SR SL ST
Solenoid actuator for butterfly valves
Solenoid actuators 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.
Adjustments
two regulating screws for minimum and
maximum flow rate adjustment
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Operating
time (0 - 90°)
SR: 1s opening/closing
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SL: ~4s opening / 1s closing
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ST: ~4s opening/closing
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Voltage
rating
230VAC 50/60Hz
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110VAC 50/60Hz
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Approvals
Comply with 2004/108/EC and 2006/95/EC directives
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