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Home Thermal mass Gas flowmeter LKQ Thermal Gas Mass Flow Meter

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LKQ Thermal Gas Mass Flow Meter

LKQ thermal gas mass flow meter 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. Widely used in: flow measurement of steel plant, coking plant gas.

  • Product Origin:

    China
  • Shipping Port:

    Huangpu port
  • Lead Time:

    3~5 Working Days
  • MOQ:

    1
Product Details

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

LKQ-A1 plug-in type

LKQ-A1 plug-in type

   Applicable to gas mass flow measurement with pipe diameter greater than DN80. The meter has features such as high precision, good repeatability, high reliability, wide range ratio, fast response, simple and convenient installation, basic free of maintenance, almost no pressure loss, pipe diameter has a very small influence on the price. It has become more and more widely used in the field of gas measurement. Especially after the design with the ball valve installation, it breaks the history that the gas must be shut down when installing the flowmeter on site, which greatly facilitates the use.

LKQ-A2 pipe mounting type

LKQ-A2 pipe mounting type 

  Applicable to gas mass flow measurement with pipe diameter less than DN65. It uses a more beautiful design, with double circlip, ten-layer V-type PTFE gasket, and flange with concave and convex surface,  so that the meter will not leak under high pressure, which is more convenient for use, disassembly and maintenance.

LKQ-A2F3 anti-corrosion type

LKQ-A2F3 anti-corrosion type

  He anti-corrosion type thermal gas mass flowmeter has all the features of the conventional thermal mass flowmeter and the sheath of the sensor is made of special metal material tantalum with good acid corrosion resistance, and in the concentration of 28~29% hydrochloric acid ( at this concentration, hydrochloric acid is the most corrosive to metals.) the wall thickness will be corroded by 4u every year. If the wall thickness of the sheath is to be completely corroded, it takes more than ten years,moreover, the corrosive properties of chlorine, phosgene and other gases actually used are not as corrosive as the concentration of 28, 29% hydrochloric acid solution, and the PBF probe and the pipe to be tested are reliably sealed.


Meter modeling                                                                                                                                     Table 1

LKQ

-□

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)


Installation Dimension and Requirements

Installation dimension(see Table 2)

Thermal mass flow meter

                                                                                                                                                                           Table 2

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


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.

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