Overview LGZD Deertaba is the use of differential pressure type flow sensor works, plug-in installation method designed a flow sensor. The working principle, which is a special kind of throttling device, which output is a differential pressure. Pressure by the sensor probe (or probes), before and after the probe has several holes in two rows impulse unevenly distributed. Cited by two rows of holes to form a differential pressure after the pipe from top to bottom (left to right) of different pressures (velocity) of the average, and thus can calculate the mass flow or volume flow. Scope 1, nominal diameter: 25mm≤DN≤6000mm 2, PN: PN≤25MPa 3, medium temperature: t≤650 ℃ 4, Accuracy: 0.5 structure LGZD Deertaba flow sensor is detecting lever, take pressure port composition, it traverses the pipeline inside the tube axis perpendicular to the surface of the detection lever welcome stream has more than the total pressure detecting holes in the detection lever back flow surface with a plurality of static pressure sensing holes, respectively, by the total pressure Impulse tube and static pressure guide tube leads, according to the differential value of the total pressure and static pressure to calculate the flow rate through the pipeline. Sectional shape of the detection lever shown below: theoretical basis LGZD Deertaba flow sensor is developed based on the principle of pitot speed, which is determined by the effective cross-sectional area of ??the flow velocity and the average product of the pipe conduit. Its flow is calculated as follows: Several installation LGZD Deertaba flow sensor installation requirements 1, the installation detects rod measuring section should be straight, its upstream and downstream straight pipe length specified in the table below with reference to the length. No. upstream side of the local resistance elements upstream side of the downstream side of the form there is no rectifier rectifier and detection lever is not in the same plane in the same plane with the detection lever 1 has a 90 ° elbow or tee 7D 9D 6D 3D 2 in the same plane with two a 90 ° elbow * * 9D 14D 8D 3D 3 with two 90 ° elbows * * 19D 24D 9D 4D 4 pipe diameter changes (entry or expansion) 8D 8D 8D 3D 5 partially open gate valve, ball valve in a different plane or other throttling 24D 24D 9D 4D Note: * D is the nominal diameter of the pipe, the data is given from a second length of the elbow. 2, the insertion position of the lever allowable deviation angle detection range shown in Figure five. 3. For vertical pipes, detection lever can be installed in any position along the horizontal pipe of 360 ° on the circumference of the pipe, high and low pressure pipe joints should be cited in the same horizontal plane. For horizontal pipe, the liquid in the measurement of the position of the detection rod is inserted should be in the horizontal center line of the pipe cross-sectional view in the range of 45 ° or less; the position of the detection rod is inserted should be in the horizontal center line of the pipe cross-sectional view in the range of 45 ° or more when the measuring gas; Measurement Steam should be level when detecting rod inserted in Figure VI: 4, hole size Φ35 pipe. 5, the compensation pressure transmitter front straight pipe, temperature transmitters (or platinum resistance) is mounted at a distance 2D throttling device on the rear straight pipe. ?? * For more product information, visit the company's Web site. http://www.kyjlyb.com/ ?? Business Consulting:? Miss Song ?? Contact:??? ???? 0317-8266455 E-mail:?? 2842911836@qq.com ???? ?? Technical Advisory :? 13082172588 Fax: 0317--8290179