Heinrichs Messtechnik GmbH • Robert-Perthel-Straße 9 • 50739 Köln • Tel.: +49 (221) 49708-0 • info@heinrichs.eu
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Variable Area Flowmeter / Switch
- 2 Limit switches
- Float of stainless stell or PVDF.
- Flange-, thread-, hose clip and bonded connection
- Mounting length 375 / 400 / 425 / 450 / 500 mm
Function
The measuring element consists of a float and a conical glass measuring tube. If a medium flows from bottom to top through the measuring tube, the float is lifted until a state of equilibrium is reached between the applied buoyancy force and the float weight. The position of the upper edge of the float in the measuring tube serves as a measure of the flow rate and is read on the scale of the measuring tube.
The displayed flow values are only valid for the medium for which the device was calibrated or for a medium with the same data for density and viscosity.
Applications
Flow metering of transparent liquid and gas media in pipes. Indication of momentary volume- or mass flow per time unit.Below are several factors to ponder when employing this flow meter in the industry:
- In the chemical and petrochemical industry: The conical glass measuring tube should be selected based on its compatibility with the specific chemicals used in the processes. It is important to ensure that the materials used are resistant to corrosion and chemical attack.
- In the oil and gas industry: The conical glass measuring tube provides a clear visual indication of the flow rate through the position of the float. This can be beneficial for operators to monitor and control the flow of fluids in real-time.
- In the food industry: The transparent conical glass tube allows operators to visually monitor the flow rate by observing the position of the float. This real-time visual feedback is useful for ensuring the proper flow of ingredients in food processing.
- In pharmaceutical: The variable flow meter with a float and conical measurement are well-suited for measuring low flow rates, making them suitable for applications where precise control over small quantities of fluids is necessary, such as in the dispensing of pharmaceutical ingredients.
Special features
- Modular unit concept.
- Service friendly design.
- Shatter protection
- Limit switches (optional)
Technical data
Measuring ranges
- Water: 6,5…65 l/h – 1.000…10.000l/h
- Air: 150…1.500 Nl/h – 18.000…180.000 Nl/h
Indication
- Flow units on the glass cone
Accuracy (acc. VDE/VDI 3513, 2):
- Liquids: 1,6%
- Gas: 2,5%
Applications
- Metering of liquid products with suitable viscosity, free of solids, not clog and do not tend to form deposits.
- Gases with linear flow characteristics and adequate inlet pressure
