Flowserve Corp. has added 24- to 48-volt DC-input power for all sizes of Flowserve Limitorque QX electronic valve actuators. The QX offers reliability for remote applications that require an uninterrupted power supply but cannot use single- or three-phase AC volts. The electronic controls in the Limitorque QX actuators with DC volt capability are 100% digital with no moving parts, making them more reliable than electromechanical devices. Additionally, the QX software provides a torque boost to overcome excessive valve torque when pulling the valve out of the seat. The actuator is available in five distinct sizes from 100 ft-lb to an industry-leading 1,500 ft-lb.

The Limitorque QX is a quarter-turn and limited multi-turn, smart electronic valve actuator designed to enhance safety and reduce downtime through improved diagnostics, built-in self-test features, and LimiGard fault protection capabilities. Optional Bluetooth wireless connectivity with a range up to 10 meters is available. When used with Flowserve Limitorque Dashboard Windows-based software, diagnostic information is easily transferred to a PDA, laptop computer, or cell phone. (www.flowserve.com)