|Line Size||DN 25 to DN 3000|
|Operating Pressure||25 bar|
|Accuracy||- 0.5%,/ - 1%|
|Output Signal||4-20 mA|
Vortex Flow meter
Vortex flow meter is based on Carmen (Karman) vortex principle???it can measure the gas, steam
or volume flow rate of the liquid, volume flow of standard conditions or mass flow .Also it can be applied as a flow transmitter for automation and control systems.
Karman principle :f =St*V/d
Gas: air, compressed air, oxygen, carbon dioxide, nitrogen gas, natural gas, methane gas, ammonia gas etc. Steam: superheated steam, saturated steam.
Liquid: water, oil
Vortex flow meters are widely used in large, medium and small variety of pipes ,for drainage, industrial recycling, sewage treatment, oil and chemical reagents .As well as measuring compressed air, saturated and superheated steam metering,natural gas.
??? With moving parts, simple structure, easy for installation maintenance
??? The frequency and the actual measured fluid flow is linear, zero drift, the performance is very stable.
High accuracy, 1.0%, 1.5%
Wide measurement range , in the range of Reynolds number of 2 × 104 ~ 7 × 106, up to 1:20,
plug-turndown ratio of up to 1:25
Low pressure loss (approximately orifice flow meter 1/4 to 1/2), it belong to the energy-saving flow
High temperature, medium temperature can be measured up to + 350 °C
|Power Supply||220VAC / 24VDC|
|Operating Temperature (Celsius)||250 degC|
|Accuracy||0.5% / 1%|
|DN Range||DN15-DN200 MM|
|Nominal Pressure||1.6, 2.5, 4.0, 6.4MPa|
♦ high precision, good repeatability, small pressure loss and good seismic performance;
♦ Adopt high-quality bearings, with small friction resistance, good sealing performance and long life;
♦ integrating microprocessor, flow sensor, high-precision temperature and pressure sensor, directly measuring the flow, temperature and pressure of the gas to be measured, and automatically performing flow tracking compensation and compression factor correction calculation;
♦ The instrument has pulse signal and analog signal output, and can directly realize centralized collection and real-time management of computer data through RS485 communication interface or GPRS system.
♦ The power consumption is low and can be supplied by internal battery or external power supply.
It has the function of real-time data storage, which can prevent data loss during battery replacement or sudden power failure, and internal data can be stored permanently in the power failure state.
♦ It can be used with IC card prepayment system to facilitate trade settlement;
♦ The explosion-proof marks of explosion-proof products are EXIBIT 4 and EXIBIT 6
Gas Flow Meter Technical Performance
|Gas Type||Nautal Gas , Biogas , LPG Gas|
|Operating Pressure||10degC to 100degC|
The gas meter is a high precision instrument for gas volume
measurement and flow measurement of natural gas and other non-aggressive gases in gas stations and plants. The rotary gas meter is applicable in residential and office buildings as well as commercial and industrial plants.
Description and operation
The rotary gas meter registers the operating volume using an eight-digit mechanical counter. Via pulses the operating volume can be transferred to an electronic volume corrector and converted to normal or standard conditions.The TYL rotary meter is approved for custody transfer according to MID (2004/22/EC) I OIML.
Rotary gas meters are operating according the displacement principle. In the meter housing are two 8-shaped coordinated rotating pistons without touching each other. The measuring chamber is regularly filled and emptied by the rotation. During each revolution four crescent-shaped volumes are moved through the measuring chamber, in which the rotation speed is proportional to the gas flow. The rotation of the pistons is synchronized by a gear train outside the measuring chamber (*Exception is DN 100)
The actual volume flow can be transmitted to electronic volume correctors or data loggers via low frequency (LF-) pulses generated by Reed contacts. In the meter''s index head is also located an anti-tampering contact.
Rotary gas meters are characterized by a very compact design and high accuracy. The rotary meter requires no inlet or outlet pipe and is insensitive to severe gas flow fluctuations (discontinuous operation).
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|Flow Range||1lpm to 1000LPM|
Mass Flowmeter is designed according to the Coriolis Principle. It can be widely used for the process detecting and custody transfer/fiscal unit in many industries such as petroleum, petroleum and chemical, chemical industry, pharmacy, paper making, food and energy, and so on. As a fairly advanced kind of flow measurement instrument, it has been paid attention by the circle of measurement and accepted by many customers home and abroad.
Mass Flowmeter is designed according to the principle of Coriolis force. Under the alternating current effect, the magnet and coil installed on the measuring tube will make two parallel measuring tubes vibrate according to some fixed frequency. Once there is flow passing through the pipes, Coriolis force will give rise to deflection (phase shift) on the vibration of two pipes and the deflection of vibration is directly proportional to the mass flow of fluid. Pick up them and the mass flowrate could be calculated.
The vibration frequency of measuring tube is determined by the total mass of measuring tube and inner fluid. When the fluid density changes, the vibration frequency of measuring tube will be also changing, as a result, the fluid density can be calculated.
The temperature sensor installed in the pipeline can pick up the fluid temperature on time under the coordination of measuring circuit.