Flow meters TF-200
Turbine Flow Meter
A turbine meter for clear liquids up to 100 cP, DN15 to DN200.
- Pipe size range
- DN15 to DN200
- Medium temperature
- 0 to 120 °C
- Maximum working pressure
- 20 kg/cm²
- Standards
- IIA, IIB, CMRI certified
Documents
Overview
Why buyers choose it
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Measures liquids that do not conduct
Diesel, solvents and other clear liquids up to 100 cP, which an electromagnetic meter cannot read.
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DN15 to DN200
From 0.6 m³/h at the smallest size to 800 m³/h at the largest, each size over a 10:1 range.
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Analogue, pulse and RS485
4–20 mA and pulse outputs with RS485, and rate and total on a local LCD.
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Clear liquids only
The rotor and its bearings sit in the flow, so this is not a meter for liquids carrying solids.
In detail
A turbine meter puts a bladed rotor in the flow and counts its turns. The rotor spins in proportion to the mean velocity through the bore, so the pulse rate it produces is a direct measure of volume flow. Here the rotor is SS410 or 17 PH stainless steel on a tungsten carbide shaft, running in tungsten carbide sleeve or V-jewel bearings, inside a stainless steel body with stainless flanges.
It is made from DN15 to DN200, and each size covers a 10:1 range: 0.6 to 6 m³/h at DN15, 4 to 40 m³/h at DN50, 20 to 200 m³/h at DN100 and 80 to 800 m³/h at DN200. Accuracy is ±1% of full scale between 20 and 100% of flow, with linearity and repeatability both ±1%. Each meter is calibrated at the factory to the range the order specifies.
The liquid must be clear and no thicker than 100 cP, and it may be conductive or not. That is the reason to choose a turbine over an electromagnetic meter: diesel, solvents and other liquids that do not conduct are measured as readily as water. Process limits are 0 to 120 °C and 20 kg/cm², and the pressure drop is about 0.28 kg/cm² at maximum flow.
The transmitter is mounted on the meter or remote from it, in an IP67 die-cast aluminium housing, and runs on 24 V DC at under 0.5 VA. A 16×2 LCD shows flow rate and the running total, switched with a key. Outputs are 4–20 mA and a 30 mA peak-to-peak pulse, with RS485 for a data logger or SCADA. Response time is under 100 ms and the temperature coefficient ±0.01% per °C.
Connections are ASA 150 raised-face flanges to B16.5 at every size, or BSP male threads or stainless tri-clover up to DN50, and the meter can be installed in a horizontal or vertical line. It carries CMRI certification, listed for groups IIA and IIB.
Technical specifications
Metrological
| Measuring principle | Turbine, bladed rotor |
|---|---|
| Accuracy | ±1% of full scale from 20 to 100% of flow; linearity ±1% |
| Repeatability | ±1% |
Hydraulic
| Measured media | Clear liquids up to 100 cP, conductive or non-conductive, including diesel and solvents |
|---|---|
| Medium temperature | 0 to 120 °C |
| Maximum working pressure | 20 kg/cm² |
Materials
| Body material | Stainless steel body, support and flanges |
|---|---|
| Rotor material | Rotor SS410 or 17 PH; shaft tungsten carbide; bearings tungsten carbide sleeve or V-jewel |
| Enclosure material | Die-cast aluminium |
Electrical
| Power supply | 24 V DC, under 0.5 VA |
|---|---|
| Outputs | 4–20 mA DC and pulse, 30 mA peak to peak |
| Display | 16×2 LCD showing flow rate and total, switched by a key |
Communication
| Communication | RS485 |
|---|
Environmental
| Protection class | IP67 |
|---|---|
| Ambient conditions | 0 to 55 °C, 5% to 95% humidity, non-condensing |
Approvals
| Standards | IIA, IIB, CMRI certified |
|---|
Dimensions and installation
| Pipe size range | DN15 to DN200 |
|---|---|
| End connection | ASA 150 RF flanged to B16.5; BSP male threaded or SS tri-clover up to DN50 |
| Transmitter mounting | Integral or remote; in-line, horizontal or vertical |
Parts
Parts of a turbine meter
How a meter of this type is built, and what this model is made of.
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Transmitter with display
Converts the pickup signal into a flow reading and shows it.
Display 16×2 LCD showing flow rate and total, switched by a key
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Pickup sensor
Detects each rotor blade passing and outputs a pulse.
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Rotor
Spins at a rate proportional to the flow velocity.
Rotor material Rotor SS410 or 17 PH; shaft tungsten carbide; bearings tungsten carbide sleeve or V-jewel
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Shaft and bearings
Support the rotor and let it turn freely.
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Flow straightener
Conditions the flow before it reaches the rotor.
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Body
Houses the rotor and carries the flow through the bore.
Body material Stainless steel body, support and flanges
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Flange
Bolts the meter to the pipeline.
End connection ASA 150 RF flanged to B16.5; BSP male threaded or SS tri-clover up to DN50
Download centre
Everything you need to specify.
Documents for the Turbine Flow Meter.
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Download PDF (Opens in a new tab)
Technical datasheet
Specifications and dimensions.
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- Sizes
- DN15 to DN200
- Accuracy
- ±1% of full scale from 20 to 100% of flow; linearity ±1%
