{"id":13844,"date":"2022-05-06T11:29:29","date_gmt":"2022-05-06T03:29:29","guid":{"rendered":"https:\/\/www.rocker.com.tw\/?post_type=application&#038;p=13844"},"modified":"2026-04-21T10:12:58","modified_gmt":"2026-04-21T02:12:58","slug":"vacuum-filtration","status":"publish","type":"application","link":"https:\/\/www.rocker.com.tw\/en\/application\/vacuum-filtration\/","title":{"rendered":"Vacuum Filtration"},"content":{"rendered":"<h2>What is vacuum filtration?<\/h2>\n<p>&nbsp;<\/p>\n<p>Vacuum filtration is a vital technique used in laboratories and industrial processes for the separation and filtration of solids from liquids through the application of reduced pressure. This topic holds significant importance due to its wide range of applications in various fields, including chemistry, biology, and environmental analysis. Vacuum filtration allows for efficient particle removal, clarification of solutions, and isolation of precipitates or solid residues.<\/p>\n<p>&nbsp;<\/p>\n<h2>How to set up vacuum filtration?<\/h2>\n<p>&nbsp;<\/p>\n<p>By discussing vacuum filtration, we gain insights into its principles, methodologies, and advancements, which contribute to improved sample purification, separation of mixtures, and removal of impurities. Exploring the topic of vacuum filtration is crucial for researchers, scientists, and technicians seeking reliable and efficient methods for liquid-solid separation and sample preparation in their respective fields.<\/p>\n<blockquote><p><!-- Begin Mailchimp Signup Form --><\/p>\n<div id=\"mc_embed_signup\">\n<form id=\"mc-embedded-subscribe-form\" class=\"validate\" action=\"https:\/\/rocker.us12.list-manage.com\/subscribe\/post?u=58ef36f6c5073517cb6c76cc7&amp;id=454e696053&amp;f_id=0072bee0f0\" method=\"post\" name=\"mc-embedded-subscribe-form\" target=\"_self\">\n<div id=\"mc_embed_signup_scroll\">\n<h3>Subscribe for firsthand information!<\/h3>\n<p>&nbsp;<\/p>\n<div class=\"mc-field-group\"><label for=\"mce-EMAIL\">Email<span class=\"asterisk\">:<\/span> <\/label> <input id=\"mce-EMAIL\" class=\"required email\" name=\"EMAIL\" required=\"\" type=\"email\" value=\"\" \/> <span id=\"mce-EMAIL-HELPERTEXT\" class=\"helper_text\"><\/span> <input id=\"mc-embedded-subscribe\" class=\"button\" name=\"subscribe\" type=\"submit\" value=\"Subscribe\" \/><\/div>\n<div id=\"mce-responses\" class=\"clear\">\n<div id=\"mce-error-response\" class=\"response\" style=\"display: none;\">\u00a0<\/div>\n<div id=\"mce-success-response\" class=\"response\" style=\"display: none;\">\u00a0<\/div>\n<\/div>\n<p><!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups--><\/p>\n<div style=\"position: absolute; left: -5000px;\" aria-hidden=\"true\"><input tabindex=\"-1\" name=\"b_58ef36f6c5073517cb6c76cc7_454e696053\" type=\"text\" value=\"\" \/><\/div>\n<\/div>\n<\/form>\n<\/div>\n<p><!--End mc_embed_signup--><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<div style=\"background-color: #e9eef0; padding: 10px 20px;\"><span style=\"font-size: 20px;\"><strong>Content<\/strong><\/span><br \/>\n<a href=\"#P1\">Laboratory Filtration Methods<\/a><br \/>\n<a href=\"#P2\">Vacuum Filtration Principle<\/a><br \/>\n<a href=\"#P3\">Vacuum Filtration Setup: Vacuum Pump, Safety Trap, Filter Holder, Receiver Bottle<\/a><br \/>\n<a href=\"#P4\">Vacuum Filtration Applications<\/a><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"P1\"><\/a>Laboratory Filtration Methods<\/h2>\n<p>&nbsp;<\/p>\n<p>Filtration aims to hinder suspended particles in a liquid using membrane filters or porous materials, thereby separating solid and liquid substances in a heterogeneous mixture to achieve separation and clarification. There are three commonly used laboratory filtration methods: gravity filtration, vacuum filtration, and pressure filtration. The appropriate filtration method should be selected based on the characteristics of the sample to be filtered, the desired efficiency in removing suspended particles, and the time required for filtration.