{"id":27641,"date":"2025-11-20T06:33:29","date_gmt":"2025-11-20T06:33:29","guid":{"rendered":"https:\/\/metlaninst.com\/?p=27641"},"modified":"2026-01-14T08:30:46","modified_gmt":"2026-01-14T08:30:46","slug":"chlorine-flow-meter-selection-guide","status":"publish","type":"post","link":"https:\/\/metlaninst.com\/de\/chlorine-flow-meter-selection-guide\/","title":{"rendered":"Chlorine Flow Meter Selection Guide"},"content":{"rendered":"<p>Chlorine (Cl\u2082) is one of the most widely used <a href=\"https:\/\/metlaninst.com\/de\/a-complete-guide-to-select-chemical-flow-meters\/\" data-type=\"post\" data-id=\"27572\">industrial chemicals<\/a> in water treatment, chemical processing, paper bleaching, and manufacturing. Despite its importance, chlorine is also one of the most challenging and hazardous substances to measure accurately. Its corrosive nature, toxicity, and sensitive phase behavior require specialized flow meter technologies and carefully selected materials.<\/p><p>For engineers and plant operators working with chlorine gas or liquid chlorine, choosing the right flow meter is essential for both <strong>process accuracy<\/strong> und <strong>operator safety<\/strong>. This article explores what chlorine is, its combined physical\/chemical characteristics &amp; measurement challenges, and how to select the most suitable chlorine flow meter for industrial applications.<\/p><div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Inhalts\u00fcbersicht<\/h2><nav><ul><li><a href=\"#what-is-chlorine\">What Is Chlorine?<\/a><\/li><li><a href=\"#characteristics-challenges-of-chlorine\">Characteristics &amp; Challenges of Chlorine<\/a><\/li><li><a href=\"#chlorine-flow-meter-types\">Chlorine Flow Meter Types<\/a><\/li><li><a href=\"#material-and-installation-considerations\">Material and Installation Considerations<\/a><\/li><li><a href=\"#o\">Other Gas Flow Meter Types Selection Guides<\/a><\/li><\/ul><\/nav><\/div><h2 class=\"wp-block-heading\" id=\"what-is-chlorine\"><strong>What Is Chlorine?<\/strong><\/h2><p>Chlorine is a greenish-yellow, highly toxic gas at room temperature. It belongs to the halogen group and is naturally a diatomic molecule (Cl\u2082). Industrial chlorine is produced primarily through the electrolysis of brine (saltwater) and is supplied either as compressed gas or as liquefied chlorine under high pressure.<\/p><h3 class=\"wp-block-heading\" id=\"common-applications-of-chlorine\"><strong>Common Applications of Chlorine<\/strong><\/h3><p>Chlorine plays an important role in:<\/p><ul class=\"wp-block-list\"><li>Drinking water and wastewater disinfection<\/li>\n\n<li>Production of PVC and other chlorinated chemicals<\/li>\n\n<li>Pharmaceutical and fine chemical synthesis<\/li>\n\n<li>Pulp and paper bleaching<\/li>\n\n<li>Food processing sanitation<\/li>\n\n<li>Semiconductor and electronics manufacturing<\/li><\/ul><p>Despite its broad industrial use, chlorine is classified as a <strong>hazardous toxic gas<\/strong>, which makes measurement and handling more complex than most industrial fluids.<\/p><h2 class=\"wp-block-heading\" id=\"characteristics-challenges-of-chlorine\"><strong>Characteristics &amp; Challenges of Chlorine<\/strong><\/h2><p>Measuring chlorine flow is particularly challenging due to a combination of its physical and chemical properties. The following highlights the key traits and the effects they have on flow measurement.<\/p><h3 class=\"wp-block-heading\" id=\"highly-corrosive-oxidising-material-sensitive\">1. <strong>Highly Corrosive, Oxidising &amp; Material-Sensitive<\/strong><\/h3><p>Chlorine reacts aggressively with many metals and elastomers, and moisture dramatically increases its corrosive power, forming hydrochloric and hypochlorous acids. Materials such as carbon steel, copper, aluminum and standard elastomers are quickly degraded. Therefore, flow meters used with chlorine must be constructed of corrosion-resistant materials (e.g., Hastelloy, Monel, PTFE linings).