Is the standard orifice flowmeter orifice and multi parameter transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter) high range matching ratio of differential pressure flow measuring device, gas, steam, and liquid flow, widely used in petroleum, chemical, metallurgy, electric power, heating, water supply and other fields process control and measurement. Throttling device, also known as differential pressure flowmeter, is composed of a primary detection device (throttling device) and a two time device (differential pressure transmitter and flow indicator), which is widely applied to gas. Flow measurement of steam and liquid. It has simple structure, convenient maintenance and stable performance.

The fluid flows through the throttle in the pipe, causing local contraction near the throttle, increasing the flow rate and generating static pressure difference on both sides of the throttle.

The throttle device of orifice flowmeter is simple and reliable, with stable and reliable performance, long service life and low price. It is a commonly used instrument for measuring flow in industry. The whole process is made by international standard and checked strictly.

The orifice flow velocity increased, static pressure is low, so the throttle is generated before and after the pressure drop, the pressure, the greater the flow of medium flow, resulting in a throttling element before and after the pressure is greater, so the orifice meter by measuring the differential pressure to measure fluid flow in small. The measurement method is based on the law of energy conservation and the law of flow continuity.

Orifice flowmeter can measure the flow of various fluids in the pipeline, and the measurable medium has liquid, gas and steam. It is widely used in petroleum, chemical, metallurgy, light industry, coal and other industrial sectors.

Before and after the orifice flowmeter generates a static pressure difference, the function relation exists between the pressure difference and flow, the greater the flow, the pressure difference is bigger, the differential signal is transmitted to the transmitter, 4-20ma.DC converted into analog signal output, far to the flow totalizer, realize the measurement of fluid flow. The mass flow meter, using the intelligent differential pressure transmitter, realizes the measurement of the fluid mass flow after the automatic compensation of the temperature / pressure of the working condition.

The orifice flowmeter needs to send hot air, and the hot blast stove is close to the blast furnace, and the elbow is more. In the past, standard perforated plates had been used, because the straight tube was not long enough and the error was larger. Because the instrument has a pressure sharing ring and a number of pressure intake, it is necessary for the straight pipe section of 2D long.