metal tubular rotemeter

1,LZ-A type metal rote meter local indicating measuring principles

When a flow of fluid goes through straight column hollow space, the taper floater with leader reaches to one place. When the power of buoyancy A acted to floater, damping force W and floater weight G reach to an equal state, the floater location can stand for flow of that time. Every height of floater can represent an instant value of flow. And then transmit to indicator by the couple action of magnetic steel in floater with the magnetic steel in indicator, to drive the pointer turnover, lobe plate works with pointer straightly indicate the flow value.

2), main technique target

Measure ranges: water 2.5~63000L/H

Air0.07~2000m3/h(0.1013MPa20)

Proportion of measure max. value to min. value:10:1(remark: special specification meter)

Can choose accuracy class besides this:1.5:2.5

Max. work pressure:1.6MPa, 2.5MPa, 4.0MPa,6.4MPa.

remark: can produce pressure >6.4MPa meters specially.

Temperature: fluid temperature:-80~+300(inside lined with fluoroplastic, temperature is 0~+80),environment temperature: -20~+50

Liquid medium viscosity:Φ15<5MPa.S

Accuracy Φ25~Φ100<250MPa.S

Connecting type: flange connect flange standard 1.6, 2.5, 4.0, 6.4MPa refer to JB81.82-59. Remark: any special specifications (include the product imported) can subject to customers request.

Total height:250mm

Protection class:IP65

Dustproof class: talcum powder sediment yield and sediment place are same to other dusts, wont affect the normal working.

3), flow range:

e.g. general type diameter 15mm:air1.6~16m3/h, water63~630L/h. can viewed as anticorrosion diameter25mm:air1.6~16m3/h,water63~630L/h of product specification. Can satisfy customers special request that the diameter above 100mm.

2,LZ-B type pointer with remote transmission metal tube rote meter

LZ-B type metal tube rote meter can be substituted for importing type H27. It has simple structure, reliable, suitable to wide range of temperature, high accuracy. This type of flow meters has local display, electric remote control, and anticorrosion and explosion types. They are widely used for liquid and air flow measurement and control automatically in lines of national protection, chemical, petroleum, metallurgy, electric power, pro-environment, medical, textile. The area of transducer can adopt materials of stainless steel (1Cr18Ni12MO2Ti),OCr18Ni12MO2Ti and inside liner fluoroplastic to adapt to level measurement of anticorrosion fluid, such as chlorine air, salt water, hydrofluoric acid, nitric acid and sulphuric acid.

Electric remote transmission meter can output standard signal, and can match with complex meter and computer to realize comprehensible control.

Principle and structure

When the up-flow fluid goes through measuring tube with perforate plate, taper floater floats upward. The height of moving represents flow value, and transmit to indicator through couple connecting of magnetic steel in floater and magnetic steel in indicator. And that causes the point turnover, lobe plate make pointer indicate the flow value linearly.

2) Technique parameter (as form 1)

Proportion of maximum Value to min. value: 10:1

Accuracy class: 1.5, 2.5

Operate pressure: 1.5, 2.5, 4.0, 6.4MPa

Fluid temperature: -80~+300(inside lined with fluoroplastic flow meter0~+80)

Environment temperature: -20~+50

Liquid medium viscosity:Φ15 5MPa.S(1MPa.S=1CP)

Φ25~Φ100<250 MPa.S

Connection: flangeJB81.82-59

Total height: 250mm

3), installing size (as form 2)

4), electric feature:

Signal output: three-wire system, four-wire system, two-wire system

Linearity: ±1%

Electric source: 24VDC+10% -15%

Current consumption: ~28mA

Load resistance: 0~10Madc 0~1kΩ

4~20ADC 150~350Ω

Environment temperature: -25~+55

Explosion-proof: ExibCT5

5) magnetic filter:

If there is magnetic particulars in the fluid to be measured, magnetic filter should be added to flow meters inflow point. Magnetic filter has installed few of high strength magnetism poles rowed in helix (reduce pressure loss). The magnetic pole outside is packaged with UPVC to protect the magnetic pole be corroded.