Liquid or Gas Industrial Flow Meter Turbine Flowmeter
1. Introduction
LWGYML series turbine flow meter is a new generation kind of flow
meter that absorbs the advanced technologies of flow meter at home
and abroad. It has been optimized and designed to have so many
characteristics, such as simple structure, light weight, high
precision, good repeatability,easy installation and usage.
It is widely used in the sealed pipelines which doesn’t have
corrosion function on SS 1Cr18Ni9Ti, 2Cr13, corundum Al2O3 and cemented carbide and have no fiber, particle and so on. The
liquid should be less than 5*10-6m2/s with viscosity under working temperature, if the viscosity of
the liquid is more than 5*10-6m2/s, then the flow meter can be used after calibration. If it is
equipped with other display devices with special functions, it can
also do quantity control, excessive alarm and so on. It is really
perfect in flow measurement and energy
conservation.
2. Specifications
Pipeline Diameter(mm)
and
Connection | 4,6,10,15,20,25,32,40
Thread Connection |
(15,20,25,32,40) 50,65,80,100,125,150,200
Flange Connection |
| Accuracy | ±1%R,±0.5%R,±0.2%R(Special Order) |
| Turn Down Ratio | 10:1; 15:1; 20:1 |
| Material | 304SS,316(L)SS, etc |
| Medium Temperature | -20℃~+110℃ |
| Environmental Conditions | Temperature: -10℃~+55℃
Relative humidity: 5%~90%
Atmospheric pressure: 86~106KPa |
| Power supply | Sensor:+12VDC,+24VDC(Option)
Transmitter:+24VDC
Local Display:3.2V Lithium Battery |
| Output Signal | Sensor:Pulse Frequency Signal(Low level≤0.8V, High level≥8V)
Transmitter:Two Wired 4-20mA Current Signal |
| Signal Cable | STVPV 3x0.3(Three Wired),2x0.3(Two Wired) |
| Signal Cable Connection | Houseman Connector(Standard Type)
Inner Thread M20x1.5(Explosion Type) |
| Transmission Distance | ≤1000m |
| Explosion Proof | None(Standard Type)
EXdIIBT6(Explosion Proof) |
| Protection Class | IP65 |
3. Configuration
| LWGYML Series Turbine Flow Meter Configuration |
| Model | LWGYML |
| Pipe Material | 4 | 4mm |
| 6 | 6mm |
| 10 | 10mm |
| ...... | |
| 200 | 200mm |
| Model Description | N | No Display,12VDC Power Supply,Pulse Output, High Level≥8V Low
Level≤0.8V |
| A | No Display,4-20mA 2 Wired Current Output |
| B | Local Display,Battery Operated |
| C | Local Display,4-20mA 2 Wired Current Output |
| C1 | Local Display,RS485 Output |
| C2 | Local Display, HART Output |
| Accuracy | 05 | 0.5 Grade |
| 10 | 1.0 Grade |
| Turbine Type | W | Extended Ratio |
| S | Standard Ratio |
| Material | S | SS 304 |
| I | SS 316(L) |
| Explosion Proof | N | None |
| E | Explosion Type(ExmIICT6 or ExdIIBT6) |
| Pressure Rate | N | Normal Pressure |
| H | High Pressure |
| Connection Type | T | Thread Connection |
| F | Flange Connection |
| Filter | N | None |
| F | With Filter |
4. Working Principle
Working principle of turbine flowmeter: Fluid flowing through the
sensor shell, as a result of the impeller blade and flow to a
certain point of view, the impact of fluid blade with rotational
torque, to overcome the friction torque and fluid resistance, blade
rotation speed stability after the moment balance, under certain
conditions, the speed is proportional to the velocity of flow,
because there are magnetic conductivity blade, it is in the signal
detector (consists of permanent magnets and coils) magnetic field,
rotating blade cutting lines, periodically changing coil magnetic
flux, so that the coil ends induction electrical pulse signal, the
signal after amplifier amplification plastic, form a certain
amplitude of continuous rectangular pulse wave, It can be
transmitted to the display instrument, showing the instantaneous
flow rate and accumulative amount of fluid.
5. Details
