Why buy an actuator and add accessories to it?

That was our customer's question. The answer is a newly designed actuator that offers all the necessarry control, communication and annunciation of system status as an integral part of the actuator. The unique, guide rod design of Worcester's series 39 actuator makes this possible. Guide rods are the supporting framework for the pistons of the Series 39 actuator. They prevent the pistons from misaligning and coming in contact with the actuator cylinder creating piston seal wear. Guide rods also prevent piston seals from uneven compression and additional wear. Each time the actuator cycles, the pistons and guiderods move. Access adds to the advantages offered by the guide rod design by utilizing their movement to detect valve position. Incorporating limit switches and a solenoid as an integral part of the actuator proves to be an advantage because it eliminates the need for brackets, shaft couplings, nipples, and additional enclosures. All this functionality is available in one compact enclosure.

• Double-acting or fail-safe
• Single housing for both pneumatic and electrical interface
• LED indicating lights assist in calibration and troubleshooting Eliminates need for brackets, couplings, nipples, shafts, or additional enclosures
• Improved interface with existing sys tems
• Standard enclosure available conform ing to Type 4, 4x, 7, 9 and 12 ratings
• Top shaft free for manual override and me chanical position indication
• High flow spool valve to satisfy quick cycling applications
• Increased reliability and reduced downtime
• Lower power consumption and more efficient coils add up to decreased operating cost
• Intrinsically safe design available optionally
• Single source responsibility Suitable for corrosive environments
• Choice of limit switches

• Clear cover rated to Type 4, 4X, metal cover + SPDT switches rated to Type 4, 4X, 7, 9, 12
• 12 or 24v DC or 24, 120, 240v AC solenoid
• LEDs available in all models for most voltages
• With or without solenoid or high flow spool valve
• AC/DC proximity switches on mounted unit variation
• Manual override and two independently adjustable speed controls offered with spool valve
• Offered Optionally
• Intrinsically safe unit with gold switches and intrinsically safe solenoid

SPDT: 15A, 125, 250 VAC
      1/2 A, 125 VDC; 1/4 A, 250 VDC


DPDT: 1 OA, 125, 250 VAC
      .3A, 125 VDC, .15A, 250 VDC


AC Proximity Switch: 200mA max. continuous
                     Derated by (-3) mA/oC at 50-85¡C
                     20-260 VAC, 45-65Hz


DC Proximity Switch: 200mA max. 9.6-55 VDC


Gold Contacts: 1A,125 VAC
               1A, RES (.5A IND) 28 VDC


Solenoid: 3wattsvoltage12,24VDC 24,120,240ACCV.03 CVwithspool.55


Terminal Strip: 8 points, 12AWG


Conduit:: 3/4 NPT Female


Standard enclosure with metal cover: Watertight, Corrosion
 resistance, NEMA4, 4X,7,9,12, Cast Aluminum impregnated and
 anodized, Class I Div. 1 & 2, Group A,B,C,D Class ll Div. 1 & 2,
 Group E,F,G Class lll Div. 1 & 2

Clear Cover: Lexan® Type 4 & 4X