{"id":27572,"date":"2025-10-23T09:01:23","date_gmt":"2025-10-23T09:01:23","guid":{"rendered":"https:\/\/metlaninst.com\/?p=27572"},"modified":"2025-10-30T09:46:01","modified_gmt":"2025-10-30T09:46:01","slug":"a-complete-guide-to-select-chemical-flow-meters","status":"publish","type":"post","link":"https:\/\/metlaninst.com\/pt\/a-complete-guide-to-select-chemical-flow-meters\/","title":{"rendered":"A Complete Guide to Select Chemical Flow meters"},"content":{"rendered":"<p>In the chemical and process industries, accurate measurement and control of fluid flow are fundamental to ensuring product quality, safety, and efficiency. Chemicals often vary widely in viscosity, corrosiveness, temperature, and pressure \u2014 making flow measurement a technical challenge that requires specialized instruments.<\/p><div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\u00cdndice<\/h2><nav><ul><li><a href=\"#what-is-a-chemical-flow-meter\">What Is a Chemical Flow Meter?<\/a><\/li><li><a href=\"#the-importance-and-challenges-of-measuring-chemical-flow\">The Importance and Challenges of Measuring Chemical Flow<\/a><\/li><li><a href=\"#recommended-flow-meter-types-for-chemical-applications\">Recommended Flow Meter Types for Chemical Applications<\/a><\/li><li><a href=\"#how-to-choose-the-right-chemical-flow-meter\">How to Choose the Right Chemical Flow Meter<\/a><\/li><li><a href=\"#about-metlan-instruments-chemical-flow-meters\">About Metlan Instruments Chemical Flow Meters<\/a><\/li><\/ul><\/nav><\/div><h2 class=\"wp-block-heading\" id=\"what-is-a-chemical-flow-meter\"><strong>What Is a Chemical Flow Meter?<\/strong><\/h2><p>A <strong>chemical flow meter<\/strong> is an instrument designed to measure the rate or total volume of chemical fluids passing through a pipeline. These fluids can include <strong>liquid chemicals, corrosive acids, alkalis, solvents, fuels, and even chemical gases<\/strong>.<\/p><p>The purpose of a chemical flow meter is to ensure that precise quantities of chemicals are delivered, mixed, or reacted as required in industrial processes. Accurate flow measurement is critical in sectors such as:<\/p><ul class=\"wp-block-list\"><li><strong>Chemical manufacturing<\/strong> (acid\/base dosing, solvent blending)<\/li>\n\n<li><strong>Pharmaceutical production<\/strong> (precise ingredient ratios)<\/li>\n\n<li><strong>Petrochemical and refinery processes<\/strong> (fuel and lubricant monitoring)<\/li>\n\n<li><strong>Water and wastewater treatment<\/strong> (chlorine or pH-control chemicals)<\/li>\n\n<li><strong>Ind\u00fastria alimentar e de bebidas<\/strong> (cleaning and sterilization chemicals)<\/li><\/ul><p>In short, chemical flow meters are indispensable tools wherever <strong>chemical reactions, dilution, or dosage control<\/strong> depend on precise flow data.<\/p><h2 class=\"wp-block-heading\" id=\"the-importance-and-challenges-of-measuring-chemical-flow\"><strong>The Importance and Challenges of Measuring Chemical Flow<\/strong><\/h2><p>Measuring chemical flow accurately is crucial not only for <strong>product quality and efficiency<\/strong>mas tamb\u00e9m para <strong>safety and regulatory compliance<\/strong>. Many chemicals are <strong>corrosive, volatile, or toxic<\/strong>, and any mismeasurement can cause safety hazards, process inefficiencies, or environmental violations.<\/p><h3 class=\"wp-block-heading\" id=\"why-chemical-flow-measurement-matters\"><strong>Why Chemical Flow Measurement Matters<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Accurate dosing and blending<\/strong> \u2013 Ensures correct chemical proportions in reactions and formulations.<\/li>\n\n<li><strong>Process safety<\/strong> \u2013 Prevents leaks, overpressure, or dangerous reactions caused by incorrect chemical flow.<\/li>\n\n<li><strong>Cost control<\/strong> \u2013 Reduces waste and optimizes resource consumption.<\/li>\n\n<li><strong>Regulatory compliance<\/strong> \u2013 Maintains adherence to environmental and safety regulations.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"challenges-in-chemical-flow-measurement\"><strong>Challenges in Chemical Flow Measurement<\/strong><\/h3><ol class=\"wp-block-list\"><li><strong>Corrosive or reactive chemicals<\/strong> Many acids, alkalis, or solvents can corrode or degrade standard materials like stainless steel or aluminum. And the wetted part or even main part must use corrosion-resistant materials such as <strong>PTFE, PFA, PVDF, or Hastelloy<\/strong>.<\/li>\n\n<li><strong>Varied viscosity and density<\/strong> Chemical fluids can range from <strong>low-viscosity solvents<\/strong> para <strong>highly viscous resins or oils<\/strong>. Some flow meters are sensitive to viscosity changes, making them unsuitable for certain applications.<\/li>\n\n<li><strong>Temperature and pressure extremes<\/strong> Processes like polymerization or distillation can involve <strong>high temperatures (up to 300\u00b0C)<\/strong> e <strong>high pressures<\/strong>, which affect sensor accuracy and material compatibility.<\/li>\n\n<li><strong>Presence of particulates or gas bubbles<\/strong> Slurries or aerated liquids can interfere with flow readings in volumetric or velocity-based flow meters.<\/li>\n\n<li><strong>Hazardous environments<\/strong> Chemical plants often require <strong>explosion-proof or intrinsically safe<\/strong> flow meters certified for use in hazardous areas (ATEX, IECEx).<\/li><\/ol><p>For these reasons, selecting a proper <strong>chemical flow meter<\/strong> requires careful consideration of both the <strong>chemical properties<\/strong> e <strong>operating conditions<\/strong>.<\/p><h2 class=\"wp-block-heading\" id=\"recommended-flow-meter-types-for-chemical-applications\"><strong>Recommended Flow Meter Types for Chemical Applications<\/strong><\/h2><p>Not all flow meters are suitable for chemicals. Below are the most common types recommended for measuring different kinds of chemical fluids, along with their <strong>working principles, advantages, and limitations<\/strong>.<\/p><h3 class=\"wp-block-heading\" id=\"coriolis-mass-flow-meters\"><strong>Medidores de caudal m\u00e1ssico Coriolis<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p>Coriolis flow meters measure the <strong>caudal m\u00e1ssico<\/strong> of fluids by detecting the deflection caused by fluid movement through vibrating tubes.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li>Direct measurement of <strong>caudal m\u00e1ssico<\/strong> (no need for density compensation)<\/li>\n\n<li>High accuracy (\u00b10.1\u20130.2%)<\/li>\n\n<li>Adequado para <strong>liquids, slurries, and gases<\/strong><\/li>\n\n<li>Funciona bem para <strong>high-viscosity or corrosive chemicals<\/strong><\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Custo inicial mais elevado<\/li>\n\n<li>Sensitive to vibration<\/li><\/ul><p><strong>Melhor para:<\/strong><\/p><p>High-value or critical processes such as <strong>acid dosing, solvent delivery, polymer production<\/strong>e <strong>pharmaceutical manufacturing<\/strong>.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium.jpg\" alt=\"Coriolis Mass Flow Meters for Cryogenic Temperature medium\" class=\"wp-image-27576 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Coriolis-Mass-Flow-Meters-for-Cryogenic-Temperature-medium-700x700.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><strong><a href=\"https:\/\/metlaninst.com\/pt\/medidores-de-caudal-coriolis\/\">Medidor de caudal m\u00e1ssico Coriolis<\/a><\/strong><\/p>\n\n<ul class=\"wp-block-list\"><li>Elevada precis\u00e3o at\u00e9 \u00b10,1 %, boa fiabilidade<\/li>\n\n<li>Bom desempenho de estabilidade zero e anti-interfer\u00eancia<\/li>\n\n<li>Sem partes m\u00f3veis, sem necessidade de manuten\u00e7\u00e3o<\/li>\n\n<li>Comunica\u00e7\u00e3o digital m\u00faltipla, incluindo Hart<\/li><\/ul><\/div><\/div><h3 class=\"wp-block-heading\" id=\"thermal-mass-flow-meters\"><strong>Medidores de caudal m\u00e1ssico t\u00e9rmico<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p>These meters measure <strong>gas flow<\/strong> by detecting the heat dissipation caused by the gas moving past a heated sensor element.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li>Ideal para <strong>chemical gases<\/strong> like <a href=\"https:\/\/metlaninst.com\/pt\/tudo-sobre-o-medidor-de-fluxo-de-gas-nitrogenio\/\" data-type=\"post\" data-id=\"26565\">nitrogen<\/a>, hydrogen, or chlorine<\/li>\n\n<li>Direct mass flow measurement (independent of pressure and temperature)<\/li>\n\n<li>No moving parts \u2014 low maintenance<\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Limited to <strong>gases limpos e secos<\/strong>. Here&#8217;re more ideas for <a href=\"https:\/\/metlaninst.com\/pt\/types-of-gas-flow-meter-a-comprehensive-guide\/\">medidores de caudal de g\u00e1s<\/a>.<\/li>\n\n<li>Not suitable for liquids or wet gas mixtures<\/li><\/ul><p><strong>Melhor para:<\/strong><\/p><p>Monitoring <strong>chemical gas flow<\/strong> in <strong>inerting systems, gas blending, or leak detection<\/strong>.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters.jpg\" alt=\"medidores de caudal m\u00e1ssico t\u00e9rmico\" class=\"wp-image-27578 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/thermal-mass-flow-meters-700x700.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/pt\/medidores-de-caudal-massico-termico\/\">Medidores de caudal m\u00e1ssico t\u00e9rmico<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Classe de prote\u00e7\u00e3o contra explos\u00f5es: Ex db IIC T6 Gb \/ Ex tb IIIC T80\u00b0CDb.<\/li>\n\n<li>Meio: Ar comprimido, azoto, oxig\u00e9nio, di\u00f3xido de carbono e outros gases sem condensa\u00e7\u00e3o.<\/li>\n\n<li>&nbsp;R\u00e1cio de abertura ultra-amplo de 1:2500, a gama de medi\u00e7\u00e3o \u00e9 de 0,1 Nm\/s a 250 Nm\/s.<\/li>\n\n<li>Processamento de sinal totalmente digital, maior precis\u00e3o, estabilidade a longo prazo.<\/li><\/ul><\/div><\/div><h3 class=\"wp-block-heading\" id=\"magnetic-flow-meters\"><strong>Medidores de caudal magn\u00e9ticos<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p><a href=\"https:\/\/metlaninst.com\/pt\/caudalimetro-eletromagnetico-e-principios-de-funcionamento\/\">Medidores de caudal magn\u00e9ticos<\/a> operate based on <strong>Faraday\u2019s law of electromagnetic induction<\/strong>, measuring voltage generated by conductive fluids passing through a magnetic field.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li>Sem partes m\u00f3veis<\/li>\n\n<li>Excellent for <strong>corrosive, conductive liquids<\/strong><\/li>\n\n<li>High accuracy even with varying viscosity<\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Only suitable for <strong>l\u00edquidos condutores<\/strong><\/li><\/ul><p><strong>Melhor para:<\/strong><\/p><p><strong>Acids, bases, salt solutions, <a href=\"https:\/\/metlaninst.com\/pt\/como-escolher-medidores-de-caudal-para-aguas-residuais\/\" data-type=\"post\" data-id=\"23162\">wastewater<\/a><\/strong>e <strong>chemical <a href=\"https:\/\/metlaninst.com\/pt\/tudo-sobre-medidores-de-caudal-para-polpas-abrasivas\/\" data-type=\"post\" data-id=\"23268\">slurries<\/a><\/strong>.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-1024x1024.jpg\" alt=\"Magnetic chemical flow meter\" class=\"wp-image-27574 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-1024x1024.jpg 1024w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-1000x1000.jpg 1000w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-1300x1300.jpg 1300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter-700x700.jpg 700w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Magnetic-chemical-flow-meter.jpg 1438w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/pt\/medidores-de-caudal-magneticos\/\">Medidores de caudal electromagn\u00e9ticos<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Revestimento de PU, PFA, ETFE ou FEP: excelente resist\u00eancia qu\u00edmica e \u00e0 abras\u00e3o<\/li>\n\n<li>Wide range of electrode materials, including corrosion-resistant materials like Hastelloy.<\/li>\n\n<li>High accuracy up to \u00b10.2 %<\/li><\/ul><\/div><\/div><h3 class=\"wp-block-heading\" id=\"positive-displacement-flow-meters\"><strong>Medidores de caudal de deslocamento positivo<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p>These meters physically trap a fixed volume of fluid and count how many times the chamber fills and empties.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li>Excellent for <strong>fluidos de alta viscosidade<\/strong> like oils, adhesives, or resins. Most recommended for <a href=\"https:\/\/metlaninst.com\/pt\/os-5-caudalimetros-de-oleo-mais-recomendados\/\" data-type=\"post\" data-id=\"23007\">medidores de caudal de \u00f3leo<\/a> e <a href=\"https:\/\/metlaninst.com\/pt\/o-que-e-um-medidor-de-caudal-de-combustivel\/\" data-type=\"post\" data-id=\"26110\">medidores de caudal de combust\u00edvel<\/a>.<\/li>\n\n<li>High accuracy even at low flow rates<\/li>\n\n<li>Independent of flow profile and pipe orientation<\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Contains moving parts that require maintenance<\/li>\n\n<li>Not suitable for abrasive or particulate-laden fluids<\/li><\/ul><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter.jpg\" alt=\"Stainless steel oval gear positive displacement oil flow meter\" class=\"wp-image-27577 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Stainless-steel-oval-gear-positive-displacement-oil-flow-meter-700x700.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/pt\/caudalimetros-de-deslocamento-positivo\/\">Medidores de caudal de deslocamento positivo<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Funcionamento suave do rotor em espiral com vibra\u00e7\u00e3o m\u00ednima para um desempenho consistente<\/li>\n\n<li>Ampla gama de medi\u00e7\u00e3o com boa repetibilidade<\/li>\n\n<li>Medi\u00e7\u00e3o de alta precis\u00e3o com exatid\u00e3o at\u00e9 \u00b10,2%<\/li>\n\n<li>Pouco sens\u00edvel \u00e0 varia\u00e7\u00e3o da viscosidade<\/li>\n\n<li>Optimizado para a medi\u00e7\u00e3o de l\u00edquidos de maior viscosidade<\/li><\/ul><\/div><\/div><p><strong>Melhor para:<\/strong><\/p><p><strong>Lubricants, paints, polymers<\/strong>e <strong>non-corrosive chemical liquids<\/strong>.<\/p><h3 class=\"wp-block-heading\" id=\"ultrasonic-flow-meters\"><strong>Medidores de caudal ultra-s\u00f3nicos<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p>Ultrasonic flow meters measure flow rate using sound waves \u2014 either by the <strong>tempo de tr\u00e2nsito<\/strong> ou <strong>Doppler<\/strong> method.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>N\u00e3o intrusivo<\/strong> (clamp-on type available)<\/li>\n\n<li>Works for both conductive and non-conductive fluids<\/li>\n\n<li>Adequado para <strong>corrosive or sterile processes<\/strong><\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Accuracy affected by bubbles or suspended solids<\/li>\n\n<li>Requires a clean pipe surface for clamp-on installation<\/li><\/ul><p><strong>Melhor para:<\/strong><\/p><p><strong>Solvents, cooling liquids, and corrosive acids<\/strong> where contamination must be avoided.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter.jpg\" alt=\"Medidor de caudal de g\u00e1s ultrass\u00f3nico\" class=\"wp-image-27579 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Ultrasonic-Gas-Flow-Meter-700x700.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/pt\/p\/medidor-de-caudal-de-gas-ultrassonico-de-alta-precisao-mts-lynsb\/\">Medidor de caudal de g\u00e1s ultrass\u00f3nico<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Alta precis\u00e3o para g\u00e1s at\u00e9 \u00b10,5%<\/li>\n\n<li>Sem pe\u00e7as m\u00f3veis, sem perda de press\u00e3o, sem obstru\u00e7\u00f5es na linha<\/li>\n\n<li>Sem lubrifica\u00e7\u00e3o ou manuten\u00e7\u00e3o peri\u00f3dica<\/li>\n\n<li>A medi\u00e7\u00e3o n\u00e3o \u00e9 afetada pelas propriedades do g\u00e1s<\/li>\n\n<li>R\u00e1cio de abertura ampla de 100:1<\/li>\n\n<li>Capacidade bidirecional<\/li><\/ul><\/div><\/div><h3 class=\"wp-block-heading\" id=\"gas-mass-flow-controllers-mf-cs\"><strong>Gas Mass Flow Controllers (MFCs)<\/strong><\/h3><p><strong>Princ\u00edpio de funcionamento:<\/strong><\/p><p>MFCs combine a <strong>mass flow sensor<\/strong>, a <strong>valve<\/strong>, and a <strong>control circuit<\/strong> to precisely <strong>measure and control gas flow<\/strong> in real-time.