{"id":113,"date":"2024-08-30T17:04:25","date_gmt":"2024-08-30T17:04:25","guid":{"rendered":"https:\/\/www.veritoengineering.com\/blogs\/?p=113"},"modified":"2026-03-28T21:28:55","modified_gmt":"2026-03-28T15:58:55","slug":"different-types-of-dosing-pumps","status":"publish","type":"post","link":"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/","title":{"rendered":"7 Types of Dosing Pumps: How Each One Works and When to Use It"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Content<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#What_is_a_Dosing_Pump\" title=\"What is a Dosing Pump?\">What is a Dosing Pump?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#What_Is_a_Dosing_Pump\" title=\"What Is a Dosing Pump?\">What Is a Dosing Pump?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#7_Types_of_Dosing_Pumps\" title=\"7 Types of Dosing Pumps\">7 Types of Dosing Pumps<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#1_Electronic_Metering_Pump\" title=\"1. Electronic Metering Pump\">1. Electronic Metering Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#2_Plunger_Pump\" title=\"2. Plunger Pump\">2. Plunger Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#3_Hydraulically_Operated_Diaphragm_Pump\" title=\"3. Hydraulically Operated Diaphragm Pump\">3. Hydraulically Operated Diaphragm Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#4_Mechanically_Actuated_Diaphragm_Pump\" title=\"4. Mechanically Actuated Diaphragm Pump\">4. Mechanically Actuated Diaphragm Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#5_Progressive_Cavity_Screw_Pump\" title=\"5. Progressive Cavity (Screw) Pump\">5. Progressive Cavity (Screw) Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#6_Peristaltic_Tube_Pump\" title=\"6. Peristaltic (Tube) Pump\">6. Peristaltic (Tube) Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#7_Gear_Dosing_Pump\" title=\"7. Gear Dosing Pump\">7. Gear Dosing Pump<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#5_Factors_to_Consider_When_Choosing_a_Dosing_Pump\" title=\"5 Factors to Consider When Choosing a Dosing Pump\">5 Factors to Consider When Choosing a Dosing Pump<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Advanced_Selection_Parameters\" title=\"Advanced Selection Parameters\">Advanced Selection Parameters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Installation_and_Piping_Essentials\" title=\"Installation and Piping Essentials\">Installation and Piping Essentials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Typical_Applications_by_Pump_Type\" title=\"Typical Applications by Pump Type\">Typical Applications by Pump Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Standards_and_Compliance\" title=\"Standards and Compliance\">Standards and Compliance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Common_FAQs\" title=\"Common FAQs\">Common FAQs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Q1_Are_metering_and_dosing_pumps_the_same\" title=\"Q1. Are metering and dosing pumps the same?\">Q1. Are metering and dosing pumps the same?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Q2_Which_pump_is_best_for_viscous_or_abrasive_fluids\" title=\"Q2. Which pump is best for viscous or abrasive fluids?\">Q2. Which pump is best for viscous or abrasive fluids?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Q3_What_is_API_675_and_why_does_it_matter\" title=\"Q3. What is API 675, and why does it matter?\">Q3. What is API 675, and why does it matter?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Q4_What_is_the_typical_lifespan_of_a_diaphragm_or_peristaltic_tube\" title=\"Q4. What is the typical lifespan of a diaphragm or peristaltic tube?\">Q4. What is the typical lifespan of a diaphragm or peristaltic tube?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.veritoengineering.com\/blogs\/different-types-of-dosing-pumps\/#Q5_How_do_I_size_a_dosing_pump_for_my_application\" title=\"Q5. How do I size a dosing pump for my application?\">Q5. How do I size a dosing pump for my application?