1.The description of the steam turbine flow meter:
This steam turbine flow meter first converts the flow rate to the turbine speed, and then converts the speed into an electrical signal proportional to the flow rate. This flow meter is used to detect instantaneous flow and total accumulated flow.
2.The features of the steam turbine flow meter :
·Can measure the flow is low, about vortex flowmeter 1/4.
·The output signal is frequency, easy to digitize.
·High accuracy.
·Good repeatability.
·Pressure loss is small
·Anti-vibration performance
·Can achieve the integration of temperature, pressure real-time
3.The specification of the steam turbine flow meter :
Model |
LWQ-N |
LWQ-A |
LWQ-B |
LWQ-C |
LWQ-D |
Signal output |
pulse |
4-20mA |
without |
4-20mA |
4-20mA/pulse |
Power supply |
+24VDC±15% |
+24VDC±15% |
lithium battery |
24VDC±15% |
24VDC±15% + lithium battery |
Accuracy level |
2.5~1.5 |
1.5~1.0 |
1.5~1.0 |
Measuring range |
Standard range |
Standard or extended |
Standard or extended |
Monitor |
without |
within |
within |
Temperature compensation |
without |
without |
within |
Communication Interface |
without |
without |
RS485 |
Real-time recording |
without |
without |
within |
Material |
Aluminum alloy or stainless steel |
Aluminum alloy or stainless steel |
Aluminum alloy or stainless steel |
Explosion |
ExdIIBT6 or ExiaIICT4 |
ExdIIBT6 or ExiaIICT4 |
ExdIIBT6or ExiaIICT4 |
Protection class |
IP65 |
IP65 |
IP65 |
Power consumption |
<1W |
<1W |
<1W |
Instrument pass through |
DN25~DN300 |
DN25~DN300 |
DN25~DN300 |
Installation method |
Flange |
Flange |
Flange |
Medium temperature |
-20ºC~80ºC |
-20ºC~80ºC |
-20ºC~80ºC |
Ambient temperature |
-30ºC~60ºC |
-30ºC~60ºC |
-30ºC~60ºC |
4.The measuring range of the steam turbine flow meter :
Instrument Path |
Code |
Standard range |
Code |
Extended range |
DN25 (1") |
S |
2.5-25m3/h |
W |
4-40m3/h |
DN40(1.5") |
S |
5-50m3/h |
W |
6-60m3/h |
DN50(2") |
S1 |
6-65m3/h |
W1 |
5-70m3/h |
|
S2 |
10-100m3/h |
W2 |
8-100m3/h |
DN80(3") |
S1 |
13-250m3/h |
W1 |
10-160m3/h |
|
S2 |
20-400m3/h |
W2 |
|
DN100(4") |
S1 |
20-400m3/h |
W1 |
13-250m3/h |
|
S2 |
32-650m3/h |
W2 |
|
DN150(6") |
S1 |
32-650m3/h |
W1 |
80-1600m3/h |
|
S2 |
50-1000m3/h |
W2 |
|
DN200(8") |
S1 |
80-1600m3/h |
W1 |
50-1000m3/h |
|
S2 |
130-2500 m3/h |
W2 |
|
DN 250(10") |
S1 |
130-2500 m3/h |
W1 |
80-1600 m3/h |
|
S2 |
200-4000 m3/h |
W2 |
|
DN 300(12") |
S |
200-4000 m3/h |
W1 |
130-2500 m3/h |
5.The application of the steam turbine flow meter :
This gas /steam turbine flow meter can be used to measure the instantaneous flow and total accumulated flow of the low viscosity gas which can be widely used in petroleum, chemical industry, metallurgy, urban gas pipe network and other industries.