Limitorque Electric Actuator Sizing

Rotork actuators are compatible with a wide range of communication and process control systems.

Limitorque electric actuator sizing.

The qx design builds on more than 20 years of proven mx technology to provide all the user preferred features in a quarter turn smart actuator package. The qx is the flowserve limitorque product for the quarter turn valve market up to 1500 ft lb. Mx series 05 through 150 electric actuators can be used in applications requiring up to 1 700 ft lb. Valve torque before the actuator can be sized for any given valve application the amount of torque required by the valve must be determined.

Today all heavy duty electric actuators use some device that limits the torque in order to safely operate automated valves and protect people and property. You ll get specific recommendations based on the flowserve team s decades of industry leadership and practical experience. The relationship between valves and actuators. Flowserve limitorque mx actuators flowserve limitorque mx actuators have been engineered to accommodate today s wide variety of valve designs and to meet international standards for valve and actuator interfaces.

Expressed as a fraction distance in inches number of threads lead is the number of revolutions or turns around the stem for an increment of travel in inches. Lynchburg this course details smb actuator selection and provides a step by step sizing process for multi turn and quarter turn applications. Store actuators in a clean dry protected warehouse away from excessive vibration and rapid temperature changes. Dure for sizing actuators to flowserve worcester controls ball valves.

Limitorque has evolved over almost 90 years since its strategic introduction of a torque limiting design. Storage less than 1 year actuators are not weatherproof until properly installed on the valve or prepared for storage. To help you make informed decisions about electronic actuators flowserve limitorque has compiled four quick reading white papers inspired by real world user needs and challenges. The basics of electric actuators.

The flowserve limitorque qx non intrusive electric actuator is designed for a wide range of environmental applications in power oil gas and water industries. Actuator sizing pitch is the number of threads linearly along the stem. Beyond that range any of the multi turn products can be assembled with wg or hbc 90 worm gearbox operators to. These types of limitorque electric actuators are available for operations such as open close modulating network and rotary service.

For longer term storage contact limitorque for procedures and recommendations. Electric actuator ranges also include the awt for simplified control duties rom rompak and q direct drive actuators for small quarter turn valves.