Flowserve Corp. has further developed enhancements to the Flowserve Limitorque MX valve actuator. The newest Limitorque MX has been re-designed to provide users with a longer operational life in even the most rigorous and extreme applications. Available for use on a wider variety and size of 360-degree, multi-turn valves than ever before, the globally certified device meets most world utilization standards. Key improvements to the MX include a patented absolute encoder with increased span, improved diagnostics capability, and built-in self-test. The Limitorque MX is also double-sealed, allowing for containment of any leakage within the terminal compartment. One of the key operational advancements in the Limitorque MX has been enhancement to the special absolute encoder. The “smart” and flexible encoder configuration helps simplify valve-automation through configuration/setup, normal operations, diagnostics, and troubleshooting. Another key enhancement to the newest encoder model is that the drive sleeve turns have significantly increased. While the initial MX model had a span of 1340, the Limitorque MX has now been improved to allow for a span of over 10,000 turn options.