<\/p><h3 class=\"wp-block-heading\" id=\"1-toxicity-and-leakage-risk\"><strong>2. Toxicity and Leakage Risk<\/strong><\/h3><p>Chlorine gas is extremely harmful even at low concentrations. A leaking flow meter or poor sealing can lead to serious health risks and environmental hazards. Thus, flow meters must offer full-welded, leak-proof construction, and zero dead-volume designs to avoid stagnation and internal corrosion.<\/p><h3 class=\"wp-block-heading\" id=\"2-phase-change-density-variability-flow-instability\"><strong>3. Phase Change, Density Variability &amp; Flow Instability<\/strong><\/h3><p>Chlorine easily transitions between gas and liquid phases depending on temperature and pressure (e.g., it liquefies at \u221234 \u00b0C under ~6.8 bar). These transitions cause density shifts and two-phase flow, which many conventional flow meters cannot handle reliably. Additionally, temperature and pressure changes affect velocity profiles, causing measurement drift.<\/p><h3 class=\"wp-block-heading\" id=\"3-high-pressure-temperature-variation\"><strong>4. High Pressure &amp; Temperature Variation<\/strong><\/h3><p>Chlorine systems may operate under elevated pressures and varying temperatures. The piping, instrumentation and flow meter must all cope with dynamic shifts without degrading accuracy or safety. Temperature fluctuations also significantly alter chlorine\u2019s viscosity and density, challenging volumetric flow measurement.<\/p><h3 class=\"wp-block-heading\" id=\"4-moisture-and-contaminants-impact\"><strong>5. Moisture and Contaminants Impact<\/strong><\/h3><p>Even trace moisture or foreign particles significantly accelerate chlorine corrosion, damage measurement internals, and create bubbles or vapor pockets that distort flow readings. Flow meters in chlorine service must mitigate ingress of moisture and resist the effects of contamination.<\/p><p>Because of this complex interaction of chemical aggressiveness, phase change, material degradation, and safety demands, measuring chlorine flow is one of the most demanding applications in instrumentation engineering.<\/p><h2 class=\"wp-block-heading\" id=\"chlorine-flow-meter-types\"><strong>Chlorine Flow Meter Types<\/strong><\/h2><p>When selecting a chlorine flow meter, compatibility with chlorine\u2019s corrosive and hazardous nature must be the top priority. Below are the technologies most commonly used, and those that must be avoided.<\/p><h3 class=\"wp-block-heading\" id=\"coriolis-mass-flow-meter\"><strong>Coriolis-Massendurchflussmesser<\/strong><\/h3><p>A Coriolis mass flow meter is widely considered the <strong>most reliable and accurate<\/strong> solution for both gaseous and liquid chlorine.<\/p><p><strong>Advantages of Coriolis for Chlorine:<\/strong><\/p><ul class=\"wp-block-list\"><li>Direct mass flow measurement: unaffected by density\/temperature changes.<\/li>\n\n<li>Suitable for two-phase or unstable flow conditions.<\/li>\n\n<li>Full-welded sensor structure \u2192 zero leakage.<\/li>\n\n<li>Allows special corrosion-resistant materials and full inert sealing.<\/li>\n\n<li>No moving mechanical parts, which reduces failure risk in aggressive media.<\/li><\/ul><p>These features make Coriolis ideal for chlorine applications requiring high accuracy, safety and long-term reliability.<\/p><div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:30% 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\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine.jpg\" alt=\"Coriolis Mass Flow Meter for Chlorine\" class=\"wp-image-27645 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-for-Chlorine-700x700.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/de\/coriolis-durchflussmesser\/\">Coriolis-Massendurchflussmesser<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Hohe Genauigkeit bis zu \u00b10,1 %, gute Zuverl\u00e4ssigkeit<\/li>\n\n<li>Gute Nullpunktstabilit\u00e4t und Antist\u00f6rungsleistung<\/li>\n\n<li>Keine beweglichen Teile, keine Wartung erforderlich<\/li>\n\n<li>Mehrfache digitale Kommunikation einschlie\u00dflich Hart<\/li><\/ul><\/div><\/div><p>If your application flow range is very low, this <a href=\"https:\/\/metlaninst.com\/de\/p\/coriolis-massendurchflussmesser-regler-mtl20fe\/\">Coriolis mass flow controller<\/a> will be your choice.