Basics of Delta Bar Flow Meters

Abstract: The basic knowledge information of Delta Bar flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The Delta Bar flowmeter is a plug-in flow measurement instrument [3]. A delta sensor is inserted into the pipe, when the fluid flows through the sensor, a high pressure distribution area is generated in the upstream direction of the front of the sensor, and a low pressure distribution area is generated at the rear. Widely used. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the basic knowledge of Deltaba flowmeters. The Delta Bar flowmeter is a plug-in flow measurement instrument [3]. A delta sensor is inserted into the pipe, when the fluid flows through the sensor, a high pressure distribution area is generated in the upstream direction of the front of the sensor, and a low pressure distribution area is generated at the rear. Wide range of applications: It can be used to measure the medium of dry gas, wet gas, liquid or steam, and is not limited by the dielectric constant. Applicable to a wide diameter, from 3 mm to 15 meters, there are only three specifications, ZYDF8 is used for ultra-small diameter, ZYDF10 is used for small diameter, they are pipe connections; ZYDF25 is used for common diameters (65 mm ~ 3 meters); ZYDF25D is used for For steam; ZYDF25HD is used for high pressure (69Mpa, double-sided support); ZYDF25Qicklock is used to meet the requirements of quick disassembly; ZYDF50 is used for large diameter; For the medium of high density dust material, online purging device can be used to ensure flexible use under various working conditions. Small pipeline power loss (small pressure loss): the pressure loss of the usual uniform velocity pipe is much smaller than that of the orifice plate, only 5~10% of that of the orifice plate; on the other hand, due to the small pressure loss, it will bring about a small differential pressure (pressure difference between high pressure and low pressure), which increases the requirements for selecting a differential pressure transmitter and increases the cost, otherwise the output accuracy of the transmitter will decrease, because the range cannot be full scale. So a good probe must take into account both pressure loss and differential pressure. The surface design of GZ Delta Ba fully takes this factor into consideration. The section itself is symmetrical, and the surface is divided into three parts (as shown in the figure below). The flow velocity of the medium is accelerated by an average of three times, and the pressure of the head-on section is increased by increasing the contact surface with the medium; the third part is the high and low pressure boundary peak, and the resistance suddenly disappears, forming a low pressure area behind the probe, and the actual color velocity spectrum can fully Reflects the change in the flow rate of the medium. Therefore, the design of the ZY Delta Bar probe meets the requirements of small pressure loss and large differential pressure. High accuracy: 3rd party tests and according to new data show that 2% accuracy can be achieved despite fairly short straight pipe sections. The straight pipe section with 1% accuracy is much shorter than ordinary products, as shown in the figure below. Repeatability was 0.1%. Due to the small pressure loss, the wear on the probe is small, and as long as the installation is suitable, the high precision can be maintained for a long time. Low operating cost: Due to the small pressure loss, the power loss in the pipeline is small. Generally speaking, the operating cost of the uniform velocity tube is only one tenth of that of the orifice plate. Small installation workload: Because the sensor is a plug-in working method, it has the characteristics of easy installation and simplicity. For most orifices just make a small hole in the line. ZY Detaba ZYDF25, the hole diameter is 28 mm, ZYDF50 is 54 mm, and then the probe conduit and the pipeline are welded, and the on-site installation is basically completed, and the workload is 40% of the installation orifice plate. According to years of installation experience, it takes 5 minutes to open the hole, 20 minutes to weld the probe casing, 10 minutes to insert the fixed probe, 5 minutes to install the three-valve manifold, 10 minutes to install the differential pressure transmitter, and 10 minutes to wire. The whole process only takes about 60 minutes. minutes (integration). Free choice of integrated/separate installation: ZY Delta's probe is an integrated probe in the whole sense. No matter whether the measured medium is gas or liquid, or high-temperature superheated steam, the differential pressure probe, temperature and pressure can be adjusted. The measurement and differential pressure transmitter are installed on one probe. There are more than 10 connection methods (options) between the probe and the differential pressure transmitter. There are condensers specially designed for superheated steam, and some are used to directly connect the transmitter. The oval flange also has a simple R1/2″ external thread, providing various connections for split/integrated installation, which can meet various needs. For superheated steam, most products require split installation, and users must configure their own Condenser and other accessories. And GZ detaba is provided together with condenser, globe valve or ball valve, which is safe, reliable, simple and feasible. It is a real integrated probe. The above is the whole content of this article. You are welcome to inquire our flowmeter manufacturer. Selection, quotation, etc. 'Basic Knowledge of Delta Bar Flow Meters'

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