The V-cone flowmeter is a new type of differential pressure flow measuring device with a pointed cone coaxially installed in the measuring tube as the throttling part. It is a new type of throttling device based on the measurement principle of the venturi tube and integrating the advantages of the classic venturi tube, annular orifice plate and wear-resistant orifice plate.Features of V-cone flowmeter: 1. The vertebral body design has a rectification effect. The installation of straight pipes is low. 2. The range ratio is very wide. 3. The V-cone sensor is wear-resistant and has good long-term stability of the sensor. 4. Good signal stability. 5. Permanent pressure. Low loss 6. Wide calculation range of V-cone β coefficient 7. V-cone sensor is not blocked, non-adhesive, and has no dead zone. It is especially suitable for flow measurement of dirty media. 8. It can measure high temperature and high pressure media. 9. Specifications Complete, flexible installationThe main technical parameters of V-cone flowmeter:Accuracy grade: ±0.5%F. SLong-term stability: ±0.1%F. S/YRepeatability: ±0.1%Minimum flow rate: 0.1mTurndown ratio: usually 15:1, up to 50:1Reynolds number application range: 8×103～5×106Working pressure: ≤32MPa, up to 42MPaWorking temperature: -160℃～700℃Pipe size: DN15～DN2000Environment temperature: ≤80℃Relative humidity: 5～85%Output signal: 4～20mAPower supply voltage: 24VDCDifferential pressure and pressure transmitter output current: 4mA～20mAArtificial intelligence flow calculation display power supply voltage: 220VACArtificial intelligence flow calculation display output current: 4mA～20mA 
Communication mode of intelligent differential pressure and pressure transmitter: HART&BRAINArtificial intelligence flow calculation display communication mode: RS232&RS485Applicable medium: V-cone flowmeter sensor is widely used in the measurement of fluid flow in municipal, electric power, chemical, petrochemical, gold, food processing and other industries, and it is suitable for almost all gas and liquid media.Installation method1. Pipeline flange type: refers to the installation flange at both ends of the flowmeter. It is connected with mounting flanges (also called user flanges) of the same specification at both ends of the process pipeline. It is a more commonly used structure and the applicable caliber (DN50mm～3000mm). This form is suitable for the split installation of the throttling device and the differential pressure transmitter. It is generally used when measuring the steam flow rate, and it can also be used when measuring other high-temperature media.2. Flange clamping type: It is used for the installation of small-mouth flow meters. Each flowmeter only needs 2 flanges for the process pipeline. The flange and the process pipeline are welded together, and then the flowmeter is clamped between the two flanges. The installation method here is the same as that of the vortex flowmeter (≤300mm).3. Small caliber integrated type: suitable for fluids with caliber ≤DN40mm and medium temperature ≤120℃. The structure is to directly combine the differential pressure transmitter with the tower flow meter into a whole. There is no pressure guiding tube, pressure taking valve, or three-valve group between the two. Make the installation very simple (the same as the installation method of the vortex flowmeter). When the differential pressure transmitter adjusts the zero point, the valve of the process pipeline needs to be closed, and then the zero can be adjusted.Note: This installation method cannot be used to measure high-temperature media, because the high-temperature media will enter the measuring room of the differential pressure transmitter and damage the measuring diaphragm of the transmitter.4. Pipe butt welding type: It means that the tower flowmeter and the process pipeline cannot be connected by flange (the flowmeter body cannot be flanged), and the flowmeter and the process pipeline are directly welded together during installation. The cost of this structure is relatively low (the cost of 4 flanges is reduced), and it is a one-time installation. Generally used in larger diameter occasions.5. Conventional fluid integrated type: refers to fluid with medium temperature ≤120℃, applicable pipe diameter: DN50～DN3000. According to different fluids and user requirements, the manufacturer welds (or assembles) valves and three-valve groups on the flowmeter before leaving the factory. The user can assemble the flowmeter and transmitter together when installing on site.6. Steam integrated type: When measuring the steam flow, the transmitter and the tower flowmeter are assembled together, and the “three-valve group dedicated for steam” of our company must be assembled between the transmitter and the flowmeter, so as to cancel The pressure guiding tube is greatly simplified and the pressure taking structure is greatly simplified.7. Liquid antifreeze type: refers to the “liquid special isolation tank” installed by our company between the tower flowmeter and the transmitter. The tank contains a special medium that can not freeze at a lower temperature. This installation method is used to measure liquids, especially when the outdoor environment is relatively low in northern winter. The liquid in the measuring chamber of the transmitter is easy to freeze and damage the transmitter.8. Square pipe flange type: It means that the process pipe is a square pipe and the flow meter measuring pipe is a round pipe. The two are connected by a special “square-circle” connector.
Post time: 21-09-21