Pneumatic actuator - DP | ARI

Name: Pneumatic actuator - DP | ARI
Brand: Ari-Armaturen
SKU: 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