Actuators are an essential element in any automated assembly. Each one must be carefully chosen to meet the requirements of the valve on which it is mounted and the intended application. Possibilities include pneumatic (whether rack and pinion or scotch-yoke), electric, and hydraulic actuators in a wide range of torques and sizes to meet your needs at the most economical price. In addition, application, safety factors, SIS, SIL, Partial stroke, actuation time, temperature, and emergency response must be considered to optimize the assembly to your needs. Caltrol's AVS Division stocks a large variety of actuator lines and models in order to handle almost any actuation requirement that you may have both quickly and efficiently.  

Manufacturers of the Broadest Variety of Valve Actuator Types

For more than 40 years, Bettis has been recognized as a leader in the manufacture of actuator products. Bettis manufactures a complete line of products, including quarter-turn scotch-yoke, rack and pinion, Linear, Gas/Hydraulic and electric actuators for your actuation requirements. These actuators can be powered by either compressed gas, hydraulic, or electric sources to provide the widest range of torques and thrust available in the industry.   

Compact rack and pinion pneumatic actuators operate reliably and efficiently in many quarter-turn applications including ball, butterfly, and plug valves. Available in a wide range of torques you can count on Bettis products to operate reliably through extreme temperatures, corrosive environments, and high cycles. 

Scotch-yoke pneumatic actuators are now available for many applications both large and small. The Bettis CBA and G series offers such features as guaranteed output torques, water ingress protection, corrosion resistance, NAMUR standardization, close coupling, and overrides. These actuators can operate up to 6 million inch-pounds for double acting models and 3 million inch-pounds in spring-return models. Operating pressures up to 200 psig and temperatures as high as 200 degrees Fahrenheit are also possible. These actuators have been widely used in several damper retrofit projects.

Bettis GVO Series of pneumatic linear actuators are available in both double acting and spring return models with output trust up to 100,000 lbf. Standard accessories such as manual overrides, Positioners, limit switches and solenoids are available. 

Bettis hydraulic actuators come in scotch-yoke, linear, and helical-spline models. Manufactured in both double-acting or fail-safe spring-return designs, they can be used both offshore and in subsea applications as well as on land. Bettis hydraulics are available in torques up to 6 million inch-pounds in double-acting models and 3 million inch-pounds in spring return.

Gas hydraulic actuators are found on natural gas pipelines throughout the world. Operating in a temperature range from -50 to
+ 250 Fahrenheit these rugged models utilize gas pressure from the line as their power source. Bettis gas hydraulics are manufactured in scotch-yoke, rotary vane, and linear designs and can generate output torques up to 6 million inch-pounds.   

Bettis electric actuators are compact and can provide ideal performance in on/off, modulating and fail safe environments. Suitable for use on all sizes of valves, these actuators come in both hazardous and non-hazardous housings including CSA-certified enclosures.  Standard models are available with a wide range of options for control functions. 
 

Providing Optimum Performance under all Circumstances, EL-O-MATIC 

For applications involving extreme temperature ranges or corrosive chemicals, El-O-Matic actuators may be an excellent choice for your continuous process or batch conditions. Available from 40 to 120 psig air supply, these actuators feature dual opposed and balanced piston design for optimum performance and long life. Integrated control options include manual override, a three-position positioning system, limit switches, solenoid valves, and breather blocks. 
 

The Smart Solution to Integrated Control, FieldQ 

FieldQ pnuematic actuators greatly reduce assembly and installation costs by allowing the user or valve automation shop to integrate the actuator, solenoid valve, switch box, and accessories into one product. Covered by various patents on the control module, and the contactless position sensing, the FieldQ revolutionizes the piecemeal approach to automated valve assembly. Upgrades are also much easier with plug in modules that eliminate the need to hang various accessories all over the assembly.  

Other options within FieldQ include push-button initialization of position indicators and intelligent diagnostics to notify the operator of actuator/valve condition. In addition, digital communications are available for several standard bus protocols allowing you to harness the power of PlantWeb^® for yet another facet of your operation. With FieldQ, estimating is a thing of the past, now you can know the status of your valve assembly and take control of your process.

AUMA electric actuators are capable of operating all types of quarterturn valves (butterfly, ball and plug) and multiturn valves (gate, globe, sluice gate and pinch). AUMA actuators are also widely used to operate dampers (louver, guillotine and diverter). Actuators can be furnished for both open/close and modulating service. Integral motor controls and control accessories are available to interface with a wide variety of plant control systems.
 

Caltrol provides prompt delivery from one of the most complete valve actuator inventories available in the Southwestern region of the US . And we also have the largest inventory of OEM replacement parts available anywhere to support the entire product line. Valve adaptation and commissioning is only part of the services available. Talk to us about your networking and system integration requirements. Strategically located, our knowledgeable, factory trained technicians, are available 24/7 to provide prompt repair service in both our shops or at the customer's plant site. Territorial restrictions apply.