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"P2\"><\/a>Vacuum Filtration Principles<\/h2>\n<p>&nbsp;<\/p>\n<p>Vacuum filtration, also referred to as negative pressure filtration, reduced pressure filtration, or suction filtration, involves creating a negative pressure in the container beneath the membrane. This negative pressure accelerates the liquid to pass through the membrane, resulting in the separation of solids from the liquid.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"P3\"><\/a>Vacuum Filtration Setup<\/h2>\n<p>&nbsp;<\/p>\n<p>Vacuum filtration setup often includes vacuum pump, safety trap, vacuum filtration apparatus(vacuum filter holder and receiver flask).<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2022\/05\/\u7de9\u885d\u74f6_EN-scaled.jpg\" alt=\"laboratory filtration apparatus including vacuum pump, safety trap, filter holder and flask.\" width=\"697\" height=\"412\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>\u00a0<\/h3>\n<h3>A. Vacuum Pump<\/h3>\n<p>&nbsp;<\/p>\n<p>The vacuum pump utilized in vacuum filtration is responsible for extracting gas molecules from a designated space, typically a laboratory flask or bottle, in order to achieve a desired pressure difference and facilitate the filtration process. In general, a pump with a vacuum of 685 mmHg is suitable for most filtration experiments, as this value represents a pressure difference of 90%. Only a small number of experiments may necessitate pumps with higher vacuum capabilities. (Note: 1 atmosphere is equivalent to 760 mmHg.)<\/p>\n<p>&nbsp;<\/p>\n<h3>How to select a proper lab vacuum pump?<\/h3>\n<p>&nbsp;<\/p>\n<table class=\"no-boarder\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><iframe title=\"How to choose a proper pump for your lab?\" src=\"https:\/\/www.youtube.com\/embed\/LuAwXKjy44k\" width=\"320\" height=\"180\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/td>\n<td style=\"width: 50%;\"><iframe title=\"Why vacuum looks odd after conversion?\" src=\"https:\/\/www.youtube.com\/embed\/p7K_3G4Fnek\" width=\"320\" height=\"180\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>\n<p>Select the type of pump based on the nature of the sample, whether it is a general water solution, organic solvent, or corrosive substance. Watch and learn how to choose the right pump for your laboratory.<\/p>\n<\/li>\n<li>\n<p>When selecting the appropriate vacuum, consider the characteristics of the sample, such as the presence of suspended particles and the viscosity of the liquid. Generally, samples with higher viscosity or more impurities require a higher vacuum level to achieve satisfactory results. If you encounter difficulties with vacuum conversion, learn how to perform correct vacuum conversion to ensure accurate measurements.<\/p>\n<\/li>\n<li>\n<p>Choose a suitable pump flow capacity based on the volume of the filter bottle. The larger the filter bottle, the higher the required flow rate should be.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<blockquote>\n<table class=\"no-border\">\n<tbody>\n<tr>\n<td style=\"vertical-align: middle;\" rowspan=\"2\" width=\"60%\">\n<p>Reasons to choose Rocker Oil-free Vacuum Pumps rather than general water pumps:<\/p>\n<ul>\n<li>Stable vacuum degree and decompression efficiency under different temperature.