Kewill Global

THEORY

The meter box and a pair of elliptic gear that installed in the measuring box,compose a sealed the crescent – shaped container with upper and lower cover plate(due to rotation of gear,so it is not absolutely sealed)as counting unit of a output volume.

When the tested liquid through the pipeline into flowmeter,because of the pressure difference of import and export promote a pair of gear continous operate,

constantly sent the liquid that metered by the crescent – shaped container to the export, the product of the elliptic gear revolution and four times of every output volume is the total flow of tested liquid.

 

STRUCTURE

Elliptic gear flowmeter consist of flow transmitter and counting mechanism.If installing radiator between the transmitter and counting mechanism,as this it will constitute to high temperature type flowmeter。Transmitter consist of the measuring room with a pair of elliptic gear rotor and sealed coupling,the counting mechanism including reduction mechanism, adjusting mechanism, counter and pinger.

APPLICATIONS

 

Suitable for asphalt,lubricating oil, plant oil,diesel oil,fossil oil,residual oil,kerosene,engine oil,petrol,heavy oil,fuel oil, conduction oil,crude oil,light oil. Insulation oil. The hydraulic oil. And so on many kinds of oil products,insulation oil,hydraulic oil and variouse oil products.

TECHNICAL DATA

●DN(mm) DN10~DN200
●Viscosity of tested liquid: 2~3000(mPa.s)
●Protection classic: IP65(Special custom IP68)
●Repeatability error: Tested value±0.2、±0.5
●Accuracy classic: 0.2,0.5% classic
●Temp of tested medium: Normal temperature type:-45~100℃
High temperature type: +60℃~200℃
Super high temp. type:less than above 220℃
●Rated working pressure:(high pressure can custom) Cast iron:≤1.0MPa
stainless steel:≤1.6MPa
Cast steel:≤2.5MPa(4MPa,6.5MPa option)
●Output signal: Pulse signal or 4-20mA current signal

●Power supply source: AC220V,DC24V or 3.6V buttery
●Total power consumption: Less than 20W
●Ambient temp: _ 40~+60℃
●Relative temp: 5%~95%
●Current output: Load resistance 0~10mA: 0~1.5kΩ
4~20mA:  0~750 Kω

●Digital frequency output:Output frequency rate up-limit inside 1~5000HZ can set crystal tube with optoelectronic isolation electrode open way double direction output.When external source≤35Vconduction,collector max current is 250mA.

APPLICATIONS

Normal temperature type:  Flow range(m3/h)
The following datas based on tested liquid  -45~100°C (2-200 mpa.s viscosity value)
Withstand voltage (Mpa) Cast iron Cast steel Stainless steel
1.0 1.6 2.5  4.0  6.4 1.0 1.6
DN Accuracy 0.5 Accuracy 0.2 Accuracy 0.5 Accuracy 0.2 Accuracy 0.5 Accuracy 0.2
10 0.08~0.4 0.1~0.4 0.08~0.4 0.1~0.4 0.1~0.5 0.1~0.5
15 0.25~1.5 0.3~1.5 0.25~1.5 0.3~1.5 0.3~1.5 0.3~1.5
20 0.5~3 0.6~3 0.5~3 0.6~3 0.6~3 0.6~3
25 1~6 1.2~6 1~6 1.2~6 1.2~6 1.2~6
40 2.5~15 3~15 2.5~15 3~15 3~15 3~15
50 4~24 4.8~24 4~24 4.8~24 4.8~24 4.8~24
80 10~60 12~60 10~60 12~60 12~60 12~60
100 16~100 12~100 16~100 20~100 20~100 20~100
150 32~190 38~190 32~190 38~190 38~190 38~190
200 34~340 68~340 34~340 68~340 68~340 68~340
High temperature type: Flow range(m3/h)
The following datas based on tested liquid 100~220℃ (2-200 mpa.viscosity value)
Withstand voltage (Mpa) Cast iron Cast steel Stainless steel
1.0 1.6 2.5  4.0  6.4 1.0 1.6
DN Accuracy 0.5 Accuracy 0.2 Accuracy 0.5 Accuracy 0.2 Accuracy 0.5 Accuracy 0.2
10 0.04~0.4 0.1~0.4 0.08~0.4 0.1~0.4 0.1~0.5 0.1~0.5
15 0.24~1.5 0.35~1.35 0.24~1.35 0.35~1.35 0.3~1.35 0.3~1.35
20 0.54~2.7 0.72~2.7 0.54~2.7 0.72~2.7 0.72~2.7 0.72~2.7
25 1.2~5.4 1.4~5.4 1.2~5.4 1.4~5.4 1.4~5.4 1.4~5.4
40 2.7~13.5 3.6~13.5 2.7~13.5 3.6~13.5 3.6~13.5 3.6~13.5
50 4.4~21.6 5.75~21.6 4.4~21.6 5.7~21.6 5.7~21.6 5.75~21
80 10.8~54 14.4~54 10.8~54 14.4~54 14.4~54 14.4~54
100 18~90 24~90 18~90 24~90 24~90 24~90
150 38~170 45.6~170 32~170 45.6~170 45.6~170 45.6~170
200 34~340 68~340 34~340 68~340 68~340 68~340
High Viscosity Type: Flow range(m3/h)

