Showing posts with label valve automation. Show all posts
Showing posts with label valve automation. Show all posts

Kinetrol Pneumatic Rotary Vane Actuator Product Selection

Here is an easy-access, online vane actuator catalog from Kinetrol that includes pneumatic actuators, spring return units, positioners, indicators, limit switches, solenoid valves, and other valve actuation equipment.

Operation of the Kinetrol Model 20 Vane Actuator with Limit Switch

The following video demonstrates the Kinetrol Model 20, double acting, pneumatic vane actuator as it closes a large butterfly valve.

The Model 20 actuator is capable of delivering 89,000 inch pounds of torque at 80 PSI. The unit you see below is equipped with a dual coil, 4-way solenoid valve to control air flow to either side of the actuator, as well as control the opening / closing time. The actuator below also is equipped with a Kinetrol Universal Limit Switch with visual indication and internal electrical contacts.


EL Electropneumatic Positioner

The EL positioner controls airflow to an actuator and moves it to a position determined by a 4-20mA signal and using a unique low power proportional servo valve.

The microprocessor in the loop-powered 4- 20mA position circuit reads the signal via one channel of a 12-bit A-D converter, reads the position voltage from the feedback potentiometer via the second channel of the

A-D converter, and compares the two. If it detects a position which is different from that required by the signal, it changes the output to the servo valve, in order to drive the actuator in the direction required to reach the correct position. As the actuator moves, the feedback potentiometer voltage changes and the microprocessor continually calculates the adjustments required for the servo valve in order to guide the actuator accurately into position. The microprocessor is programmed with a sophisticated but compact algorithm which allows this critical dynamic valve adjustment to be made correctly. This in turn gives optimal results with any actuator/load combination - slow or fast, low or high friction, low or high inertia. All can be optimized by tuning the PGAIN and DAMP push buttons via the positioner circuit push buttons.



Welcome to the Kinetrol USA Blog

We'll be using this site as a place to educate people about the advantages of rotary vane actuators and showcase interesting and unique applications.

We'll try to post as often as possible and keep the site fresh. Please check back frequently.