The delta meter scale installation requirements

Abstract: the delta bar meter scale installation requirements information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Delta the flowmeter installation requirements 1, for type I sensor, has the detecting rod with a pipe welding as a body, when installation, must make the sensor in the direction of fluid flow. The inner diameter of the inside diameter of process piping and sensor, or at least in the upstream straight. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the delta meter scale installation requirements article details. Delta the flowmeter installation requirements 1, for type I sensor, has the detecting rod with a pipe welding as a body, when installation, must make the sensor in the direction of fluid flow. The inner diameter of the inside diameter of process piping and sensor, or at least in the straight pipe upstream of the required length within the scope of the axis of the sensor with the pipe axis Angle as far as possible to zero. Other types of sensor is the detection of rod inserted into the process piping, in addition to the total pressure hole when installation should is opposite flow direction, must ensure that the sensor detection pole perpendicular to the axis of the process piping, which allows the location of the pressure Angle deviation is shown in figure 5. Total pressure sensor hole center and the pipe axis Angle should be less than 7 & deg; Sensors pole along the direction of the pipe diameter inserted to the bottom, the angular deviation is less than 7 & deg; For vertical pipe sensor can be installed in any position along the pipeline circumferential 360 horizontal pipeline, high pressure pipe should be in the same plane, the figure 6 ( 一) As shown in. When measuring the liquid should be installed side tilt down as shown in figure 6 ( b） As shown in. When measuring gas steam should be upward sloping installation as shown in figure 6 ( c) Delta by the meter. 2, straight pipe due to the sensor is based on velocity area method, approximate integral theory, use more points to describe. Distribution equation, and is established under the condition of the full development of the velocity distribution. So, in order to get an ideal distribution, must be in before and after the sensor has a certain length of straight pipe ( See table below) Serial number velocity-equalizing tube flow sensor installation location upstream side A downstream side B has no rectifier rectifier different plane on the same plane 1 has A 90 & deg; Elbow and tee 6 d, 7 d 9 2 d to 3 d in the same plane with two 90 & deg; Elbow 8 d 9 d 14 d 3 d 3 in different plane with two 90 & deg; 19 24 d, 4 d, 4 d bend 9 d pipe diameter changes ( Or enlarge) 8 d 8 d 8 d 3 d 5 partially open gate valves, ball valves, or other throttle 8 d 8 d 8 d 3 d note: ( 1) In the table & other; D” For the pipe diameter. Magnetic level gauge (turning 2) In the case of insufficient pipeline section, the upstream should be accounted for 70% of the total length of pipe, the downstream accounted for 30%, while still can give a steady value, but the accuracy of decline. 4. 1. 3 of the clamp sensor device shall ensure that no leakage, no looseness, no displacement. 4. 2 maintenance 4. 2. 1 sensor should be cleaned regularly during process piping overhaul, there are a number of ways for cleaning, such as air blow test tube accumulated filth; Scrub with kerosene and soft silk net, make each hole to maintain patency. 2. 2 possible causes of failure and clear way to see the table below: serial number of failure causes clear way without differential pressure signal output 1, high and low pressure valve is not open 1, 2, open the high and low pressure valve, high and low pressure balance valve not tighten, tighten the balance valve 2 small differential pressure signal output 1, guide 1, serious find pressure system has a leak phenomenon, eliminate leakage, secondary range matching table 2, uninteresting facts on the pressure transmitter limit 3 differential pressure signal output is too large, secondary range matching table 1, upper limit of 2 large differential pressure transmitter, back pressure hole blocking 2, cleaning velocity-equalizing tube, eliminate congestion above is all there is in this article, you are welcome to inquire me factory flowmeter selection, quotation, etc.

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