Basic knowledge of the delta, meter scale

Abstract: the basic knowledge of the delta and meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The delta the flowmeter is a kind of plug flow measurement instrument [ 3] 。 In the pipeline to insert a delta sensor, when the fluid flows through the sensor, in the front of the incident flow direction to produce a high pressure area, a low pressure area in the back. Used widely. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the delta meter scale details the basic knowledge of the article. The delta the flowmeter is a kind of plug flow measurement instrument [ 3] 。 In the pipeline to insert a delta sensor, when the fluid flows through the sensor, in the front of the incident flow direction to produce a high pressure area, a low pressure area in the back. Widely used: can be used to measure the dry gas, wet gas, liquid or steam medium, without being limited by the dielectric constant. Suitable size is wide, from 3 mm to 15 meters, only there are three kinds of specifications, ZYDF8 used in ultra small diameter, ZYDF10 for small diameter, which the pipe connection; ZYDF25 used to diameter ( 65 mm ~ 3 m) ； ZYDF25D for steam; ZYDF25HD used in high pressure ( 69 mpa, double support) ； ZYDF25Qicklock used to meet the requirements of rapid release; ZYDF50 used in large diameter; For high temperature, corrosion medium, has the special probe material and pipe connection; For medium with high density of dust material, can use the online purging device, in order to ensure the flexible use of various condition. Pipe low power loss, Loss of pressure small) : usually velocity-equalizing tube pressure loss is much smaller than orifice, only 5 to 10% of the orifice plate; On the other hand, due to the loss of pressure is small, can bring the differential small ( High pressure and low pressure differential) , making the choice for higher differential pressure transmitter, cost, or you will make the output of the transducer precision drops, because unable to achieve the full scale range. So a good detector must be balanced with loss of pressure and differential pressure two aspects. GZ delta fully into account the factors of surface design, section itself is symmetrical, curved surface is divided into three parts, The diagram below) , right against the face part is smooth, smooth probe in contact with the medium; The second part is the acceleration section, three times the average speed of medium velocity, by increasing the contact area of with the media, raise the pressure head on segment; The third part is the boundary between high and low voltage spike, resistance to disappear suddenly, behind the probe form the low pressure area, the actual color spectrum can fully reflect the change of medium velocity. Say so, ZY, delta and probe design to meet the requirement of the small loss of pressure and differential pressure big. High precision: after the third party test, and according to the new data show that although in a relatively short straight pipe, also can achieve the accuracy of 2%. Reach 1% accuracy of straight pipe much shorter than the general products, the following figure. Repeatability is 0. 1%. Because of the small pressure loss, and to probe the wear small, as long as the appropriate installation, to be able to maintain high precision for a long time. Low operating costs: due to the loss of pressure is small, makes the power loss in the pipe is small, usually sense, velocity-equalizing tube running cost is only one over ten of the orifice plate. Installation: small amount of work for the sensor is plug-in works, have installer makes, the characteristics of simple. For most sizes just open a small hole in the pipe. ZY, Barbara ZYDF25, aperture of 28 mm, ZYDF50 is 54 mm, then pipe with pipe welding, has basically completed installation, 40% of the workload is install the orifice plate. According to many years of experience in installing, opening need 5 minutes, the welding probe casing for 20 minutes, insert the fixed probe for 10 minutes, three valve group for 5 minutes, 10 minutes with differential pressure transmitter, wiring for 10 minutes, the whole process only about 60 minutes ( Integration) 。 Integration/fission installation free choice: ZY delta and probe a full sense of the integration of the probe, regardless of the measured medium is a gas or liquid, or high temperature of superheated steam, differential pressure sensor, the temperature and pressure can be measured and differential pressure transmitter installation on a probe, the probe and the connection between differential pressure to have more than 10 kinds of ( Choose) , specifically for the superheated steam condenser, is used to directly connect the transmitter elliptical flange, also has a simple R1/2 & Prime; External thread, and provide all kinds of connection of fission installation/integration, can meet various needs. As for superheated steam, most product requirements fission installation, users have to match the condenser and other accessories. Barbara, together with the condenser by GZ and Germany, cut-off valve or ball valve are provided, along with all the safe and reliable, simple and feasible, is the real integration of the probe. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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