orifice plate flowmeter

NegotiableUpdate on 01/20

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Nature of the Manufacturer: Producers

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Overview

Orifice flowmeter is a device for measuring fluid flow, consisting of a standard orifice plate and a differential pressure transmitter, suitable for media such as liquids, gases, and steam. Its working principle is based on the pressure difference generated when the fluid passes through the orifice plate, with an accuracy of 0.5 and 1 levels, and a range ratio of 1:10 to 1:15. Widely used in fields such as petroleum, chemical, metallurgy, and power, it has the advantages of simple structure, stable performance, and low price. But it requires a longer straight pipe section, resulting in significant pressure loss

Product Details

orifice plate flowmeterInstallation requirements: The general requirement for straight pipe sections is 10D to 5D, so when selectingorifice plate flowmeterIt is necessary to choose a flow meter suitable for the on-site mining situation based on the flow meter.

The fluid filled in the pipeline, when it flows through the throttling device inside the pipeline, the flow beam will form a local contraction at the throttling element of the throttling device, thereby increasing the flow velocity

Precautions

transmitter

A high range differential pressure flow device composed of a transmitter can measure the flow of gases, steam, liquids, and natural gas. The orifice plate throttling device is a standard throttling component that can be produced directly according to national standards without calibration.

All single-phase flow rates can be measured, and this product can also be used for some mixed phase flows. HNLG typeorifice plate flowmeterEasy installation, no need for pressure pipes, can be directly connected to differential pressure transmitters or pressure transmitters for measurement, can simultaneously display the cumulative flow rate, instantaneous flow meter, pressure and temperature of the fluid, and is equipped with multiple communication interfaces.

When the fluid filled in the pipeline flows through the orifice plate, local contraction will occur, the flow bundle will concentrate, the flow velocity will increase, and the static pressure will decrease, resulting in a static pressure difference before and after the orifice plate.

orifice plate flowmeterThe structural principle is to install an orifice plate on the pipeline, with pressure measuring tubes connected on both sides of the orifice plate, which are respectively connected to U-shaped differential pressure gauges.orifice plate flowmeterIt utilizes the throttling effect of fluid passing through sharp holes to increase flow velocity and decrease pressure, resulting in a pressure difference before and after the orifice plate, which serves as the basis for measurement. If the diameter of the pipeline is d1, the diameter of the sharp hole in the orifice plate is d0, the diameter of the constriction formed by the fluid flowing through the orifice plate is d2, and the fluid density is ρ, the velocity at the interface I and II, that is, the pressure measuring conduit in front of the orifice plate and the constriction, is measured