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Thread Type Turbine Flow Meter Explosion Proof Simple Structure Easy Installation

Categories Turbine Flow Meter
Model Number: LWGYML
Place of Origin: China
MOQ: 1pc
Price: Negotiation
Payment Terms: T/T
Supply Ability: 500pcs per month
Delivery Time: 7-10 working days
Packaging Details: In Carton or Wooden Box
Product Name: Turbine Flow Meter
Connection: Thread Type
Medium Temperature: -20℃~+110℃
Pipeline Diameter: DN4-DN200
Protection Class: IP65
Accuracy: ±1%R、±0.5%R、±0.2%R(Special Order)
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Thread Type Turbine Flow Meter Explosion Proof Simple Structure Easy Installation

Thread Type Turbine Flow Meter Explosion Proof Simple Structure Easy Installation​


1. Introduction

LWGYML series intelligent liquid turbine flow meter is a new type of intelligent instrument with integrated turbine flow sensor and display product calculation developed by advanced ultra-low power single-chip microcomputer technology, which has obvious advantages such as compact mechanism, clear reading, high reliability, undisturbed by external power supply, lightning resistance and low cost.


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. Application

Turbine flow meters are widely used in the following measurement objects: petroleum, organic liquid, inorganic liquid, liquefied gas, natural gas, gas and low temperature fluids. In foreign liquefied petroleum gas, refined oil and light crude oil and other transshipment and collection stations, large crude oil pipelines are used in large numbers for trade settlement. In Europe and the United States, turbine flow meters are second only to the perforated flow meters of natural gas meters, the Netherlands alone in the natural gas pipeline using more than 2,600 various sizes, pressure from 0.8MPa to 6.5MPa gas turbine flow meters, they have become excellent natural gas flow meters. Although the excellent measurement characteristics of turbine flow meters are favored by people, but give the impression that by the moving parts, the use of short, in the selection of inevitable, after people's unremitting efforts, it should be said that the situation has greatly improved. Turbine flow meter as the most common flow meter, its products have developed into a variety, full range, multi-size mass production scale.


4. Working Principle

The working principle of turbine flowmeter: the fluid flows through the sensor housing. Since the blade of impeller has a certain angle with the flow direction, the blade has rotational torque due to the impulse of fluid. After overcoming the friction torque and fluid resistance, the blade rotates. After the moment is balanced, the speed is proportional to the flow rate. Because the blade has magnetic conductivity, it is in signal detection In the magnetic field of the device (composed of permanent magnet steel and coil), the rotating blade cuts the magnetic line of force and changes the magnetic flux of the coil periodically, so that the electric pulse signal is induced at both ends of the coil. The 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 to display the instantaneous flow and cumulative measurement of the fluid.


5. 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 Ratio10:1; 15:1; 20:1
Material304SS,316(L)SS, etc
Medium Temperature-20℃~+110℃
Environmental ConditionsTemperature: -10℃~+55℃
Relative humidity: 5%~90%
Atmospheric pressure: 86~106KPa
Power supplySensor:+12VDC,+24VDC(Option)
Transmitter:+24VDC
Local Display:3.2V Lithium Battery
Output SignalSensor:Pulse Frequency Signal(Low level≤0.8V, High level≥8V)
Transmitter:Two Wired 4-20mA Current Signal
Signal CableSTVPV 3x0.3(Three Wired),2x0.3(Two Wired)
Signal Cable ConnectionHouseman Connector(Standard Type)
Inner Thread M20x1.5(Explosion Type)
Transmission Distance≤1000m
Explosion ProofNone(Standard Type)
EXdIIBT6(Explosion Proof)
Protection ClassIP65

6. Flow Range & Work Pressure

Pipeline DiameterNormal Flow Range
(m³/h)
Extended Flow Range
(m³/h)
Normal Pressure
(MPa)
Pressure Rate(MPa)
(Flange Connection)
DN40.04~0.250.04~0.406.312,16,25
DN60.10~0.600.06~0.606.312,16,25
DN100.20~1.200.15~1.506.312,16,25
DN150.60~6.000.40~8.006.3,2.5
(Flange Connection)
4.0,6.3,12,16,25
DN200.80~8.000.45~9.006.3,2.5
(Flange Connection)
4.0,6.3,12,16,25
DN251.00~10.000.50~10.006.3,2.5
(Flange Connection)
4.0,6.3,12,16,25
DN321.50~15.000.80~15.006.3,2.5
(Flange Connection)
4.0,6.3,12,16,25
DN402.00~20.001.00~20.006.3,2.5
(Flange Connection)
4.0,6.3,12,16,25
DN504.00~40.002.00~~40.002.54.0,6.3,12,16,25
DN657.00~70.004.00~70.002.54.0,6.3,12,16,25
DN8010.00~100.005.00~100.002.54.0,6.3,12,16,25
DN10020.00~200.0010.00~200.001.64.0,6.3,12,16,25
DN12525.00~250.0013.00~250.001.62.5,4.0,6.3,12,16
DN15030.00~300.0015.00~300.001.62.5,4.0,6.3,12,16
DN20080.00~800.0040.00~800.001.62.5,4.0,6.3,12,16

7. 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 DiameterLThread ConnectionFlange Connection
(mm)GD
(mm)
d
(mm)
n
DN4295G1/2
DN6330G1/2
DN10450G1/2
DN1575G1θ65θ144
DN2080G1θ75θ144
DN25100G1-1/4θ85θ144
DN32120G2θ100θ144
DN40140G2θ110θ184
DN50150θ125θ184
DN65170θ145θ184
DN80200θ160θ188
DN100220θ180θ188
DN125250θ210θ258
DN150300θ250θ258
DN200360θ295θ2512

8. Configuration

LWGYML Series Turbine Flow Meter Configuration
ModelLWGYML
Pipe Material44mm
66mm
1010mm
......
200200mm
Model DescriptionNNo Display,12VDC Power Supply,Pulse Output, High Level≥8V Low Level≤0.8V
ANo Display,4-20mA 2 Wired Current Output
BLocal Display,Battery Operated
CLocal Display,4-20mA 2 Wired Current Output
C1Local Display,RS485 Output
C2Local Display, HART Output
Accuracy050.5 Grade
101.0 Grade
Turbine TypeWExtended Ratio
SStandard Ratio
MaterialSSS 304
ISS 316(L)
Explosion ProofNNone
EExplosion Type(ExmIICT6 or ExdIIBT6)
Pressure RateNNormal Pressure
HHigh Pressure
Connection TypeTThread Connection
FFlange Connection
FilterNNone
FWith Filter

9. Details

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