Mark 15 Series

Top mounted pneumatic positioner
The Mark 15 Series valve positioners is a line of compact instruments which incorporates a single-axes, force-balance principle of operation to ensure accurate and stable control valve positioning. In all cases, including bottom-loading applications, a MK15 is mounted directly on the top works of the valve, with no external levers or other exposed mechanisms. Each positioned receives a single from a control instrument, and using an air supply as high as 45 psig (3,4 bar), the positioned strokes the valve actuator to the required position