Temperature Pressure Compensated Spiral Vortex Flowmeter
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Temperature Pressure Compensated Spiral Vortex Flowmeter

The MG9650 Spiral Vortex Flowmeter is a versatile velocity-type instrument engineered for precise measurement and control of liquids, steam, and virtually all gases. It employs advanced four-piece piezoelectric ceramic sensing with dual-probe detection to effectively suppress vibration interference and deliver Class 1.0 accuracy for gas and Class 0.5 for liquid. With no moving parts and minimal leakage points, it ensures long-term stability and near-zero mechanical maintenance. Built-in temperature and pressure compensation enables direct output of standard volumetric or mass flow, while 4–20 mA, HART, and RS485 signals ensure seamless system integration. Requiring only 3D upstream and 1D downstream straight pipe, it installs easily in space-constrained layouts. Certified for both intrinsic safety and explosion-proof operation, the MG9650 is widely trusted across petroleum, chemical, metallurgy, power, food, pharmaceutical, and energy industries.
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  • MG9650 Series

Product Features

● Adopting a fine low-power LCD display screen, the on-site display screen can display instantaneous flow, cumulative flow, frequency and other information;

● The probe adopts four-piece piezoelectric ceramic technology and dual-probe detection technology to enhance signal strength and suppress interference caused by pipeline vibrations;

● No moving parts, no wear and tear, no need for mechanical maintenance, few leakage points, long service life;

● The sensors and transmitters have good interchangeability. No re-calibration with actual flow is required to meet accuracy requirements;

● A remote-type signal converter is optional, with a maximum cable length of 10 meters;

● Output 4-20mA current signal, pulse signal, and Modbus RS485 differential signal. HART protocol communication is also supported;

● Two explosion-proof forms are available:

Intrinsic Safety: Ex ia II CT6 Ga; explosion-proof:  Ex d II CT6 Gb;

● The straight pipeline section requirements are low, with only 3D in front of and 1D behind the flowmeter;

● Receive temperature sensor PT1000 signal and pressure sensor signal, perform temperature and pressure compensation, and output 4-20mA current signal.


Technical Specifications

General
Product

MG9650 Spiral Vortex Flowmeter

MediumLiquids, gases, steam
Housing StructureDouble chamber
Housing MaterialHigh pressure cast aluminum or stainless steel
Cable Entry1/2"NPT or M20*1.5
MaterialSS304, SS316, SS316L, HC, etc.
Electric
Power supply12~36VDC, with reverse polarity protection
Output Signal

4~20mA, HART, pulse, RS485

Ambience
Operating Temperature-40~752℉ (-40~350℃)
Ambient Temperature-40~185℉ (-40~85℃)
Storage Temperature-40~185℉ (-40~85℃)
Humidity0~100% relative humidity
Pressure
Operation Pressure

0~420bar (0~42MPa)

Measurement Performance
Accuracy

Gas: Class 1.0, Liquid: Class 0.5

Range Down Ratio10:1-20:1
Hazardous Locations Certifications
FMFactory Mutual (FM) Approvals
CEXExplosion Proof
CEIIntrinsic Safety
CSACanadian Standards Association Certification
IEIIS International Electromechanical Committee
GRGOST Certification
Machinery
Sensor SealingGraphite gasket, others
Pressure RatingsPN16~PN420, ANSI 150LB~2500LB (high-pressure inquiry available)
Process ConnectionFlange mount DN15~DN500
DiameterDN15~500  1/2"~20"
Sealing


Factory sealing
Ingress ProtectionIP65/IP67


Product Application

The following are the application scenarios of MG9650 spiral vortex flowmeter:

●  Chemical and Petroleum Industries

●  Oil and Gas Industries

●  Pharmaceutical Industry

●  Food and Beverage Industries

●  Water Treatment and Sewage Treatment

●  Electric Power Industry

●  Mechanical and Metallurgical Industries


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+86-183-8100-2380
chunhua.zhang@mega-tek.cn
hemin@mega-tek.cn
No.618, Kelin West Road, Wenjiang District,
Chengdu, Sichuan Province, China

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