Liquid Turbine Flow-Meter – Vetrix LT Series


  • Accuracy: ±1.0%; ±0.5%
  • Operating Temp. : -20 – +60oC
  • Fluid Temp. : -20 – 150oC
  • Body material: SS304; SS316
  • Signal output: 4-20mA, Pulse

The liquid turbine flow meter in the series LT are specially designed for usage in water, diesel, gasoline and other fluid measurement and control systems. They operate according to the turbine principle, i.e. the speed of an impeller turning in the fluid flow is measured and converted into pulse or 4-20mA signals

Operating Principle

Fluid entering the meter first passes through an inlet flow straightener that reduces its turbulent flow pattern. Fluid then passes through the turbine, causing the turbine to rotate at a speed proportional to fluid velocity. As each turbine blade passes through the magnetic field generated by the meter’s magnetic pickup, an AC voltage pulse is generated. These pulses provide an output frequency that is proportional to volumetric flow.

  • Petrochemical/energy industry
  • Hydraulic/lubrication system
  • Oil / gas industry
  • Test systems
  • Distilled water
  • Clean water
  • Food and beverage industry


Output Pulse; 4-20mA
Accuracy ±1.0 of Rate;±0.5% of Rate
Operating Temperature -2O..,+6O℃
Fluid Temperature -2O…+ 15O℃
Body Material SS304; SS316
Rotor Material 2Cr13;CD4MCu
Bearing Material Tungsten Carbide

Flow Range

Diameter (mm) Standard Range (m³ / h) Extended Range (m³ / h)
4 0.04-0.25 0.04-0.4
6 0.1-0.6 0.06-0.6
10 0.2-1.2 0.15-1.5
15 0.6-6 0.4-8
20 0.8-8 0.45-9
25 1-10 0.5-10
32 1.5-15 0.8-15
40 2-20 1-20
50 4-40 2-40
65 7-70 4-70
80 10-100 5-100
100 20-200 10-200
125 25-250 13-250
150 30-300 15-300
200 80-800 40-800

Ordering Information

Model Suffix Code Description
LT- 1 2 3 4 5 6 7 8 9 Liquid Turbine Flowmeter
Diameter XXX Stand tor diameter
004: DN4: 006: DN6
Converter Type N1 24V DC; Pulse output; No display
N2 24V DC; Pulse output;No display; Ex
A 24V DC; 4-20 mA output; Nodisplay; Ex
E1 Battery power supply; No output; Ex; Digital Display
E2 24V DC; 2-wire 4-20mA output;Ex; Digital Display
E3 24V DC; Pulse output; Ex;Display
E4 24V DC; 0-20mA output; EX; Digital display
E5 24V DC; 3-wire 4-20mA / Pulse output; EX; Digital display
M 220Vac; 4-20mA output; EX; Digital display
FE FE:Fluidwell E series converter
FF FF:Fluidwell F series converter
Notice: 1)Modbus RS485 is optional for E2,E3,E4,E5 and M type
2)Dual Power(24VDC+Battery) is optional for E2,E3,E4,E5,G
Accuracy 10 ±1.0% of Rate
5 ±0.5% of Rate
Flow Range S Standard Range
E Extended Range
Body Material S4 SS304
S6 SS316
PL Plastic (DN15-DN50)
Rotor Material Cr 2Cr13
Explosion Proof BT Exd II BT6
NA No explosion proof
Connection THM Male thread; Available from DN4 … DN50
THF Female thread; Available from DN4 … DN50
WAF Wafer connection
DXX D16: DIN PN16 flange;D25: DIN PN25…
AXX A15: ANSI 150# flange;A30: ANSI 300#…
JXX J10: JIS 10K flange;J20: JIS 20K…
Temperature T1 -20…+80 °C
T2 -20…+120 °C
T3 -20…+150 °C


Vetrix LT Series – Liquid Turbine Flow-Meter-DpstarGroup


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