High Quality Vortex Flow Meter (CX-VFM)

• Customization: Available
• Warranty: One Year
• (Mainland) Brand Name: Gn
• Model NO.: CX-VFM
• Exported: More 80 Countries
• Price: Competitive
• Maintenance: Less and Easy
• Transport Package: Carton
• Specification: CE SGS
• Trademark: GN
• Origin: Shanghai
• HS Code: 9026100000
• Production Capacity: 1000PCS/Month

Product Description

vortex flow meter

Working principle
To install a vortex generator(bluff body)in the fluid,which can produces regular vortex at both sides of the vortex generator altematively.Such vortex is called Karman Vortex.Vortex trains are asymmetrically arranged at the downstream of the vortex geberator. Suppose the generating frequency of the vortex is f,the average speed of the incoming flow of the tested medium is V,the head-on width of the vortex generator is d,and the diameter of the flowmeter is D,and base on the principles of Karman Vortex.

Technical parameters
Main parameters
 

Nominal diameter(mm)	25,40,50,65,80,100,125,150,200,250,300,(300~1000 Insert type)
Nominal pressure (MPa)	DN25-DN200 4.0(>4.0 Supply agreement),DN250-DN300 1.6(>1.6 Supply agreement)
Medium temperature(ºC)	Piezoelectric type:-40~260,-40~320;Capacitance type : -40~300, -40~400,-40~450(Supply agreement)
Body material	1Cr18Ni9Ti,(Other materials supply agreement)
Allowable vibration acceleration	Piezoelectric type:0.2g     Capacitance type:1.0~2.0g
Accuracy	±1%R,±1.5%R,±1FS;Insert type:±2.5%R,±2.5%FS
Range of	1:6~1:30
Power supply voltage	Sensor:+12V DC,+24V DC;Transmitter:+12V DC ,+24V DC;Battery type:3.6V Battery
Output signal	Square wave pulse ( not including the battery power supply type ): high level or low level5V,1V; current: 4~ 20mA
Pressure loss coefficient	In line with the JB / T9249standard Cd = 2.4
Explosion proof marks	Intrinsic safety type: Exd IA CT2-T5 flameproof type: Exd CT2-T5
Protection grade	The ordinary IP65  diving type IP68
Environmental conditions	Temperature - 20~ 55,5% ~ 90% of relative humidity, atmospheric pressure is 86 ~ 106kPa
Applicable medium	Gas, liquid, steam
Transmission distance	Three wire system pulse output type: < 300m, two line standard current output type (4 ~ 20mA ): load resistance less than 750ohm

               
 Reference conditions of vortex flow sensors flow rate range
 

Meter diameter (mm)	Liquid		Gas
	Measuring range (m^3/h)	Output frequency range(Hz)	Measuring range (m^3/h)	Output frequency range(Hz)
25	1.2~16	25~336	8.8~55	190~1140
40	2~40	10~200	27~205	140~1040
50	3~60	8~160	35~380	94~1020
80	6.5~130	4.1~82	86~1100	55~690
100	15~220	4.7~69	133~1700	42~536
150	30~450	2.8~43	347~4000	33~380
200	45~800	2~31	560~8000	22~315
250	65~1250	1.5~25	890~11000	18~221
300	95~2000	1.2~24	1360~18000	16~213
300	100~1500	5.5~87	1560~15600	85~880
400	180~3000	5.6~87	2750~27000	85~880
500	300~4500	5.6~88	4300~43000	85~880
600	450~6500	5.7~89	6100~61000	85~880
800	750~10000	5.7~88	11000~110000	85~880
1000	1200~1700	5.8~88	17000~170000	85~880
>1000	Agreement		Agreement

 
 
 

Meter diameter (mm)	Liquid		Gas
	Measuring range (m3/h)	Output frequency range(Hz)	Measuring range (m3/h)	Output frequency range(Hz)
25	1.2~16	25~336	8.8~55	190~1140
40	2~40	10~200	27~205	140~1040
50	3~60	8~160	35~380	94~1020
80	6.5~130	4.1~82	86~1100	55~690
100	15~220	4.7~69	133~1700	42~536
150	30~450	2.8~43	347~4000	33~380
200	45~800	2~31	560~8000	22~315
250	65~1250	1.5~25	890~11000	18~221
300	95~2000	1.2~24	1360~18000	16~213
(300)	100~1500	5.5~87	1560~15600	85~880
(400)	180~3000	5.6~87	2750~27000	85~880
(500)	300~4500	5.6~88	4300~43000	85~880
(600)	450~6500	5.7~89	6100~61000	85~880
(800)	750~10000	5.7~88	11000~110000	85~880
(1000)	1200~1700	5.8~88	17000~170000	85~880
>(1000)	Agreement		Agreement

Note: (300) to (1000) diameter for insertion type

Series of products
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