What information is needed to replace an electric valve actuator?

Provide the valve type and size, existing actuator model if available, required output torque or thrust, mounting interface, supply voltage, control signal, feedback requirement, duty cycle and required fail action.

What is the difference between on-off and modulating electric actuators?

On-off actuators drive the valve between defined open and closed positions. Modulating actuators accept a control command such as 4-20 mA or 0-10 V and position the valve proportionally for regulation.

Can a project specify Rotork, AUMA or SAMSON for an actuator package?

A project may specify a preferred brand or existing actuator model. Jinkon can review the required torque, interface, voltage and controls to confirm integration feasibility before quotation. These names are third-party trademarks and do not indicate affiliation or authorized distribution.

Electric Valve Actuator Replacement & Integration Guide

Electric valve actuator replacement should be confirmed from the complete valve and control requirement—not by mounting size alone. A correct package matches the output torque or thrust, mechanical interface, voltage, command signal, feedback, operating duty and required fail action.

1. Start with the valve and mechanical interface

Identify the valve type, nominal size, pressure and service medium. For quarter-turn butterfly and ball valves, provide the required operating torque and mounting details such as an ISO 5211 interface, stem dimensions and available clearance. For linear control valves, provide the required stroke, thrust and linkage details.

2. Choose the required function

Function	Typical requirement
On-off / open-close	Drive the valve between defined open and closed positions; often includes open/close limit switches.
Modulating / regulating	Position the valve in response to a variable command for flow, pressure or process control.
Position feedback	Transmit valve position to the control system for monitoring or closed-loop operation.
Manual override	Allow local operation when a project requires it.

3. Confirm the electrical and control inputs

State the supply voltage and phase, enclosure or environmental requirement, required control signal and feedback signal. Common project requests include 4-20 mA and 0-10 V modulating commands, dry-contact open/close control, position feedback and limit switches. Include the required duty cycle and any emergency or fail-position requirement.

4. Projects specifying Rotork, AUMA or SAMSON

If a project specifies Rotork, AUMA, SAMSON or an existing actuator model, send the model number, datasheet and valve details with the RFQ. Jinkon can review the requirements and provide or replace an actuator package when the torque, interface, control function and supply availability are confirmed.

Trademark notice: Rotork, AUMA and SAMSON are third-party trademarks. References on this page describe customer-specified or replacement requirements only; they do not indicate affiliation, authorization or exclusive distribution.

5. Submit a complete actuator RFQ

For faster technical confirmation, send the valve data sheet or photographs, current actuator nameplate, valve size, torque or thrust, mounting interface, voltage, open-close or modulating function, signal type, feedback, quantity and destination.

Need an electric actuator package?

Jinkon supports butterfly valve, ball valve and control valve projects with technical selection and quotation support.

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