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><a href=\"https:\/\/www.veritoengineering.com\/dosing-pump.php\">Dosing pumps<\/a> are essential components in industries such as chemical processing, water treatment, pharmaceutical production, and food manufacturing. A dosing pump <strong>delivers precise, repeatable volumes of liquid into a process stream.<\/strong> 7 main types are available. Each type suits different pressures, flow rates, and liquid properties.<\/p>\n<h3 id=\"what-is-a-dosing-pump-intro\"><span class=\"ez-toc-section\" id=\"What_is_a_Dosing_Pump\"><\/span>What is a Dosing Pump?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A dosing pump is a <strong>positive displacement pump<\/strong> designed to deliver precise, repeatable volumes of liquid into a process stream. Unlike transfer pumps, which prioritize bulk flow, dosing pumps focus on <strong>accuracy, repeatability, and chemical compatibility<\/strong>. They are typically used for <strong>chemical injection<\/strong>, <strong>pH correction<\/strong>, <strong>disinfection<\/strong>, and <strong>proportioning<\/strong> applications.<\/p>\n<h2 id=\"what-is-a-dosing-pump\"><span class=\"ez-toc-section\" id=\"What_Is_a_Dosing_Pump\"><\/span>What Is a Dosing Pump?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A dosing pump is a positive displacement pump designed for accuracy, repeatability, and chemical compatibility. It differs from transfer pumps, which focus on bulk flow.<\/p>\n<p>Dosing pumps apply to chemical injection, pH correction, disinfection (DIS), and proportioning applications. The term metering pump (MP) is used interchangeably. &#8220;Metering&#8221; emphasizes precision and calibration. Both terms refer to controlled-volume liquid delivery.<\/p>\n<h2 id=\"7-types-of-dosing-pumps\"><span class=\"ez-toc-section\" id=\"7_Types_of_Dosing_Pumps\"><\/span>7 Types of Dosing Pumps<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The 7 main types differ in operation, pressure range, flow capacity, and suitable liquid characteristics.<\/p>\n<h3 id=\"electronic-metering-pump\"><span class=\"ez-toc-section\" id=\"1_Electronic_Metering_Pump\"><\/span>1. <a href=\"https:\/\/www.veritoengineering.com\/electronic-dosing-pump.php\">Electronic Metering Pump<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Electronic metering pumps <strong>use a stepper motor or solenoid to drive a diaphragm or plunger.<\/strong> This mechanism gives precise flow rate control.<\/p>\n<p>Electronic metering pumps support low- to medium-flow dosing. Flow ranges from 1 ml\/h to 80 L\/h. Maximum pressure reaches 25 bar.<\/p>\n<p>These pumps offer 3 control options: pulse input, 4\u201320 mA analog, and manual stroke-frequency adjustment. They integrate easily with automation systems.<\/p>\n<p>Common applications include 3 use cases:<\/p>\n<ul>\n<li>Boiler water treatment (hydrazine, ammonia)<\/li>\n<li>Cooling tower chemical dosing<\/li>\n<li>Reverse osmosis (RO) antiscalant dosing<\/li>\n<\/ul>\n<p>Key limitation: <strong>electronic metering pumps are sensitive to power supply fluctuations<\/strong> and require regular calibration.<\/p>\n<h3 id=\"plunger-pump\"><span class=\"ez-toc-section\" id=\"2_Plunger_Pump\"><\/span>2. <a href=\"https:\/\/www.veritoengineering.com\/plunger-pump.php\">Plunger Pump<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Plunger pumps <strong>use a reciprocating plunger that draws in and discharges liquid,<\/strong> creating a pulsating flow.<\/p>\n<p>Plunger pumps handle high-pressure applications. Pressure reaches up to 400 bar. This makes plunger pumps suitable where exact discharge per stroke is critical.<\/p>\n<p>These pumps comply with API 675 standards. API 675 ensures repeatability of \u00b11% and defined accuracy. Industries using plunger pumps include oil &amp; gas, petrochemical, and fertilizer production.<\/p>\n<p>Key limitation: <strong>packing wear requires periodic tightening or replacement,<\/strong> increasing maintenance effort.<\/p>\n<h3 id=\"hydraulic-diaphragm-pump\"><span class=\"ez-toc-section\" id=\"3_Hydraulically_Operated_Diaphragm_Pump\"><\/span>3. <a href=\"https:\/\/www.veritoengineering.com\/plunger-pump.php\">Hydraulically Operated Diaphragm Pump<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hydraulically operated diaphragm pumps use a hydraulic cylinder to drive a diaphragm, displacing the liquid.