The correct standard orifice meter scale installation method

Abstract: the correct installation method of standard orifice meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Orifice flowmeter is throttling device is measuring flow differential pressure sensitive element. Cooperate with differential pressure transmitter and reality, records, integrating and adjust instrument, can be used to measure, integrating, and control of liquid, steam and gas instantaneous flow and cumulative flow. The throttling device. More flow meter manufacturers choose model price quote you are welcome to inquire, the following is the correct installation method of standard orifice meter scale article details. Orifice flowmeter is throttling device is measuring flow differential pressure sensitive element. Cooperate with differential pressure transmitter and reality, records, integrating and adjust instrument, can be used to measure, integrating, and control of liquid, steam and gas instantaneous flow and cumulative flow. The throttle device has simple structure, easy installation, reliable operation, low cost, convenient maintenance, wide range of selection, Standard section device measuring diameter from 50 mm to 1200 mm, non-standard throttling device applicable pipe diameter can be as small as 6 mm, 3000 mm; Measuring temperature can be as high as 555 ℃; Pressure can be up to 42 mpa) , and also has the advantages of without the need for a separate calibration standard throttle device, is zui widely applied in flow meter, zui mature one kind of product, therefore widely used in electric power, chemical industry, metallurgy, petroleum, textile, military and other fields. Throttling device through throttling and pressure device ( Including take pressure, bring pressure tube and valve, etc. ) , form a complete set of flange, sometimes including standard straight pipe before and after. Standard throttle device has standard orifice, venturi nozzle, standard. The standard orifice plate by way of pressure points Angle joint ( Ring room or drilling) Take the pressure, the pressure and diameter of the flange, Standard nozzles, the length to diameter nozzle nozzle according to the form; Standard according to the form of venturi tube nothing venturi nozzle, venturi tube ( Rough casting or machining or plate) 。 Non-standard throttling devices have small orifice, 1/4 round orifice, round orifice, segmental orifice, eccentric orifice plate, double orifice, built-in orifice, conical inlet orifice plate, etc. Other forms of throttling device with pitot tube, velocity-equalizing tube, wedge, cone, etc. When using the standard throttle device, the nature of the fluid and the state must satisfy the following conditions: ( 1) Fluid must be full of pipeline and the throttle device, and continuously flowing through a pipe. ( 2) Fluid flow does not change with time or change very slowly; ( 3) Fluid flowing through the throttle will not occur when the intersection; ( 4) In the gas there is no greater than 2% ( Quality ingredients) Uniform dispersion of solid particles, or not more than 5% (in the liquid Volume element) Evenly dispersed bubble, can also be considered a single-phase fluid, but its density should take average density; ( 5) Fluid flow through the throttle parts before, a beam is parallel to the pipe axis irrotational flow. Standard throttle device is not suitable for dynamic flow and critical flow of the flow measurement. Throttling device is artificially caused throttling of the pipe in the medium circulation, after the media flow through the throttle device under test, causing a local contraction, beam concentration, flow velocity increases, the static pressure is reduced, so the throttling parts of upstream and downstream from a static pressure difference on both sides. Between the static pressure difference and flow rate are certain function relation, the greater the flow rate, the static pressure difference is larger, therefore, by using the method of measuring the differential flow can be measured. Orifice flowmeter flowmeter is different with other orifice flowmeter is based on parameter design drawings, processing after zui, only according to the measurement of the medium is the hole material. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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