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Valve positioning systems

Overview

Positional control or proportional valve positioning systems are available using either a pneumatic impulse signal (e.g. 0.2 to 1 Barg) or an electrical signal (normally 4 to 20 mA). These systems are designed either to have customer defined pre-set positions or to have full control of the valve between the open and closed positions. Valve positioning systems can be used in conjunction with on/off production or ESD controls and can be utilised for a partial test system e.g. using digital controllers. PLC controllers can also be incorporated to provide complete automatic valve positioning control via input from pressure transmitters.


Applications

Precise positioning of quarter-turn and linear valves.


Operating Ranges

Electrical Supply (VAC)

  • 380/440V – 3 Phase – 50/60 Cycles
  • 110/240V – Single Phase 50/60 Cycles

Electrical Supply (VDC)

  • 24VDC 50W or 100W

Communications

  • Command signal: 4-20mA
  • Re-transmission Signal: 4-20mA
  • Protocol: 4-20mA HART or Foundation Fieldbus

Accuracy

  • Positional: Better than ±0.5%
  • Repeatability: Better than ±0.5%

Temperatures

  • Low: -60 to +60°C  (-76 to +140°F)
  • Standard: -20 to +60°C  (-4 to +140°F)

Key Features & Benefits

  • The same simplicity and low cost of installation as provided by electric actuators
  • Fail safe or fail last operation
  • The power, precision and compact size of high pressure hydraulic systems
  • Industry-leading  control options  and system diagnostics
  • Zero emissions
  • Environmentally responsible via low power, solar powered and biodegradable fluid options

Additional Resources

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Valve Actuators Control Systems Other Solutions
Quarter-Turn - Linear - Gas-Over-Oil - Direct Gas - Subsea - Electric Self-Contained Electric-Hydraulic - Positioning - HPUs - Turbine Bypass - HIPPS - ASV PST Controller - TVC Positioner - Gas Odourisers - Pipeline Strainers

England
Paladon Systems Ltd

England

Tel: +44 (0)1604 880700
Fax: +44 (0)1604 882424
info@paladonsystems.com

Scotland
Paladon Systems Ltd

Scotland

Tel: +44 (0)1224 772442
Fax: +44 (0)604 882424
info.scotland@paladonsystems.com

Italy
Paladon Italia Srl

Italy

Tel: +39 0383 878524
Fax: + 39 0383 878042
info.italia@paladonsystems.com

Malaysia
Paladon Systems Sdn Bhd

Malaysia

Tel: +603 5614 3211
Fax: +603 5614 4511
info.asiapacific@paladonsystems.com

Russian Federation
Paladon SDT

Russian Federation

Tel: +7 495 735 28 07 (08) (09)
Fax: +7 495 735 28 07 (08) (09)
info.russianfederation@paladonsystems.com
United States
Paladon Americas

United States

Tel: +1 855 725 2366
Fax: +1 832 310 2370
info@paladonamericas.com


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