Extended Cycle Life
(1 million cycles)
  • Low Friction Bearings
  • Polished Bore
  • Precision Machined Gears
  • Epoxy Coated Springs
  • Dry or Lubricated Air
Exterior Coatings
  • Tested to ASTM B117-73 (500 hrs. salt spray)
  • Anodized body (ASTM 6063) or nickel plated
  • End covers; epoxy-polyester coated or nickel plated
Mounting Styles
  • NAMUR dimensions for accessories
  • ISO dimensions for valve mounting
  • Shaft variations available for direct mounting
  • Female star drive output shaft
  • Independent travel stops ±4º each direction
Safety
  • Precompressed spring cartridge
  • Blowout proof shaft
  • Visual indicator
Specifications
  • Operating Pressure: 40 to 120 psig
  • Temperature (normal operating): - 4º F to 180º F
  • Media: Dry or lubricated air;
    • non-corrosive and inert gas;
    • light hydraulic oil
  • Lubrication: Factory lubricated for normal lifetime
  • Rotation: 90º
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Unit of Measure
Items
Durair II Pneumatic Actuator

Durair II Pneumatic Actuator
Durair II Pneumatic Actuator

Durair II Pneumatic Actuator
Durair II Pneumatic Actuator

Durair II Pneumatic Actuator
Durair II Pneumatic Actuator

Durair II Pneumatic Actuator
Durair II Pneumatic Actuator

Durair II Pneumatic Actuator
Volume N/A 2.3 in³ N/A 7.0 in³ N/A N/A 14.0 in³ N/A
Open Speed N/A 0.5 sec N/A 0.6 sec N/A 0.6 sec N/A 0.6 sec N/A 0.7 sec
Close Speed N/A 0.5 sec N/A 0.6 sec N/A 0.6 sec N/A 0.7 sec N/A 0.9 sec
Accessories N/A Limit Switch Positioner Solenoid Valve
Body (No. 1)
N/A Extruded Aluminum Alloy (ASTM 6063T6)
Qty. 1
Piston (No. 2)
N/A Aluminum Alloy (Die Cast) (ASTM B179)
Qty. 2
End Cover (No. 3)
N/A Aluminum Alloy (Die Cast) (ASTM B179)
Qty. 2
Pinion (No. 4)
N/A Steel (Nickel Plated) (ASTM A105)
Qty. 1
Key (Pinion Anti Ejection) (No. 5)
N/A Nylon
Qty. 2
O-Ring (Pinion, bottom) (No. 6)
N/A Nitril (NBR)
Qty. 1
O-Ring (Pinion, top) (No. 7)
N/A Nitril (NBR)
Qty. 1
Retaining Ring (No. 10)
N/A Spring Steel
Qty. 1
Spring Cartridge (No. 11)
N/A High Alloy Spring Steel
Qty. 12 max.
O-Ring (Piston) (No. 12)
N/A Nitrile (NBR)
Qty. 2
Piston Bearing (No. 13)
N/A Acetal Resin (LAT LUB 731 320AT +20% PTFE)
Qty. 2
Cover Gasket (No. 14)
N/A Nitrile (NBR)
Qty. 2
Nameplate (No. 15)
N/A Aluminum
Qty. 1
Cap Screw (No. 16)
N/A Stainless Steel (18-8)
Qty. 8
Nut (End Stop) (No. 17)
N/A Stainless Steel (18-8)
Qty. 4
Washer (No. 18)
N/A Stainless Steel (18-8)
Qty. 4
O-Ring (End Stop) (No. 19)
N/A Nitrile (NBR)
Qty. 4
Screw (End Stop) (No. 21)
N/A Stainless Steel (18-18)
Qty. 2
Thrust Washer (Pinion) (No. 23)
N/A Stainless Steel (18-8)
Qty. 1
Thrust Bearing (No. 24)
N/A Nylon
Qty. 1
Bearing (Pinion, Bottom) (No. 25)
N/A Nylon
Qty. 1
Bearing (Pinion, Top) (No. 26)
N/A Nylon
Qty. 1
Bearing (Piston) (No. 27)
N/A Nylon
Qty. 2
Screw (Piston Stop) (No. 28)
N/A Stainless Steel (18-8)
Qty. 2
Weight N/A 0.92 lbs N/A 2.35 lbs N/A 2.64 lbs N/A 3.5 lbs N/A 4.0 lbs
Note N/A All are factory installed and tested to manufacturer's specification.