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AD / AS SERIES

Rotary Quarter-Turn
Pneumatic Actuator

A patented, wear-proof rack-and-pinion actuator engineered for low air consumption and maximum torque in a compact, hard-anodized aluminium body — double acting (AD) or single acting spring-return (AS), built to ISO 5211 and ATEX approved.

Double / Single Acting0° – 90° StrokeMax 8 BarATEX Approved
UFlow AD AS Series rotary pneumatic actuator
DesignRack & Pinion, Aluminium Free
Max Working Pressure8 Bar
BodyExtruded, Hard-Anodized
StandardISO 5211, ATEX
Model Information

Actuator Specifications

Type
AD — Double Acting  |  AS — Single Acting (Spring Return)
Design
Patented Aluminium-Free Rack & Pinion
Stroke
0°–90°, ±5° under-travel adjustable
Max Working Pressure
8 Bar
Body
Aluminium Extruded, Hard-Anodized (high corrosion resistance)
Mounting Standard
ISO 5211
Approvals
ATEX
Seal Temperature Range

Elastomer Options

NBR
-20°C to +80°C
Viton
-20°C to +125°C
Fluorosilicone
-60°C to +110°C
Independently verified low air consumption: AD50 uses 128 ml/bar inward and 137 ml/bar outward stroke — meaningfully less than comparable actuators from other reputed brands.
Model Chart

Sizes AD-32 Through AD-350

Fourteen sizes covering ISO 5211 flange pads F03 through F16 — matched to UFlow JC ball valves and BW/BL butterfly valves.

Double ActingSingle ActingISO Flange
AD-32V2AS-3221V2F03
AD-40V2AS-4012V2F03 / F05
AD-50V2AS-5012V2F03 / F05
AD-63V2AS-6312V2F05 / F07
AD-80V2AS-80201V2F05 / F07
AD-90V2AS-90201V2F07
AD-100V2AS-10012V2F07 / F10
AD-110V2AS-11012V2F07 / F10
AD-125V2AS-12511V2F10 / F12
AD-150V2AS-15011V2F10 / F12
AD-175V2AS-17513UV2F10 / F12
AD-200V2AS-200A6UV2F10 / F14
AD-250V2AS-2506UV2F14
AD-300V2 / AD-350V2AS-3006UV2 / AS-3506UV2F16
Why AD / AS Series

Precision-Engineered For Efficiency

  • Wear-proof aluminium-free rack & pinion design
  • Low air consumption at maximum torque, verified vs competing brands
  • Hard-anodized body for high corrosion resistance
  • Finer teeth module for smooth, jerk-free travel
  • Maintenance-free design, ATEX approved
  • Adjustable end-of-stroke for precise valve seating
Pairs Well With

Automated Valve Packages

AD/AS actuators mount directly to the ISO 5211 pad on UFlow JC Series ball valves and BW/BL Series butterfly valves — order the complete automated valve package pre-assembled and factory-tested.

JC Series Ball ValveBW/BL Butterfly ValveRemote Isolation
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Automating a ball or butterfly valve?

Send us your valve torque requirement and we'll size the right AD/AS actuator.