Features
- Special versions up to 600 bar
- Nominal diameter up to DN 150
- Measuring range: 0.5 - 5.0 ... 13 000 - 130 000 l/h water, 0.015 - 0.15 ... 240 - 2 400 m3/h air (20 °C, 1.013 bar)
- Accuracy class: 1.6
- p max : PN 40; t max : -40 ... +350 °C
- Connection: flange DN 15 ... DN150
- Material: stainless steel 1.4404/1.4571, Hastelloy C, PTFE
- Option: contacts, analogue output with HART®, Profibus ® PA or Fieldbus ® FoundationTM, counter
Functions
The fluid flows from bottom to top through the meter tube of
the flow meter. The float is lifted until an annular gap between
the meter ring and the cone-shaped float is produced which
corresponds to the flow. The forces acting on the float are
in equilibrium. The forces that are mainly acting on the float
comprise buoyancy according to the principle of Archimedes,
the flow force of the medium and the weight force. Each
position of the float corresponds to a flow value measured
during calibration, which is transferred to a scale. The BGN
variable area flow meter consists of a meter tube with
connections, a meter ring, and a conical float. By means of
a magnet, the position of the float is transferred to an
encapsulated follow magnet, which has been fitted to a
pointer axle. The position of a second annular follow magnet
fitted on the pointer axle is transferred to the scale by means
of the pointer.
Application
The KOBOLD-BGN meter is suitable for flow measurement of
liquid or gaseous products in pipes. It shows the current flow
rate in volume or mass per unit in time.
Applications
Flow measurement, dosing, monitoring, adjusting and
control of liquid and gaseous products. The meter’s design
makes it ideal for processes under difficult and rough
operating conditions. The devices are available with additional
electrical equipment for process monitoring and control.
- A large spectrum of wetted materials
- Magneto-resistive signal transmission
- Gas- or liquid damping (option)
- Special design for high-pressure and high-temperature applications
- Excellent heat tracing technology (option)
- Double eddy current damping (special version)
- Self draining (special version)
- Backflow stop (special version)
- Flow Controller (special version)
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