LKQ Thermal Mass Gas Flow meter

LKQ series thermal type gas mass flowmeter is a mass flow measurement and monitoring meter,which can detect  air, natural gas, hydrogen, oxygen, chlorine, nitrogen and ammonia, ammonia, coal gas, phosgene, flue gas and various chemical mixtures, without pressure and temperature compensation. It can be widely used in petroleum, chemical, metallurgy, electric power, water treatment, paper, food, medicine, cement, textile and various production, scientific research units for process control and gas flow measurement.



Features

■ Direct measurement of mass flow of gas without pressure and temperature compensation;

■High repeatability, high reliability, high stability and high precision;

■Range range width: up to 1000:1 or more;

■Explosion-proof, anti-corrosion design, suitable for harsh conditions, corrosive occasions;

■High sensitivity, especially suitable for flow measurement of large diameter and low flow rate;

■Eextremely small pressure loss and almost negligible;

■Diverse structure, flexible installation, convenient loading and unloading, easy to use, basically maintenance;

■ LCD display, clear and intuitive, showing both instantaneous flow and cumulative flow, so that you can see more clearly and more directly.


Product Classification                                                                           Table 1

Product classification form


Instrument selection                                                                                            Table 2

LKQ

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Code description

Installation form

A1

Plug-in type

A2

Pipe mounting type

Power supply

B1

220VAC

B2

24VDC

Output signal

C1

4~20mA

C2

RS485

C3

HART

Whether the meter has a display

D1

No display at the meter head

D2

Header instantaneous flow display

D3

Header instantaneous and cumulative flow display

Whether it has intelligent flow totalizer

E1

No flow totalizer

E2

With intelligent flow totalizer

Special requirements

F1

No special requirements

F2

Flameproof

F3

Corrosion resistant (sensor is tantalum material)

F4

High temperature type (150-250)

Flowmeter and pipe seal connection

L1

Continuous flow assembly and disassembly device (ball valve) <0.8Mpa

L2

Continuous flow assembly and disassembly device (ball valve) + high pressure seal assembly <2.0Mpa

L3

Simple threaded assembly <0.8Mpa

L4

Threaded component + high pressure seal assembly <2.0Mpa

W1

Flange type components >2.0Mpa

W2

Flange type heat dissipation component (high temperature type)

W3

The sampling pipe is flanged to the pipe under test on site

W4

The sampling pipe is threaded to the pipe under test on site

Practical pipe diameter

    

Based on the actual inner diameter of the pipe at the user site (for example, the inner diameter of the pipe is 300mm, it is indicated by the number 300)


Product structure size and installation

1、Structure size                                                                                                      Table 3

Nominal diameter

Overall dimension

Flange dimension

DNmm

Lmm

Hmm

Dmm

D1mm

D2mm

25

125

320

115

85

65

40

135

345

150

110

84

50

140

358

165

125

99

80

194

390

200

160

132

100

230

410

220

180

156

2、Installation requirements

Flow meter installation requirements

a. The length of the straight pipe section of the pipe to be tested at the installation of the flowmeter shall meet: upstream 20D distance, downstream 10D distance (D is the inner diameter of the pipe). By using our rectifying flowmeter (pipe diameter ≤ DN100), the length requirements of the front and rear straight pipe sections can be greatly reduced.

b. The flow regulating valve should be installed as least 10D far from downstream of the flowmeter . If it must be installed at the front end, it should be far away from the measuring point.


Product Tags flange type thermal gas mass flowmeter          mass flowmeters          gas flowmeters          mass probar flowmeter          coriolis mass flowmeter          natural gas flowmeters          gas roots flowmeter          roots flowmeter for gas          thermal mass         

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