Elliptical Gear Flow Meter

49

Product

BAIC GROUP

02

High measurement accuracy, wide flow

rate range and good repeatability.

产品特点

The spiral rotor rotates uniformly with

low vibration and long service life.

产品概述

Insensitive to changes in the viscosity of

the liquid to be measured, especially

suitable for the measurement of liquids

with high viscosity.

01

overview

Simple structure, small outline

dimensions and light weight.

Easy to install, no need to install a

straight tube segment in front of the

meter.

Low pressure loss.

Product

Unaffected by viscosity, liquid viscosity of 7 不受粘度影响，液体粘度1-300MPA.S。 1-300 MPA.S.

6 压力损失小。

5 安装容易，表前不需要安装直管段。

4 结构简单、外形尺寸小、重量轻。

3 尤其适合于粘度较高液体的测量。

对被测液体的粘度变化不敏感，

2 寿命长。

螺旋转子转动均匀，震动小、

1 重复性好。

测量精度高、流量范围宽、

门的无腐蚀介质的流量计量。

别适用于成品油品介质的计量。广泛用于石油、化工、化纤、交通、商业、食品、医药卫生、新能源等工业部

椭圆齿轮流量计，装有现场指针显示、字轮累计计数装置，可以直接显示流经管道内的液体累积流量。特

优点，是容积式流量计的代表产品。

值。它具有量程范围大、压力损失小、粘度适应性强，能测量高温、高粘度液体、标定方便、安装简易等诸多

差的作用下，一对椭圆齿轮在轴上不停地转动并排出液体，测出椭圆齿轮的转数即可知道流经仪表液体的总

椭圆齿轮流量计是用于对管道中液体流量进行连续测量的高精度计量仪表。仪表测量室进出口两端液体压

椭圆齿轮流量计

Product Overview

Elliptical gear flow meter is a high-precision measuring instrument used for continuous measurement of liquid flow in

pipelines. Under the action of liquid pressure difference between the inlet and outlet ends of the instrument measuring

chamber, a pair of elliptical gears keeps rotating on the shaft and discharging the liquid, and the number of revolutions of

the elliptical gears can be measured to know the total value of the liquid flowing through the instrument. It has a wide

measurement range, small pressure loss, strong viscosity adaptability, can measure high temperature, high viscosity liquid,

convenient calibration, easy installation and many other advantages, is a representative product of the volumetric flow

meter.

Elliptical gear flow meter, equipped with on-site pointer display, character wheel cumulative counting device, can

directly display the cumulative flow of the liquid flowing through the pipeline. Particularly suitable for the metering of

refined oil medium. Widely used in petroleum, chemical, chemical fiber, transportation, commerce, food, medicine and

health, new energy and other industrial sectors of non-corrosive media flow rate measurement.

Product Features

High measurement accuracy, wide flow

rate range and good repeatability.

The spiral rotor rotates uniformly with

low vibration and long service life.

Insensitive to changes in the viscosity of

the liquid to be measured, especially

suitable for the measurement of liquids

with high viscosity.

Simple structure, small outline

dimensions and light weight.

Easy to install, no need to install a

straight tube segment in front of the

meter.

Low pressure loss.

Unaffected by viscosity, liquid viscosity of

1-300 MPA.S.

