Sticker showing volume
flow rates
Set the volume flow rate
Insert
VFL-ED for square or
rectangular ducting (see
accessory options p. 8-10)
–
Volume Flow Limiters
Type VFL
Aerodynamic damper blade
X
XVFL
04/2014 US K5 – 2.1 – 1
Volume flow limiter for insertion into ducting
Circular, mechanical self-powered controllers for insertion into ducting,
for the quick and easy balancing of constant volume flow rates in ventilation
and air conditioning systems
Unique damper blade edge for acoustic optimization
Simple and quick commissioning on site
Range of volume flow rate setpoints for each nominal size
Precise and simple setting of volume flow rates using a scale
Best accuracy among controllers for insertion
Suitable for low airflow velocities from 2.6 ft/s
Any installation orientation; maintenance-free
Volume flow limiter accessories for square or
rectangular ducting
Accessories to the VFL now include
Square or rectangular duct adaptor for exhaust or supply orientation (p. 8)
Exhaust register for in-wall installation (p. 9)
Exhaust register with fire damper for in-wall installation (p. 10)
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