Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI
Pneumatic actuator - DP | ARI

Pneumatic actuator - DP | ARI

The Pneumatic Actuator - DP | ARI is a versatile and compact actuator designed for efficient control in various applications. It features a rolling diaphragm and can be mounted in any position, accommodating a maximum air supply pressure of 6 bar and a travel range of up to 120 mm. The actuator is available in direct or reverse acting models (DP32-34) and includes a burnished stem protected by a bellow, maintenance-free O-ring sealing, and flexible guiding. It operates effectively in ambient temperatures from -10°C to +80°C, with an optional range of -50°C to +80°C for specific models. The actuator offers two operating modes: spring closes or opens on air failure, ensuring reliable performance in different scenarios. Constructed with high-quality materials, the stem is made from X20Cr13+QT, 1.4021+QT, or 1.4571, while seals are available in EPDM50, 42CR, and NBR. The diaphragm is crafted from NBR with webbing, and the housing is available in DD13+QT or 1.0335+QT, with an optional C5-M coating for enhanced corrosion resistance. The DP series provides various thrust and performance options, with models like DP30 offering a thrust of 2000 N and DP34T reaching up to 47100 N. Dimensions and weights vary across models, with the DP30 having a diameter of 168 mm and weighing 5 kg, while the DP34T has a diameter of 405 mm and weighs 116 kg. Accessories include a top-mounted handwheel, solenoid valves, throttling valves, check valves, lock-up valves, air sets with gauges, limit switches, and position indicators. Special designs are available for sub-zero temperatures, aggressive environments, and space-saving installations. The DP series actuators are designed for direct mounting on control and stop valves, converting pneumatic pressure into linear travel with short lifting times of 1-10 seconds, ensuring efficient operation in various industrial settings.

Datasheet and documents

Description

General Features:

  • Compact design with an actuator featuring a rolling diaphragm.
  • Mountable in any position.
  • Maximum air supply pressure: 6 bar.
  • Travel: up to 120 mm.
  • Direct or reverse acting for models DP32-34.
  • Burnished stem protected by a bellow.
  • Maintenance-free O-ring sealing with flexible guiding.
  • Operational ambient temperatures: From -10°C to +80°C (for DP32-34Tri, optional -50°C to +80°C).
  • Favorable size/performance ratio.


Operating Modes:

  • Spring closes on air failure (stem extending by spring).
  • Spring opens on air failure (stem retracting by spring).


Materials and Construction:

  • Stem: Made from materials like X20Cr13+QT, 1.4021+QT, 1.4571.
  • Seals: EPDM50, 42CR, NBR.
  • Spring plate: FSt (Fe/Zn8M), FSt (Fe/NiP50).
  • Diaphragm material: NBR with webbing.
  • Housing: DD13+QT or 1.0335+QT, with optional C5-M coating for added corrosion resistance.


Thrust and Performance:

  • DP30: Suitable for spring range between 2.2 to 4.5 bar with a thrust of 2000 N.
  • DP32: Suitable for spring range between 0.2 to 3.8 bar with thrusts ranging from 490 N to 4900 N.
  • DP33: Higher thrust options with spring range from 0.2 to 4.0 bar and up to 8970 N.
  • DP34: Larger thrust options with a spring range from 0.2 to 4.0 bar with thrust up to 18840 N.
  • DP34T: Enhanced for higher performance with dual spring design, reaching 47100 N thrust.


Dimensions and Weights:

  • DP30: Diameter of 168 mm with a weight of 5 kg.
  • DP34T: Diameter of 405 mm with a weight of 116 kg.
  • DP35: Diameter of 755 mm with a weight of 325 kg.


Accessories:

  • Top-mounted handwheel for manual operation.
  • 3/2-way solenoid valves with manual operating device.
  • Throttling valves to increase operation time.
  • Check valve with throttling function.
  • Lock-up valve for holding air in the actuator during air failure.
  • Air set with gauge to reduce air pressure and remove dust and water droplets.
  • Limit switches (electrical, mechanical, inductive) for denoting the end of travel.
  • Position indicators for analog feedback of valve positions.


Special Designs:

  • Actuators for sub-zero temperatures (-40°C to +80°C).
  • Actuators for aggressive environments.
  • Short design actuators and short design handwheels for space-saving installations.


Application and Setup:

  • The DP series actuators are designed to be mounted directly on control valves and stop valves.
  • The actuators convert pneumatic pressure into linear travel, offering short lifting times (1-10 seconds) on air supply or air failure.

Accessories & Compatibility