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Features
  • For On-Off and modulating
  • Strong, compact actuators for large valves
  • Double acting or single acting with spring return
  • Pre-tensioned springs for safety
  • Connection accessories according to VDI/VDE3845 NAMUR
  • Mounting kits for all types of quarter turn valves
  • Scotch Yoke principle gives high torque in the end positions
  • Precise control, smooth travel in the end positions
  • High reliability
  • High efficiency, low air consumption
  • Housing in anodized Aluminum
  • Temperature range: -20° to 80° C (-4° to 176° F)

Specifications

Actuator Type

  • Double-Acting
  • Spring Return

Approvals & Certifications

  • ATEX Directive 94/9/EC (Class II 2 GD)
  • CE
  • PED 97/23/EG

Bearing Material

  • Polymer Material

Enclosure, Body Material

  • Spring Housing: Aluminum (Powder-Coated)

Materials of Construction

  • End Plat (Powder-Coated), Cylinder, Upper, Lower, Marking Washer (Anodized): Aluminum
  • Indicator: Polymer Material
  • Middle Washer, Support Washer: Stainless Spring Steel
  • Scotch Yoke: Steel (Corrosion Protected)
  • Spacer, Spacing Sleeve, Guide Pin: Stainless Steel
  • Support Element, Support Band: PTFE
  • Support Element: Polyoxymethylene (POM)

Maximum System Pressure

  • Double-Acting - psi: 100 (kPa: 689.5, bar: 7)
  • Spring Return - psi: 87 (kPa: 600, bar: 6)

Nut & Bolt Material

  • Lock Nut: Steel (Zinc-Plated)
  • Nut: Nylon (Zinc-Plated)

O-Ring Material

  • Nitrile

Operating Time

  • < 10 seconds

Piston Material

  • Aluminum
  • Piston Roller: Steel (Hardened)

Plug Material

  • Sealing Plug: Nitrile

Ring Material

  • Guide Ring: Aluminum (Anodized)
  • Retaining Ring: Spring Steel (Corrosion Protected)
  • Support Ring: Polymer Material

Screw Material

  • Adjusting Screw, Locking Screw, Pre-tensioning Screw: Steel (Zinc-Plated)

Seat / Seal Material

  • Plane Sealing: Nitrile (Corrosion Protected)
  • Plane Sealing: Steel (Corrosion Protected)

Shaft Material

  • Driving Shaft (Chemically Zinc), Piston Shaft (Hardened): Steel

Spring Material

  • External, Internal: Spring Steel (Corrosion Protected)
  • Spring Steering: Aluminum

Temperature Range

  • -20° to 80° C (-4° to 176° F)

Torque

  • End Plate Screw: 76 Nm
  • Fixing Screw Against Console: 125 to 170 Nm
  • Lock Nut for Adjustment Screw, DA & SR: 120 Nm

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