The pneumatic DR/SC quarter turn actuators operate according to the double piston rack and pinion principle. Double acting or single acting versions are available.

Характеристики

• DR/SC quarter turn actuators are particularly suitable for mounting to butterfly valves or ball valves with a standard connection ISO 5211. DIN 3337 (F03 - F25)
• VDI/VDE 3845 connections (sizes 0 - 4) for mounting accessories and NAMUR control air connections are available

Преимущества

• Housing

  Version A: The aluminium housing is completely ALODUR coated inside and outside. ALODUR coating features:
  - extremely abrasion resistant
  - smooth surface
  (therefore less abrasion at the dynamic components)
  - optimum corrosion resistance
  Version D: The housing is hard anodized inside and outside and PTFE coated to a thickness of 25-30 µm. The end caps are chromatized and also PTFE coated to a thickness of 80-90 µm. This coating is suitable for use with acid or chemical solutions (electro-plating or offshore).

• Multifunction indicator

  The position of the multifunction indicator can be quickly adapted for a parallel or 45° position indicator as well as for actuator positions mounted along or across the pipe. By exchanging the yellow plastic inserts for metal inserts (Eisamet) the multifunction indicator is suitable as a “trigger cam” for external mounting of proximity sensors (without housing) type F25 from P + F. Other externally Mounted proximitysensors (without housing) on request.

• Shaft connection

  The octagonal shape offers the user more flexibility when mounting actuators. They can be mounted to valves with a parallel or diagonal square. All other shaft connections to EN ISO 5211 are possible on request.

• Stroke adjustment

  When mounting the actuator to the valve a lot of time can be saved using the precise cam system for adjusting both end positions ± 20°. All end position adjustments are service friendly without disassembling the actuator.

• Temperature range

  The temperature range of use of the actuators is -40°C to +80°C.

Технические данные1.55 МБ