Description
Based on the principle of torque balance, lwwyn-15 turbine flowmeter belongs to velocity flow meter. The sensor has the characteristics of simple structure, light weight, high precision, good repeatability, sensitive response, easy installation, maintenance and use. It is widely used in petroleum, chemical industry, metallurgy, water supply, paper making and other industries. It is a flow measurement and energy-saving instrument.
The sensor and display instrument are used together. It is suitable for measuring the liquid in the closed pipe, which has no corrosive effect with stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3 and cemented carbide, and has no fiber, particle and other impurities. If it is matched with the display instrument with special function, it can also carry out quantitative control, over quantity reminder, etc.
The sensor is suitable for the medium whose viscosity is less than 5 × 10-6m2 / s at the working temperature. For the liquid whose viscosity is more than 5 × 10-6m2 / s, the sensor should be used after solid liquid calibration.
model selection
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Instrument type |
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Turbine flow sensor |
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Function type |
A |
No display, ordinary three-wire pulse |
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P |
Non-display, explosion-proof three-wire pulse |
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N |
No display, two-wire 4-20MA output |
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B |
LCD, battery power and DC24V dual power supply, support three-wire pulse output |
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C |
LCD, DC24V power supply, two-wire 4-20MA output, support three-wire pulse output (optional) |
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R |
LCD, RS485 communication, lithium battery and DC24V dual power supply, support three-wire pulse output |
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H |
LCD, hart communication, lithium battery and DC24V dual power supply, support three-wire pulse output |
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Measuring diameter |
4 |
Path: 4 mm, flow range: 0. 04-0.25m3/h |
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6 |
Path: 6mm, flow range: 0.1-0.6m3/h |
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10 |
Path: 10 mm, flow range: 0. 2-1.2m3/h |
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15 |
Path: 15mm, flow range: 0.6-6m3/h |
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20 |
Path: 20 mm, flow range: 0. 7-7m3/h |
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25 |
Path: 25mm, flow range: 1-10m3/h |
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32 |
Path: 32 mm, flow range: 1. 5-15m3/h |
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40 |
Path: 40mm, flow range: 2-20m3/h |
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50 |
Path: 50mm, flow range: 4-40m3/h |
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65 |
Path: 65mm, flow range: 7-70m3/h |
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80 |
Path: 80mm, flow range: 10-100m3/h |
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100 |
Path: 100mm, flow range: 20-200m3/h |
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125 |
Path: 125mm, flow range: 25-250m3/h |
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150 |
Path: 150mm, flow range: 30-300m3/h |
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200 |
Path: 200mm, flow range: 80-800m3/h |
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Meter form |
Z |
One body type |
Conventional form |
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F |
Fractal type |
Suitable for types B, C, R, H |
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Interface mode |
L1 |
Pipe thread |
Suitable for path DN4-50 |
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L2 |
Flange |
Suitable for all measured paths |
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L3 |
Clamp hoop |
Suitable for DN15-50,other specifications can be customized |
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L4 |
Plug-in type |
Suitable for measuring pipes with diameters above DN100 |
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L5 |
Clamping type |
Suitable for DN15-50, other specifications can be customized |
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Body material |
D1 |
304 |
Pipe body and flange (or hoop joint) |
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D2 |
316 |
Pipe body and flange (or hoop joint) |
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Movement material |
E1 |
2Cr13 |
Impeller |
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E2 |
Dual phase steel |
Impeller and guide parts |
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Pressure |
Y1 |
1 |
Suitable for clamp connection form |
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Y2 |
1.6 |
For DN15-100 |
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Y3 |
2.5 |
Suitable for 4-6-10 thread connection |
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Y4 |
High pressure customization |
Customization |
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Accuracy class |
1 |
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Standard precision |
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0.5 |
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High precision |
Lwgy technical parameters
The sensor of dn4-dn40 caliber is threaded connection with working pressure of 6.3MPa; the sensor of dn50-dn200 caliber is flange connection with working pressure of 2.5MPa; the sensor of dn4-dn 10 caliber is equipped with front and rear straight pipe sections.
Our company can match the front and rear straight pipe section for the sensor with diameter above DN 15.
(2) Medium temperature: - 20 ～ + 120 ℃
(3) Ambient temperature: - 20 ～ + 65 ℃
(4) Power supply: voltage + 6-24 VDC, current: ≤ 10 mA
3.6 V / 0.3 Ma on battery. The 485 communication current increases by 0.6ma.
Transmission distance: the distance between sensor and display instrument can reach 1000m
