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DATA SHEET

Type 6281



Servo-assisted 2/2 way

diaphragm valve

Type 2100



Pneumatically operat-

ed 2/2-way angle seat

valve ELEMENT for de-

centralized automation

Type 8805



Ball valve / Butterfly

valve with pneumatic

rotary actuator

Type 8653



AirLINE Field - the valve

island optimised for

process automation

Type 8746



Mass flow controller

(MFC) / Mass flow me-

ter (MFM) for gases

Type 8400



Screw-in temperature

threshold detector/

transmitter with display

1000089368 | Standard | EU | en | 202111 | 11

Flow rate controller for gases

• 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

The flow rate controller type 8750 represents a closed flow control loop to

measure and control gases using the differential pressure principle. The relia-

ble and robust system consists of an ELEMENT control valve, type 2301, the

compact process controller type 8693 put on top of the valve and two pres-

sure transmitters, type 8325. The Bürkert flow rate controller does not need

a separate flow meter. The valve seat serves as variable orifice. From the

pressure difference across the valve and the given density and temperature

a volume flow, referring to the conditions programmed, can be calculated.

For that the process controller uses the flow characteristics of the valve and

the scales of the pressure transmitters programmed. The volume flow set can

then be adjusted by changing the stroke of the control valve. The flow rate

controller offers a high repeatability and large measuring range. Beneficial is

that the control itself is used for both, controling the flow and measuring over

an orifice. With the variable orifice of the control valve the measurement range

is increased significantly. Low assembly costs and easy commissioning are

further advantages of this unique product.

Product variants described in the data sheet may differ from the product presentation and description.

Type description

Can be combined with

Type 8750

© Christian Bürkert GmbH & Co. KG, Subject to alteration