The following datas based on tested liquid -10~100°C (200-3000 mpa.s viscosity value),precision is 0.5%.

■ repeatbility:±0.1% of meastured value

Withstand voltage (Mpa) Stainless steel Cast steel
1.6MPa 2.5MPa 6.4MPa

Accuracy0.5

DN10 0.04~0.2 DN20 0.3~1.5 DN40 1.5~7.5 DN80 6~30 DN150 38~100
DN15 0.15~0.75 DN25 0.6~3 DN50 2.4~12 DN100 10~50 DN200 34~300

OUTLINE PARAMETERS

(one)Outline size of Cast steel type,cast steel high viscosity type and high temperature type.

DN L H A B D D1 Number Φ Weight(KG)
15 200 138 232 180 105 75 4 14 12
20 250 164 220 160 125 90 4 18 18
25 300 202 252 185 135 100 4 18 22
40 300 202 293 208 165 125 4 23 27
50 384 262 394 312 175 135 4 23 66
80 450 337 452 332 210 170 8 23 118
100 555 442 478 310 250 200 8 25 210
150 540 510 557 347 300 250 8 26 260
200 650 650 720 476 36 310 12 26 430

Outline size of Cast steel type,cast steel high temperature elliptic gear flowmeter.:DN15~DN25,size A,B on the basis of above data to add 160mm heat stretch tube.DN40~DN80,size A,B on the basis of above data to add 300mm heat stretch tube,oher sizes as the same as above data.

(two)Outline of stainless steel type

DN L H A B D D1 Number Φ Weight KG
10 170 100 167 216 90 60 4 14 7
15 200 120 172 228 95 65 4 14 11
20 230 150 225 238 105 75 4 14 17
25 280 195 232 246 115 85 4 14 21
40 260 178 265 349 145 110 4 18 24
50 260 178 265 349 160 125 4 18 24
65 365 260 319 436 180 145 4 18 60
80 420 305 324 459 200 160 8 18 82
100 515 400 373 554 220 180 8 18 127
150 540 515 397 607 280 240 8 23 280
200 650 650 397 646 340 295 12 23 435

 

SELECTION TABLE

FG- 10 L A 1 5 1.0 P /DA SPECIFICATION
FG- FG Series elliptic gear flowmeter(Flange connection type)
FG-T FG-T Series elliptic gear flowmeter(Thread connection type)
DN 10 Normal diameter DN10 – DN200 (mm)
Material L Material:stainless steel 304
K Material:stainless steel 316L
Viscosity of tested liquid A Liquid viscosity:2-200mpa.s
B Liquid vicosity:200-3000mpa.s
C Liquid vicosity:≥3000mpa.s
Temperature of tested medium 1 Medium temp:normal temp type -45~100℃
2 Medium temp: high temp type 100~220℃
Accuracy classic 5 Accuracy classic:0.5classic
2 Accuracy classic:0.2classic
Withstand voltage value 1.0 Detailed see optional data,such as 1.0=1MPA
Signal type P Pulse signal
A 4-20mA current signal
F No signal
Option:Display in site system /DA Mechanical character wheel cumulant display unit(optional)
/DB LCD digital display unit (optional)
Required fields:       Power supply type DC 24V DC24V
AC 220V AC220V
Lithium buttery 3.5V 3.5V
No power supply type 0

Ordering Tips

1.Please specify the medium flow direction,medium kinds, pipe diamete,and expected measuring interval value when ordering.We can help you to finish accurate calibration before leave factory.

2.If it is viscous medium, please specify the viscosity, temperature ,medium kinds and pressure classic inside of pipeline.

FG Type

Flowmeter,basic component is stainless steel.Suitable medium:oil liquid medium.Max work pressure is 6.5Mpa.Medium temp is -45…220℃.Power source:DC24 AC220V.Protection classic:IP68. Suitable DN:10-200mm( heavy high matching series can be optional)


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