MEJ-LZ Metal tube rotameter is a commonly used variable area flow measurement instrument. It has a metal tube as its shell and a built-in float that can move up and down freely. When the fluid flows from bottom to top, the lift received by the float balances with its gravity, and the height of the float corresponds to different flow rates.
Characteristics:
Ingress protection: IP65
Range ratio: Standard: 10:1
Pressure: Standard: DN15~DN50≤4.0MPa, DN80~DN400≤1.6MPa
Connection: Flange, Clamp, Thread
The advantages of metal tube float flowmeter are reflected in various aspects such as measurement performance, installation and use, and application scope. The following is a detailed introduction for you:
Intuitive and convenient measurement:
Using pointers or dials for display, flow data can be directly read without complex conversion, simple operation, and easy on-site observation.
Range width ratio:
It can maintain stable measurement over a large flow range, and the same flowmeter can meet the measurement needs of different flow rates under various working conditions, with strong applicability.
Low pressure loss:
The internal structure design is reasonable, and the resistance generated when the fluid passes through is small, which will not excessively affect the pressure of the fluid in the pipeline, ensuring the stable operation of the system.
Easy installation and maintenance:
Supports multiple installation methods and does not have strict requirements for the installation environment; And with a compact structure, the daily maintenance workload is small, reducing maintenance costs and manpower investment.
Diverse materials and corrosion resistance:
The shell and internal components can be made of various metal materials, such as stainless steel, Hastelloy, etc., which can adapt to the measurement of corrosive media and expand the application scenarios.
Fast response speed:
Sensitive to changes in traffic, able to track traffic fluctuations in a timely and accurate manner, and monitor traffic data in real-time.
Can achieve remote transmission:
In addition to on-site display, accessories such as transmitters can also be equipped to convert flow signals into standard electrical signals for remote transmission and control.
| Product | Metal Tube Rotameter |
| Model | MEJ-LZ |
| Range | Water (20℃) (01~200000) L/h Air (20,0.1013MPa) (0.03~3000) m³/h |
| Range ratio | Standard 10:1 Optional 20:1 |
| Accuracy | Standard: 1.5% Optional:1% Gas: 1.5% |
| Pressure | standard：DN15~DN50≤4.0MPa DN80~DN200≤1.6MPa Optioanl: DN15~DN50≤32MPa DN80~DN200≤16MPa |
| Connection | Flange, Clamp, Thread, Sanity thread |
| Medium temperature | Standard: -20℃~120℃ PTFE 0℃~80℃ High temp: 120℃~450℃ low temp: -80℃~-20℃ |
| Environment temperature | Remote type: -40℃~85℃ Pointer type/local alarm type -40℃~100℃ |
| Power supply | Standard type: 24VDC two-wire system (4-20) mA (12VDC~32VDC) Alarm type: 24VDC multi-wire system (4-20) mA (12VDC~32VDC) AC type: (100~240) VAC 50Hz~60Hz Battery type: 3.6V@9AH lithium battery |
| Load resistance | RLmax: 600Ω |
| Alarm Output | Upper and lower limit instantaneous flow alarm Local alarm type: upper limit, lower limit or upper and lower limit instantaneous flow alarm (Contact capacity 1A@30VDC) Upper limit and lower limit alarm hold range is a maximum of 60% of range, and the minimum interval between upper and lower limit alarms is 10% of range |
| Pulse output | Cumulative pulse output is output of optocoupler signal isolation Darlington tube (internal 24VDC power supply, maximum current 8mA) |
| Ingress protection | IP65 |
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Component workshop
Calibration workshop
Product verification
