Small-flow process lines
Measure small liquid and gas flows within process equipment and packaged systems.
Variable Area Flow Meters
FAM3200 McMenon Metal Variable Area Purgemeter
Armored purgemeters for small flows of gases and liquids
Product overview
Metal Tube — FAM3200
The FAM3200 is an armored variable area purgemeter for measuring small flows of gases and liquids. It is particularly suitable for cloudy, opaque, or aggressive measuring media — for use in the chemical, petrochemical and pharmaceutical industries, in gas analysis plants, process engineering, well construction and all applications where glass meter tubes cannot be used.
A magnet in the float translates the height of the float to the decouple-proof magnet follower system, and the flow rate value is indicated on a scale by a pointer mounted on a rotating shaft. Devices are used for local indication, as flow rate monitors with integrated alarm signalling units, with differential pressure regulators, or with a 4 to 20 mA transmitter.
Highlights
Key features and options.
- Needle valve option in the inlet or outlet
- Minimum and/or maximum alarm signalling unit
- Analog output 4 to 20 mA (loop powered, 10 to 30 V DC)
- Differential pressure regulator option
- Stainless steel housing option
Available variants
Choose the connection to suit your installation.
FAM3220 / FAM3250
Horizontal process connection — analog indicator or 4 to 20 mA transmitter
FAM3225 / FAM3255
Vertical process connection — analog indicator or 4 to 20 mA transmitter
INDUSTRIES & APPLICATIONS
Small flows. Robust measurement.
Compact metal-tube flow measurement for equipment and small-flow duties where a glass tube may be unsuitable.
Chemical & PetrochemicalOil & GasPower GenerationOEM Equipment
Opaque liquids
Read flow on an external indicator when the liquid cannot be viewed through a glass tube.
Chemical service
Specify wetted materials to suit the chemical and its operating conditions.
Equipment cooling
Monitor small cooling-fluid flows within the selected meter’s operating limits.
Application suitability depends on the fluid, flow range, operating conditions and selected configuration.
Find the right fit for your process.
Tell us what you need to measure. Our team will help select and size the right meter.
Technical data
At-a-glance specifications.
- Measured error (VDE/VDI 3513)
- 6 % qg = 50 %
- Repeatability
- ±0.5 % of the measured value
- Process connections
- ¼ in NPT (horizontal) · ¼ to 1 in NPT, G ¼ to G 1 in (vertical)
- Max. medium temperature
- −50 to 180 °C (−58 to 356 °F)
- Max. pressure rating
- PN 40 (horizontal) · PN 100 (vertical) — others on request
- Wetted materials
- Stainless steel 1.4571 (316Ti), Viton A®, Buna N®, Kalrez®, PVDF, PTFE
- IP degree of protection
- IP 64 (EN 60529)
- Indicator housing
- Anodized aluminum with polycarbonate or stainless steel cover; stainless steel optional
Documentation
Datasheet and selection guide.
Download the product datasheet and McMenon variable area flowmeter selection guide, or contact our sales team for help specifying what you need.
Variable Area Flow Meters
Explore the complete range.
Need help specifying?
Need a variable area flowmeter for your application? McMenon can size your flowmeter and provide a complete specification. Send us your requirements or speak with our team.