boilers, PumPs & vAlves
Accuracy and repeatability in the dosing of liquid and gas can be an essential requirement in industries ranging from pharmaceutical production to water treatment.
deviations in valve opening and closing times to help ensure that valve performance and dosing accuracy remains at the desired level. This new feature is an integrated function
within bürkert’s Type 8652 Airline valve island for process automation applications. if valve actuation time deviates beyond a pre-set level, the system displays a notification. maintenance teams can then investigate the deviation and rectify the situation before it impacts product quality or develops further and causes valve failure or a system breakdown. The switch Time monitoring Function
measures the time taken for the process valve to complete its full actuation, starting from the time the pilot valve delivers the pneumatic air. At commissioning, valve actuation speeds are set at their desired level and the valve island’s time switching function monitors and logs the
average actuation time over a user-controlled number of actuations. When the pilot valve is opened, a timer receives
feedback from the process valve. This time value is then stored in the program memory and a deviation rate, which can be adjusted accordingly to greater or lesser sensitivity, is also set. if valve actuation time changes, faster or slower, beyond the set maximum permissible percentage, a notification is signalled.
ExtEnding FunCtionality The status of the valve, including actuation time, is communicated and deviation alerts are displayed on the valve island’s liquid crystal display. As the system also integrates ethernet-based communications, it can send a notification to any of the connected Plcs. Third-party feedback devices can be integrated, and the valve island and
switch Time monitoring Function can also operate with third-party process valves. The functionality is also scalable across all
sizes of operation. The Type 8652 valve island integrates from four up to 48 valves and can provide time switching monitoring across 24 valves. For larger operations, multiple Type 8652 valve islands can be connected together to serve almost any size of process plant. The valve island and switch Time monitoring Function can be integrated directly into oem machines or added by process end users.
CommiSSioning SimpliCity it is possible for valve actuation monitoring to be programmed into a Plc, but this requires specific Plc programming expertise, whereas switch Time monitoring Function can be easily set through bürkert’s user-friendly and free of charge communicator software tool. This removes the need for a Plc specialist, saving time and money in commissioning. setting up the switch Time monitoring
Function can be quickly achieved with the wizard tool for auto-configuration, with manual settings options also available. For a quick guide to commissioning the functionality, bürkert has created a concise video to quickly get users up and running. The video can be found here. To control dosing and ensure product quality
as well as removing the risk of unplanned downtime, valve actuation rates must be monitored. Plc programming can provide the result, but burkert’s built-in functionality is not only faster and easier to commission and manage, it can also provide more dynamic and versatile monitoring and reporting.
The Type 8652 valve island integrates from four up to 48 valves and can provide time switching monitoring across 24 valves.
Bürkert Fluid Control Systems
www.burkert.co.uk
FAcTory&HAndlingsoluTions | december/JAnuAry 2022 41
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