EMERSON. KTM PNEUMATIC ACTUATORS AK SERIES (FOR SMALL AND MIDDLE SIZED VALVES)Compact and light-weight actuator, equipped with a guide rod for smooth operation and extended durability 1 Double acting and single acting type are of the same shape and dimension 1Double rack and pinion gear construction produces a smooth uniform stroke throughout the whole range 1Guide rod eliminates side loading of the piston for smooth actuation and greater durability 1 Double rack design allows for a larger cylinder bore and shorter piston stroke, resulting in a more compact unit and high torque 1 ISO 5211 mounting pattern to provide the greatest flexibility for valve adaptation 1 Air supply port (piping seat) and stem top conform to NAMUR standards for simple and direct mounting of accessories 1 Interchangeable spring return sets according to each operating pressure/torque: Standard: AK-S 0.4 to 0.7MPa Low pressure type: AK-L 0.3 to 0.7MPa High torque type: AK-H 0.5 to 0.7MPa • Suitable for actuation of several types of quarter-turn valves • Available for using at limited space because of its lightweight compact design • Adequate for small to middle size valves Actuator model Double acting: Spring return1: Supply pressure Double acting: Spring return1: (ambient temperature) Output torque Double acting: 23.5 to 270 Nm Emerson.com/FinalControl © 2017 Emerson. All rights reserved VCTDS-02689-EN 17/06 Available also for low pressure type (L) and high torque type (H). For more details please consult us. Model AK05 is not available as spring return

KTM PNEUMATIC ACTUATORS AK SERIES (FOR SMALL AND MIDDLE SIZED VALVES) Top cover Die-cast aluminium with a visual travel indicator marked at 15˚ increments Stem The shaft rotating part is hard chrome plated to improve wear resistance. The stem top conforms to the NAMUR standards, thereby making it easy to mount accessories. Rack Cold-worked surface hardened to reduce friction, increase durability and reduce maintenance Cover and piston (die-cast aluminum) Adopting a high grade die-cast method, both dimensional precision and mechanical strength of the material are improved Guide rod Excellent length...

Air consumption Vd, Vs The air consumption Vd and Vs show the volume of air consumed in a certain time period. For the same size cylinder, air consumption increases in direct proportion to the operating time. The consumption is determined by the formula as shown below. The total air consumption is equivalent to the sum obtained for the total units. Air consumption of double acting cylinder (Nl): Vd = (A+B) {(P+0.1)/0.1} n Air consumption of spring return cylinder (Nl): Vs = B {(P+0.1)/0.1} n [Remarks] Vd: Air consumption of double acting cylinder (Nl ) Vs: Air consumption of spring return cylinder...

L4, W3 :For manual override (spring return only) NOTES 1. Data in parenthesis ( ) apply to spring return type. 2. Available for spring return in low pressure type (L) and high pressure type (H). For more details please consult us. SELECTION GUIDE Example: Actuator type *ModeL 05 is not available as spring return Operation type Description (Supply pressure) Blank Double acting type (0.3 to 0.7 MPa) S Spring return type - Standard (0.4 to 0.7 MPa) L Spring return type - Low pressure type (0.3 to 0.7 MPa) H Sp ring return type - High torque type (0.5 to 0.7 MPa) Specials (Option) Description A Direct-acting...

KTM PNEUMATIC ACTUATORS AK SERIES (FOR SMALL AND MIDDLE SIZED VALVES)

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