The Excel (XL) Series of Valve Actuator from Hytork^® has so many performance features it is Guaranteed!  Designed for the economical actuation of ball, plug and butterfly valves as well as commercial and industrial dampers.

Aluminum rack and pinion actuators to ISO, NAMUR, VDI/VDE standards. Travel stop adjustment in both open and closed directions. The Excel Series of Actuators are available in both double acting and spring return and feature corrosion protection both internally and externally. Torque requirement valves up to 3950 Nm.
Technical Information is available here.

Features and Benefits

1. 'SAFEKEY' System

2. NAMUR Standard Slotted Pinion

3. NAMUR Solenoid Mounting Pad

4. ISO 5211 Standard Mounting Pad

5. Large Cast-In Air Passage

6. 'DURASTRIP' Bearings

7. Rugged Construction

8. 'CERAMIGARD'

9. Added Standard Protection

10. Simple Design

11. Versatile Modular Design

12. Two Directional Travel Stops

13. Quality Assurance

14. Quality Assurance Stamps

15. Cast In Identification

16. Pinion Thrust and Radial Bearings

17. Pinion Seals - Top and Bottom

18. Safety

19. Indestructible Fail Safe Springs

20. Extensive Range

21. Actuator Over Travel and Travel Stops

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Features and Benefits

1. SAFEKEY' System:  This patented flexible stainless steel key in a machined keyway eliminates stress concentration caused by capscrews, helicoils (thread inserts), etc., increases strength and provides a safety lock against "DANGEROUS" disassembly. Click here for more detailed information.
    

2. NAMUR Standard Slotted Pinion:  Provides a self centering, positive, no slop drive for positioners and switches and eliminates the actuator/accessory coupling.
    

3. NAMUR Solenoid Mounting Pad:  An International Standard. Permits a choice of various manufacturers' solenoid valves to be direct mounted to the actuator. A single solenoid valve can be used for all actuator sizes.
    

4. ISO 5211 Standard Mounting Pad:  An International Standard. Designed for optimum strength and interchangeability. Standardized mounting dimensions, bolt diameters and bolt hole depths for ease and flexibility of mounting; with or without brackets.
    

5. Large Cast-In Air Passage:  This unique "supply-size" internal air passage permits obstruction free, fast operation and simple "air assist" when required.
    

6. 'DURASTRIP' Bearings:  A new long lasting, permanently lubricated, corrosion resistant, replaceable bearing that extends the actuator life in the most severe and demanding applications.
    

7. Rugged Construction:  The heavy duty castings and extra large pinion gear with maximum tooth engagement, eliminates internal backlash and resists operating shocks and fatigue.
    

8. 'CERAMIGARD':  A unique surface finish of Di-Aluminium Tri-Oxide (AL₂0₃): a hard, corrosion resistant ceramic like coating protecting all body surfaces against wear and corrosion. Click here for more detailed information.
    

9. Added Standard Protection:  A long cure, two part epoxy coating provides extra protection against aggressive environments.
    

10. Simple Design:  Only 3 moving parts -1 Pinion, 2 Pistons.
     

11. Versatile Modular Design:  Attach or remove double acting or spring modules in minutes, select any combination of fail position, pinion rotation or actuator alignment in minutes - Safely!
     

12. Two Directional Travel Stops:  A unique, exclusive standard provides rotational adjustment for the actuator pinion, in both directions of travel. This patented design eliminates travel backlash between the rack and the pinion and works in both directions of rotation (unlike end cap stops) - standard up to size 1370 (optional stops available on 2585 and 4580).  Click here for more detailed information.
     

13. Quality Assurance:  Manufactured and designed to the highest QA/QC procedures - BS 5750:Part 1:1987 ISO 9001-1987, Lloyd's Register Quality Assurance Limited certified, plus many other national and corporate approvals.
     

14. Quality Assurance Stamps:  Each actuator is hand stamped with its date of manufacture, the identification of its assembler and the identification of the tester that certified it ready.
     

15. Cast In Identification:  Model numbers, port identifications, ratings, foundry trace and safety instructions are cast in for permanent readability.
     

16. Pinion Thrust and Radial Bearings:  Durastrip thrust bearings protect against vertical forces and also seal against atmospheric intrusion. Durastrip Radial Bearings support all radial forces.
     

17. Pinion Seals - Top and Bottom:  Seals to the atmosphere are located to minimize any crevices and maximize the protection against external corrosive build up.
     

18. Safety:  Safe in design, performance and maintenance. Hytork^®'s safekey, bottom entry pinion, rugged casting and permanent cast in rating and instructions, indestructible springs and unique spring retractor rod system combine to exceed tomorrow's safety requirements.
     

19. Indestructible Fail Safe Springs:  Designed, built and protected to never break - rated to compensate for "spring set" for true fail safe confidence. Guaranteed and backed by a free complete actuator replacement. Highest "end of stroke" forces in the industry, for maximum reserve.
     

20. Extensive Range:  HYTORK^® provides a complete range of Actuators, 11 sizes for torque requirements to 3950 Nm. (2914 Lb/ft)
     

21. Actuator Over Travel and Travel Stops:  High performance and special duty valves require precise and specific rotation limits to perform their intended function. Click here for more detailed information.

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