<\/p>\n<p>These pumps combine the precision of plunger pumps with leak-free diaphragm operation. Hydraulic fluid ensures uniform diaphragm motion, extending service life.<\/p>\n<p>Flow ranges reach up to 500 L\/h. Pressure capability extends to 400\u2013500 bar.<\/p>\n<p>Applications include 4 process types:<\/p>\n<ul>\n<li>Acid dosing<\/li>\n<li>Polymer injection<\/li>\n<li>Power plant chemical treatment<\/li>\n<li>Refinery processes<\/li>\n<\/ul>\n<p>Key limitation: these pumps require a separate hydraulic power source and are more complex to maintain.<\/p>\n<h3 id=\"mechanical-diaphragm-pump\"><span class=\"ez-toc-section\" id=\"4_Mechanically_Actuated_Diaphragm_Pump\"><\/span>4. <a href=\"https:\/\/www.veritoengineering.com\/mechanically-actuated-diaphragm-pump.php\">Mechanically Actuated Diaphragm Pump<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Mechanically actuated diaphragm pumps <strong>use a mechanical linkage to drive a diaphragm,<\/strong> similar to a reciprocating pump.<\/p>\n<p>These pumps offer a simple, reliable design. Flow rates range from 5 L\/h to 200 L\/h. Maximum pressure reaches 10 bar.<\/p>\n<p>They are preferred for 3 common uses:<\/p>\n<ul>\n<li>Medium-pressure water treatment<\/li>\n<li>Effluent treatment plant (ETP) chemical dosing<\/li>\n<li>General-purpose chemical neutralization<\/li>\n<\/ul>\n<p>Maintenance is minimal. <strong>Diaphragm replacement occurs every 6\u201312 months<\/strong> depending on duty cycle. Valve cleaning is the other primary task.<\/p>\n<h3 id=\"progressive-cavity-pump\"><span class=\"ez-toc-section\" id=\"5_Progressive_Cavity_Screw_Pump\"><\/span>5. <a href=\"https:\/\/www.veritoengineering.com\/progressive-cavity-screw-pump.php\">Progressive Cavity (Screw) Pump<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Progressive cavity pumps <strong>use a rotating screw that meshes with a stationary stator,<\/strong> creating a progressive cavity that moves the liquid.<\/p>\n<p>These pumps deliver non-pulsating flow and gentle shear. They handle viscosities up to 50,000 cP. Flow and speed have excellent linearity.<\/p>\n<p>Common applications include 4 fluid types:<\/p>\n<ul>\n<li>Polymer dosing<\/li>\n<li>Molasses and food-grade viscous liquids<\/li>\n<li>Slurries and abrasive materials<\/li>\n<li>Viscous emulsions in paints and chemicals<\/li>\n<\/ul>\n<p>Key limitation: <strong>progressive cavity pumps are more expensive than diaphragm types<\/strong> and may have lower flow rates at high pressures. Maintenance involves rotor-stator inspection and periodic lubrication.<\/p>\n<h3 id=\"peristaltic-pump\"><span class=\"ez-toc-section\" id=\"6_Peristaltic_Tube_Pump\"><\/span>6. Peristaltic (Tube) Pump<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Peristaltic pumps <strong>use rotating rollers that compress a flexible tube,<\/strong> pushing liquid through while preventing backflow.<\/p>\n<p>These pumps are self-priming. They handle slurries, outgassing liquids, and chemically aggressive fluids. The flexible tube isolates liquid from all mechanical components, producing contamination-free operation.<\/p>\n<p>Flow ranges from 0.1 to 100 L\/h. Pressure reaches up to 8 bar.<\/p>\n<p>Applications cover 4 chemical types:<\/p>\n<ul>\n<li>Sodium hypochlorite dosing<\/li>\n<li>Ferric chloride and polymer dosing<\/li>\n<li>pH correction in wastewater treatment<\/li>\n<li>Disinfection in pharmaceutical and food production<\/li>\n<\/ul>\n<p>Key limitation: <strong>tube wear limits continuous-duty operation.<\/strong> Tubes last 500\u20131,000 hours depending on pressure and chemical compatibility.<\/p>\n<h3 id=\"gear-dosing-pump\"><span class=\"ez-toc-section\" id=\"7_Gear_Dosing_Pump\"><\/span>7. Gear Dosing Pump<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gear dosing pumps <strong>use 2 intermeshing gears that trap and transport fluid<\/strong> between the teeth and casing.<\/p>\n<p>These pumps deliver smooth, pulse-free flow. They have a compact design. Flow ranges from 0.5 to 150 L\/h. Pressure reaches 15\u201320 bar.<\/p>\n<p>Gear dosing pumps are ideal for 3 fluid types:<\/p>\n<ul>\n<li>Lubricants and fuels<\/li>\n<li>Polymers and additive injection<\/li>\n<li>Oils in continuous lubrication processes<\/li>\n<\/ul>\n<p>Key limitation: <strong>gear pumps are not suitable for abrasive or particulate-laden fluids.<\/strong> Internal leakage at low viscosities reduces accuracy.<\/p>\n<h2 id=\"factors-choosing-dosing-pump\"><span class=\"ez-toc-section\" id=\"5_Factors_to_Consider_When_Choosing_a_Dosing_Pump\"><\/span>5 Factors to Consider When Choosing a Dosing Pump<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>5 primary factors determine which pump suits a given application.<\/p>\n<ol>\n<li>Liquid properties: <strong>assess viscosity, abrasiveness, corrosiveness, and temperature.<\/strong><\/li>\n<li>Flow rate and pressure: <strong>match pump capacity to the process requirements.<\/strong><\/li>\n<li>Accuracy and precision: <strong>define the acceptable dosing tolerance for the application.<\/strong><\/li>\n<li>Maintenance requirements: <strong>evaluate frequency of diaphragm replacement, valve cleaning, and calibration.<\/strong><\/li>\n<li>Cost: <strong>calculate both initial purchase price and ongoing operating costs.<\/strong><\/li>\n<\/ol>\n<h2 id=\"advanced-selection-parameters\"><span class=\"ez-toc-section\" id=\"Advanced_Selection_Parameters\"><\/span>Advanced Selection Parameters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Engineers evaluate 6 additional parameters beyond the primary 5 factors.<\/p>\n<table>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Why It Matters<\/th>\n<th>Typical Range<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Turndown Ratio<\/td>\n<td>Determines flow adjustability; higher ratio = finer control<\/td>\n<td>10:1 to 1000:1<\/td>\n<\/tr>\n<tr>\n<td>Accuracy \/ Repeatability<\/td>\n<td>Impacts chemical efficiency and process consistency<\/td>\n<td>\u00b11% (API 675)<\/td>\n<\/tr>\n<tr>\n<td>Control Type<\/td>\n<td>Defines integration capability<\/td>\n<td>Manual, pulse, 4\u201320 mA, Profibus\/Modbus<\/td>\n<\/tr>\n<tr>\n<td>Material Compatibility<\/td>\n<td>Prevents corrosion and chemical swelling<\/td>\n<td>PP, PVDF, SS316, PTFE, EPDM, FKM<\/td>\n<\/tr>\n<tr>\n<td>Viscosity Handling<\/td>\n<td>Impacts suction and discharge performance<\/td>\n<td>Up to 50,000 cP (PC, peristaltic)<\/td>\n<\/tr>\n<tr>\n<td>Duty Cycle<\/td>\n<td>Distinguishes continuous from batch dosing<\/td>\n<td>Depends on process type<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"installation-piping\"><span class=\"ez-toc-section\" id=\"Installation_and_Piping_Essentials\"><\/span>Installation and Piping Essentials<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Proper piping ensures dosing accuracy and pump longevity. Follow this 6-point checklist:<\/p>\n<ul>\n<li>Keep suction lines short and straight.<\/li>\n<li>Use foot valves, strainers, and non-return valves.<\/li>\n<li>Install back-pressure valves and anti-siphon valves on the discharge side.<\/li>\n<li>Add pulsation dampeners for plunger or diaphragm pump types.<\/li>\n<li>Include calibration columns for flow verification.<\/li>\n<li>Vent lines adequately to avoid air pockets, particularly for outgassing liquids.<\/li>\n<\/ul>\n<h2 id=\"applications-by-pump-type\"><span class=\"ez-toc-section\" id=\"Typical_Applications_by_Pump_Type\"><\/span>Typical Applications by Pump Type<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Pump Type<\/th>\n<th>Common Applications<\/th>\n<th>Industry Examples<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Electronic \/ Solenoid Diaphragm<\/td>\n<td>pH correction, boiler feedwater, RO dosing<\/td>\n<td>Water Treatment, Cooling Towers<\/td>\n<\/tr>\n<tr>\n<td>Plunger<\/td>\n<td>High-pressure additive injection<\/td>\n<td>Petrochemical, Fertilizer<\/td>\n<\/tr>\n<tr>\n<td>Hydraulic Diaphragm<\/td>\n<td>Corrosive acid dosing<\/td>\n<td>Power Plants, Refineries<\/td>\n<\/tr>\n<tr>\n<td>Mechanical Diaphragm<\/td>\n<td>Effluent treatment, neutralization<\/td>\n<td>ETPs, Food Industry<\/td>\n<\/tr>\n<tr>\n<td>Progressive Cavity<\/td>\n<td>Polymer, viscous slurry