Sell LZ metal tube float flowmeter LZ-32 metal tube float flowmeter direct sales

Description :

　　This product mainly consists of three basic parts: 1. Measuring tube body; 2. Cone shaped float; 3. Indicator. The displacement of the float is proportional to the flow rate, and through a magnetic coupling system, the displacement of the float is transmitted to the indicator in a non-contact manner to indicate the flow rate.

　　1、 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 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 ℃

　　2、 Structure and working principle:

　　1. Structure:

　　The FH-LZ series metal tube float flowmeter mainly consists of three parts:

　　a、 Indicator (intelligent indicator, local indicator);

　　b、 Float;

　　c、 Cone shaped measuring chamber.

　　2. Working principle:

　　When the measured medium passes through the conical measuring tube from bottom to top, a differential pressure is generated at the upper and lower ends of the float, forming an upward force. When the upward force acting on the float is greater than the weight of the float immersed in the fluid, the float rises, and the annular gap area increases accordingly. The fluid flow velocity at the annular gap immediately decreases, and the differential pressure between the upper and lower ends of the float decreases. The upward force acting on the float also decreases until the upward force is equal to the weight of the float immersed in the fluid, and the float stabilizes at a certain height. The height of the float position corresponds to the flow rate of the measured medium. The float is equipped with magnetic steel, and when the float moves up and down with the medium, the magnetic field changes with the movement of the float.

　　a、 For the in-situ type, the rotating magnetic steel in the in-situ indicator is coupled with the magnetic steel inside the float, causing rotation and driving the pointer to indicate the current flow rate through the dial.

　　b、 For intelligent indicators, a solid-state magnetic sensor in the intelligent indicator converts changes in the magnetic field into electrical signals, which are then converted into A/D signals, processed by a microprocessor, D/A output, and displayed on an LCD screen to show the magnitude and cumulative flow rate.

　　3、 Installation precautions:

　　1. The metal tube float flowmeter must be installed on a vibration free pipeline. The fluid flows through the flowmeter from bottom to top, and the verticality is better than 2 °. When installed horizontally, the horizontal angle is better than 2 °;

　　2. For the convenience of maintenance, replacement of flow meters, and cleaning of measuring pipelines, metal tube float flow meters installed on process pipelines should be equipped with bypass pipelines and bypass valves;

　　3. There should be a straight pipe section with a length of at least 5 times the pipe diameter at the entrance, and a 250mm straight pipe section at the outlet;

　　4. If the medium contains ferromagnetic substances, a magnetic filter should be installed; If the medium contains solid impurities, it should be considered to install a filter between the valve and the straight pipe section;

　　5. When used for gas measurement, it should be ensured that the pipeline pressure is not less than 5 times the pressure loss of the flowmeter to ensure stable operation of the float.

AfterSalesService :

• Sell LZ metal tube float flowmeter