Pointer indicating metal tube float flowmeter

Product Description:

The QX-LZZ series metal tube float flowmeter is also known as metal float flowmeter, metal tube rotor flowmeter, and metal rotor flowmeter. Adopting the principle of variable area measurement, it is suitable for measuring liquids and gases. All metal structure, including pointer 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 mode functions, with magnetic filters and special specifications. Widely used in petroleum, chemical, power generation, pharmaceuticals, food, water treatment, etc. During the flow measurement process under complex and harsh environmental conditions, as well as various media conditions.
Pointer indicating metal tube float flowmeterSuitable for flow measurement of small caliber and low velocity media; Reliable work, minimal maintenance, and long lifespan; The metal tube float flowmeter does not have high requirements for the straight pipe section; 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; Metal tube float flowmeter with 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; The metal tube float flowmeter is equipped with data recovery, data backup, and power failure protection functions

Principle:
The float in the measuring tube moves upwards with the change of flow rate, and the buoyancy and gravity of the float reach equilibrium at a certain position. At this time, the circulating annular gap area between the float and the orifice plate (or cone tube) remains at a certain level, and the annular gap area is proportional to the rising height of the float. That is, the position of the float rising 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 flow rate value at this time. 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.

Features:
1. Sturdy all metal structure design float flowmeter
2. Measurement tube indicator designed with independent MnOdular 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
8. Vertical, horizontal, and various installation methods are more suitable for different usage scenarios

Technical Specifications:
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 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. s (F15.1-F15.3)
<30mPa.s(F15.4-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 specified by the user
Cable interface: M20 * 1.5
Power supply: Standard 24VDC two-wire 4-20mA (10.8VDC-36VDC)
Communication type: 85-265VAC 50HZ
Battery type: 3 6V@4AH Nickel-metal hydride battery
Alarm output: upper or lower limit instantaneous flow alarm
Standard type: open collector output (maximum) 100mA@30VDC Internal impedance of 100 ohms
Special type: Relay output (maximum contact capacity) 5A@250VAC ）
Pulse output: Accumulated pulse output, minimum interval of 50 milliseconds
LCD display: instantaneous flow display value range: 0-50000
Accumulated traffic display value range: 0-
Protection level: IP65
Explosion proof mark: intrinsically safe type ia Ⅱ CT6, explosion-proof type d Ⅱ CT6

Product selection: