Select an electric valve by the process conditions and valve construction, then check supply voltage, control mode, output capability, duty rating and failure behaviour. An electric actuator is not automatically a modulating or fail-safe actuator.
Confirm the complete valve-and-actuator package rather than comparing only motor power or nominal pipe size. Keep main power, command input and position feedback as separate specification items.
For modulating duties, compare pneumatic and electric control valve actuation; for capacity checks, use the Cv/Kv sizing guide.
Specify voltage, AC or DC supply, frequency and phases where applicable, available power, control input, feedback and communication requirements. Confirm local/remote operation and wiring arrangements against the selected actuator rather than assuming one standard connection.
No. Confirm the actuator and control module are intended for the required modulating duty, operating frequency and thermal load. Switching capability or an intelligent label alone does not establish suitable continuous-control performance.
Not necessarily. Confirm whether it stops, holds or uses a specific spring or stored-energy arrangement for a defined action. Specify power-loss and signal-loss requirements separately and verify the complete assembly under the agreed duty.
No. Check thrust or torque, travel, shaft or stem connection, allowable mechanical loads, duty rating, control interfaces and environmental requirements. A matching mounting pattern does not prove that the actuator can operate and protect the valve correctly.
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