The Mark 15 Series is a line of compact instruments which incorporates a single-axis, 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 topworks of the valve, with no external levers or other exposed mechanisms. Each positioned receives a signal 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.
Single-axis, force-balance of operation, ensures accurate and stable positioning
Feedback circuits direct the actuator’s position, ensuring adherence to the control instrument signal
Accommodates a wide variety of valve strokes and instrument spans
Direct-mounted to top of pneumatic actuator
Offers a smaller, more streamlined package with no external linkage