Flow
본문
Displacement Flow Meter
Description
MDRF200 Double Rotator Gas Flow Meter is the newest positive displacement gas flowmeter, which is self-search and designed by Mostek Co., Ltd. As it is well known that high accuracy and high security are vital to the transmission, measurement and flow transfer.
The MDRF200 series Double Rotator Gas Flow Meter is the ideal of measurement for them.
The meter is applied to measure the flow of the gases or gas mixtures in the sealed pipeline and operates in constant rotatory flow principle.
Its permanent and non-adjusted accuracy is guaranteed by the spiral rotators which are made precisely by a pair of digital control process center and solid chamber, and can avoid the effect of the variation of the gases' specific gravity, pressue and flow.So the meter have typical application in oil field chemical industry, metallurgy, sewage process, water treatment, rmoelectricity, and paper making, etc.
Principle
As it is shown in the picture 1, there are two spiral rotators with opposite rotating directions in the solid measurement chamber.
The rotators will run smoothly when the gap among them is kept optimal situation. The measured gases will push the rotators to rotate, and the same volume gases will be discharged when the rotators run a round.
The rotators are connected with the transducer which can generate a signal to intelligence electronic counter so that the instant and total flow can be displayed.
Feature and Application
- Accuracy : ± 0.2% , High Repeatability : ± 0.1%
- Cost Effective Products, High Quality Performance
- Wide Application for Gas, Custody Transfer, SKID System
- Uniform Rotation : Low Pressure Loss ( 0.1 KPa for DN20 )
- High Temperature Service : Max +180 °C
- Ambient Temperature : -30 °C ~+55°C , Humidity : 5%~95%
- Explosion-Proof Grade Ex d IIB T4
- Multiple Output : 4~20 mA, Pulse, Modbus RS485 RTU
- Menu-Driven Programming Software Built-in
- Compensation for Pressure, Tempaerture, Flow
- Working Pressure : 1.6 ~ 16 Mpa
- Local Display : Instant Flow and Totalization
- Power Supply : 24 VDC, 220 VAC 60 Hz
- Simple Installation, Easy Maintenance
Technical Specifications
- High accutacy, precise repeatadility, smooth running, no pulsation and long service lifetime.
- Little space for installation and no need to install straight pipe-run up and down stream of the flow-meter.
- The accuracy is stable and can avoid the effect of the variation of pressure and flow.
- Automatic temperature and pressure compensation.
- Available with pulse and analog signals, and can be controlled and managed on-time through the RS-485 communication interface.
- Low power consumption, and available with interior battery or exterior power supply as well.
- Available with specialized high precision Liquid Crystal Display and convenient for reading for flow rate .
- Explosion-proof grade : Exd II CT2~CT6.
A. Intelligence Type
Micro-processor based control system, with advanced integrated circuits, is highly interference rejection. It is also able to check error automatically. The gases' flow, temperature and pressure can be measured directly. The compensation and the medium temperature and pressure under normal conditions can be displayed as well.
B. General Type
The instant flow, total flow can be displayed without temperature and pressure compensation. There are not modified operation of the compact gene and the display of the liquid's temperature and pressure.
C. Working Condition
a. Ambient temperarure : -30°C ~ +55°C
b. Relative humidity : 5%~95%
c. Liquid temperature : -20°C ~ +180°C
d. Atmospheric pressure : 86KPa ~ 106KPa
Nominal Flow Range Table
| Type | Pipe Size (mm) | Flow Range (m³/h) | Min. Flow Range (m³/h) | Pressure Loss (KPa) | Nominal Pressure (MPa) |
|---|---|---|---|---|---|
| MDRF200-20 | 20 | 5 ~ 20 | 0.2 | 0.1 | 1.6, 2.5, 4.0, 16 |
| MDRF200-25 | 25 | 7.5 ~ 30 | 0.25 | 0.15 | |
| MDRF200-40 | 40 | 10 ~ 40 | 0.45 | 0.15 | |
| MDRF200-50 | 50 | 12.5 ~ 50 | 0.9 | 0.20 | |
| MDRF200-80 | 80 | 37.5 ~ 150 | 1.0 | 0.27 | |
| MDRF200-100 | 100 | 100 ~ 400 | 1.5 | 0.30 | |
| MDRF200-150 | 150 | 250 ~ 1000 | 5 | 0.50 |
첨부파일
- PrevTurbine Flow Meter 26.05.18