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Petroleum PFA Liner JIS Electromagnetic Flow Meter
Petroleum PFA Liner JIS Electromagnetic Flow Meter
Petroleum PFA Liner JIS Electromagnetic Flow Meter
Petroleum PFA Liner JIS Electromagnetic Flow Meter
Specifications
Model Number :
MLF
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 :
Electromagnetic Flow Meter
Pipeline Diameter :
DN15-DN2000
Accuracy :
Up to 0.2%
Flange :
GB/ANSI/JIS/BS/Others
Velocity :
0.3~10m/s
Liner Material :
Rubber/PTFE/PU/Hard Rubber/PFA/FEP(F46)
Description

Best Technology Guide to Magnetic Flow Meters

1. Introduction

1. MLF electromagnetic flowmeter works according to Faraday's law of electromagnetic induction, and is composed of sensors and converters. Used to measure the conductivity of liquid or solid. In general, its conductivity should be greater than 5μs/cm (tap water and raw water conductivity is about 100 ~ 500μs/cm), and it can also be used to measure acid, alkali, brine, pulp or pulp and other media. However, these media cannot contain a large amount of magnetic substances and bubbles.

MLF electromagnetic flowmeter is an instrument for measuring liquid fluidity. Widely used in metallurgy, chemical industry, paper making, environmental protection, petroleum, textile, food, urban management, water plant and other industries.

2.Working Principle

The principle of the sensor is based on Faraday’s law of electromagnetic induction.

It is installed a pair of detection electrodes on the pipe wall,where the measurement pipe axis

and magnetic field lines are vertical. When the conductive liquid cuts magnetic field lines and

produces induced electromagnetic force.Which can be measured by the two electrodes on the

meter pipe.The result can be calculated by formula: Induced electromotive force,(flow signal)

E=KBDV

E——Induced electromotive force,V；

K——meter constant；

B——Magnetic flux density,T；

D——Internal diameter of measuring pipe,m；

V——Average velocity of pipe section,m/s.

1MLF Series Electromagnetic Flow Meter

Assume the volume of liquid as qv(m3/s),qv=πD2V/4),so in the formula E=(4kB/πD)qv=kqv,

K is meter constant,K=4kB/πD.

Actually, the electromagnetic flow meter consists of two parts, transmitter and sensor, the

measuring electrodes inspect the electromotive force, and transmit to the converter, the

converter provides excitation current.

E is usually called a flow signal, after processing the flow signal by converter, output 4~20 mA/

pulse(or frequency) signal which is proportional to the flow rate, then the flow rate recording,

adjusting can be achieved.

3. Quick Details

1) It is high resistance, fast response design can make undistorted collection of weak signal and fast response to the flow changes. Its range rate can reach 100:1.

2) MLF electromagnetic flowmeter is explosion-proof design.

3) Function of low conductivity measurement.

4) There are nine language(Chinese, English, Korean, Polish, Turkish, French and Portuguese languages) options to meet the needs of different customers.

5) It has the function of self-regulation and self-examination.

6) Different outputs are optional: Hart,RS485 Profibus,4-20mA, frequency, pulse.

4. Selection of Liner Material

Liner Material Main Performance Application
PTFE

1 It has the most stable chemical properties in plastics, resistant to boiling hydrogen chloride and sulfuric acid, nitric acid, aqua regia, strong alkali and various organic solvents, but not resistant to chlorine trifluoride, high temperature nitrogen trifluoride, liquid fluorine, and liquid oxygen And ozone corrosion.

2 Low wear resistance.

3 Low negative pressure resistance.

1. -25~140℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare medium
CR Oil proof, solvent resistance, oxidatite resistance and the resistance to the erosion of common medium like acid, alkali, salt, etc.

1. ＜80℃

2. Be able to measure sewage and mud
PU

1. Very good abrasive resistance, flexibility.

2. Low acid and alkali resistance.

1. ＜65℃

2. Neutral strong abrasion resistance medium
Hard Rubber

1 Resistance to room temperature, hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide and potassium hydroxide

2 Avoid strong oxidants

1. ＜80℃

2. General acid, alkali, salt solution
PFA

1. Can be used for most corrosive medium like acides, alkalis, and strong oxidant.

2. High material strength, resistance to aging, better than PTFE, EFP in high temperature

3. Injection molding for higher negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium
FEP(F46)

1. Hydrophobicity and non-viscous

2. Corrosion resistance is inferior to PFA

3. Negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium

4. Selection of Electrode Materials

Electrode Material Main Performance
316L Good corrosion resistance to nitric acid, less than 5% corrosion of sulfuric acid, acetic acid, alkaline liquid, sulfite, seawater and acetic acid under certain pressure at room temperature, and can be widely used in petrochemical urea, vinylon and so on
Hb