<\/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=\"851\" height=\"765\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine.jpg\" alt=\"Coriolis Mass Flow Meter Controller for Chlorine\" class=\"wp-image-27644 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine.jpg 851w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine-300x270.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine-768x690.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine-340x306.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Coriolis-Mass-Flow-Meter-Controller-for-Chlorine-13x12.jpg 13w\" sizes=\"(max-width: 851px) 100vw, 851px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p>Coriolis Mass Flow Controller for Low Flow Conditions<\/p>\n\n<ul class=\"wp-block-list\"><li>Konzipiert f\u00fcr die Messung von Gasen und Fl\u00fcssigkeiten mit geringem Durchfluss.<\/li>\n\n<li>Hohe Pr\u00e4zision, gute Wiederholbarkeit. F\u00fcr Fl\u00fcssigkeiten kann die Messgenauigkeit \u00b1 0,25% erreichen; f\u00fcr Gase kann die Messgenauigkeit \u00b1 0,5% erreichen.<\/li>\n\n<li>Turn Down Ratio: 50:1 f\u00fcr digitale Massendurchflussregler; 100:1 f\u00fcr digitale Massendurchflussmesser.<\/li>\n\n<li>Ansprechzeit: Massendurchflussregler&lt;0,2s; Massendurchflussmesser &lt;0,1s<\/li><\/ul><\/div><\/div><h3 class=\"wp-block-heading\" id=\"thermal-mass-flow-meter-gas-only-special-materials\"><strong>Thermal Mass Flow Meter (Gas Only, Special Materials)<\/strong><\/h3><p>Thermal mass flow meters can be used <strong>only for dry, clean, filtered chlorine gas<\/strong>, and when built with corrosion\u2010resistant materials (PTFE\/PFA sensors, Hastelloy housings etc.).<\/p><p><strong>Strengths:<\/strong><\/p><ul class=\"wp-block-list\"><li>Direct gas mass flow measurement, no density or temperature compensation needed.<\/li>\n\n<li>Good for low to medium flow gas lines.<\/li><\/ul><p><strong>Beschr\u00e4nkungen:<\/strong><\/p><ul class=\"wp-block-list\"><li>Not suitable for liquid chlorine.<\/li>\n\n<li>Cannot tolerate moisture or contamination.<\/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 decoding=\"async\" width=\"800\" height=\"800\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter.jpg\" alt=\"thermal mass Chlorine flow meter\" class=\"wp-image-27646 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter.jpg 800w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-300x300.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-150x150.jpg 150w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-768x768.jpg 768w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-340x340.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-120x120.jpg 120w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-12x12.jpg 12w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-600x600.jpg 600w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-100x100.jpg 100w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-flow-meter-46x46.jpg 46w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/thermal-mass-Chlorine-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\/de\/thermische-massendurchflussmesser\/\">Thermischer Massendurchflussmesser<\/a><\/p>\n\n<ul class=\"wp-block-list\"><li>Explosionsschutzklasse: Ex db IIC T6 Gb \/ Ex tb IIIC T80\u00b0CDb.<\/li>\n\n<li>&nbsp;Ultraweites Turndown-Verh\u00e4ltnis von 1:2500, der Messbereich reicht von 0,1 Nm\/s bis 250 Nm\/s.<\/li>\n\n<li>Volldigitale Signalverarbeitung, h\u00f6here Genauigkeit, Langzeitstabilit\u00e4t.<\/li>\n\n<li>Die vollst\u00e4ndig isolierte elektrische Struktur kann Feldst\u00f6rungen vollst\u00e4ndig herausfiltern.<\/li><\/ul><\/div><\/div><p>If your application flow range is very low and the Chlorine is dry and clean, this <a href=\"https:\/\/metlaninst.com\/de\/p\/thermischer-gasmassendurchflussregler-mtl20fd\/\">Thermal mass flow controller<\/a> will be your choice.