Anhui Tiankang Group, flow meters,LZ metal rotor flowmeter product introduction:

LZ metal rotor flowmeter is suitable for measuring the flow rate of liquids, gases, and steam, especially for measuring the flow rate of low velocity media. It fully utilizes its advantages in small caliber and low velocity media flow measurement and is widely used in industries such as chemical and food and pharmaceutical. It has the characteristics of simple structure, reliable operation, wide applicability, accurate measurement, easy installation, and high temperature and high pressure resistance. This product has both regular and anti-corrosion types, which are divided into on-site indication type (HJ-LZZ) and electric remote transmission type (HJ-LZD), regular flow sensor, instrument material (1Cr18Ni9Ti), and anti-corrosion type (1Cr18Ni9Ti) lined with PTEF. If the medium measured by the metal rotor flowmeter contains ferromagnetic particles, a magnetic filter should be installed at the inlet of the flowmeter. Its material should be the same as the corresponding flowmeter.

Working principle of metal rotor flowmeter:
The flowmeter consists of two components, one of which is a conical tube that gradually expands from bottom to top; The other component of the rotor flowmeter is a rotor that is placed in a conical tube and can move freely along the centerline of the tube. When measuring the flow rate of a fluid with a rotor flowmeter, the measured fluid flows in from the lower end of the conical tube, and the flow of the fluid impacts the rotor, generating a force on it (the magnitude of this force varies with the flow rate); When the flow rate is large enough, the force generated lifts the rotor and raises it. At the same time, the measured fluid flows through the annular section between the rotor and the conical tube wall, and exits from the upper end. When the force acting on the rotor during the flow of the measured fluid is exactly equal to the weight of the rotor in the fluid (known as the displayed weight), the force on the rotor is in equilibrium and stays at a certain height. Analysis shows that; The position and height of the rotor in the conical tube correspond to the flow rate it passes through. Therefore, by observing the position and height of the rotor in the conical tube, the corresponding flow rate value can be obtained. In order to prevent the rotor from touching the pipe wall when moving up and down on the centerline of the conical tube, two methods are usually used: one is to install a guide core rod at the center of the rotor to keep the rotor moving up and down on the centerline of the conical tube, and the other is to open a groove at the edge of the rotor disk. When the fluid flows through the rotor from bottom to top, it bypasses the rotor while passing through the groove to generate a reverse thrust, causing the rotor to continuously rotate around the centerline, thus keeping the rotor from touching the pipe wall during operation. The rotor material of the rotor flowmeter can be made of stainless steel, aluminum, bronze, etc.

Technical parameters of metal rotor flowmeter:
(1) Basic
Measurement range: Water (20 ℃) 2.5-150000L/h, air (20 ℃, 0.1013MPa) 0.07-4000Nm3/h
Range ratio: 10:1
Accuracy: 1.5/2.5
Work pressure: ≤ 6.4MPa
Working temperature: -40~350 ℃ (fluoroplastic lining -10~80 ℃)
Environmental temperature: -20~80 ℃
Medium viscosity: DN15 ≤ 5mPa. S, DN25-DN150 ≤ 250mPa. S
Tube material: 1Cr18Ni9Ti, 316L, lined with PTEF, etc
Process connection: flange, or as provided by the user
Steam fitting: flange, DN15/PN1.6， Or provided by the user

(2) Remote transmission device
① SK5W1-1 angular displacement transmitter
Basic error: 1.5% F.S
Output signal: 4-20mA
Load impedance: 350 Ω
Power supply voltage: 24VDC
Environmental temperature: -30~80 ℃
Outlet: M20 × 1.5
Explosion proof mark: ExibIICT4

② JTE-HD transmitter
Power supply impact:<0.1% (excluding digital resolution [70 μ A)
Load impact:<0.1% (excluding digital resolution [70 μ A)
Current loss: 4~21.6mA, relative to 0% of the measured value
Load impedance: 0-800
Working voltage: 12.8-30VCD
Two wire Rext [K Ω]=(power supply [V] -12.7)/22mA
Output signal: 4-20mA
Environmental temperature: -25~80 ℃
Outlet: M20 × 1.5
Explosion proof mark: ExibIICT6