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ACTUATORS ATEX APPROVED II 2 G D

    
 
 
Compact Design 

The MAX-AIR rack & pinion pneumatic actuator produces linear torque output in a compact design utilizing the same body and end caps for double acting and spring return units.



Namur Mounting 

Namur VDI/VDE 3845 and ISO 5211 dimensions on all sizes. No special blocks are required to mount solenoid valves, limit switches or positioners.Degree of Travel 
The standard angle of rotation is 90°. Additional travel rotations of 120°, 135°, 150° and 180° are available. UT15 and upper sizes feature a double travel stop with ± 10° stroke registration.

 


Bottom Mounting Flange 
The “patent pending” bottom plate design, unique to MAX-AIR, secures a captive pinion (anti-blowout system) and permits flexibility in mounting by retaining AISI 304 nuts (standard) or AISI 304 bolts (optional) in either dual ISO patterns, or to customer dimensions.
Flexible Output Shafts 
The female pinion drive is standard with a double square output drive, and optional with a double-D drive, keyed drive and designs to meet your specific requirements.
Shaft bearings isolate the pinion gear from the housing and support the shaft for high cycle applications. Many competitive manufacturers do not provide this critical feature.
High Visibility Position Indication
External open/close indicator as standard, available for all the rotations. Pinion height (NAMUR 30) allows manual override without disturbing the indicator position.
 
Pistons 
Pistons incorporate double wear pads to separate the rack from the actuator wall and serve as both guide and wear bearings.


Fasteners
Epoxy coated special steel springs are pre-loaded with non-metallic materials. The stainless steel end cap fasteners are extra long to allow for spring relaxation. All parts are corrosion resistant.


Testing & Traceability
All units are externally stamped with a progressive traceable serial number.
100% of all units are factory pressure and leak tested, and individually boxed for shipment.

Working Conditions 
Air pressure operation from 2 to 10 Bar (40 – 150 PSI). Water, nitrogen and compatible hydraulic fluids may also be used to power the actuator.
All external fasteners are corrosion resistant stainless steel.
All internal and external surfaces are hard anodized for corrosion resistance, with all units permanently lubricated at the factory with non-silicone grease.