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Butterfly Valves

Aluminum and cast iron butterfly valves

VF, VFT, and VFH butterfly valves regulate and control air and gas flow by design.

Valves can be adjusted either manually or automatically. In manual, a valve lever can set the fire rate of the burner. In automatic, fire rate can be set via a servomotor (modulating or staged control) or a solenoid actuator (two-stage control).

The setting can be monitored on a graduated scale, allowing for 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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