Gas Flowmeter Explosion-Proof Rotameter

Gas Flowmeter Explosion-Proof Rotameter


Basic Info.
Model NO.:Metal Rotameter
Principle:Variable Area Type
Export Markets:Global
Flow Span:10:1

Additional Info.

Max.Allow. Pressure:250bar
Protection Class:IP67
Supply Power:12-28V Dctwo-Wire Systembattery Power
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Origin:Tianjin China
HS Code:82057090
Production Capacity:1000000 Piece/Pieces Per Month

Product Description

Rotameter Specifications:

Tianjin U-ideal metal pipe float flowmeters Rotameter are composed of one measuring pipe and on side indicator. The site indicator can be installed also with additional electric devices, suitable for liquid and gas measurement.
The flowmeter adopts variable area measuring principle. The measuring device is composed of one taper measuring pipe and floater. The floater can move freely up and down in the taper measuring pipe to change the flow area in the pipe. When the flow changes, the vertical position of the floater inside the measuring pipe Changes correspondingly. Through magnetic transmitting system, the position of the floater is transmitted to the dial scale of the indicator to indicate the flow.
In M6, M8, M9 indicator, the follow-up magnet movement is transmitted directly to the dial scale. In M7 indicator, when the follow-up magnet rotates, the needle driven by the cam plate indicates linearly the flow.


1). All metal construction, strong and stable.
2). Short stroke, compact structure.
3). Low pressure loss design.
4). New style magnetic coupling structure ensures that the signal transmission is more stable.
5). Magnetic filter can be added as customer requirements.
6). Thermal insulation or tracing heat jacket.
7). Used in the gas and liquid measurement in all industries. The measurment parts can adopt different Materials to be suitable for different medias.
8). Suitable for harsh environment and seriously corrosion media. Having good heat resistance And pressure resistance.
9). Intelligent dual-line LCD display, on site instant/ umulative flow display and back light as Options.
10). Two-wire system, battery, alternating current can be choosed to supply the power.
11). With data recovery, data backup and powerfail protection functions.


They are widely used in following industries: Aerospace, automobile, petroleum, chemical, metallurgy, paper-making, drugs manufacturing, electric power, food, medicine, railroad and water conservation etc.

Technical parameters

Flow range Water 2.5 l/h to 200 m3/h
Air 0.07 to 4500m3/h (201.013bar)
Flow span 10:1
Accuracy Standard accuracy: 1.5% High accuracy: 1.0%
Standard accuracy (PTFE-Liner): 2.5% High accuracy (PTFE-Liner): 1.5%
Connections Flange connection
Standard: DIN2501DN15-DN200
Special: DIN2512DN15-DN200
The GB JIS users needs
Threaded fittings DIN11851SC40-SC80[1-1/2-3 ]
According to demands of customer
Steam Jacket Connections Internal threads 1/2
Flange connection DN15 PN40 DIN2501
According to demands of customer
Max.Allow, pressure 250bar
Temperature range Fluid temperature
-40 to+200Standard type
-40 to+400High temperature type
Ambient temperature
-40 to+70
Materials SS304.SS304L.SS316.SS316L
Hastelloy C
According to demands of customer
Protection class IP67
Supply power 12-28V DCtwo-wire systembattery power