Stainless Steel Industrial Flow Meter / Turbine Water Meter IP65
1. Introduction
LWGYML series intelligent liquid turbine Flowmeter is a new
intelligent instrument which integrates turbine flow sensor and
display. It is developed by using advanced ultra-low power single
chip microcomputer technology. Compact structure, clear reading,
high reliability, no external power interference, lightning
protection, low cost and other obvious advantages.
2. Features
- High accuracy, usually reach ±1%R,±0.5%R,or even reach ±0.2%R for
high-precision type.
- Good repeatability, it can reach 0.05%-0.2% in short term, if
regular calibration or online calibration can get an extremely high
accuracy, so it is preferred in foreign trade.
- Pulse signal output, it is suitable for totalizer measurement and
computer connection, no zero drift,strong capacity of resisting
disturbance.
- High frequency signal(3-4KHz), strong signal resolution.
- Wide range, middle and big diameter can reach 1:20, and small
diameter can reach 1:10.
- Compact structure, easy installation and maintenance.
3. Working Principle
The working principle of the turbine Flowmeter: the fluid flows
through the sensor housing. Because the blade of the impeller has a
certain angle with the flow direction, the impulse force of the
fluid causes the blade to have a rotating torque, and the blade
rotates after overcoming the friction torque and fluid resistance.
the speed is stable after the moment is balanced, and under certain
conditions, the rotational speed is proportional to the velocity,
because the blade has magnetic conductivity. It is in the magnetic
field of the signal detector (composed of permanent magnet steel
and coil). The rotating blade cuts the magnetic force line and
periodically changes the magnetic flux of the coil, so that the two
ends of the coil induce an electric pulse signal. This signal is
amplified and shaped by the amplifier to form a continuous
rectangular pulse wave with a certain amplitude, which can be
transmitted to the display instrument, showing the instantaneous
flow and accumulation of the fluid.
4. 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 |
5. Flow Range & Work Pressure
| Pipeline Diameter | Normal Flow Range
(m³/h) | Extended Flow Range
(m³/h) | Normal Pressure
(MPa) | Pressure Rate(MPa)
(Flange Connection) |
| DN4 | 0.04~0.25 | 0.04~0.40 | 6.3 | 12,16,25 |
| DN6 | 0.10~0.60 | 0.06~0.60 | 6.3 | 12,16,25 |
| DN10 | 0.20~1.20 | 0.15~1.50 | 6.3 | 12,16,25 |
| DN15 | 0.60~6.00 | 0.40~8.00 | 6.3,2.5
(Flange Connection) | 4.0,6.3,12,16,25 |
| DN20 | 0.80~8.00 | 0.45~9.00 | 6.3,2.5
(Flange Connection) | 4.0,6.3,12,16,25 |
| DN25 | 1.00~10.00 | 0.50~10.00 | 6.3,2.5
(Flange Connection) | 4.0,6.3,12,16,25 |
| DN32 | 1.50~15.00 | 0.80~15.00 | 6.3,2.5
(Flange Connection) | 4.0,6.3,12,16,25 |
| DN40 | 2.00~20.00 | 1.00~20.00 | 6.3,2.5
(Flange Connection) | 4.0,6.3,12,16,25 |
| DN50 | 4.00~40.00 | 2.00~~40.00 | 2.5 | 4.0,6.3,12,16,25 |
| DN65 | 7.00~70.00 | 4.00~70.00 | 2.5 | 4.0,6.3,12,16,25 |
| DN80 | 10.00~100.00 | 5.00~100.00 | 2.5 | 4.0,6.3,12,16,25 |
| DN100 | 20.00~200.00 | 10.00~200.00 | 1.6 | 4.0,6.3,12,16,25 |
| DN125 | 25.00~250.00 | 13.00~250.00 | 1.6 | 2.5,4.0,6.3,12,16 |
| DN150 | 30.00~300.00 | 15.00~300.00 | 1.6 | 2.5,4.0,6.3,12,16 |
| DN200 | 80.00~800.00 | 40.00~800.00 | 1.6 | 2.5,4.0,6.3,12,16 |
6. Installation Dimension
According to the diameter, choose thread or flange connection to
install the senor. As to installation method, please check Pic4,
Pic5, Pic6.
Pic4 LWGYML-4~10 Structure & Installation Dimension Diagram
Pic5 LWGYML-15~40 Structure & Installation Dimension Diagram
Pic6 LWGYML-50~200 Structure & Installation Dimension Diagram
| Pipeline Diameter | L | Thread Connection | Flange Connection |
| (mm) | G | D
(mm) | d
(mm) | n |
| DN4 | 295 | G1/2 | | | |
| DN6 | 330 | G1/2 | | | |
| DN10 | 450 | G1/2 | | | |
| DN15 | 75 | G1 | θ65 | θ14 | 4 |
| DN20 | 80 | G1 | θ75 | θ14 | 4 |
| DN25 | 100 | G1-1/4 | θ85 | θ14 | 4 |
| DN32 | 120 | G2 | θ100 | θ14 | 4 |
| DN40 | 140 | G2 | θ110 | θ18 | 4 |
| DN50 | 150 | | θ125 | θ18 | 4 |
| DN65 | 170 | | θ145 | θ18 | 4 |
| DN80 | 200 | | θ160 | θ18 | 8 |
| DN100 | 220 | | θ180 | θ18 | 8 |
| DN125 | 250 | | θ210 | θ25 | 8 |
| DN150 | 300 | | θ250 | θ25 | 8 |
| DN200 | 360 | | θ295 | θ25 | 12 |
7. 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 |
8. Details
