Valve Automation for Remote Unmanned Facilities

Remote and unmanned facilities—wellpads, pipeline compressor stations, offshore platforms, and subsea systems—require valves that operate reliably without onsite personnel. Automated valves with remote monitoring are the foundation of these installations.

Actuator Power Sources for Remote Sites

Where utility power is unavailable, solar panels with battery backup power SOV coils and PLC systems. Gas-over-oil hydraulic systems harvest line pressure for actuator power. Spring-return actuators with stored energy provide fail-safe closure during power outages.

Solar/battery: suitable for quarter-turn actuators with low power demandGas-hydraulic: common in gas gathering and transmissionStored-energy hydraulic: ESD valves at unmanned wellpadsPneumatic from line pressure: lowest installation cost where gas is available

Remote Monitoring and Control

RTU (remote terminal unit) or PLC systems interface with actuated valves via hardwired discrete and analog I/O. Valve position, actuator pressure, and fault status are transmitted via satellite, cellular, or licensed radio SCADA to a central control room.

Self-Diagnostics and Partial Stroke Testing

Smart positioners and actuator-mounted electronics perform automated partial stroke tests on ESD valves at programmed intervals. Test results are logged and transmitted remotely, eliminating the need for personnel to travel to site for valve function testing.

Program partial stroke test frequency based on risk and valve criticalitySet remote alert thresholds for torque, stroke time, and leakageInclude valve data in SCADA historian for trend analysisPlan annual site visit for full-stroke test and physical inspection

Cybersecurity Considerations

Remote valve control systems are potential targets for cyber attack. Implement network segmentation, authentication, encrypted communications, and access logging for all remote valve control interfaces per IEC 62443 or equivalent cybersecurity standards.