Basic Info.
Structure Type
Karman Vortex
Output Signal Type
Digital Type
Production Process
SemiConductor Integrated
Accuracy Grade
1.0% Fs (Diameter of Dn15 and Dn 20 Is 2.0% Fs)
Output
Two Wires,4 to 20mA DC+ Hart
Usage
Liquid Level Sensor
Theory
Faraday′s Law of Electromagnetic Induction
Product Description
Positive Displacement Rotary Vane Flow Meter
LBTC positive displacement rotary vane flow meter belongs to positive displacement meter and is one of the most accurate measuring meters for measuring liquid of modern industry. The flow meter has stable performance and is insensitive to flow state change of upstream medium and change of medium viscosity. It has high measuring accuracy,good applicability and long life. Now it has widely used for every field such as process control of modern industry and trade settlement, etc.
Principle
There are two or three couples of rotary vanes, they slide radially along grooves in the barrel-type rotor. With
the action of flowing pressurized fluid, pushing the rotary vanes and the rotor rotates around its axis. Rotary vanes
continuously divide the flowing fluid into an individual volume, using drive gear and counting mechanism calculate and indicate the total delivery of the fluid. The process as follows: when the rotary vanes are at the state as figure 1.1,vane A and D stretch out from the rotor and contact the inwall of measuring chamber while vane B and C retract back completely into rotor. With the fluid entering into the meter, it pushes the vanes and the rotor rotating clockwise. When the rotor and vanes run 1/8 circle, the vanes stop at the position as shown in figure 1.2, vane A stretches completely, vane D begins to retract back, vane C is still in completely contraction state, while vane B begins to stretch out. When the rotor and the vanes run a 1/4 circle, the vanes are in the positions as shown in figure 1.3. The vane A and B both completely stretch out, the space which is composed of the two vanes, rotor, the meter case bore, the upper cover and lower cover is full of measuring fluid. When the rotor and the vanes are in the position as shown in figure 1.4, the fluid in the space begins to be released with the vane A withdrawing gradually. Meanwhile, the vane C begins to stretch out, another new exactly measuring fluid volume between the vane B and C begins to form gradually. So when four vanes rotate around the whole circle is 4 times of volume. ( the meter has three pairs vanes, 6 space volumes will be drained) it realizes fluid measurement.
Main technical parameters
1.Intrinsic Error:0.2%;0.5%
2.Nominal Diameter (mm):25mm;50mm;80mm;100mm;150mm;200mm;250mm;300mm;
3.Nominal Pressure:2.5MPa;4.0MPa; 6.4MPa;
4.Flow Rate Range:
Nominal Diameter | 25 | 50 | 80 | 100 | 150 | 200 | 250 | 300 |
Intrinsic Error % | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 | 0.2 | 0.5 |
Min. Flow m3/h | 3 | 1 | 8 | 5 | 25 | 18 | 35 | 25 | 60 | 40 | 100 | 80 | 120 | 110 | 300 | 200 |
Max. Flow m3/h | 6 | 8 | 20 | 35 | 65 | 80 | 90 | 115 | 120 | 150 | 180 | 240 | 350 | 550 | 900 | 10 |
5.Operation Temperature: -20.C ~ +250.C;(special temperature should indicate.)
6.Fluid Viscosity: 0.6~500mPa.s ( kinematic viscosity)
7.Pressure loss: no more than 0.1MPa(such as nominal diameter is DN80)
8.Min. Indication Unit: For equipped with mechanical header, subject to the model of selected header.
For equipped with intelligent header: 0.001m3
9. Integrated Flux: For equipped with mechanical header, subject to the model of selected header.
For equipped with intelligent header: 99999.9999 m3
10. Coefficient of theoretical instrument: only for equipped with intelligent meter.
Nominal diameter DN | 25 | 50 | 80 | 100 | 150 | 200 | 250 |
Coefficient of theoretical instrument N/L | 18.868 | 6.993 | 3.657 | 2.357 | 1.634 | 1.483 | 0.841 |
Address:
1-1618-2, Building 7, Soho, Wanda Plaza, Yunlong District, Xuzhou City, Jiangsu Province, Xuzhou, Jiangsu, China
Business Type:
Trading Company
Business Range:
Electrical & Electronics, Instruments & Meters, Tools & Hardware
Company Introduction:
Xuzhou Perfect Tools Co., Ltd is a professional manufacturer and trading company which located in Jiangsu Province. We are specializing in different kinds of instruments and hardware tools, such as water level sensor, pressure sensor, pressure switch, temperature sensor, temperature switch, flowmeter, and so on, we also deal with almost all kinds of cutting tools, including HSS drills, screw taps and dies, SDS-plus drills, masonary drills, diamond saw blades, tct saw blade, tungsten solid carbide cutting tools and so on. We has a batch of skilled workers, experienced technicians and senior engineers. We also introduce advanced automatic equipment for research, development and manufacture. Meanwhile, in order to meet the demands of ISO 9001: 2000 quality system, we are punctilious in pursuit of raw materials, process of manufacture and test of quality, trying our best to reduce the cost and supply customers with high-quality products at low prices.
We guaranteed products at a competitive price and high quality. At present, our products have a very good sale in domestic and overseas market. We wish to cooperate with you to create a bright future and mutual benefit. Much appreciation for your prompt attention in advance, we are eager to look forward to hearing from you soon.