Butterfly valve with solenoid actuator
SR/SL series
Elettromeccanica Delta
for butterfly valves
Solenoid actuators SR/SL/ST are designed to operate VF
and VFH butterfly valves.
When the coil is not energized the inner spring pushes
down the plunger and, by means of a gear mating ,
shifts the connected valve to the minimum opening
position.
When the coil is powered the plunger moves up fast
(SR) or slowly (SL/ST), shifting the valve to the maximum
opening position.
This type of device, connected to VF and VFH butterfly
valves, is used in two-stage control of gas and air flow
in combustion processes.
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