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Butterfly Valves

Aluminum and cast iron butterfly valves

VF, VFT 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.

Technical Data


VF (AlSi) DN40 … DN150
VFT (AlSi) Rp 3/4 … Rp 2
VFH (GGG) DN40 … DN200

Media Temperature

VF, VFT 60°C (200°C optional)
VFH 450°C

Gas Type

VF, VFT air and non-aggressive gases (Family 1-2-3, EN 437)
VFH heated air and flue gas
Special version for Hydrogen (H2)

Operating Pressure

VF, VFT 0 … 500 mbar
VFH 0 … 150 mbar


VF, VFT EC-type tested and certified according to EN1361


Technical Sheet


Declaration Of Conformity

Elektrogas Catalogue

Further Certificates


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