SUP-LZ Metal Tube Rotameter is a device that measures the volumetric flow rate of fluid in a closed tube. It belongs to a class of meters called variable-area flowmeters, which measure flow rate by allowing the cross-sectional area the fluid travels through to vary, causing a measurable effect.
| Product | Metal Tube Rotameter |
| Model | SUP-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 |
A metal tube Rotameter is a type of flow meter that measures the flow rate of a fluid, typically a gas or a liquid. It consists of a tapered metal tube, a float, and a scale. The tapered metal tube has a larger diameter at the bottom and gradually narrows towards the top. The float is a small metallic ball or cylinder that moves freely up and down inside the tube. The scale is marked with flow rate graduations and is attached to the outside of the tube.
The operation of a metal tube Rotameter is based on the principle of buoyancy. When fluid flows through the metal tube, the float rises or falls to a position where the force of the fluid flow is equal to the gravitational force acting on the float. The position of the float corresponds to the flow rate of the fluid, and this can be read off the scale. As the flow rate increases, the float rises and the reading on the scale increases. Conversely, as the flow rate decreases, the float falls and the reading on the scale decreases.
Metal tube Rotameters are commonly used in process industries to measure the flow of gases and liquids in pipes. They are simple and reliable, and can be used to measure a wide range of flow rates. However, they are not suitable for measuring very low flow rates or highly viscous fluids.
The SUP-LZ metal tube Rotameters are easy to install and maintain, with a simple design that requires minimal calibration and maintenance. They are also easy to read, with a clear scale that allows operators to quickly and accurately determine the flow rate.
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Supmea Co., Ltd. is a national high-tech enterprise engaged in the research and development, manufacturing, sales, and service of process automation instruments. Professional production of Magnetic flowmeter, Magmeter flow meter, Vortex flowmeter, Turbine flowmeter, Ultrasonic flowmeter, and Thermal mass flowmeter.
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