Stable Metal Tube Rotary Flow Meter DN80 With Long Service Life
A DN80 (3-inch) metal tube rotameter is a rugged, variable-area flow meter designed for industrial environments where glass tubes are too fragile. Its all-metal construction—typically stainless steel—provides the structural integrity needed to handle high pressures, extreme temperatures, and corrosive fluids, ensuring a long service life.
|
Measuring medium
|
Water (20ºC)
|
6~200000 l/h
|
|
Air
|
0.05~4000 m3/h
|
|
|
range ratio
|
10:1
|
|
|
Accuracy
|
1.5%
|
|
|
Pressure
|
DN15~DN50 PN4.0MPa
DN80~DN100 PN1.6MPa |
|
|
Medium temperature
|
standard-80ºC ~+140ºC
High temperature type 400ºC PTFE lining ≤85ºC |
|
|
Ambient temperature
|
-40ºC ~+120ºC (teletransmission ≤65ºC)
|
|
|
Medium viscosity
|
DN15: ≤5mPa.s(F15.0~F15.4)
≤30mPa.s(F15.5~F15.9) DN25: ≤250mPa.s DN50~DN150:≤300mPa.s |
|
|
Display
|
Instantaneous flow display value range: 0 ~ 50000 Cumulative flow display value range: 0 ~ 99999999
|
|
|
Output
|
2-wire 4 ~ 20mA
Pulse signal: minimum interval 50ms Alarm signal: open collector, MAX100Ma@30VDC Internal Impedance 100Ω |
|
|
Power
|
Standard type: 24VDC (10.8VDC ~ 36VDC)
Ac type: 220VAC (85 ~ 265VAC) |
|
|
Flange Standard
|
HG20592 or customized
|
|
|
Threaded type:
|
DIN11851 or customized
|
|
|
Electrical Interface
|
M20×1.5,PG11,1/2"NPT
|
|
|
Overall height
|
Standard:250mm (except for other installation methods)
|
|
|
Protection grade
|
IP65
|
|
Magnetic Coupling: These meters use a non-contact magnetic system to track the internal float.
Corrosion Resistance: For aggressive chemicals, you can choose models with SS316L, Titanium, or FEP/PTFE lining to prevent material degradation.
Mechanical Simplicity: With only one moving part (the float), there are no bearings or gears to fail, which significantly lowers maintenance requirements.
Stable Readings: Many industrial models include magnetic damping to minimize pointer jitter caused by rapid flow fluctuations or vibrations.



FAQ
Q: How long will you give me the reply?
A: we will contact you in 1 hours as soon as we can.
Q:Could I visit your factory?
A: Sincerely invite you to visit our factory.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How about the quality of the managements ?
A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before shipping
to you . We have the certification of ISO,CE we could send the certification test of our company to you
Q: What is your terms of payment ?
A: We could accept T/T, Paypal, WU ,Credit Assurance
Q: What is the warranty for your product ?
A: Warranty: 1 years, Lifetime maintenance