HLLU straw gas flowmeter | Karman vortex flowmeter

NegotiableUpdate on 07/07

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Nature of the Manufacturer: Producers

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Overview

The HLLU straw gas flowmeter vortex street flowmeter is based on the Karman vortex street principle, which detects the vortex separation frequency through a probe to calculate the flow rate and converts it into corresponding pulse or current signals in the signal transmitter for output. The characteristics of HLLU straw gas flowmeter are small pressure loss, large range, and high accuracy. HLLU straw gas flowmeter is almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring volumetric flow rate under working conditions; No movable mechanical parts, therefore high reliability and low maintenance; The instrument parameters can remain stable for a long time.

Product Details

HLLU秸秆气流量计|卡门涡街流量计|厂家直销|选型选购

HLLU straw gas flowmeter:
The HLLU series vortex flowmeter is mainly used for flow measurement of industrial pipeline media fluids, such as gases, liquids, vapors, and other media. Its characteristics are small pressure loss, large range, high accuracy, and it is almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring volumetric flow rate under working conditions; No movable mechanical parts, therefore high reliability and low maintenance; The instrument parameters can remain stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor, which has high reliability and can operate within the working temperature range of -20 ℃ to+250 ℃. It has analog standard signals and digital pulse signal outputs, and is easy to be used in conjunction with digital systems such as computers. It is a relatively advanced and ideal flow meter.

HLLU秸秆气流量计|卡门涡街流量计|厂家直销|选型选购

Working principle
The vortex flowmeter is based on the Karman vortex principle, which detects the vortex separation frequency through a probe to calculate the flow rate and converts it into corresponding pulse or current signals in the signal transmitter for output.
Main features:
High degree, with a liquid measurement accuracy of ± 1.0%; Gas measurement accuracy is ± 1.5%
• Low pressure loss, about 1/4 of the orifice flowmeter, belonging to energy-saving flow meters
Flexible installation method, capable of horizontal, vertical, and inclined installation at different angles
Adopting anti-interference circuit and anti vibration sensing head, it has certain anti environmental vibration performance
No movable parts, long instrument life
Technical parameters:

Instrument model	HLLU-N	HLLU-A	HLLU-B	HLLU- C	HLLU- D1/D2
signal output	pulse	4-20mA	not have	4-20mA	Optional 4-20mA or pulse
power supply	24VDC±15%	24VDC±15%	lithium battery	24VDC±15%	24VDC ± 15% and lithium battery
communication interface	not have	not have	not have	Optional RS485	Optional RS485
accuracy class	Liquid: Grade 1.0 Gas: 1.0 grade Steam: Level 1.5		Liquid: Grade 1.0 Gas: 1.0 grade Steam: Level 1.5		Liquid: Grade 1.0 Gas: 1.0 grade Steam: Level 1.5
monitor	not have		have		have
Instrument material	304SS		304SS		304SS
Explosion proof grade	Optional ExiaICIT5 or ExdIIBT6		Optional ExiaICIT5 or ExdIIBT6		Optional ExiaICIT5 or ExdIIBT6
protection grade	IP65		IP65		IP65
Overall Power Consumption	＜1W		＜1W		＜1W
Instrument communication	DN15~DN300		DN15~DN300		DN15~DN300
Installation method	Flange clamping or integrated flange connection		Flange clamping or integrated flange connection		Flange clamping or integrated flange connection
Voltage resistance level	Optional 1.6MPa or 2.5MPa		Optional 1.6MPa or 2.5MPa		Optional 1.6MPa or 2.5MPa
medium temperature	-40 ℃~250 ℃, -40 ℃~350 ℃		-40 ℃~250 ℃, -40 ℃~350 ℃		-40 ℃~250 ℃, -40 ℃~350 ℃
ambient temperature	-20℃~60℃		-20℃~60℃		-20℃~60℃

HLLU秸秆气流量计|卡门涡街流量计|厂家直销|选型选购

Flow range:

Instrument diameter (mm)	Liquid measurement range (m3/h)	Gas measurement range (m3/h)
DN15	1.2-6.2	5-25
DN20	1.5-10	8-50
DN25	1.6-16	10-70
DN32	1.9-19	15-150
DN40	2.5-26	22-220
DN50	3.5-38	36-320
DN65	6.2-65	50-480
DN80	10-100	70-640
DN100	15-150	130-1100
DN125	25-250	200-1700
DN150	36-380	280-2240
DN200	62-650	580-4960
DN250	140-1400	970-8000
DN300	200-2000	1380-11000