Partial Stroke devices are used for many different applications. One of these are to secure the integrity of Riser valves. Field test have shown that if a valve is periodically
exercised using a partial stroke device there will be far less chance that it will be stuck the day it's really needed.

The hydraulic actuated Riser valve is equipped with our Val Controls IDC24-AFL solution. It will perform periodically partial stroke and solenoid tests either through fixed date and time or controlled by DCS.

All information can be downloaded and stored for future trend analysis. For this project the customer requested a local control pane with an on/off selector and push buttons to start thepartial stroke test.