<\/li>\n<li>\u00a0More environmental friendly for not needing additional water.<\/li>\n<li>Create no water pollution.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-pump-en\/oil-free-vacuum-pump-en\/rocker-300-oil-free-vacuum-pump\/\" target=\"_blank\" rel=\"noopener\">Rocker 300 Vacuum Pump<\/a> fits most laboratory experiments with Max. vacuum at 685 mmHg.<\/p>\n<\/td>\n<td width=\"40%\">\n<p><img decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2020\/06\/Rocker300_01.jpg\" alt=\"Rocker 300, a lab vacuum pump\" width=\"500\" height=\"383\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-pump-en\/oil-free-vacuum-pump-en\/rocker-300-oil-free-vacuum-pump\/\">Rocker 300 oil free vacuum pump<\/a> &#8211; laboratory vacuum pump for filtration<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Read more: <a href=\"#P5\">Chart &#8211; Rocker Laboratory Filtration Pumps (Appendix I)<\/a><\/p>\n<\/blockquote>\n<p>&nbsp;<\/p>\n<h3>B. Safety Trap<\/h3>\n<p>&nbsp;<\/p>\n<p>A safety trap is typically installed between the pump and the receiver bottle in a vacuum filtration system. Its purpose is to prevent the filtrate from flowing back into the pump as a result of improper operation, which could potentially damage the pump. In a laboratory filtration system, a safety trap can be a GL45 glass storage bottle, a vacuum bottle, or a waste bottle.<\/p>\n<blockquote>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=UObBsD7fAUQ\" target=\"_blank\" rel=\"noopener\">How do you protect pumps from liquid damage? <\/a>Prote\u2122 Filter Cartridge\u00a0 (YouTube video link)<\/p>\n<\/blockquote>\n<p>&nbsp;<\/p>\n<h3>C. Vacuum Filter Holder(vacuum filtration apparatus)<\/h3>\n<p>&nbsp;<\/p>\n<p>Filter holders are used to secure filter membranes and facilitate the passage of liquid through the membrane during filtration. They can be attached to the top of receiver bottles using either silicone stoppers or a spin lock mechanism.<\/p>\n<p>&nbsp;<\/p>\n<h3>D. Receiver Flask(vacuum filtration apparatus)<\/h3>\n<p>&nbsp;<\/p>\n<p>Receiver flasks, also referred to as suction flasks or waste flasks, serve as the containers that are connected to the vacuum pump to collect the filtrate during the filtration process. These flasks are sometimes connected to a safety trap using silicone tubes<\/p>\n<p>&nbsp;<\/p>\n<h3>How to select proper vacuum filtration apparatus (filter holders and receiver flasks)?<\/h3>\n<p>&nbsp;<\/p>\n<ul>\n<li>Filter holders are to be chosen based on the volume of sample. Common size of filter holder includes 25 mm, 47 mm and 90 mm (in diameter). The larger the volume of sample, the larger size holder is suggested.<\/li>\n<li>Material of filter holder and receiver flasks should be selected according to chemical characteristics of sample solvent(s). For more information, please refer to chemical compatibility chart.<\/li>\n<\/ul>\n<blockquote><p>Read more: <a href=\"#P7\">Rocker Vacuum Filter Holders (Appendix 3)<\/a><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"P4\"><\/a>Vacuum Filtration Application(s)<\/h2>\n<p>&nbsp;<\/p>\n<ul>\n<li>Aqueous solution filtration, such as suspended solids, microorganisms, etc.<\/li>\n<li>Clarification of cell culture media and buffers.<\/li>\n<li>Separation of chemical synthesis.<\/li>\n<li>Roughing filtration of industrial solvent.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Literature references<\/h3>\n<p>&nbsp;<\/p>\n<table style=\"width: 870px;\" width=\"1145\">\n<tbody>\n<tr>\n<td style=\"width: 348px;\" width=\"40%\">Literature<\/td>\n<td style=\"width: 261px;\" width=\"30%\">Author<\/td>\n<td style=\"width: 261px;\" width=\"30%\">Method applied<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 348px;\" width=\"493\"><a href=\"https:\/\/www.nature.com\/articles\/srep18816\">Cryopreservation of the gorgonian endosymbiont\u00a0Symbiodinium<\/a><\/td>\n<td style=\"width: 261px;\" width=\"259\">Gabriella Chong et al.