Elements and Performance Criteria
- Prepare for work.
- Prepare valves for operation.
- Check operation of valves and valve systems by applying knowledge of valve operation and fundamental operating principles
- Check the valves required for operation against the site specific operating pressures, temperatures, volume, velocities and materials requirements where applicable
- Prepare or sequence valves required for operation, ensuring that they are either closed or opened as required, to regulate the flow of liquids and systems flow rates in a safe and efficient manner
- Check the valve operational integrity to minimise the risk of valve leakages and failures.
- Operate valve systems.
- Conduct operational maintenance
- Clean and lubricate valve stems, threads and other operational parts to ensure the correct operational condition of the valve is maintained
- Evenly tighten valve bolting assembles to prevent product leakage
- Identify valve and regulator faults and take appropriate action
- Isolate jammed or sticking valves from operation, and take appropriate action.
- Isolate and de-isolate valves.