Good resistance to hydrochloric acid with concentration lower than boiling point and corrosion of non-oxidizing acid, alkali, sulfuric acid, phosphoric acid, hydrofluoric acid and organic acid.
Hc Resistant to the corrosion of oxidizing acid, such as nitric acid and mixed acid. The mixture of chromic acid and sulfuric acid, oxidized salts, such as Fe3+, Q3+, and other oxidants, such as the mixture of hypochlorite solution and seawater at higher than normal temperature.
Ti Resistant to the corrosion of seawater, various chlorides, hypochlorite, oxidized acid (including fuming nitric acid), organic acid or alkali, but not pure reducing acid (such as sulfuric acid and hydrochloric acid). However, if the acid contains oxidants (such as nitric acid, Fe3+, Q3+), the corrosion resistance will decrease.
Ta Good corrosion resistance similar to glass. Resistance to the corrosion of chemical medium(including hydrochloric acid and fumiing sulfuric acid), but can not be used for sodium hydromide fluid.
Pt-Ir Have good corrosion resistance of all acid, and can be resistance to the corrosion of alkali, all salt except aqua regia, ammonium slat and few other medium
Tungsten Carbide For pulp and sewage, good resistance to solid particle interference.

5. Dimensional Sketches

a. Dimension of Converter

Petroleum PFA Liner JIS Electromagnetic Flow Meter

Divided Type

Petroleum PFA Liner JIS Electromagnetic Flow Meter

Integrated Type

Petroleum PFA Liner JIS Electromagnetic Flow Meter

Battery Powered Type

b. Dimension of Sensor

Petroleum PFA Liner JIS Electromagnetic Flow Meter

Pipeline Diameter Dimension
L W H
15 160 95 130
20 160 105 137
25 160 115 150
32 160 135 160
40 200 145 175
50 200 160 185
65 200 180 205
80 200 195 215
100 250 215 235
125 250 245 275
150 300 280 300
200 350 335 355
250 400 400 405
300 500 455 460
350 500 515 520
400 600 575 580
450 600 635 630
500 600 710 685
600 600 835 795
700 700 905 910
800 800 1020 1030
900 900 1120 1120
1000 1000 1245 1250
1200 1200 1465 1470

6. Configuration

MLF Series Electromagnetic Flow Meter Configuration
Model MLF
Sensor Installation S Flange Type Sensor
C Insertion Type Sensor
O Others
Pipeline Diameter 10 10mm
15 15mm
20 20mm
......
2000 2000mm
Electrode Installation F Standard Fixed Type
Electrode Material A 316L SS
B Hb
C Ta
D Ti
E Hc
F Tungsten Carbide
G Others
Liner Material R Rubber
P PTFE
O Others
Pipe Material B 304 SS (Standard)
C 316 SS
Flange Type G GB (Standard)
A ANSI
J JIS
B BS
O Others
Flange Material A 304 SS
B 316 SS
C #20 Carbon Steel (Standard)
Cover Material D 304 SS
E 316 SS
F Carbon Steel+ Epoxy Metallic Paint (Standard)
Matching Flange 0 Without Matching Flange (Standard)
1 With Matching Flange
Ground Ring 0 Without Ground Ring (Standard)
1 With Ground Ring
Rated Pressure 10 1.0MPa
16 1.6MPa
25 2.5MPa
40 4.0MPa
Working Temperature E ≤60℃
H ≤180℃(Divided Type)
Type I Integrated Type
D Divided Type
Output P Pulse
A 4-20mA
G RS485
H Hart
Q Others
Power Supply 0 220VAC
1 24VDC
2 Battery-powered
Protection Class 0 IP65 (Integrated/Divided Type)
1 IP67 (Divided Type)
2 IP68 (Divided Type)
Other Features R Heat Energy Function
P With PT1000
B Without PT1000
Explosion Proof 0 None
EX Explosive Proof

Product tags

welding flow meter

,

pengertian electromagnetic flow meter

,

petroleum flow meter
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Petroleum PFA Liner JIS Electromagnetic Flow Meter

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Product Detail
Model Number :
MLF
Place of Origin :
China
MOQ :
1pc
Price :
Negotiation
Payment Terms :
T/T
Supply Ability :
500pcs per month
Contact Supplier
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Petroleum PFA Liner JIS Electromagnetic Flow Meter
Petroleum PFA Liner JIS Electromagnetic Flow Meter

Melan Measurement & Control Instruments (Shanghai) Co.,Ltd.

Site Member
6 Years
shanghai, shanghai
Since 2019
Business Type :
Manufacturer, Exporter
Main Products :
Industrial Flow Meter, Clamp On Ultrasonic Flow Meter, Electromagnetic Flow Meter
Total Annual :
$1000000-$2000000
Employee Number :
>50
Certification Level :
Site Member
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