The flow rate controller, BURKERT TYPE 8750, is a system to measure and control gases using the differential pressure principle. The reliable and robust system consists of an ELEMENT continuous control valve, BURKERT Type 2301, with the compact process controller Type 8693 and two pressure transmitters, BURKERT Type 8323. These components are supplied within an assembled system including a special body. The Bürkert flow rate controller does not need a separate flow meter. The control valve serves as orifice plate. From the pressure difference across the valve and the given density and temperature a nominal flow can be calculated. Therefore the flow characteristics of the valve are given to the process controller. The volume flow can then be adjusted by changing the stroke of the control valve. All components of the control loop build an integrated system. The flow rate controller offers a high repeatability and large measuring range. With the combination of orifice plate and control valve the pressure drop is reduced in comparison to conventional solutions. With the variable orifice of the control valve the measurement range is increased. Low assembly costs and easy commissioning are further advantages of this unique system.
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This process involves specifying, procuring, calibrating and maintaining instrumentation and control systems for industrial and commercial process control applications.
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