butterfly valve / lever / control / for gas
Elettromeccanica Delta S.p.A.
Max.: 450 °C (842 °F)
Min.: 60 °C (140 °F)
Max.: 500 mbar (7.25 psi)
Min.: 0 mbar (0 psi)
Max.: 200 mm
Min.: 40 mm
VF and VFH butterfly valves are intended for the regulation and control of air and gas stream. The valves might be worked physically by utilizing a lever (to set up the high-fire rate of the burner) or naturally utilizing a servomotor (adjusting or organized control) or a solenoid actuator (two-stage control). The setting could be observed on a graduated scale, this permits exact regulation proportions.
This kind of gadget is suitable for air and gas alteration in ignition courses of action, in the same way as mechanical ovens, drying stoves, purifying and tempering heaters.
The technical specifications of VF (Alsi) is Dn40 Dn150 and VFH(GGG) is Dn40 Dn200. The operating pressure of VF ranges between 0 to 500 bars and VFH ranges from 0 to 150 bars. VF supports temperature of 60°c, whereas VFH supports 450°c. VF includes air and non-forceful gasses (Family 1-2-3, EN 437) and VFH incldues warmed air and vent gas. VF EC-type is tested and certfied to maintain standards of EN13611.