Butterfly valves for air and gas
VF and VFH butterfly valves are designed for regulation and control of air and gas flow.
Valves can be operated manually using a lever (to setup the high-fire rate of the burner) or automatically using a servomotor (modulating or staged control) or a solenoid actuator (two-stage control).
The setting can be monitored on a graduated scale, this allows precise regulation ratios.
This type of device is suitable for air and gas adjustment in combustion processes, like industrial kilns, drying stoves, smelting and annealing furnaces.
– (AlSi) : DN40 … DN150
– (GGG) : DN40 … DN200
VF : 0 … 500 mbar
VFH : 0 … 150 mbar
VF : 60°C (200°C optional)
VFH : 450°C
VF : EC-type tested and certified according to EN13611
VF : air and non-aggressive gases (Family 1-2-3, EN 437)
VFH : heated air and flue gas
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