Liquid crystal display metal tube float flowmeter

The metal tube float flowmeter adopts the principle of variable area measurement for production and research, and is suitable for measuring liquids and gases. All metal structure, including indicator type, electric remote transmission type, corrosion-resistant type, high-voltage type, jacket type, and explosion-proof type. It has standard analog signal output and on-site indication of 0-10mA and 4-20mA. Accumulation, digital communication, on-site modification of measurement parameters, different power supply functions, with magnetic filters and special specifications. Widely used in industries such as petroleum, chemical, power generation, pharmaceuticals, food, water treatment, etc. During the flow measurement process under complex, harsh environmental conditions, and various media conditions.

Metal tube float flowmeter is a commonly used variable area flow measurement instrument in industrial automation process control. It has the characteristics of small size, large detection range, and easy use. It can be used to measure the flow rate of liquids, gases, and vapors, especially suitable for measuring the flow rate of low velocity and low flow media. Its main characteristics are as follows:

01. All metal structure, sturdy and stable.

02. Short stroke, small structural design.

03. Low pressure loss design.

04. The design of a new magnetic coupling structure ensures more stable transmission signals.

05. Magnetic filters can be installed according to user requirements.

06. Can be equipped with insulation or heat tracing jacket.

07. Used for gas and liquid measurement in various industries, the measuring part can use different materials to adapt to different medium conditions.

08. Suitable for harsh environments and media with severe corrosion, it has good heat resistance and pressure resistance.

09. Intelligent dual row LCD display, optional on-site instantaneous/cumulative flow display, with backlight.

10. Optional options include two-wire system, battery, and AC power supply.

11. Equipped with data recovery, data backup, and power down protection functions.

Characteristic price

M9 indicator

1. Use a pair of coupled magnets in the indicator to complete flow indication and electrical signal conversion.

2. The ESK type signal transmitter can also have HART protocol communication function.

3. Installation can be selected within the on-site flow indicator instrument:

(1) ESK type signal transmitter with 4-20mA nonlinear output and no hysteresis;

(2) Upper and lower limit alarm switches.

The standard LZ series metal tube float flowmeter consists of a measuring tube and a local indicator. Local indicators can also be equipped with additional electrical components, suitable for measuring liquids and gases.

This flowmeter adopts the principle of variable area measurement, and the measuring component consists of a conical measuring tube and a float. The float can freely move up and down in the conical measuring tube, changing the flow area in the pipeline. As the flow rate changes, the vertical position of the float in the measuring tube also changes accordingly. The position of the float is transmitted to the dial of the indicator through a magnetic transmission system in a steel pipe, indicating the size of the flow value.

In M6, M8, M9 indicators, the rotation of the follower magnet is directly transmitted to the dial; In the M7 indicator, the rotation of the follower magnet causes the pointer to linearly indicate the magnitude of the flow rate value through a cam plate.

Technical parameters of metal tube float flowmeter:

*Measurement range: Water (20 ℃): (25-100000) L/h

Air (101325Pa, 20 ℃): (0.7-1000) M3/h

*Accuracy, etc.: 1.5, 2.5

*Environmental temperature: -25 ℃ -+55 ℃

*Medium temperature: LZZ (local display): -40 ℃~+400 ℃; LZD (Electric Remote Transmission): -80 ℃~+300 ℃ (High Temperature Type)

*Test pressure: 1.5 times the specified pressure

*Flange standards: GB/T9119, HG20592-20635, ANSI

*Protection, etc.: IP65 (dust tight, anti spray type)

*LCD function: Instantaneous flow rate: 0-5000, Cumulative flow rate: 8-bit

*Explosion proof (intrinsic safety): Exia Ⅱ CT2-T6 (limited to M9 indicator), explosion-proof: Exia Ⅱ BT1-T6 (limited to M8 indicator)

*Alarm: instantaneous flow upper and lower limits

*Power supply: Standard type: 24VDC, two-wire 4-20mA (18-30) VDC; Battery type: 3.6V, 7.5Ah lithium battery

The field of metal tube float flowmeter: widely used in petroleum, chemical, power generation, pharmaceuticals, food, water treatment, etc. During the flow measurement process under complex, harsh environmental conditions, and various media conditions.

Structure of metal tube float flowmeter

1. High temperature structure (G-type)

High temperature structure type (G-type) is used for flow measurement of media with high or low temperatures that require insulation measures for the measuring tube. The high-temperature structure increases the distance between the measuring tube and the indicator to enhance heat dissipation and increase the thickness of the insulation material, ensuring that the indicator operates within the allowable ambient temperature range. Select the 'G' type.

The G-type metal tube float flowmeter can measure the flow rate of media with temperatures ranging from -80 ℃ to+300 ℃.

2. Structure with damper device (Z-type)

The damper structure type is used for measuring the medium flow rate when the inlet flow (pressure) of the metal tube float flowmeter is unstable, especially for gas measurement. Its structure is shown in the figure

3. Clamp type structure (T-shaped)

The jacket type structure is used for flow measurement of media that require heat tracing or cooling (such as high viscosity and easy crystallization). By heating or cooling the medium in the jacket, low boiling and low freezing point fluids are prevented from vaporizing and crystallizing.

The import and export connection of the heat tracing medium should use HG20594-97 DN15 PN1.6 flange for the standard type, and other flange specifications can be indicated by the manufacturer. The pressure rating of the jacket is 1.6MPa

The structure of the jacketed flowmeter is shown in the flange and external dimensions diagram of the FA standard metal tube float flowmeter.

4. High voltage structure (Y-shaped)

High pressure type structure is used for flow measurement when the measured medium pressure is greater than the standard pressure level. The high-voltage structure is shown in the following figure. The high pressure of FFM64 series can reach 32MPa. In addition, high-pressure flow meters can be provided with built-in magnetic filter types, with an installation height of 350mm. FA, FB, and FC types have a high pressure of 10MPa.