Instrumentation products in the petrochemical industry mainly include different types of flow meters, pressure transmitters, liquid level meters, temperature meters, analytical meters, etc. The measurement of oil is performed at the refinery, while the measurement of refined oil is performed when leaving the refinery. Refined oils are volatile products, so it is important to know how much oil has been delivered at many metering stations along the pipeline. The same process applies to natural gas. Therefore, the flow measurement of crude oil and natural gas products by using the instrument used to measure pressure of gas plays an important role in the petroleum industry. At present, the flowmeter market is highly competitive. The main types of flowmeters are turbine flowmeters, volumetric (PD) flowmeters, differential pressure (DP) flowmeters, Coriolis flowmeters and ultrasonic flowmeters.
The petroleum, natural gas and petrochemical industries have high requirements for material / liquid level measurement instruments. In addition to the traditional technology types of instruments such as differential pressure, radar, magnetostrictive, magnetic flap and other types of instruments are also widely used. The oil and gas industry is also an important industry for the growth of material/level gas and oil transducer instruments in recent years. With the improvement of industrial technology in China's oil production and transportation, some emerging high-end material/level products will be applied in this industry, such as float type level transmitter.