Shanghai Yinuo Instrument Co.,Ltd

LXW serials vortex flowmeter is a patent right product of shanghai yinuo instrument Co.,Ltd. LXW serials vortex flowmeter is manufactured according to the principle of Kamen vortex flow.

●Compact structure,
●No moving parts, so has long lifetime
●Has long time stability
●Same sensor can measure liquid, gas and steam
●Whithin Reynold No. Range, meter coefficient no influence with the change of temperature,pressure, viscosity and others.
●Reynolds No. Range：2X10⁴-7X10⁶(For DN25-DNl00)4X10⁴-7X10⁶(For DNl50--DN300)
●Display: Instant and total Flow Local LCD Display
●Working Pressure：1.6～32MPa
●Fluid Temp.：—40℃～+150(Integral Type) —40℃～+300(Separate Type)
●Power:24VDC ±10％ Or 3.6VDC inner lithium Battery
●Ambient Temp.:-25℃～+60℃
●Relative Humidity:5%～95%
●Atmospheric Pressure:86～106KPa
●Measured Fluid: Liquid, Gas and Steam
●Accuracy:1%(For Liquid),1.5%(For Gas and Steam) ●Output Signal：4—20mA Current(2 Wire System) Or Standard Pulse Output(3 Wire System)
●Anti-explosion Grade: ExdIIBT4
●Anti-explosion Certificate No.：2022346

Put a drum vertically into a burette and let some fluid flow down along the drum, by two sides of which there formed, in rotation, regular vortexes , which is called the Karman Street. A output frequency of the Karman Street is related to fluid velocity and drum diameter, which can be described by following formula:

f =St·v/d

Where,

f-Output frequency of the Karman Street
St-Coefficient (called as Strohar number)
v-velocity
d-Diameter of drum

As a output frequency of the Karman Street f is direct proportional to a velocity v, It may work out an instantaneous flow rate by using a tested output frequency of the Karman Street. The Strohar number is a key coefficient for vortex street flow meters. Within the lineal section of the curve, where St≈0.17, the output frequency is direct proportional to the flow velocity, so a velocity v is derivable by using a tested frequency f.
LXW serials vortex street flow transducers detect the output frequency by using piezoeletricial elements inside the sensors (probes) to test the stress that is alternatively acted on the elements by vortex.

DN（mm）	Normal Flow Range(m³/h)		Max.Flow Range(m³/h)
DN（mm）	Water	Gas	Water	Gas
25	2.5~13	25~135	2~17	20~135
40	3~30	40~338	2.6~40	35~338
50	5~50	60~547	4~70	45~547
80	10~100	90~1050	6~140	75~1050
100	17~170	170~1800	10~240	130~1715
150	27~360	350~4050	22~540	300~4050
200	60~650	600~7250	40~900	600~7275
250	100~1100	1100~11000	70~1200	1000~12000
300	160~1700	1600~17000	120~1600	1500~17000

Note：
The outfactory calibrated fluid is water or air.

DN(mm)	Flow Range	Flow Range（kg/h）
DN(mm)	Flow Range	0.1MPa	0.2MPa	0.4MPa	0.6MPa	0.8MPa	1.0MPa	1.5MPa	2.0MPa	2.5MPa
25	Min.	20.5	21.5	25.8	30.5	34.5	37.9	45.0	51.8	57.5
25	Max.	151	220	356	488	619	756	1075	1398	1720
40	Min.	34.5	41.3	53.2	62.2	70.3	80.3	107.2	132.8	157.6
40	Max.	360	526	849	1159	1485	1786	2566	3345	4122
50	Min.	57.8	69.5	89.7	104.5	118.2	130.8	157.2	179.3	197.6
50	Max.	596	870	1396	1928	2440	2964	4256	5538	6840
80	Min.	113.3	137	173	203	228	252	302	363	430
80	Max.	1150	1680	2706	3724	4720	5728	8208	10640	13100
100	Min.	195	238	302	355	398	457	610	754	893
100	Max.	2000	2930	4730	6500	8250	9970	14250	18620	22900
150	Min.	430	522	696	898	1090	1276	1694	2100	2475
150	Max.	4398	6420	10260	14240	18050	21850	31250	40850	45600
200	Min.	895	1085	1330	1716	2057	2398	3215	3938	4653
200	Max.	7870	11400	18500	25500	32300	39200	53500	55300	57000
250	Min.	1587	1948	2422	3120	3776	4400	5870	7257	8588
250	Max.	12168	17760	28652	39339	49917	60434	86636	107340	139400
300	Min.	2274	2839	4162	4450	5400	6300	8400	10300	12300
300	Max.	17428	25430	41030	56330	71480	86550	124000	161700	199600

