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Gas Powered Actuators – LDG
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Gas Powered Actuators – LDG

The Limitorque LDG Direct Gas powered scotch yoke actuator series is specifically designed to be operated by high pressure natural gas, or any other high pressure pneumatic fluid up to a maximum of 105 barg (1500 psig). LDG actuators are ideal for pipeline applications where no external sources of motive power are present and provide a robust heavy duty design and long service life with industry leading maintenance intervals. This makes them the actuator of choice for installation in remote or unmanned facilities.

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Features & Benefits

  • Efficient design based on computational modelling and extensive experimental validation provides high performance with reduced size, weight, and consumption
  • Symmetrical and canted scotch yoke types perfectly fit individual valve torque requirements
  • Rugged heavy-duty fabricated carbon steel build epoxy painted and Electroless Nickel Plated (ENP) cylinders provide maximum protection against corrosion
  • Dust/water proofing to IP66/IP66M and IP67/IP67M according to EN 60529
  • 25-year design life and maintenance intervals up to six years, (depending on service conditions, proper installation, operation and maintenance) exceed industry expectations
  • Modular construction allows easy on site maintenance without special tools and without removal from the valve
  • On-board Medium-High Pressure Control group MHPC provides multiple control functionalities at full rated pressure, thus eliminating need for pressure reducer, reducing system complexity, and limiting gas consumption and exhaust

Specification

  • ISO 9001 and 5211
  • EN 15714, 60529, 13906, 13445 and 12570
  • IEC 61508 SC3
  • ATEX 2014/34/EU

Torque Rating Range: Up to 300000 Nm (221000 ft-lbs)

Pressure Rating:

  • Operating pressure from 10 to 105 barg (145 to 1500 psig)
  • MAWP 105 barg (1500 psig)

Industries

  • Chemicals
    • Petrochemicals
  • Oil & Gas
    • Midstream Transportation

Documents & Support

Related Literature

Limitorque LDG Brochure
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Limitorque LDG Gas-Powered Valve Actuator Brochure
Download

Features & Benefits

  • Features a modular roomy design, corrosion resistant engineered resin, low weight
  • Large range of global IS, NI and mb certificates enables use in all major applications worldwide
  • Application flexibility due to the ability to be easily and directly mounted onto actuators for both rotary and linear applications with multiple switch options
  • Optional continuous position feedback and bus communication
  • Ingress protection ensured by design that meets IP66/67 and NEMA Type 4X standards

Specification

ATEX, IEC, CSA, SIL


Industries

  • Power
    • Conventional Steam
    • Combined Cycle
    • Concentrated Solar Power (CSP)
    • Biomass & MSW
    • Geothermal
  • Chemicals
    • Basic (Organic & Inorganic)
    • Specialty (Fine & Consumer)
    • Biofuels
    • Pharmaceutical
    • Petrochemicals
  • Water
    • Water Management
    • Wastewater
    • Agriculture & Irrigation
    • Flood Control System
  • Oil & Gas
    • Upstream Exploration & Production
    • Midstream Transportation
    • Downstream Processing
  • General Industries
    • Pulp & Paper
    • Steel & Primary Metals
    • Food & Beverage
    • Corn Wet Milling & Ethanol
    • Other Industries
  • Mining


Documents & Support

Related Literature

Worcester Controls PS/PM Series UltraSwitch
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PMV PS/PM Ultraswitch™ User Instructions (IOM)
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