Rack and pinion pneumatic actuator in aluminium, 0–90°, 9 Nm at 6 bar

Double acting, 0–90°, 9 Nm at 6 bar, ISO 5211 F03 drilling. ATEX for zones 1/2/21/22.

ATEX

UKEX

DNV

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Rack and pinion rotary pneumatic actuator with a hard-anodised extruded aluminium body, for automating ball, butterfly and other quarter-turn valves. At 6 bar it delivers 9 Nm double acting.

The twin rack design balances internal forces and keeps torque constant throughout the stroke; the cam and adjustment screw chamber is separate from the piston chamber, reducing potential leak points. Travel is adjustable by ±5° in both opening and closing.

Features

Double acting (DA) operation
ISO 5211 drilling F03, 9 mm drive square
NAMUR top shaft and solenoid valve interface
Maximum pressure 8 bar, standard temperature −20…+85 °C
Lubricated for life, 100% functional and leak tested

Special versions

On request: high temperature up to +150 °C, low temperature down to −40 °C, nickel-plated or PTFE coated finish for corrosive environments, C5 special painting and 303 stainless steel pinion.

Use in hazardous areas

Non-electrical actuator compliant with ATEX Directive 2014/34/EU, marked II 2G Ex h IIC T6…T3 Gb and II 2D Ex h IIIC T85°C…T200°C Db: suitable for zones 1, 2, 21 and 22. It also holds DNV marine type approval.

Zone 1

Explosive gas atmosphere likely to occur in normal operation

Zone 2

Explosive gas atmosphere unlikely to occur and, if it does, only for a short period

Zone 21

Explosive dust atmosphere likely to occur in normal operation

Zone 22

Explosive dust atmosphere unlikely to occur and, if it does, only for a short period

# General Type: rack and pinion pneumatic actuator Operation: double acting (DA) Rotation: 0–90° with ±5° adjustment in opening and closing Body: extruded aluminium UNI 6060, hard anodised 45–50 µm End caps: die-cast aluminium, polyester powder coated Pinion: nickel-plated steel, anti-blowout design Seals: NBR (FKM for high temperature, silicone for low temperature) # Operating data Supply: compressed air Maximum pressure: 8 bar Standard working temperature: −20…+85 °C High temperature version: −20…+150 °C Low temperature version: −40…+85 °C # Torque Double acting torque at 6 bar: 9 Nm Double acting torque at 4 bar 6 Nm, 5 bar 7.5 Nm, 7 bar 10 Nm, 8 bar 11.5 Nm # Interfaces ISO 5211 drilling: F03 Drive square: 9 mm Top shaft and solenoid valve interface: NAMUR Air connections: G 1/8 # Performance Operating time at 6 bar (no valve): 0.03 s anticlockwise / 0.03 s clockwise Air volume per stroke: 0.04 l anticlockwise / 0.03 l clockwise Weight, double acting: 0.49 kg # Certifications ATEX gas: II 2G Ex h IIC T6…T3 Gb ATEX dust: II 2D Ex h IIIC T85°C…T200°C Db Other: CE, UKEX, DNV marine type approval # Options on request Finishes: nickel-plated, PTFE coated, C5 special painting, 303 stainless steel pinion

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