Wafer Connection Type（See below table and picture）

Flange Connection Type（See below table and picture）

DN	A	Φc	ΦD	L	Weight（kg）
Φ25	189.5	51	25	70	3.2
Φ40	197	73	40	70	4
Φ50	197.5	92	50	75	5.5
Φ80	224.5	127	70	100	9
Φ100	233	157	94	120	12

DN	A	ΦD	L	Weight（kg）
Φ150	246	139	270	33
Φ200	269	186	310	45
Φ250	292	231	370	70
Φ300	315	276	400	100

Connection Pipe Form	Least requirement of straight pipe
Connection Pipe Form	Upper flow	Down flow
Concentric shrink pipe	15D	5D
Concentric flare pipe	35D	5D
One 90°jointer pipe	20D	5D
Two same plane 90°jointer pipe	25D	5D
Two differ plane 90°jointer pipe	30D	5D
Full open valve	20D	5D
Half-open valve	40D	5D

Note: D-Means the nominal diameter of flowmeter
If need install temperature sensor and/or pressure sensor in the pipe system, the sensor should install the down flow of the flowmeter as the below picture shows.

Type	1	2	3	4	5	6	7	8	Note:
Type	DN	Transmitter							Note:
LXW									Vortex Flowmeter
	02								DN:25mm
	03								DN:32mm
	04								DN:40mm
	05								DN:50mm
	06								DN:65mm
	08								DN:80mm
	10								DN:100mm
	12								DN:125mm
	15								DN:150mm
	20								DN:200mm
	25								DN:250mm
	30								DN:300mm
		ZY							Liquid
		ZQ							Gas or Steam
		FL							Separate Type for Liquid, gas or Steam
			1						Nominal Pressure:2.5Mpa
			2						Nominal Pressure:4.0Mpa
				J					Wafer Connection
				F					Flange Connection
					A				General
					B				Anti-explosion
						F			Pulse Output
						I			4-20mA Output
							W		Power:24VDC
							N		Lithium Battery:3.6VDC
								O	No Local Display
								X	With local instant and total flow LCD display

Example：LXW05-ZYJBI Means:DN:50mm,Measure fluid,Wafer Type Connection, Anti-explosion type, 4-20mA Current Output

1．Nominal Diameter：DN_____mm
2．Fluid Name：_________________________
3．Flow ：Max.：_____ m³/h Normal_______ m³/h Min._______m³/h
4．Fluid Temp.： __________℃
5．Working Pressure： __________MPa
6．Fluid Density：_________________g/cm³
7．Output Signal：_________________

Company:	Shanghai Yinuo Instrument Co., Ltd.
Address:	No.7508 North Jiasong Road, Huangdu Town, Jiading District, Shanghai
Postcode:	201804
Tel:	0086-21-5959 8313 0086-21-5959 8312
Fax:	0086-21-5959 8113
Website:	http://www.yinuochina.com
E-Mail:	shynyb@yahoo.com.cn 59598312@163.com
Mobile Phone:	0086-137 8890 0279
Contacter:	Steven Shao （Sales Manager）邵仲文