200-1000

Performance (Error And Pressure Loss Curves) Error %

% of Max. flow rate

1. Aviation gasoline 0.7mPa·s 3. Light diesel oil 5mpa·S

2. Water 1mpa·s 4. Pressure transmitter oil 20mpa·s

50

Product

BAIC GROUP

/H

Caliber range

流量范围M3

Pressure resistance level

精度等级%

Body material

±0.2%

Ambient temperature

±0.5%

℃

Process connection

Display dial

介质温度 温型0～200℃

Power supply voltage

普通型-10～70℃ 高

80 12-60 8-60 6-60 3-30 30-60 20-60 12-60 10-60

65 8-40 5-40 4-40 2-20 20-40 15-40 8-40 6.5-40

50 4.8-24 3-24 2.4-24 1.2-12 12-24 8-24 4.8-24 4-24

40 3-15 2-15 1.5-15 0.75-7.5 7.5-15 5-15 2-15 2.5-15

25 1.5-6 0.8-6 0.6-6 0.3-3 3-6 2-6 1.2-6 1-6

20 0.75-3 0.4-3 0.3-3 0.15-1.5 1.5-3 1-3 0.6-3 0.5-3

15 0.3-1.5 0.15-1.5 0.075-0.75 0.75-1.5 0.65-1.5 0.3-1.5 0.25-1.5

10 0.08-0.4 0.04-0.4 0.02-0.2 0.02-0.4 0.15-0.5 0.1-0.5 0.08-0.5

被测液体粘度mPa·s

口径DN 0.6-2 2-8 8-200 0.3-0.8 0.8-2 2-8 8-200

MPA

公称压力

6.3MPA 4.0MPA 2.5MPA 6.3MPA 4.0MPA 2.5MPA

≤DN50 ≤DN100 ≥DN150 ≤DN50 ≤DN100 ≥DN150

1.6MPA

铸铁型 铸钢型 不锈钢 技术参数

型号

04

耐压等级及流量范围对照表

最大流量的%

压力损失曲线

流量一误差曲线

误差% 压力损失曲线MPA

0.2级流量计误差和压力损失曲线图

2.任何液体缩少流量量程比情况下，用精度调节装置可搞高流量计精度

1.图中各种不同液体可用精度调节装置将流量计误差调整在轴上下，使佳值。

03 性能（误差和压力损失曲线图）

本体材质 铸铁 铸钢 304 316

显示表盘 指针式 数字式 信号输出 脉冲 4-20MA RS485

耐压等级 0.6MPA 1.6MPA 2.5MPA 4.0MPA 6.3MPA

过程连接 法兰式 实用介质 液体

环境温度 -20～60℃ 介质温度 -10～70℃ 高温0～200℃

供电电压 12-24V DC 二线制

口径范围 DN6-DN200 精度等级 ±0.2% ±0.5%

2、水 1mPa·s 4、变压器油 20mPa·s

1、航空汽油 0.7mPa·s 3、轻柴油5mPa·s

最大流量的%

压力损失曲线

流量一误差曲线

流量%

0.5级流量计误差和压力损失曲线图

Accuracy level

Class 0.2 Flow Meter Error and Pressure Loss Curves Flow Rate-Error Curve

Flow Rate-Error Curve

Pressure Loss Curve

% of Max. flow rate

Pressure loss curve Mpa Flow rate %

Class 0.5 Flow Meter Error and Pressure Loss Curves

Flow Rate-Error Curve

Pressure Loss Curve

Note: 1. The flow meter error can be adjusted above and below the 0-axis by the precision adjusting device for different

liquids in the figure, so that the error reaches the optimal value.

2. In case of any liquid reducing the flow rate range ratio, the accuracy of the flow meter can be improved by

using the accuracy adjustment device.

Pressure Rating and Flow Range Comparison Table

Medium

temperature °C

Nominal

pressure MPA

Accuracy level

%

Caliber

DN

Normal type -10~70°C High temperature type 0~200°C

Flow rate range M3/H

Measured liquid viscosity mPa·s

Model

Technical

parameters

Cast iron type Cast steel type Stainless steel

12-24V DC 2-wire system

Pointer type Digital type

Flange type

Cast iron cast steel 304 316

Medium temperature

Practical medium

Signal output

-10~70°C High temperature 0~200°C

Liquid

Pulse 4-20MA RS485

51

Normal type

High temperature type

High viscosity type viscosity 200-1000mpa·s

Product

BAIC GROUP

口径(mm)：

介质密度：

介质粘度(mPa.s)：在()℃

介质温度(℃)：最小、常用、最大

流量范围(m³/h)：最小、常用、最大

被测介质的名称：

: 订货须知订货请写明下列内容

±0.5%

±0.2%

L

K

隔爆型EXDIIBT4-CT6

粉尘型EXTBIIICT80℃ DB

本安型EXiaIIBT4-CT6

非防爆

T

C

B

P

数字显示+RS485输出

数字显示+4-20MA信号输出

24V三线制光电发信器

12V三线制光电发信器

现场指针指示+4-20MA信号输出

现场指针指示

J

G

K

H

F

E

6.3MPA

4.0MPA

2.5MPA

1.6MPA

1.0MPA

6

5

4

3

2

DN 10-200

精度等级

防爆等级

汽油专用型

食品型

保温夹套型

高粘度型 粘度200-1000mPa·s

高温型

普通型

316

304

铸钢

铸铁

Q

SP

U

N

T

C

S

B

E

A

结构形式

本体材质

输出信号

公称压力

公称通径

bslc 椭圆齿轮流量计

05

流量计选型表

200 68-340 45-340 34-340 17-174 170-340 180-340 68-340 56-340

150 38-190 24-190 19-190 9.5-95 95-190 64-190 38-190 32-190

100 20-100 13-100 10-100 5-50 50-100 34-100 20-100 16-100

铸铁型 铸钢型 不锈钢 技术参数

Model 型号

Technical

parameters

Cast iron type Cast steel type Stainless steel

Flow Meter Selection Table

Elliptical Gear Flow Meter

Nominal

diameter

Body material

Structural form

Nominal pressure

Output signal

Accuracy level

Explosion-proof level

Cast iron

Cast steel

Insulated jacket type

Food type

Gasoline only type

On-site pointer indication

On-site pointer indication + 4-20MA signal

output12V 3-wire system photoelectricity

transmitter

24V 3-wire system photoelectricity transmitter

Digital display + 4-20MA signal output

Digital display + RS485 output

Non-explosionproof

Flameproof EXDIIBT4-CT6

Intrinsically safe type EXIAlIBT4-CT6

Dust type EXTBIIICT 80°C DB

· Ordering information, please specify the following when ordering

Measured medium name:

Flow rate range (m³/h): minimum, common, maximum

Medium temperature (°C): minimum, common, maximum

Medium viscosity (mPa·s): at ()°C

Fluid pressure (MPa): minimum, common, maximum

Medium density:

Caliber (mm):

Flange requirements:

Accuracy requirements: