『Flow meter code』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. What is FIQ flow meter?
1. FIQ stands for flow indicator with cumulative quantity. F represents traffic, I represents indication, and Q represents accumulation.
2、 The measurement principle of a flowmeter is Faradays law of electromagnetic induction. The main components of the sensor are the measuring tube, electrode, excitation coil, iron core, and magnetic yoke housing. It is mainly used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. Including strong corrosive liquids such as acid, alkali, and cherry blossom salt. This product is widely used in industries such as petroleum, chemical, metallurgical, textile, food, pharmaceuticals, papermaking, as well as environmental protection, municipal management, and water conservancy construction.
2. What is the meaning of the "r" symbol in industrial flow meters?
The "R" symbol in industrial flow meters has four common meanings depending on the application scenario.
1. The connection method is identified in the model code of vortex flow meters, and "R" represents the threaded connection method.
. For example, model "1R" refers to a vortex flowmeter with a diameter of 1 inch and threaded connection. In the application of inflow flow meters, R is the flow area factor (also known as the cavity coefficient or pipe coefficient), and the calculation formula for vertical sails is R=Sw/A (the ratio of seepage area to cross section area). This dimensionless parameter is used to correct the effects of fluid viscosity, inertial force, and pipe wall thickness on flow measurement. The accuracy level is indicated in the accuracy annotation, where "R" represents relative error. If marked with "0.2%_600x400.jpg)
4. In the metal tube rotor flowmeter, the "R" series car train code indicates a specific liquid contact material: - R0: 0Cr18Ni2Mo2Ti stainless steel - R1:1Cr18Ni9Ti stainless steel. The specific meaning needs to be confirmed in conjunction with the flowmeter model nameplate, technical manual, or application scenario.
3. In the process flow diagram with control points, the symbol representing the electromagnetic flowmeter
In the process flow diagram with control points (P&ID), the standard symbol for the electromagnetic flowmeter consists of "graphic+letter code" and must comply with specifications such as GB/T 2625-2008.
. 1. The graphic symbols that make up an electromagnetic flowmeter usually include three core parts: • Measuring element: The main body is a circular symbol with a horizontal line in the middle, representing the electrode in the principle of electromagnetic induction; • Connection line: Connect the measuring element to the pipeline system through a straight or broken line, indicating its installation position in the process; • Instrument Circle: Some design units may add a circular or square dashed box around the symbol to indicate the instrument number and parameters; • Cumulative function FT: If it also has flow accumulation function, use "T" (transmitter transmitter) instead, such as FT-102; • Additional identification: letter combinations can be expanded according to requirements, such as FIQ indicating flow indicator with cumulative function3. Practical application example: In a chemical P&ID drawing, the circular symbol next to the pipeline has a horizontal line inside, marked
Hot News
Related AD
