• Actuation & Instrumentation

    For well over half a century, customers working with applications from the extraordinary to the everyday have come to depend on actuation and instrumentation from Flowserve.

Network Products

Flowserve - Limitorque has been a global leader in the development and deployment of network products for electric valve actuators. Network products include DDC-100 (Modbus), Foundation Fieldbus H1, Profibus DP-V1 and Profibus PA. In fact Flowserve - Lim

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  • Brands:
    Limitorque
  • Applications:
  • Industries:
    Alkylation, Slurry Processing, Hydrotreating, Slurry Transfer, Auxiliary, Crude Handling and Treatment, Leaching Acid, Solvents, Boiler Circulation Systems, Crude Pipeline, Logistics and Tank Farm, Aerospace, Boiler Circulation Systems, Delayed Coking, Miscellaneous Services, Steam Systems, Boiler Feedwater Systems, Desalination, Miscellaneous Services, Steam Systems, Boiler Feedwater Systems, Descaling, General Industries, Utilities, Bleach Chemicals, Dewatering & Water Supply, Nuclear Power, Waste Processing, Boiler Feed, Digester, OEM, Water Handling and Treatment, Boiling Water Reactors Non-safety, Distillation, Plating, Galvanizing and Other Coatings, Water Injection, Catalytic Cracking, Fire Protection - General Industry, Primary Processing, Water Supply and Distribution, Caustic and Chlor-Alkali, Flood Control, Products Pipeline, Agriculture, Condensate Systems, Gas-to-Liquids, Pressurized Water Reactors - Non-safety, Condensate Systems, Gas Treatment, Scale Recycle, Construction, Ground Water Development and Irrigation, Wastewater Collection and Treatment, Acid Transfer, Cooling Systems, HVACI, Heavy Oil and Upgrading, Water Treatment, Cooling Systems, Hydrocraking, Cooling Water - Metals
  • Standards:
  • Misc:

Flowserve - Limitorque has been a global leader in the development and deployment of network products for electric valve actuators. Network products include DDC-100 (Modbus), Foundation Fieldbus H1, Profibus DP-V1 and Profibus PA. In fact Flowserve - Limitorque is the only large valve actuator manufacturer to supply Profibus PA.

Network Options

  • DDC-100 supports up to 250 actuators on a single Modbus redundant loop network
  • DDC-100 networks are controlled via the Master Station II or Direct-to-Host
  • Master Station II DCS connections support Modbus Serial or Modbus TCP/IP
  • Profibus PA  
  • Profibus DP V1 
  • Foundation Fieldbus H1
  • DeviceNet

Network Device Description Files

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Limitorque MX/QX Electronic Valve Actuators Profibus DP/PA Field Unit User Instructions (IOM)

Limitorque MX/QX Electronic Valve Actuators Profibus DP/PA Field Unit User Instructions: Installation, Operation and Maintenance Manual (IOM)

Limitorque DDC-100 Master Station II User Instructions (IOM)

Limitorque DDC-100 Master Station II User Instructions: Installation and Operation Manual (IOM)

Limitorque Accutronix MX Electronic Valve Actuator FF Field Unit User Instructions (IOM)

Limitorque Accutronix MX Electronic Valve Actuator FF Field Unit User Instructions: Installation and Operation Manual (IOM)

Limitorque DDC-100 Modbus Direct-to-Host Programming Guide

Limitorque DDC-100 Modbus Direct-to-Host Programming Guide

Limitorque Master Station III Flier

Product Flier depicting key features and options of the Limitorque Master Station III.

Limitorque MX/DDC-100 Field Unit User Instructions (IOM)

Limitorque MX/DDC-100 Field Unit User Instructions: Installation, Operation and Maintenance Manual (IOM)

Limitorque Master Station II Product Specificiations

Limitorques Master Station II product specifications: The next generation master station is designed and manufactured specifically for use with Limitorque’s line of DDC-100 field units.

Limitorque MX Electronic Valve Actuator DeviceNet Field Unit User Instructions (IOM)

Limitorque MX Electronic Valve Actuator DeviceNet Field Unit User Instructions: Installation, Operation and Maintenance Manual (IOM)

Limitorque MX Electronic Valve Actuator Profibus DTM Software Flier

This flier offers a brief description to the benefits of the Limitorque MX Electronic Valve Actuator Profibus DTM Software.

SMB Electric Actuators

Description: Flowserve Limitorque SMB actuators are designed and built to provide years of dependable service in a wide range of environments. Whether direct-mounted to multi-turn valves, dampers, or sluice gates, or side-mounted to HBC or PT worm gear reducers for qu

Limitorque MX Electronic Valve Actuator

Description: The Limitorque MX is the product entry in the non-intrusive, double-sealed, smart electronic actuator marketplace.

Limitorque L120 Multi-Turn Electric Actuator

Description: The Flowserve Limitorque L120 series multi-turn actuators have a solid record of performance and reliability in many industries, including commercial and nuclear power, oil & gas refining and distribution, and water/wastewater treatment.

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