Skip to main content

Flowserve-Flowserve-Non-Intrusive Multi-Turn Actuators - QXM

Non-Intrusive Multi-Turn Actuators - QXM

BRAND: Limitorque

The Flowserve Limitorque QXM, limited multi-turn, non-intrusive electronic valve actuator is designed for limited, short stroke, light torque rising stem valve applications such as choke or control valves in the power, oil & gas, and water industries.


  • General Industry
  • Chemicals
  • Water
  • Oil & Gas
  • Power

industry sectors

  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Food & Beverage
  • Corn Wet Milling & Ethanol
  • Other Industries
  • Basic (Organic & Inorganic)
  • Specialty (Fine & Consumer)
  • Biofuels
  • Pharmaceutical
  • Water
  • Waste Water
  • Agriculture
  • Water Management
  • Upstream Exploration & Production
  • Midstream Transportation
  • Downstream Processing
  • Nuclear
  • Conventional Steam
  • Geothermal
  • Combined Cycle
  • Concentrated Solar Power (CSP)
  • Biomass and MSW
  • All global explosionproof certifications
  • Meets pertinent European Directives (CE mark)
  • Designed to meet EN-15714
  • AWWA C540
Design Range

Torque Rating Range: From 18 to 250 ft-lb output torque

Features & Benefits
  • Non-intrusive electronic design
  • Weatherproof, explosion proof, and submersible applications
  • 100% repeatable and redundant absolute encoder for position sensing
  • 3-phase, 1-phase, and DC motors
  • Lower operating costs compared to pneumatic actuators, with the added advantages of electrical operation
  • Greater process control from accuracy that meets and exceeds EN 15714 (Class D) and IEC 60034 standards for modulating service
  • Increased reliability via electro-magnetic noise protection of analog process control signals, electronic torque switch

Modulating Service
QXM is available for modulating applications up to 1800 starts per hour

Network Service
QXM is available for network applications that utlize Modbus, Foundation Fieldbus, Profibus DP or PA, DeviceNet, and HART

Linear Control Valve Service
QXM is available for use with control valves that may require exacting position utilizing a linear thrust base.


Flowserve Limitorque offers practical product training at our global automation headquarters in Lynchburg, Va., and our state-of-the-art valve automation center in Houston. Taught by qualified instructors in classroom settings, these three-day courses emphasize hands-on training. Key topics include the principles of actuator functionality as well as actuator setup and commissioning, maintenance and troubleshooting. View available courses and dates.


Our global expertise and local service centers ensure that you stay up and running. Learn more about our services.

Learn More

Use Flowserve VirtualPlant 3D models of various plant types to help you 'see' our capabilities in key industrial applications.

Explore Now