Pneumatic Actuators

A211 Series Pneumatic Actuators

PA032 – PA400
Working Temperature,
ST -20 ºC ~ +80 ºC
LT  -40 ºC ~ +80 ºC
HT -20 ºC ~ +150 ºC
Torque Range,
Double Acting 9 - 9767 Nm
Spring Return 6 - 6584 Nm


A211 Series Pneumatic Actuators

A211 Series pneumatic actuator has an externally adjustable travel stop arrangement that permits the opening of the actuator to be restricted to any position between full close (0±5º) to full open (90±5º) position by rotating the limit adjustment nut in a clockwise or counterclockwise direction until the desired stroke (double and single acting possible) reached.
• Compact design
• Available in 18 different sizes
• Spring return or double-acting versions
• High and Low-temperature executions
• Common end caps on SR and DA
• Namur accessory mounting configuration
• Bi-directional stroke adjustment bolts
• Operating media - clean, dry air or non-corrosive gases
• Modular preloaded spring cartridges
• Durable, trouble-free operation
Namur or panel type solenoid valves, limit switch boxes, Namur type block & bleed valves, speed regulator valves, filter regulators, emergency release lever manual gearboxes
Proval A211 series pneumatic actuators are also available with a wide range of quarter-turn ball, butterfly, or plug valves according to process requirements. 
actionneurs pneumatiques , attuatori, Πνευματικοί Ενεργοποιητές,  pneumatische stellantriebe



Technicial Specifications

Anodized aluminium extrusion
Optional epoxy or PFA/ETFE Coating for corrosive environments
End Caps
Epoxy coated aluminium die casting
Optional PFA/ETFE coating for corrosive environments
Pinion (Shaft)
Galvanized or electroless nickel-plated (ENP) carbon steel
Optional AISI304 stainless steel
NBR (-20 °C ~ +80 °C)
Optional Viton (-20 °C ~ +150 °C), Silicone (-40 °C ~ +80 °C)
A2 Stainless Steel
Bearing Elements
Engineering Plastics (POM)
Cartridge Springs
Cataphoresis coated spring steel and POM holder
Anodized aluminium die casting


Document Name Document Language Document Size Document Link
A211 Series Pneumatic ActuatorsEN572.25 Kb
Declaration of Conformity 2014/34/EU (ATEX)EN365.97 Kb
Assesment of Compliance EN 15714-3:2019EN364.16 Kb