Variable Area Flow Meter-Variable Area Water Rotameter
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.
Technical Specifications of Metal Tube float Rotameter
| LZ | U-ideal Series of metal tube float flow-meter | ||||||||
| Structure of transmitter | |||||||||
| 50 | Vertical connection , flow from bottom to top | ||||||||
| 51 | Flow form bottom to side | ||||||||
| 52 | Flow from side to side | ||||||||
| 53R | Horizontal connection , Flow from right to left | ||||||||
| 53L | Horizontal connection, flow from left to right | ||||||||
| 54 | Vertical connection , flow from top to bottom | ||||||||
| Wetted material | |||||||||
| R0 | Stainless steel 0Cr18Ni12Mo2Ti | ||||||||
| R1 | Stainless steel 1Cr18Ni9Ti | ||||||||
| R4 | Stainless steel 304 | ||||||||
| R4L | Stainless steel 304L | ||||||||
| R6 | Stainless steel 316 | ||||||||
| R6L | Stainless steel 316L | ||||||||
| RP | Stainless steel lining PTFE | ||||||||
| Hc | Hastelloy C276 | ||||||||
| Ti | Titanium | ||||||||
| Indicator | |||||||||
| M1 | Square shell ,glass view, local indication, intrinsic safety and limit switch | ||||||||
| M2 | Circle shell , local indication, intrinsic safety or explosion-proof and limit switch | ||||||||
| Display and Output | |||||||||
| Es | 24VDC power supply, Output 4-20mA , two-wires, HART communication | ||||||||
| Js | 3.6V lithium battery power-supply ,None Output | ||||||||
| Anti-Explosion Type | |||||||||
| Ex | Intrinsic safety | ||||||||
| Ed | Explosion-proof | ||||||||
| Alarm Output | |||||||||
| K1 | One point high limit switch | ||||||||
| K2 | One point low limit switch | ||||||||
| K12 | Two point high-low limit switch | ||||||||
| Assistance structure | |||||||||
| T | Heating or cooling jacket | ||||||||
| Z | Damp system | ||||||||
| G | High-temperature indicator | ||||||||
| Fluid type | |||||||||
| Air | Gas | ||||||||
| Liquid(omit) | |||||||||
| 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 range | Water 2.5~100000L/h; Air 0.07~800m3/h |
| Range ratio | Standard type10:1; Special order 20:1 |
| Accuracy | Standard type: ±1.5%FS; Special order: up to ±1 %FS |
| Max. Working Pressure | Standard type: DN15~DN50, 4.0MPa; DN80~DN200,1.6MPa;Special order: DN15~DN50, 25MPa; DN80~DN200, 16MPa |
| Environment Temperature | LCD type: -30°C~+85°C; Pointer type: -40°C~+120°C |
| Connection Form | Flange connection: DIN2501 standard type; Can be made in accordance with the user's requirement |
| Explosion-proof Class | Intrinsically safe Exia II CT3~6 flameproof Exd II BT4 |
| Protection Grade | IP65 |
| Viscosity | DN15: <5mPa.s(F15.1-F15.3); <30mPa.s(F15.4-F15.8)DN25: <250mPFa.s DN50-DN150: <300mPa.s |