Top of mind
Compact and maxi-versatile end position feedback system
A small box that goes big .
Position feedback systems are used on quarter-turn valves in piping systems and must be matched to the application conditions and quarter-turn actuator sizes .
Text and images by bar pneumatische
Steuerungssysteme GmbH
The bar-miniswitch optical / electrical limit switch feedback system is a flexible all-rounder for system operation . At the same time , the optimal and compact design requires only a minimum of installation space .
Plug and play
The simple functionality should be emphasised , because bar-miniswitch automatically sets the switching points of the end positions with mechanical or inductive switches . The electrical connections are simply plugged in , so that the box does not have to be opened either for setting or for the electrical connection . This means a positive balance for assembly time and installation costs , because no specialised personnel is required for system construction or replacement of the box . All components are made of corrosion-resistant materials , and the actuators shaft is well protected by the flat design using mounting plates . Despite the small size of the end-position feedback , the flow paths can be easily detected for both 2 / 2-way and 3 / 2-way valves .
The leap to the ‘ big ’ actuators
There was nothing more obvious than to use the positive characteristics of the barminiswitch for larger quarter-turn actuators . A special mounting bridge was developed for the required 130 x 30 mm dimension size . An optional pinion extension implements the errorfree end position feedback . The bridge itself is made of two parts , so that it can also be easily retrofitted in existing systems .
Certifications for special areas of application
To meet the requirements of the American and Canadian market , the bar-miniswitch has undergone UL / CSA certification , in which all electrical components are tested . System planners and plant operators can easily use the end position feedback to pass all system acceptance tests .
Now it also floats !
The suitability in functionality and working condition for special maritime operating conditions in the offshore area and various types of ships was certified with a DNV certificate . The end position feedback also offers protection class IP66 for valve automation in many processes in merchant , passenger or naval vessels . All in all , the position feedback is a flexible and convincing concept to make plant operation easier and safer .
About the company With the manufacture and world-wide sales of pneumatic and electric actuators as well as complete automatic valves and wide-ranging accessories , bar GmbH is an important partner to many well-known and respected industrial companies . bar GmbH is constantly working on product development und innovations for plant construction and process-related applications in industry . With every fitting for every interface of the pneumatic actuator ” actubar ,“ convincing components for worldwide applications . www . valve-world . net Valve World August 2023
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