For any new engineer involved in process control, beginner valve technician, sales or service professional or newbie to the valve industry, here is a helpful 7 minute video on how scotch yoke valve actuators are designed and constructed.
While this video outlines how ROTEX Controls builds their actuators, the video gives you a good general idea of the construction and major components.
ROTEX is a a recognized worldwide leader in manufacturer of valves actuators and valve accessories.
What is a Rack & Pinion Actuator?According to Wikipedia, "A rack and pinion is a type of linear actuator that comprises a pair of gears which convert rotational motion into linear motion. A circular gear called "the pinion" engages teeth on a linear "gear" b…Read More
Advanced Scotch Yoke Design Increases Service LifeROTEX recently replaced some old "orange" scotch yoke actuators with the DRS series. The customer is a major international producer and marketer of food and agricultural products. The "orange" actuators were experiencin…Read More
Proper Actuator to Valve Torque SizingA quarter turn pneumatic actuator, wether direct acting or spring return, has a given output torque based upon the air supply pressure provided. This output torque can be fairly linear, or very non-linear depending on the sty…Read More
Industrial Valve Limit SwitchesIn industrial valve terms, a limit switch is a device containing one or more magnetic or electrical switches, operated by the rotational or linear movement of the valve actuator. They are used to show the open or closed posit…Read More
What is a Rack & Pinion Actuator?According to Wikipedia, "A rack and pinion is a type of linear actuator that comprises a pair of gears which convert rotational motion into linear motion. A circular gear called "the pinion" engages teeth on a linear "gear" b… Read More
Advanced Scotch Yoke Design Increases Service LifeROTEX recently replaced some old "orange" scotch yoke actuators with the DRS series. The customer is a major international producer and marketer of food and agricultural products. The "orange" actuators were experiencin… Read More
Proper Actuator to Valve Torque SizingA quarter turn pneumatic actuator, wether direct acting or spring return, has a given output torque based upon the air supply pressure provided. This output torque can be fairly linear, or very non-linear depending on the sty… Read More
Industrial Valve Limit SwitchesIn industrial valve terms, a limit switch is a device containing one or more magnetic or electrical switches, operated by the rotational or linear movement of the valve actuator. They are used to show the open or closed posit… Read More
Critical Service, Triple Off-Set Metal Seated Butterfly Valves with ASME Supply Tank, Fusable Links and Manual Hydraulic Over-Ride16" & 10 " Triple Off-set Valves automated block valves. These are pneumatically operated valves with ASME air tanks for fail close operation on loss of electrical signal. Also included are manual hydraulic over-ride cyli… Read More
