The metal tube float flowmeter adopts a variable area measurement principle 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.
The float of the metal tube float flowmeter moves upwards with the change of flow rate in the measuring tube, and at a certain position, the buoyancy and gravity of the float reach equilibrium. At this time, the circulation gap area between the float and the orifice plate (or cone tube) remains constant. The annular gap area is directly proportional to the rising height of the float, that is, the position where the float rises in the measuring tube represents the size of the flow rate. The change in the position of the float is transmitted by the internal magnet to the external indicator, so that the indicator correctly indicates the current flow rate value. This means that the indicator housing does not come into direct contact with the measuring tube, so even if limit switches or transmitters are installed, the instrument can be used under high temperature and high pressure working 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.
Measurement section features:
1. Sturdy all metal structure design float flowmeter
2. Measurement tube indicator designed with independent concept
3. Stainless steel, Hastelloy, titanium, PTFE material measurement systems can be selected
4. Low pressure loss design
5. Short stroke, small structural design, total instrument height of 250
6. Magnetic coupling structure ensures data transmission and signal stability
7. Insulation or heat tracing jacket
9. Vertical, horizontal, and various installation methods are more suitable for different usage scenarios
10. Suitable for flow measurement of small caliber and low velocity media
11. Reliable work, minimal maintenance, and long lifespan
12. Not high requirements for straight pipe sections
13. Wide traffic ratio 10:1
14. Dual row large LCD display, optional on-site instantaneous/cumulative flow display, can be equipped with backlight
15. Single axis sensitive indication
16. Non contact magnetic coupling transmission
17. All metal structure, suitable for high temperature, high pressure, and highly corrosive media
18. Can be used in flammable and explosive hazardous environments
19. Choose a two-wire system, battery, and AC power supply method
20. Multi parameter calibration function
21. Equipped with data recovery, data backup, and power down protection functions
Main technical parameters:
Measurement range: Water (20 ℃) 1-200000 l/h
Air (20 ℃, 0.1013MPa) 0.03-4000m3/h; Refer to the flow chart, special flow rates can be customized
Range ratio: Standard 10:1; Special type 20:1
Accuracy: Standard type 1.5 level; Special Type 1.0 Level
◇ Pressure rating: Standard type: DN15-DN50 4.0MPa DN80-DN200 1.6MPa
Special type: DN15-DN50 25MPa DN80-DN200 16MPa
The pressure rating of the jacket is 1.6MPa; Special types should be negotiated with the factory before selection and ordering
Pressure loss: 7kPa-70kPa
◇ Medium temperature: Standard type: -80 ℃ -+200 ℃: PTFE: 0 ℃ -85 ℃
High temperature type: up to 400 ℃
◇ Medium viscosity: DN15: η<5mPa. s (F15.1-F15.3)
the <30mPa.s(F15.4-F15.8)
DN25：the <250mPFa.s
DN50-DN150: the <300mPa. S
◇ Environmental temperature: LCD type -30 ℃ -+85 ℃
Pointer type -40 ℃ -+120 ℃
◇ Connection form: Standard type: DIN2501 standard flange
Special type: Any standard flange or thread provided by the user
◇ Cable interface: M20 * 1.5
Power supply: Standard type: 24VDC two-wire 4-20mA (10.8VDC-36VDC)
Communication type: 85-265VAC 50HZ
Battery type: 3.6V@7.5AH Lithium batteries can be used continuously for more than three years.
◇ Alarm output: upper or lower limit instantaneous flow alarm
Open collector output (maximum) 100mA@30VDC Internal impedance of 100 ohms
Relay output (contact capacity) 1A@30VDC or 0.25A@250VAC or 0.5A@125VAC ）
◇ Pulse output: Accumulated pulse output, with the smallest interval of 50 milliseconds
◇ LCD display: Instantaneous flow display value range: 0-50000
Accumulated traffic display value range: 0-99999999 (with decimal point)
◇ Protection level: IP65
Explosion proof mark: intrinsically safe type ia Ⅱ CT5; Explosion proof type d Ⅱ BT6
　　Intelligent metal tube float flowmeter
Suitable for flow measurement of small caliber and low velocity media; Reliable work, minimal maintenance, and long lifespan; The requirements for straight pipe sections are not high; A wider flow ratio of 10:1; Dual row large LCD display, optional on-site instantaneous/cumulative flow display, with backlight single axis sensitive indication; Non contact magnetic coupling transmission; All metal structure, suitable for high temperature, high pressure, and highly corrosive media; Can be used in flammable and explosive hazardous environments; Optional two-wire system, battery, and AC power supply methods; Multi parameter calibration function; Equipped with data recovery, data backup, and power down protection functions
Technical Specifications
Measurement range: Water (20 ℃) 1-200000 l/h Air (20 ℃, 0.1013MPa) 0.03-4000m3/h Refer to the flow meter, special flow rates can be customized
Range ratio: Standard 10:1 Special 20:1
Accuracy: Standard Type 1.5 Special Type 1.0
Pressure rating: Standard type: DN15-DN50 4.0MPa DN80-DN200 1.6MPa
Special type: DN15-DN50 25MPa? DN80-DN200 16MPa
The pressure rating of the jacket is 1.6MPa
Special types should be negotiated with the factory before selection and ordering
Pressure loss: 7kPa-70kPa
Medium temperature: Standard type: -80 ℃ -+200 ℃: PTFE: 0 ℃ -85 ℃
High temperature type: up to 400 ℃
Medium viscosity: DN15:<5mPa.sF15.1-F15.3
<30mPa.sF15.4-F15.8
DN25: <250mPFa.s
DN50-DN150: <300mPa. s
Environmental temperature: LCD type -30 ℃ -+85 ℃
Pointer type -40 ℃ -+120 ℃
Connection form: Standard type: DIN2501 standard flange
Special type: Any standard flange or thread provided by the user
Cable interface: M20 * 1.5
Power supply: Standard 24VDC two-wire 4-20mA (10.8VDC-36VDC)
Communication type: 85-265VAC? ?50HZ