<\/p><p><strong>Principais vantagens:<\/strong><\/p><ul class=\"wp-block-list\"><li>Provides <strong>precise flow control<\/strong>, not just measurement<\/li>\n\n<li>Compact and suitable for <strong>laboratory or pilot-scale processes<\/strong><\/li>\n\n<li>Funciona bem com <strong>reactive or specialty gases<\/strong><\/li><\/ul><p><strong>Limita\u00e7\u00f5es:<\/strong><\/p><ul class=\"wp-block-list\"><li>Designed primarily for <strong>caudais reduzidos<\/strong><\/li><\/ul><p><strong>Melhor para:<\/strong><\/p><p><strong>Gas mixing, coating processes, and catalyst research<\/strong>.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:35% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"551\" height=\"551\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller.webp\" alt=\"Controlador do medidor de caudal m\u00e1ssico de g\u00e1s t\u00e9rmico\" class=\"wp-image-27575 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller.webp 551w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-300x300.webp 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-150x150.webp 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-340x340.webp 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-120x120.webp 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-12x12.webp 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-100x100.webp 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/10\/Thermal-Gas-Mass-Flow-Meter-Controller-46x46.webp 46w\" sizes=\"(max-width: 551px) 100vw, 551px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/pt\/controlador-de-medidor-de-caudal-massico-de-baixo-caudal\/\">Mass Flow Controllers<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Designed for low flow gas \/ liquid measuring<\/li>\n\n<li>It can measure high viscosity fluid and high density gas<\/li>\n\n<li>Designed for low flow gas \/ liquid measuring<\/li>\n\n<li>Controlador PID integrado para regular o caudal<\/li>\n\n<li>Medi\u00e7\u00e3o direta do caudal m\u00e1ssico, compensa\u00e7\u00e3o autom\u00e1tica da temperatura<\/li><\/ul><\/div><\/div><h2 class=\"wp-block-heading\" id=\"how-to-choose-the-right-chemical-flow-meter\"><strong>How to Choose the Right Chemical Flow Meter<\/strong><\/h2><p>Selecting the correct <strong>chemical flow meter<\/strong> requires evaluating several technical and chemical parameters. Below are the main criteria to guide your selection:<\/p><h3 class=\"wp-block-heading\" id=\"1-identify-the-chemical-properties\"><strong>1. Identify the Chemical Properties<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Corrosividade<\/strong>: Choose materials like <strong>PTFE, PFA, or Hastelloy<\/strong> for aggressive acids or alkalis.<\/li>\n\n<li><strong>Condutividade<\/strong>: Use <strong>medidores de caudal magn\u00e9ticos<\/strong> for conductive fluids; for non-conductive fluids, consider <strong>ultrasonic or Coriolis<\/strong> types.<\/li>\n\n<li><strong>Viscosidade<\/strong>: For viscous fluids, <strong>desloca\u00e7\u00e3o positiva<\/strong> ou <strong>Coriolis<\/strong> flow meters perform better.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"2-define-the-flow-range-and-pipe-size\"><strong>2. Define the Flow Range and Pipe Size<\/strong><\/h3><p>Each meter has an optimal flow range. Oversized or undersized meters will reduce accuracy. Always match the flow meter\u2019s range to your process flow rate.<\/p><h3 class=\"wp-block-heading\" id=\"3-operating-conditions\"><strong>3. Operating Conditions<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Temperature and pressure<\/strong> must be within the meter\u2019s limits.<\/li>\n\n<li>In <strong>hazardous environments<\/strong>, select <strong>explosion-proof<\/strong> ou <strong>intrinsically safe<\/strong> models.