizes,
manufactured from high quality plastic (UL 94 V1) conforming
to DIN 4102, fire rating class B2, for constant flow
rate control, for use in air conditioning and ventilation
systems, consists of a regulator with set point adjustment,
the regulation mechanism with leaf spring and low friction,
silicone free oscillation damper.
Special characteristics:
– Mechanical system-powered with a control damper
– Very close control accuracy of approx. ± 10 %, relative to
V .
nom in the pressure range between 30 and 300 Pa
– Independent of orientation and maintenance-free
Easy installation into circular ducting; snug fit ensured by a
lip seal.
Tested for function and set to a reference flow rate in the
factory.
Within a flow rate range of > 5 : 1 may be subsequently
accurately adjusted.
Order code
/
Type
VFL 100
1) Factory setting of different flow rate setpoint values can be
offered at extra costs, only for quantity as of 50 per each size
and flow rate.
See table on page 4 for range of values available as a function
of size.
Nominal Reference flow rate V
. 1)
size m3/h l/s
80 35 10
100 70 19
125 100 28
160 150 42
200 290 81
250 450 125
