Hebei, China
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Rotameter, Variable Area Flow Meter, Water Flow Meter manufacturer / supplier in China, offering Variable Area Flow Meter-Variable Area Water Rotameter, Stainless Steel Sanitary Ball Valve, Three Way Ball Valve, Valves, Air Compressor Relief Valve (AQ-20) and so on.

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Variable Area Flow Meter-Variable Area Water Rotameter

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Min. Order / Reference FOB Price
1 Piece US $300/ Piece
Production Capacity: 2000PCS
Transport Package: Carton or Playwood Case
Payment Terms: L/C, T/T, D/P, Paypal, Western Union
Accuracy: ±0.6-1%
Main Application: Water, Wastewater, Diesel Fuel, Fuel Oil, Corrosive Liquid/Gas
Size: Dn10-Dn500
Sensor: Tube/Flange
Application: Industrial Production
Type: Variable Area Flow Meter

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Basic Info

Model NO.: LZ50-R1M1EsExK1Air
Measuring Media: Gas
Measuring Principle: Thermodynamic
Measurement Object: Closed Pipeline
Certification: DIN, ANS, GB, CE, ISO
Output Signal: 4~20mA, Switch, LCD
Indicate: Flow Rate, Total Flow
Medium: Air, Water, Gas, Liquid
Installing Direction: Horizontal, Vertical
Flow: Top-Bottom, Bottom-Top, Side-Side, Side-Top, Top-S
Explosion-Proof Function: Intrinsic Safety or Explosion-Proof
Accuracy Class: 0.2, 0.5, 1.0 Selectable
Material: Ss304, Ss316, PTFE, PVC
Delivery Time: in 3-5days
OEM Service Supply: Can Do on Needs
Trademark: Tianjin U-ideal Instrument
Specification: IP65, IP67
Origin: Tianjin, China
HS Code: 90261000

Product Description

What is Metal Tube Rotameter?
Metal tube rotameter, characterized by high strength, safety, and durability, is designed to measure the flow of such medium as liquid, gas, and vapor etc. It is especially suitable for measuring the corrosive and turbid liquid as a result of its fine characteristics of high pressure and temperature resistance. Metal tube rotameter is able to not only ensure high measurement accuracy but also enhance safety and dependability. Thanks to its nicely unique appearance design, it has the finest explosion proof performance.
The rotameter 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.
Rotameter uses magnetic sensor and chip process technology, which allows the LCD to express instantaneous flow, accumulated flow, and percentage flow, and also provides twowire current signals output 4~20mA, compatible with HART communication protocol. Equipped with the indicator and alarm switch on the setpoint, metal tube rotameter gives high precession indicating and alarm signals output.
Features of Metal Tube Rotameter
·         All metal construction, strong and stable.
·         Short stroke, compact structure.
·         Low pressure loss design.
·         New style magnetic coupling structure ensures that the signal transmission is more stable.
·         Magnetic filter can be added as customer requirements.
·         Thermal insulation or tracing heat jacket.
·         Used in the gas and liquid measurement in all industries. The measurement parts can adopt different materials to be suitable for different media.
·         Suitable for harsh environment and seriously corrosion media. Having good heat resistance and pressure resistance.
·         Intelligent dual-line LCD display, on site instant/cumulative flow display and back light as options.
·         Two-wire system, battery, alternating current can be chosen to supply the power.
·         With data recovery, data backup and power fail protection functions.
Variable Area Flow Meter-Variable Area Water Rotameter
Variable Area Flow Meter-Variable Area Water Rotameter
Technical Specifications of Metal Tube float Rotameter

LZU-ideal Series of metal tube float flow-meter
Structure of transmitter
 50Vertical connection , flow from bottom to top
 51Flow form bottom to side
 52Flow from side to side
 53RHorizontal connection , Flow from right to left
 53LHorizontal connection, flow from left to right
 54Vertical connection , flow from top to bottom

Wetted material

 R0Stainless steel  0Cr18Ni12Mo2Ti

 R1Stainless steel  1Cr18Ni9Ti

 R4Stainless steel  304

 R4LStainless steel  304L

 R6Stainless steel  316

 R6LStainless steel  316L

 RPStainless steel lining PTFE

 HcHastelloy C276



M1Square shell ,glass view, local indication, intrinsic safety and limit switch

M2Circle shell , local indication, intrinsic safety or explosion-proof and limit switch

Display and Output

Es24VDC power supply, Output 4-20mA , two-wires, HART communication

Js3.6V lithium battery power-supply ,None Output

Anti-Explosion Type

ExIntrinsic safety 


Alarm Output

 K1One point high limit switch

 K2One point low limit switch

 K12Two point high-low limit switch

Assistance structure

THeating or cooling jacket

ZDamp system

GHigh-temperature indicator

Fluid type



LZ50/R1/M1/Es/Ex/K1/Z/Air ( describe: Vertical connection, fluid take from bottom to top, Wetted material is 1Cr18Ni9Ti, M1 indicator , Remote Output, Intrinsic safety, One point high limit switch and the medium is gas. )

Flow rangeWater 2.5~100000L/h; Air 0.07~800m3/h
Range ratioStandard type10:1; Special order 20:1
AccuracyStandard type: ±1.5%FS; Special order: up to ±1 %FS
Max. Working PressureStandard type: DN15~DN50, 4.0MPa; DN80~DN200,1.6MPa;Special order: DN15~DN50, 25MPa; DN80~DN200, 16MPa
Environment TemperatureLCD type: -30°C~+85°C; Pointer type: -40°C~+120°C
Connection FormFlange connection: DIN2501 standard type; Can be made in accordance with the user's requirement
Explosion-proof ClassIntrinsically safe Exia II CT3~6 flameproof Exd II BT4
Protection GradeIP65
ViscosityDN15: <5mPa.s(F15.1-F15.3); <30mPa.s(F15.4-F15.8)DN25: <250mPFa.s
DN50-DN150: <300mPa.s

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