Valve positioners perform the function of determining the error between the optimum vale position and actual valve position and provide a corrective output. Specialized sensors on the valve stem or shaft correspond to the setpoint from the control system. The positioner's output is sent electrically or pneumatically to a valve actuator, which moves the valve in the corrective direction.
As a control valve accessory and the interface between the control system and valves, positioners play a vital role in ensuring the process loop's performance. The valve positioner adjusts the valves' opening, thereby varying the valve's flow rates, from completely shut or wide open to anywhere in between.
Flowserve Corporation is a leading provider of flow control products and services for the global infrastructure markets, which offers a broad selection of analog, digital, and SMART positioners. For more information about Flowserve positioners in Northern California, contact CTi Controltech. Call them at 925-208-4250 or visit their website at https://cti-ct.com.
