ELEKTROGAS – MANUALE TECNICO
3-10
Functioning and
application
- In case of combustion process being
regulated
by
combustive
air
modulation, VF valves with servomotor
can be used, coupled to another
butterfly valve manually operated
(available graduated scale and locking
screw) to setup high-fire rate of the
burner.
- In case of combustion process with
excess of air or gas, VF butterfly valve
can be used, coupled to a Lambda
sensor for ratio correction.
- In case of combustion process with
pre-heated air, VFH butterfly valve can
be used MZ servomotor.
WARNING
Location and mode of installation must be in compliance with local rules in force.
VF..MZ
Fig. 1
Fig. 2
Fig. 3
VF..MZ
VFH..MZ
VF..MB
