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C Series Pneumatic Rack & Pinion Rotary Actuators

Brand: Flo-Tite Valves and Controls Inc

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Double Acting Actuators

The output torque of double acting actuators is constant in both clockwise and counterclockwise rotation. Actuator can be sized by using steps as follow:

Obtain the published maximum valve torque
Add recommended safety factor to the published torque to get the required operating torque. The suggested safety factor for Double Acting Actuator in normal working conditions is at least 15%.
Refer to table of Double Acting Actuator Output Torque in Technical Bulletin, use the Air Supply Pressure to find the torque that is greater than the required operating torque.
Check the table Model number to determine the appropriate actuator

Spring Return Actuators

The output torque of spring return actuator is obtained by two operations - Air Stroke and Spring Stroke. Each stroke produces two different values in the operation end position "Start" or "End" shown in the Technical Bulletin. The four values are used for sizing the actuator.

Obtain the published maximum valve torque in working conditions.
Add recommended safety factor (margin) to the published torque to get the required operating torque. The suggested safety factor for Spring Return Actuator in normal working conditions is 10%.
Refer to the table for Spring Return Output column. Check to see if the Spring End torque exceeds the required torque.
Read left cross the table to locate the Spring Numbers and Actuator Model to determine the appropriate actuator size and spring numbers

Features

Extruded Aluminum body with standard hard anodized finish and polished internal surfaces
Die Cast Aluminum End Caps powder polyester paint, PTFE or nickel plated
Positions indicator with NAMUR slot for ease of accessory mounting
High Precision Nickel Alloy Steel Blow-out Proof Pinion provides corrosion protection and fully confirms to ISO 5211 and NAMUR standards
Dual Opposed Rack Pistons with low friction bearings and guides for high performance, long cycle life and fast response. Pistons can be easily inverted for reversing rotation
Linear Torque Output from 0° through 90° stroke
Independent Travel Stop Adjustments of ±5° in both open and closed positions for precise valve alignment
High Performance Pre-Loaded Spring Cartridges allow for greater safety and longer spring life. Double acting units can be easily converted to spring return by adding the appropriate quantity of cartridges. Different torque requirements can also be easily achieved by changing the quantity of springs
NAMUR Solenoid Mounting Design Permits direct mounting of solenoid valves
Stainless Steel 304 Fasteners as standard
High Quality O-Rings provides trouble-free operation for a wide range of temperature applications
Optional Corrosion Protection available for body and end caps

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