The electro-mechanical device that controls your process flow remotely.
A motor-operated valve (MOV) is a valve that uses an electric actuator to open, close, or throttle the flow of a process fluid — gas, oil, water, or chemical — in response to an electrical signal from a control system.
In industrial processes, MOVs eliminate the need for manual valve operation, allow remote or automated flow control, and provide a feedback signal to the SCADA system confirming valve position.
When an MOV is improperly wired, miscalibrated, or not correctly set up for the control system, the result can be process flow errors, valve seat damage, or a safety event.
From receiving to commissioning and beyond.
- Mechanical and electrical installation: actuator mounting, coupling to the valve, conduit and cable routing.
- Power and control wiring: 120VAC, 240VAC, 480VAC three-phase motor circuits and control circuits to CEC requirements.
- Limit switch calibration: open and close limit switches set to correct valve travel positions.
- Torque switch setting: torque limits set to protect valve seats and the actuator gearbox.
- Control signal configuration: 4-20mA positioner calibration, discrete on/off control, MODBUS/PROFIBUS integration.
- Commissioning and functional testing: full stroke test with control system verification — open, close, and ESD (emergency shutdown) verification.
- MOV maintenance: periodic inspection, lubrication, limit switch verification, and overhaul.
Experience across the major valve actuator manufacturers.
Our technicians are familiar with the local control units (LCUs), setting procedures, and fault diagnostics for all major brands.
- Rotork: IQ3, IQT, Q, GP, and Skilmatic series.
- AUMA: SA, SQ, SGM, and multi-turn and quarter-turn series.
- EIM (part of Roper Technologies): M series and EC series.
- Biffi: scotch-yoke and multi-turn electric actuators.
- Emerson (Bettis/El-O-Matic).
An MOV is both an electrical device and a process device.
Standard electrical work and MOV commissioning aren’t the same thing.
Correct MOV commissioning requires: Pro Call Electric brings both electrical and process understanding to every MOV project.
- Understanding the process — what the valve controls, what happens if it fails open or closed, and what the ESD requirements are.
- Knowing how to read and apply the actuator’s torque-speed-position specification to the specific valve it drives.
- Interfacing correctly with the control system — whether that’s a DCS, PLC, or a local panel.
- Verifying actual valve travel positions, not just actuator display positions.
The right team for instrumentation-class electrical work.
- Industrial process experience: we understand the application, not just the wiring.
- Major brand familiarity: Rotork, AUMA, EIM, Biffi — we know the setup procedures and common failure modes.
- Control system integration: SCADA/PLC interface configured and verified, not just wired and left.
- ISNET and SECOR: approved for O&G and industrial process sites.
- Complete documentation: commissioning records with limit switch settings, torque settings, and control configuration.