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"4-installation-requirements\"><strong>4. Installation Requirements<\/strong><\/h3><ul class=\"wp-block-list\"><li>Consider available <strong>space, orientation, and maintenance access<\/strong>.<\/li>\n\n<li>Some flow meters (like ultrasonic clamp-on types) are ideal when pipe modification is not possible.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"5-output-and-communication\"><strong>5. Output and Communication<\/strong><\/h3><p>Modern chemical flow meters support <strong>4\u201320 mA, Modbus, HART, or digital outputs<\/strong> for integration into process control systems.<\/p><h3 class=\"wp-block-heading\" id=\"6-accuracy-and-maintenance\"><strong>6. Accuracy and Maintenance<\/strong><\/h3><p>If precision is critical (e.g., chemical blending or dosing), choose <strong>Coriolis<\/strong> ou <strong>medidores de caudal magn\u00e9ticos<\/strong>. Some suppliers also provide very high accuracy PD flow meters like <a href=\"https:\/\/metlaninst.com\/pt\/\">Metlan Instruments<\/a>.<\/p><p>A <strong>chemical flow meter<\/strong> plays a vital role in controlling and monitoring chemical processes with accuracy and safety. Because of the diversity of chemical fluids \u2014 from corrosive acids to viscous oils \u2014 there is <strong>no single flow meter suitable for all situations<\/strong>. Ultimately, the right flow meter should match <strong>the chemical\u2019s physical properties, the process conditions, and the required accuracy<\/strong>.<\/p><h2 class=\"wp-block-heading\" id=\"about-metlan-instruments-chemical-flow-meters\"><strong>About Metlan Instruments Chemical Flow Meters<\/strong><\/h2><p>Em <a href=\"https:\/\/metlaninst.com\/pt\/\"><strong>Metlan Instruments<\/strong><\/a>, we specialize in high-precision flow measurement and control solutions for industrial applications. Our product range includes <strong>medidores de caudal m\u00e1ssico t\u00e9rmico<\/strong>, <strong>Medidores de caudal m\u00e1ssico Coriolis<\/strong>, <strong>positive displacement meters<\/strong>e <strong>mass flow controllers<\/strong> designed for both gases and liquids \u2014 including corrosive and specialty chemicals.<\/p><p>With advanced sensor technology and robust materials, Metlan Instruments ensures <strong>long-term stability, corrosion resistance, and exceptional accuracy<\/strong> \u2014 helping chemical plants, laboratories, and process industries achieve precise and reliable flow measurement.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the chemical and process industries, accurate measurement and control of fluid flow are fundamental to ensuring product quality, safety, and efficiency. Chemicals often vary widely in viscosity, corrosiveness, temperature, and pressure \u2014 making flow measurement a technical challenge that requires specialized instruments. What Is a Chemical Flow Meter? A chemical flow meter is an [&hellip;]<\/p>","protected":false},"author":1,"featured_media":27573,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[123],"tags":[247],"class_list":["post-27572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-flow-meters","tag-chemical-flow-meters"],"_links":{"self":[{"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/posts\/27572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/comments?post=27572"}],"version-history":[{"count":2,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/posts\/27572\/revisions"}],"predecessor-version":[{"id":27591,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/posts\/27572\/revisions\/27591"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/media\/27573"}],"wp:attachment":[{"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/media?parent=27572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/categories?post=27572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/metlaninst.com\/pt\/wp-json\/wp\/v2\/tags?post=27572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}