Vortex Flow Meter
VFM45
VFM45 is a powerful flow meter utilizing “Karman vortex” theory, which can meet the requirement of measuring the flow rate of various fluids such as gas, steam and liquid. The product uses the VFM45 transmitter technology, which provides with the excellent signal processing capability and enhance the vortex metering technology to a new level, which means it has lower measuring limit, better stability and accuracy. The special signal processing method has also ensured a better anti‐vibration by eliminating the vibration signals. The VFM45 platform is also an open platform, which means we can keep on upgrading its function according to customer’s unique requirement, and make the product a highly custom‐orientation product.
Description
Comate VFM45 Vortex Flow Meter
- Sensor design that free from maintenance.
- Self density calculation function is optional, can calculate density and mass flow rate without mass flow computer. Can output mass flow rate, temperature and pressure by working with separate RTD and pressure transmitter.
- T&P compensation programmed model available ,can direct work with separate temperature and pressure sensor to measure mass flow
- Can output mass flow rate, temperature and pressure by working with RTD and pressure
- Unit selectable function, meet different requirement on reading’s
- DIN, DN, ANSI, JIS flange for option, can fit in any process
- Many other options, such as 304SS and 316SS, insertion, wafer and flanged, different compensation method, different output methods. Customer can find the most suitable model to save cost.
1. Specification
1) Process Fluids:
Used in liquid, gas, and steam applications. Fluids must be homogeneous and single‐phase.
2) Line Sizes:
The wafer and flanged type cover line sizes as below. 1”, 1.5”, 2”, 3”, 4”, 5”, 6”, 8”,10” ,12”
(DN25, DN40, DN50, DN80, DN100, DN125, DN150, DN200, DN250, DN300)
The insertion type covers DN300~700.
Any requirement on other size, please check with our sales or engineers
3) Process connection:
Flanged, wafer, insertion. DN, ANSI, JIS, DIN Standard flanges are optional
4) Displayer:
Integral or remote.3 buttons control. 2 lines LCD displayer.
1st line has 5 digits to display V/flow rate/ mass flow / frequency/ temperature/ pressure 2nd line has 8 digits to displayer total flow
5) Measureable parameter
Volume flow rate in pipe, velocity (Can measure mass flow rate, temperature and pressure if wired to separate RTD and pressure transmitter.)
6) Measureable flow rate:
A 10:1 turndown ratio in 5~70m/s for gas and steam and in 0.5~7m/s for liquid .(For example , 5~50 or 5.5~55 or 6~60 for gas)
You can also reference to Chart for measurable flow rate range in m3/hr and kg/hr
(Standard measurable range is 6~60m/s for gas ,steam ,and 0.6~6m/s for liquid. For DN25 or smaller pipe and DN300 or larger pipe, turndown ratio is 5:1. If the application requires higher turndown ratio, please advise to check possibility.)
7) Accuracy:
Wafer and flanged type 1% of reading for gas and steam, 0.75% of reading for liquid . Insertion type 2% of reading
8) Fluid temperature:
Standard version: ‐40~280 degree C.(Insertion type to 150 dgr C only) Expanded high temperature version: ‐40~350 degree C. (Not for insertion type)
9) Pressure rating:
Standard pressure rating is 1.6Mpa. Optional pressure rating includes 2.5Mpa, 4Mpa, 6.3Mpa. For higher pressure, please contact us to check possibility
| Fliud to measure | Liqui , steam, gas | ||
|
Nominal diameter |
afer/Flanged(ANSI/DN/DIN/JIS):15mm~300mm(1/2″~12″)
Insertion:300 m~700mm(12″~28″) |
||
| Measurement ange(m/s | Liq id 0.5~7 steam or gas 5~70 | ||
| Accuracy | ±1% RD (insertion is 1.5%RD) | ||
| Repeatability | 0.3% RD (insertion is 1.5%RD) | ||
| Output | 4‐20mA@ HART / RS‐485 | ||
| Process Temperature
Range |
‐40℃~280 ; ‐40℃~3 0℃ ; | ||
| Process Pressure Limit | |||
| –0.1 MPa (–1 k /cm2) to flange rating | |||
| Ambient Temperature Range | –40 to 85°C | ||
| Ambient Humidity | 5 t 100% RH | ||
| Electrical Connection | 1/2 N T, M20 × 1.5 | ||
| Materials | 304 SS, 316 SS, 316L SS | ||





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