Rack & Pinion

Quarter Turn Rack and Pinion Pneumatic Actuators

Elfor Controls Quarter Turn Rack and Pinion Pneumatic Actuators are pneumatically operated, quarter-turn rotary, dual rack and pinion compact design.

  • Manufactured in full compliance with the latest requirement of ISO5211 and EN12116.
  • Compact modular design with same body and end caps for double acting and spring return design.
  • Hard anodized extruded aluminum body with honed internal surface.
  • Dual rack and pinion design for compact and lightweight construction, high cycle life, symmetrical mounting position, fast and efficient operation.
  • Modular pre-loaded spring cartridges for a safe and efficient use of actuator.
  • Two independent travel stops for an easy and precise setting (+/- 5°) in both directions.
  • Provisions for mounting solenoid valves and accessories according to Namur VDI/VDE 3845.
  • Mechanical virtual position indicator
  • The shaft is designed to allow manual override by simply removing the position indicator
  • All seals in nitrile rubber are permanently lubricated.

Key features

  • Rack and pinion mechanism
  • Single or double acting versions
  • Temperature range: – 20°C / + 50°C (Standard)
  • Temperature range: – 60°C / +80°C (Low)

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Standard and certifications

Elfor Controls actuators are designed to meet SIL 3 as a “single device”. Elfor Controls offers SIL features according to the IEC61508 and IEC61511 standards. Elfor Controls EC series pneumatic actuators are certified SIL 3 without partial stroke system and SIL 3 with periodic proof testing system.
  • PED 2014/68/EU
  • ATEX 2014/34/EU
  • EAC TR TS 012/2011
  • MACHINERY DIRECTIVE 2006/42/EC
  • IP66/67M according to IEC/EN 60529
  • SIL3 certified (EC61508 and IEC61511) as a “single device”
  • Designed and tested in accordance with EN 15714-3
  • Further certifications are available, please contact Elfor Controls for updated list.

Contact
OFFICE LOCATION
Elfor Controls Srl
Via Bastone 148/150 - 24044 - Dalmine (BG) Italy
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