Error! You must have javascript enabled to use this form. Please enable Javascript in your browser. Valve Positioners Market Analysis and Growth Potential Report 2019: Emerson, Flowserve, Siemens, Rotork A valve positioner is a device that adjusts the valve actuator's position based on a control signal. View full press release Your Name: Your Email: To Email: To BCC: Subject: Comments: We respects your privacy, the information you entered above will not be used to send unsolicited email, and will not be rented or sold to a 3rd party. Your contact information will be shared with the recipient of this message - Privacy Policy Send