1、 Overview

ZK-LWGY series turbine flow sensorIt is a new generation turbine flowmeter that has been optimized and designed by absorbing advanced technologies from domestic and foreign flow meters. It has the characteristics of simple structure, lightweight, high accuracy, good reproducibility, sensitive response, and easy installation, maintenance, and use. It is widely used to measure liquids in closed pipelines that do not corrode with stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3, and hard alloys, and have no impurities such as fibers or particles. The liquid has a kinematic viscosity of less than 5 × 10-6m2/s at working temperature. For liquids with a kinematic viscosity greater than 5 × 10-6m2/s, the flowmeter can be used after real liquid calibration. If paired with display instruments with special functions, it can also perform quantitative control, over limit alarm, etc., making it an ideal instrument for flow measurement and energy conservation.

This type of turbine flow product itself does not have on-site display function, and only transmits the flow signal in the form of pulses for remote output. The instrument is inexpensive, highly integrated, and compact in size, making it particularly suitable for use with computer control systems such as secondary displays, PLCs, and DCS.

2、 Product Features

1. High precision, generally up to ± 1% R, ± 0.5% R, and high-precision models up to ± 0.2% R;

2. Good repeatability, short-term repeatability can reach 0.05%~0.2%. It is precisely because of its good repeatability that frequent calibration or online calibration can achieve extremely high accuracy, making it a preferred flowmeter in trade settlement;

3. Output pulse frequency signal, suitable for total measurement and computer connection, no zero drift, strong anti-interference ability;

4. Can obtain high frequency signals (3-4kHz) with strong signal resolution;

5. Wide range, with a medium to large caliber of up to 1:20 and a small caliber of 1:10;

6. Compact and lightweight structure, easy installation and maintenance, and high circulation capacity;

7. Suitable for high voltage measurement, there is no need to open holes on the instrument body, making it easy to make high voltage instruments;

8. There are various types of specialized sensors that can be designed according to the specific needs of users, such as low-temperature, bidirectional, downhole, sand mixing, etc;

9. Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.

3、 Basic parameters and technical performance

1.Technical performance: Table 1

4、 Instrument selection

Table 3

Model number								Explanation
ZK-LWGY─	□	/□	/□	/□	/□	/□	/□
state-owned call open up or clear out by poking or jabbing footpath	4							4mmThe standard range is 0.04-0.25m3/h, and the wide range is 0.04-0.4m3/h
	6							6mmThe standard range is 0.1-0.6m3/h, and the width measuring wheel is 0.06-0.6m3/h
	10							10mmThe standard range is 0.2-1.2m3/h, and the wide range is 0.15-1.5m3/h
	15							15mmThe standard range is 0.6~6m3/h and the wide range is 0.4~8m3/h
	20							20mmThe standard range is 0.8-8m3/h, and the wide range is 0.4-8m3/h
	25							25mmThe standard range is 1-10m3/h, and the wide range is 0.5-10m3/h
	32							32mmThe standard range is 1.5-15m3/h, and the wide range is 0.8-15m3/h
	40							40mmThe standard range is 2-20m3/h, and the wide range is 1-20m3/h
	50							50mmThe standard range is 4-40m3/h, and the wide range is 2-40m3/h
	65							65mmThe standard range is 7-70m3/h, and the wide range is 4-70m3/h
	80							80mmThe standard range is 10-100m3/h, and the wide range is 5-100m3/h
	100							100mmThe standard range is 20-200m3/h, and the wide range is 10-200m3/h
	125							125mmThe standard range is 25-250m3/h, and the wide range is 13-250m3/h
	150							150mmThe standard range is 30-300m3/h, and the wide range is 15-300m3/h
	200							200mmThe standard range is 80-800m3/h, and the wide range is 40-800m3/h
Type		N						+12VPower supply, pulse output, high level ≥ 8V, low level ≤ 0.8V
accuracy class			05					Accuracy level 0.5
			10					Accuracy level 1.0
Turbine Type				W				Wide range turbine
				S				Standard turbine
texture of material					S			304stainless steel
					L			316(L) Stainless steel
Explosion proof						N		Unmarked, non explosion proof type
pressure rating							N	Conventional (refer to Table 2)
							H（x）	High voltage (refer to Table 2)

Note: DN15 to DN40 are usually threaded connections. If you wish to use flange connections, please add "(FL)" after "nominal diameter"
For example, when using a flange connected non explosion proof turbine flowmeter to measure water, pulse signal output is required. The pipeline is DN40, with an accuracy of 0.5 level, made of 304 stainless steel, and the instrument has a pressure resistance of 16MPa. The measurement range is the standard range, and the product model should be LWGY-40 (FL)/05/S/S/N/H16