dosing<\/td>\n<td>Paints, Food, Chemicals<\/td>\n<\/tr>\n<tr>\n<td>Peristaltic<\/td>\n<td>Hypochlorite, polymer, slurry dosing<\/td>\n<td>Water &amp; Wastewater, Pharma<\/td>\n<\/tr>\n<tr>\n<td>Gear<\/td>\n<td>Oils, fuels, lubricants<\/td>\n<td>Lubrication, Chemical Processing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"standards-compliance\"><span class=\"ez-toc-section\" id=\"Standards_and_Compliance\"><\/span>Standards and Compliance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>API 675 is the primary standard for industrial metering pumps. API 675 defines 4 key performance requirements:<\/p>\n<ul>\n<li>\u00b11% steady-state accuracy<\/li>\n<li>\u00b13% repeatability<\/li>\n<li>Leak-free performance<\/li>\n<li>Defined net positive suction head (NPSH) and mechanical stroke integrity<\/li>\n<\/ul>\n<p>Hydraulic and plunger pump types are typically built to this specification for use in regulated industries.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/www.veritoengineering.com\/blogs\/how-to-choose-the-right-dosing-pump\/\">Selecting the right dosing pump<\/a> depends on your specific application requirements. By carefully considering the factors discussed above, you can choose a pump that meets your needs for accuracy, reliability, and efficiency.<\/p>\n<p>Consulting with a <a href=\"https:\/\/www.veritoengineering.com\/\">dosing pump specialist<\/a> like <strong>Verito Engineering Pvt Ltd<\/strong> can also provide valuable guidance and recommendations.<\/p>\n<p>Verito&#8217;s portfolio includes <strong>solenoid, plunger, mechanical &amp; hydraulic diaphragm, and progressive cavity dosing pumps<\/strong> \u2014 engineered for precision, durability, and process efficiency across India&#8217;s water, chemical, and process industries.<\/p>\n<h2 id=\"faq\"><span class=\"ez-toc-section\" id=\"Common_FAQs\"><\/span>Common FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"q1\"><span class=\"ez-toc-section\" id=\"Q1_Are_metering_and_dosing_pumps_the_same\"><\/span>Q1. Are metering and dosing pumps the same?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Mostly yes. <strong>&#8220;Metering&#8221; emphasizes precision and stepless adjustability.<\/strong> &#8220;Dosing&#8221; emphasizes quantity control. Both terms refer to the same pump category.<\/p>\n<h3 id=\"q2\"><span class=\"ez-toc-section\" id=\"Q2_Which_pump_is_best_for_viscous_or_abrasive_fluids\"><\/span>Q2. Which pump is best for viscous or abrasive fluids?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Progressive cavity and peristaltic pumps <strong>are best for viscous, shear-sensitive, or abrasive fluids.<\/strong> Both handle up to 50,000 cP viscosity.<\/p>\n<h3 id=\"q3\"><span class=\"ez-toc-section\" id=\"Q3_What_is_API_675_and_why_does_it_matter\"><\/span>Q3. What is API 675, and why does it matter?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>API 675 <strong>defines performance, accuracy, and testing requirements for controlled-volume metering pumps.<\/strong> It ensures reliability in critical process industries.<\/p>\n<h3 id=\"q4\"><span class=\"ez-toc-section\" id=\"Q4_What_is_the_typical_lifespan_of_a_diaphragm_or_peristaltic_tube\"><\/span>Q4. What is the typical lifespan of a diaphragm or peristaltic tube?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Diaphragm lifespan <strong>ranges from 6 to 18 months<\/strong> depending on duty cycle. Peristaltic tubes last <strong>500 to 1,000 hours<\/strong> depending on pressure and chemical compatibility.<\/p>\n<h3 id=\"q5\"><span class=\"ez-toc-section\" id=\"Q5_How_do_I_size_a_dosing_pump_for_my_application\"><\/span>Q5. How do I size a dosing pump for my application?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Multiply the required chemical flow by a safety factor of 1.1 to 1.25. <strong>Then match the result with operating pressure, material compatibility, and the desired turndown ratio.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dosing pumps are essential components in industries such as chemical processing, water treatment, pharmaceutical production, and food manufacturing. 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