Gas Turbine Flow Meter LWQ

Gas Turbine Flow Meter LWQ

To request the medium with clean, better to install the filter...

■ 180 degrees rotatable head, and easy installation and maintenance;
■ Good repeatability: 0.05%~0.2% for short period;
■ Temperature and pressure compensation available;

 

  • Description

  • The operation of the International Gas Turbine Meter is based on the measurement of the velocity of gas. The flowing gas is accelerated and conditioned by the meters straightening section. The straightening vanes prepare the gas flow profile by removing. undesired swirl, turbulence and asymmetry before the gas flows to the turbine wheel. The dynamic forces of the flowing fluid cause the rotor to rotate.

  • The turbine wheel is mounted on the main shaft, with special high precision, low friction ball bearings. The turbine wheel has helical blades that have a known angle relative to the gas flow. The conditioned and accelerated gas drives the turbine wheel with an angular velocity that is proportional with the gas velocity.

  • Technical Data

Output Pulse
 (Depending on Converter Model)

Pulse

4~20mA

Accuracy

±1.0%ofRate
  ±1.5% of Rate

Operating Temperature

-20...+60°C

Fluid Temperature

-20...+80°C

Body Material Cast Aluminium

SS 304
SS 316
Body Material Cast Aluminium Cast Steel
(D4:DN50-DN200)

Rotor Material

Aluminum alloy
Plastic ABS

Bearing Material

SS304

  •  Model Selection

Model LWQ Description
Diameter XXX                  DN20-DN400
Converter Type N               24V DC; Pulse output; No display
A               24V DC; 4-20 mA output; No display; 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; Local display; Ex; display
E4               24V DC; 0-20mA output; Local display; EX;Digital display
E5               24V DC; 3-wire 4-20mA / Pulse output; EX; Digital display
FE               Fluidwell E series converter
FF               Fluidwell F series converter
D1               24V DC; 2-wire 4-20mA output; Digital display; Temperature & Pressure Compensation
D2               24V DC; 3-wire 4-20mA output; Digital display; Temperature & Pressure Compensation
D4               24V DC; 4-20mA output; Modbus RS485; Digital display; Temperature & Pressure Compensation
Notice:               1)Modbus RS485 is optional for E2,E3,E4,E5,D1,D2,D4
2)Battery Power(24V DC+Battery) is optional for E2,E3,E4,E5,D1,D2,D4
3)D4 is only cast steel available
Accuracy 10             ±1.0% of Rate
15             ±1.5% of Rate
Flow Range S           Standard Range
E           Extended Range
Body Material S4         SS304
S6         SS316
CA         Cast Aluminum
CS         Cast Steel (Only for D4 Type)
Rotor Material AB       ABS Plastic
AA       Aluminum Alloy
Explosion Proof BT     Exd II BT6
CT     Exd II CT4
NA     No explosion proof
Connection THM   Male thread; Available from DN4 ... DN50
THF   Female thread; Available from DN4 ... DN50
DXX   D16: DIN PN16 flange; D25: DIN PN25…
AXX   A15: ANSI 150#    flange; A30: ANSI 300#...
JXX   J10: JIS 10K flange;    J20: JIS 20K
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