The Jamesbury VPVL350SR4 5BD AMI331HA02SRM valve actuator positioner is a control accessory designed to fine‑tune the position of a Jamesbury valve actuator. It accepts a control signal and adjusts actuator travel to achieve precise valve opening and closing, improving control loop accuracy and repeatability. This specific configuration is identified by the VPVL350SR4, 5BD, and AMI331HA02SRM part numbers from Jamesbury.
