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8750 Flow Rate Controller & Flow Control System
Brand: Burkert Fluid Control Systems
The flow rate controller, 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, Type 2301, with the compact process controller Type 8693 and two pressure transmitters, 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. So 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.
Features
- Reliable and automated flow control on site
- Stable control of the set point, independent on pressure fluctuations
- Programmable alarm functions (pressure monitoring)
- Simple start-up by manual setpoint setting and display
- Leckage air compensation programmable for dense phase conveying systems
Specifications
Cover/Body Material
- Cover: Stainless Steel 1.4561
- Valve Body: 316L Stainless Steel CF3M
Actuator Material
- Stainless Steel
- PPS
Seal Material
- Seat Seal: PTFE
- Stainless Steel
- Piston Seal: FKM
- Body Seal: Graphite or PTFE
Media
- Air, Nitrogen
- Carbon Dioxide
- Neutral Gases
- Fuel Gases
- Oxygen (on request)
Medium Temperature
- -10° to 100° C
Pressure Range
- Operating Pressure of The Valve : 0 to 16 bar
- Nominal Pressure: < PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Port Connection
- Flange, Stainless Steel 1.4404/316L
Ambient Temperature
- -10° to 55° C
Interface
- Analogue: 4-20 mA, 0-20 mA, 0-10 V or 0-5 V
- Digital Communication: PROFIBUS DPV1, Industrial Ethernet: EtherNet/IP, PROFINET
Nominal Diameter
- DN 15 to DN 100
Measuring Range
- 0-100 mbar to 0-16 bar
Measuring Error
- ≤ 0.5 % of Full Scale
Operating Voltage
- 24 Vdc ± 10 %
Environmental Protection
- IP65/Ip67 According to EN 60529
Electrical Connection
- Input/Output Signal: 1 x M12 Circular Plug-in Connector, 8-Pin
- Internal Signals: 1 x M8 Circular Plug-in Connector , 4-Pin
- Operating Voltage: 1 x M12 Circular Plug-in Connector, 4-Pin
Pilot Air Ports
- G 1/8", Stainless Steel
Approvals & Certifications
- FDA
- EC Regulation 1935/2004