<\/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=\"689\" height=\"551\" src=\"http:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Thermal-Gas-Mass-Flow-Meter-Controller-for-Chlorine.jpg\" alt=\"Thermal Gas Mass Flow Meter Controller for Chlorine\" class=\"wp-image-27643 size-full\" srcset=\"https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Thermal-Gas-Mass-Flow-Meter-Controller-for-Chlorine.jpg 689w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Thermal-Gas-Mass-Flow-Meter-Controller-for-Chlorine-300x240.jpg 300w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Thermal-Gas-Mass-Flow-Meter-Controller-for-Chlorine-340x272.jpg 340w, https:\/\/metlaninst.com\/wp-content\/uploads\/2025\/11\/Thermal-Gas-Mass-Flow-Meter-Controller-for-Chlorine-15x12.jpg 15w\" sizes=\"(max-width: 689px) 100vw, 689px\" \/><\/figure><div class=\"wp-block-media-text__content\"><p><a href=\"https:\/\/metlaninst.com\/de\/p\/thermischer-gasmassendurchflussregler-mtl20fd\/\">Thermal Mass Flow Controller<\/a><\/p>\n\n<ol class=\"wp-block-list\"><li>Konzipiert f\u00fcr Gasmessungen mit geringem Durchfluss.<\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/understanding-turndown-ratio\/\">Turn Down Ratio<\/a>: 50:1 for digital mass flow controller; 100:1 for digital mass flow meter.<\/li>\n\n<li>Ansprechzeit: Massendurchflussregler&lt;0,2s; Massendurchflussmesser &lt;0,1s<\/li>\n\n<li>Direkte Messung des Massendurchflusses, automatische Temperaturkompensation<\/li>\n\n<li>Geeignet f\u00fcr verschiedene Hoch- und Niederdruck-Rohrleitungen.<\/li><\/ol><\/div><\/div><p><strong>Metlan Instruments Case Study:<\/strong><\/p><p>In a recent project, the MTL20FD High Accuracy <a href=\"https:\/\/metlaninst.com\/de\/thermal-mass-flow-controllers-for-gas-flow\/\">Thermal Mass Flow Controller <\/a>was applied in a chlorine plant to provide accurate g\/h-level dosing of chlorine gas. The customer was facing:<\/p><ul class=\"wp-block-list\"><li>The need for high-precision flow control (\u00b10.5%)<\/li>\n\n<li>Severe corrosion issues with standard flow meters<\/li>\n\n<li>Integration with automatic control systems (4\u201320 mA DCS interface) The MTL20FD was configured with PTFE sensor surfaces, FFKM seals and direct mass\u2010flow readout in g\/h, delivering improved safety, measurement reliability and process control for corrosive chlorine gas service. <\/li><\/ul><p>Check the details of the <a href=\"https:\/\/metlaninst.com\/de\/case-study-accurate-chlorine-gas-flow-measurement-and-control-using-mtl20fd-high-accuracy-mass-flow-controller\/\">Chlorine flow meter case study<\/a> here.<\/p><h3 class=\"wp-block-heading\" id=\"technologies-to-avoid-unsuitable\"><strong>Technologies to Avoid \/ Unsuitable<\/strong><\/h3><p>The following flow meter types are <strong>strongly discouraged<\/strong> for chlorine service due to safety or reliability concerns:<\/p><ul class=\"wp-block-list\"><li><strong>Turbine meters:<\/strong> Moving parts prone to corrosion and failure in chlorine service.<\/li>\n\n<li><strong>Positive Displacement (PD) meters:<\/strong> Rotors, seals and internal cavities are vulnerable to chlorine attack.<\/li>\n\n<li><strong>Vortex meters or Rotameters:<\/strong> Material compatibility issues, poor accuracy with density changes.<\/li>\n\n<li><strong>Orifice\/Differential Pressure meters:<\/strong> Material corrosion, phase-change sensitivity, poor performance in two-phase flow.<\/li><\/ul><p>In chlorine applications, <strong>safety and corrosion resistance must take precedence<\/strong> over cost or ease of installation.<\/p><h2 class=\"wp-block-heading\" id=\"material-and-installation-considerations\"><strong>Material and Installation Considerations<\/strong><\/h2><h3 class=\"wp-block-heading\" id=\"material-selection\"><strong>Material Selection<\/strong><\/h3><p>For reliable chlorine service:<\/p><ul class=\"wp-block-list\"><li><strong>Preferred alloys:<\/strong> Hastelloy C276\/C22, Monel 400, Inconel (with caution).<\/li>\n\n<li><strong>Linings \/ coatings:<\/strong> PTFE, PFA, PVDF.<\/li>\n\n<li><strong>Seals:<\/strong> FFKM (perfluoroelastomer), PTFE.<\/li>\n\n<li><strong>Avoid:<\/strong> Carbon steel, 304 stainless steel, aluminum, copper alloys, standard elastomers (NBR, EPDM).