Newsletter
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1. product introduction
TYGB series vortex Flow transmitter is mainly used in measurement flow in the industrial pipeline fluid, such as gas, fluid and steam act. Because of its less loss, widely measurement range and high accuracy, there was no influenced by the fluid density, pressure, temperature and viscosity when measuring the flow. So the reliability is high and amount of maintenance is small.
(TYGB)series is suitable for oil，chemical industry，metallurgy，heating power，spinning，papermaking ,etc. Be use of control: over-heating vapor, saturation vapor, compressed air, ordinary air(oxygen, nitrogen, hydrogen, natural gas, coal gas ,etc),water and liquid (water, petrol , alcohol, benzene ,etc.)
2. the features
2.1 simply structure, no moving parts, high reliable and long-term working life.
2.2 easy to install and matainance.
2.3 Detection sensor is not direct contact with the measured medium, stable performance and long service life.
2.4 The output is the pulse signal is proportional to the flow, no zero drift, high precision.
2.5 widely measurement and range than can be reached
2.6 small pressure loss and low operate cost, more energy efficiency.
2.7 In a certain range of Reynolds number, the output signal frequency is not affected by changes in the fluid physical properties, and components, only with spiral shape of 8 meter coefficient, related to the size, shape and measure the fluid volume flow without compensation, generally need to calibration instrument coefficient after changing accessories.
2.8 Widely application range, it can measure the flow of the steam/gas and liquid.
3. The key technical indexes
| inside nominal diameter (mm) | 25，40，50，65，80，100，125，150，200，250，300，(300～1000 plug-in) |
| nominal pressure (MPa) | DN25-DN200 4.0(>4.0 order by agreement)，DN250-DN300 1.6(>1.6 order by agreement) |
| medium temperature (℃) | piezoelectric type：-40～260，-40～320；capacitance：-40～300, -40～400，-40～450（order by agreement） |
| noumenon | 1Cr18Ni9Ti，(order by agreement if need other material) |
| vibrating acceleration | piezoelectric type:0.2g capacitance:1.0～2.0g |
| range | ±1%R，±1.5%R，±1FS；plug-in：±2.5%R，±2.5%FS |
| Range degree | 1：6～1：30 |
| service voltage | sensor：+12V DC，+24V DC；transmitter：+12V DC ，+24V DC；battery supply feed：3.6V battery |
| output signal | square wave pulse (non- battery supply feed)：high level≥5V，low level≤1V；current：4～20mA |
| loss coefficient | JB/T9249 Cd≤2.4 |
| anti-explosion sign | Ben-an type：ExdⅡia CT2-T5 anti-explosion type：ExdⅡCT2-T5 |
| Protection grade | ordinary type IP65 dive type IP68 |
| environment condition | Tem-20℃～55℃，relative humidity 5%～90%，atm press 86～106kPa |
| medium | gas、liquid、vapor |
| transmission range | three-wire system flow sensor：≤300m，electric sign of two-wire system transmitter(4～20mA)：load resistance≤750Ω |
4. Design & installation for meter and ensuring caliber
4.1.When tested gas is vapor，often use quality flow as unit of measurement quality flow，as：t/h or Kg/h. because of vapor(overheating & saturated),density would be changed under different temp & press，so to ensure the flow range, see (8) formula(8)
TIPS：
ρ：density of vapor(kg/m3);ρ0：1.205kg/m3 ;Q :quality flow of vapor(t/h)
4.2.For pressure loss， check the effect of pressure loss to craft pipeline，(Unit：Pa)：
Δp= CdρV2/2 formula(9)
Tips：
Ρ: density of medium under working condition(kg/m3)V: mean flow rate(m/s)
4.3.If tested medium is liquid, to avoid 为gasification and loss, shall make the press of pipeline as follow:
p≥2.7Δp+1.3p0 formula(10)
Tips：
Δp: pressure loss(Pa)
p0：saturated vapor pressure of liquid which under working temperature.(Pa absolute pressure)
Po: fluidic vapor pressure (Pa absolute pressure)
4.4.vortex street flow meter is not suitable for testing high viscosity liquid. if counted measurable lower limit
flow is not suitable for designing, pls select and use other meter type..
4.5. If as the counted parameter, the two or more kinds of meter can be used, then use less caliber, cheaper.
Tips: as far as possible tested range during upper limit of about 1/2～2/3.
5. Model selection table of vortex street flow meter(JB/T9294-1999 standard)
1.Model selection table of sensor
Model selection for TYGB series vortex street meter
| Model chart | Describing | ||||||||||||||||||||
| TY | vortex street meter | ||||||||||||||||||||
| G | sensor | ||||||||||||||||||||
| TEST WAY | B | piezoelectric transducer | |||||||||||||||||||
| E | Capacitance sensor | ||||||||||||||||||||
| Joint way | 1 | full package type | flanged joint type | ||||||||||||||||||
| 2 | full package type | flanged installing type | |||||||||||||||||||
| 3 | plug-in type | simple plug-in | |||||||||||||||||||
| 4 | plug-in type | ball valve plug-in | |||||||||||||||||||
| Test medium | 2 | liquid | |||||||||||||||||||
| 3 | gas | ||||||||||||||||||||
| 4 | vapor | ||||||||||||||||||||
| inside nominal diameter |
02
…
30
|
DN25 unit：mm DN300 |
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| service environment | P | ordinary type | |||||||||||||||||||
| B | explosion proof type | ||||||||||||||||||||
| output signal | 1 | output pulse | |||||||||||||||||||
| 2 | 4～20mA current output，liquid-crystal display | ||||||||||||||||||||
| 3 | RS-485 communication | ||||||||||||||||||||
| 4 | battery supply feed, without Temp、get pressure | ||||||||||||||||||||
| 5 | Tem-pre system，4～20mA current output type | ||||||||||||||||||||
| 6 | Tem-pre system，battery supply feed type | ||||||||||||||||||||
| model selection | e.g.：TYGB2405-P2 full package type capacitance vortex street meter，flanged installing type joint，medium is vapor drift diameter of meter is DN50, ordinary 4～20mA current signal output | ||||||||||||||||||||
Target Flowmeter/Functional Unified Fixed Ultrasonic Flowmeter/Handheld Ultrasonic Flowmeter/ Ultrasonic Flow Module/Portable Ultrasonic Flowmeter/Separate Fixed Ultrasonic Flowmeter/Insertion type Electromagnetic Flowmeter/ Battery powered Electromagnetic Flowmeter/ Remote Type electromagnetic Flowmeter/ TYLD Flanged Electromagnetic Flowmeter/Clamped Electromagnetic Flowmeter/ Metal Tube Float Flowmeter/ Verabar of the Flowmeter/ Insertion Vortex Street Meter/ Integrated Vortex Flowmeter with Temperature & Pressure Compensation/ Intelligent Vortex Flowmeter/ Gas Turbine Flowmeter/ Liquid Turbine Flowmeter/Thermal Gas Mass Flowmeter/ Coriolis Mass Flowmeter/LFX rotor steam Flowmeter/ LUXB liquid precession vortex Flowmeter/ Cross section Flowmeter/ FP-64B balanced dual-chamber container/ LG series throttling device/Integral differential pressure flowmeter/LC Oval gear flowmeter/V Cone Flowmeter/LGBA Annubar Flowmeter/ LGBD Delta Flowmeter/3151 on-line densimeter
