Type of liquid turbine flowmeter

NegotiableUpdate on 12/21

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Nature of the Manufacturer: Producers

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Overview

The type of liquid turbine flowmeter consists of a turbine flow sensor and a display head. It is manufactured by our factory using * technology and is one of the ideal flowmeters for liquid flow measurement.

Product Details

Type of liquid turbine flowmeter

1、 Overview:

The liquid turbine flowmeter is composed of a turbine flow sensor and a display head. It is manufactured by our factory using * technology and is one of the ideal flowmeters for liquid flow measurement. It has the characteristics of simple structure, high precision, and easy installation, maintenance, and use. Widely used in petroleum, chemical, metallurgical, water supply, papermaking, environmental protection, food and other fields, it is suitable for measuring liquids in closed pipelines that do not corrode stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3, hard alloys, and have no impurities such as fibers and particles. If used in conjunction with display instruments with special functions, it can be used for automatic quantitative control, over limit alarm, and other purposes.

Type of liquid turbine flowmeter

2、 Characteristics:

1. The pressure loss is small, and the impeller has anti-corrosion function.
2. Has high resistance to electromagnetic interference and vibration, reliable performance, and long working life.
3. Adopting advanced ultra-low power single-chip microcomputer technology, the whole machine has strong functions, low power consumption, and excellent performance. Intelligent flow display with non-linear accuracy compensation function. The accuracy of the correction formula is better than 0.02%.
4. The instrument coefficient can be set online through buttons and displayed on an LCD screen, which is intuitive, clear, and highly reliable.
5. The intelligent turbine flowmeter adopts EEPROM for power down protection of accumulated flow and instrument coefficient. The protection period is greater than 10 years.

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

·Good repeatability, short-term repeatability can reach 0.05%~0.2%, precisely due to its good repeatability, such as regular calibration or online calibration can be obtained

The accuracy of * is the preferred flowmeter in trade settlement;

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

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

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

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

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

·There are various types of sensors available, which can be designed according to the specific needs of users, such as low-temperature, bidirectional, and downhole sensors

Types, mixed sand molds, etc;

·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.

Technical performance of liquid turbine flowmeter:

1. Nominal diameter: (4-200) mm. Basic parameters are shown in Table 1;

2. Medium temperature: (-20~80) ℃, (-20~120) ℃;

3. Environmental temperature: (-20~55) ℃;

4. Accuracy: ± 0.2%, ± 0.5%, ± 1%;

5. Detector signal transmission line system: three wire voltage pulse (three core shielded cable);

6. Power supply: Voltage: 12V ± 0.144V, Current: ≤ 10mA;

7. Output voltage amplitude: High level ≥ 8V, low level ≤ 0.8V;

8. Transmission distance: The distance from the sensor to the display instrument can reach 500 meters;

9. On site display power supply: 3V (powered by lithium battery, can be used continuously for 3 years);

10. Display mode: On site LCD displays 6-digit instantaneous flow and 8-bit cumulative flow;

11. On site display with signal output power supply: 24V; 4-20mA two-wire current output, remote transmission distance of 1000 meters.

Selection Table for Liquid Turbine Flowmeters:

KY	LWGY□	□□□	□	□	□	Explanation
class type	LWGYA					Flow sensor, pulse output three wire system,+12V power supply;
	LWGYB					On site display type 3V battery power supply;
	LWGYC					On site display with 4-20mA, two-wire current output,+24V power supply;
	LWGYD					Transmitter; 4-20mA output current output,+24V power supply;
public call, name, say, weigh through path		4				Normal flow range m³/h	0.04～0.25	Expand traffic range m³/h	0.04～0.4
		6					0.1～0.6		0.06～0.6
		10					0.2～1.2		0.15～1.5
		15					0.6～6		0.4～8
		20					0.8～8		0.45～9
		25					1~10		0.5～10
		32					1.5～15		0.75～15
		40					2~20		1~20
		50					4~40		2~40
		65					7~70		3.5～70
		80					10~100		5~100
		100					20~200		10~200
		125					25~250		12.5～250
		150					30~300		15~300
		200					80~800		40~800
explosion-proof						Unmarked, non explosion proof type
explosion-proof			B			Explosion-proof type
accuracy class				A		Accuracy level 0.2
				B		Accuracy level 0.5
				C		Accuracy level 1.0
Turbine type					A	Normal flow range
Turbine type					B	Expand traffic range
Instructions: Sensors with diameters ranging from DN4 to DN40 are threaded connections, equipped with front and rear straight pipe sections and filters, with a maximum pressure of 6.3 Mpa. Sensors with diameters ranging from DN50 to DN200 are flange connected, with a maximum pressure of 2.5Mpa. DN15~DN40 pipe diameter can be equipped with front and rear straight pipe sections or flexible joints, and the materials are divided into carbon steel and stainless steel. If flange connection is required for DN15~DN40 pipe diameter, please specify when ordering. ★ Instructions for ordering high-voltage types and special requirements

Installation requirements for liquid turbine flowmeter:

1. The instrument installation adopts flange connection, threaded connection and clamping type;

2. During installation, the direction of liquid flow should be consistent with the arrow direction indicated on the sensor housing, and the upstream straight pipe section should be ≥ 20dn, and the downstream straight pipe section should be ≥ 5dn (dn is the inner diameter of the pipeline).

3. Sensors should be kept away from external magnetic fields. If unavoidable, necessary measures should be taken;

4. In order to avoid affecting the normal transportation of liquids during maintenance, bypass pipelines should be installed outside the straight pipe sections at both ends of the sensor (as shown in Figure 4);

5. When installing sensors outdoors, please ensure that the amplifier plug is waterproofed;

6. The wiring of sensors and display instruments should be selected according to the power supply of the amplifier. Please refer to the relevant "User Manual" for details.