<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"installation-safety\"><strong>Installation &amp; Safety<\/strong><\/h3><p>Flow meters for chlorine must incorporate:<\/p><ul class=\"wp-block-list\"><li>Full\u2010welded, leak\u2010proof construction.<\/li>\n\n<li>Minimal dead volume and easy purgeability.<\/li>\n\n<li>Certification for pressure ratings beyond expected service conditions.<\/li>\n\n<li>Moisture exclusion and filtration upstream to avoid acid formation and internal corrosion.<\/li>\n\n<li>Explosion\u2010proof\/ATEX certified electronics if used in gaseous chlorine environments.<\/li><\/ul><p>Chlorine is one of the most corrosive, hazardous, and technically demanding media for flow measurement. Its combination of aggressive chemistry, phase sensibility, and toxicity create significant challenges for conventional flow meters.<\/p><p><strong>Key Takeaways:<\/strong><\/p><ul class=\"wp-block-list\"><li>Chlorine is highly corrosive and toxic, requiring specialized corrosion\u2010resistant instrumentation.<\/li>\n\n<li>Measurement is complicated by phase change, density variation, moisture sensitivity and mechanical degradation.<\/li>\n\n<li><strong>Coriolis-Massendurchflussmesser<\/strong> are the gold standard for chlorine (both gas and liquid) due to high accuracy, zero\u2010leak design and material robustness.<\/li>\n\n<li>Thermal mass flow meters may be used under limited conditions (dry, clean gas).<\/li>\n\n<li>Turbine, PD, vortex, or orifice meters are not suitable due to safety and performance risks.<\/li><\/ul><p>With proper technology, materials and installation, plants can achieve safe, accurate and durable chlorine flow measurement, improving process control, reducing downtime and enhancing operator safety.<\/p><h2 class=\"wp-block-heading\" id=\"o\">Other Gas Flow Meter Types Selection Guides<\/h2><ul class=\"wp-block-list\"><li><a href=\"https:\/\/metlaninst.com\/de\/types-of-gas-flow-meter-a-comprehensive-guide\/\">Guide to Choose Gas Flow Meter<\/a><\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/der-beste-leitfaden-fur-co2-durchflussmesser\/\">CO2 Flow Meter<\/a><\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/wie-wahlt-man-einen-durchflussmesser-fur-erdgas-aus\/\">Natural Gas Flow Meter<\/a><\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/die-4-besten-empfohlenen-druckluft-durchflussmesser\/\">Compressed Air Flow Meters<\/a><\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/alles-uber-stickstoffgasdurchflussmesser\/\">Stickstoffgas-Durchflussmesser<\/a><\/li>\n\n<li><a href=\"https:\/\/metlaninst.com\/de\/how-to-choose-argon-flow-meters\/\">Argon Flow Meters<\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>Chlorine (Cl\u2082) is one of the most widely used industrial chemicals in water treatment, chemical processing, paper bleaching, and manufacturing. Despite its importance, chlorine is also one of the most challenging and hazardous substances to measure accurately. Its corrosive nature, toxicity, and sensitive phase behavior require specialized flow meter technologies and carefully selected materials. For [&hellip;]<\/p>","protected":false},"author":1,"featured_media":27642,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[154],"tags":[],"class_list":["post-27641","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-flow-meters"],"_links":{"self":[{"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/posts\/27641","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/comments?post=27641"}],"version-history":[{"count":4,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/posts\/27641\/revisions"}],"predecessor-version":[{"id":27710,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/posts\/27641\/revisions\/27710"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/media\/27642"}],"wp:attachment":[{"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/media?parent=27641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/categories?post=27641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/metlaninst.com\/de\/wp-json\/wp\/v2\/tags?post=27641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}