Active Member
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[China]
Address: No.21, Lane 697, Guangfulin Road, Songjiang District, Shanghai, China
Contact name:Nancy Zhao
Melan Measurement & Control Instruments (Shanghai) Co.,Ltd. |
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Hot Water Vortex Flow Meter with Temperature to 350℃ High Performance
1. Introduction
LUGBML is based on Von Karman’s Vortex Principle, which adopts piezoelectric crystal as testing components. It is a new kind of stress detecting vortex flow meter. It has the advantage of wide range ratio, high accuracy, low pressure loss, good medium generality, pulse output proportional to flow, convenient to connect with computer and etc. As the detector probe of sensor and the vortex generating body are installed separately, and the high temperature resistant piezoelectric crystal doesn’t contact with medium, so the instrument is of simple structure, good generality and high stability.
LUGBML series Vortex Flow Meter sensor can be used to detect and measure the flow of all kinds of gas, liquid and steam.
LUGBML series Vortex Flow Meter can be used to match with our company’s ML6000 series Velocity Flowmeter. It can also match with a computer and sensors of temperature, pressure, or density to compose high accuracy mass flow or heat flow detecting and measuring system.
2. Features
3. Working Principle
Vortex flow meters are volume flow meters that measure the volume flow of gas, steam or liquid, the volume flow of the underlying condition, or the mass flow based on the Carmen Vortex Street principle. It is mainly used for the flow measurement of fluids in industrial pipe media, such as gas, liquid, steam and other media.
It is characterized by small pressure loss, large range and high precision, and is almost unaffected by parameters such as fluid density, pressure, temperature and viscosity when measuring the volume flow of operating conditions. Unmoved mechanical parts, so high reliability and low maintenance. The instrument parameters can be stable for a long time. The vortex flow meter uses a pyrectric stress sensor with high reliability and can operate in the operating temperature range of -20 degrees C to 250 degrees C. There are analog standard signals, but also digital pulse signal output, easy to use with computers and other digital systems, is a relatively advanced, ideal measuring instrument.
4. Specifications
| Measuring Medium | Steam, Gas, Liquid(avoid multiple direction fluid) |
| Accuracy | ±1.0% for Liquid, ±1.5% for Gas |
| Repeatability | 0.33% for Liquid, 0.5% for Gas |
| Velocity Range | 0.7~7m/s for Liquid, 7~40m/s for Gas |
| Working Pressure | 1.6MPa(standard), 2.5~4.0MPa(according to customer's requirements) |
| Fluid Temperature | -40~250℃(standard temperature); 100~350℃(high temperature) |
| Body Material | 304 SS for standard, 316 SS for option |
| Output | Pulse(three-wired, low voltage≤1V and high voltage≥4V),4-20mA, RS485 |
| Power Supply | 24VDC/12VDC,3.6V Lithium Battery |
| Ambient Temperature | -35℃~60℃(without LCD)；-5℃~60℃(with LCD) |
| Relative Humidity | 5~95% |
| Protection Class | IP65 |
| Electrical connection | M20*1.5 |
5. Dimensional Sketche
| DN | A(mm) | B(mm) | C(mm) |
| 25 | 65 | 65 | 368 |
| 32 | 66 | 65 | 374 |
| 40 | 80 | 76 | 382 |
| 50 | 80 | 89 | 388 |
| 65 | 93 | 102 | 402 |
| 80 | 100 | 114 | 408 |
| 100 | 126 | 136 | 435 |
| 125 | 146 | 160 | 463 |
| 150 | 166 | 182 | 489 |
| 200 | 196 | 248 | 543 |
| 250 | 210 | 282 | 596 |
| 300 | 240 | 334 | 648 |
6. Design & Installation
It is important to install meter,if not installed well, then would
affect precision, use-life and damage.
1． To avoid strong current, high frequency and powerful switch set,
power supply of meter shall be avoided to near by these equipments.
2． To avoid high-Temp & radiation source. if have to install
it, need heat insulation & ventilated measure.
3． To avoid high-Temp & enchant gas, if have to install it,
need ventilated measure.
4． Vortex flow meter shall be avoided to install on shaking part of
pipeline. If have to install on it,shall add clamp device and
vibration pad which located on 2D to enhance shake proof . meter
has better to installed indoors, pay attention to waterproof when
installing meter outdoors,special notice the joint, make cable
conductor to U shape to avoid water get into the amplifier body
Around installing place shall save enough space,so that install
connection line and maintenance routine.
7. Packing
