butterfly valve electric butterfly valve handles cf8m

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Classified according to the Control feature
Integration proportional modulating electric actuator
The electric actuator can receive the DC4-20ma analogue controlling signals from the computer, regulator unit, DCS system and so on.The turning angle (or displacement)of the output shaft is in proportion to the input signals.Thus the actuator accomplishes its regulation task automatically.
Remote controlled electric actuator
It receives on-off signal or relay signal, enabling the output shaft to stop at any position. Meanwhile output 4-20ma Dc feedback signal.
ON-OFF type or two positions type
It receives on-off signal and the output shaft only can stop at the full-open or full-closed position and output alarm.

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