<\/td>\n<td style=\"width: 261px;\" width=\"492\">Seawater filtration (filtered seawater (FSW) preparation)<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 348px;\" width=\"493\"><a href=\"https:\/\/www.nature.com\/articles\/s41598-019-55374-6\">First instance of settlement by cryopreserved coral larvae in symbiotic association with dinoflagellates<\/a><\/td>\n<td style=\"width: 261px;\" width=\"235\">Luca Cirino et al.<\/td>\n<td style=\"width: 261px;\" width=\"271\">Seawater filtration (filtered seawater (FSW) preparation)<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 348px;\" width=\"493\"><a href=\"https:\/\/www.nature.com\/articles\/s41598-021-03458-7\">Detection and characterization of small-sized microplastics (\u2265\u20095\u00a0\u00b5m) in milk products<\/a><\/td>\n<td style=\"width: 261px;\" width=\"235\">Paulo A. Da Costa Filho et al.<\/td>\n<td style=\"width: 261px;\" width=\"271\">Milk sample filtration<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 348px;\" width=\"394\"><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6790100\/?report=classic\">Solvent polarity mediates phytochemical yield and antioxidant capacity of\u00a0Isatis tinctoria<\/a><\/td>\n<td style=\"width: 261px;\">Abdul Wakeel et al.<\/td>\n<td style=\"width: 261px;\">Vacuum drying<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"P5\"><\/a>Appendix 1: Rocker Oil-free Vacuum Pump<\/h2>\n<p>All Rocker&#8217; vacuuming pumps are oil-mist-free and maintenance-free.\u00a0<\/p>\n<p>&nbsp;<\/p>\n<table width=\"97%\">\n<tbody>\n<tr>\n<td width=\"17%\">\n<p>&nbsp;<\/p>\n<\/td>\n<td colspan=\"3\" width=\"62%\">\n<p>For air<\/p>\n<\/td>\n<td width=\"20%\">\n<p>For liquid<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\">\n<p>Series<\/p>\n<\/td>\n<td width=\"20%\">\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product-category\/laboratory-pump-en\/oil-free-vacuum-pump-en\/\" target=\"_blank\" rel=\"noopener\">Rocker Vacuum Pump<\/a><\/p>\n<\/td>\n<td width=\"20%\">\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product-category\/laboratory-pump-en\/ptfe-coated-chemical-resistant-vacuum-pump-en\/\" target=\"_blank\" rel=\"noopener\">Rocker C PTFE-coated Pump<\/a><\/p>\n<\/td>\n<td width=\"20%\">\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product-category\/laboratory-pump-en\/chemical-resistant-vacuum-pump-en\/\" target=\"_blank\" rel=\"noopener\">Chemker Chemical Resistant Pump<\/a><\/p>\n<\/td>\n<td width=\"20%\">\n<p><a href=\"https:\/\/www.rocker.com.tw\/en\/product-category\/laboratory-pump-en\/diaphragm-liquid-pump\/\" target=\"_blank\" rel=\"noopener\">Alligator Water Pump<\/a><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\">Type<\/td>\n<td colspan=\"4\" width=\"82%\">\n<p>Oil-free<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\">\n<p>Drive<\/p>\n<\/td>\n<td colspan=\"2\" width=\"41%\">\n<p>Piston<\/p>\n<\/td>\n<td colspan=\"2\" width=\"41%\">\n<p>Diaphragm<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\">\n<p>Proper for Sample<\/p>\n<\/td>\n<td width=\"20%\">\n<p>Non-chemical<\/p>\n<\/td>\n<td width=\"20%\">\n<p>Organic solvent<\/p>\n<\/td>\n<td width=\"20%\">\n<p>Organic or corrosive solvent<\/p>\n<\/td>\n<td width=\"20%\">\n<p>Non-chemical<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\">\n<p>Feature<\/p>\n<\/td>\n<td width=\"20%\">\n<p>\u2022 Prote\u2122 Filter Cartridge<\/p>\n<\/td>\n<td width=\"20%\">\n<p>\u2022 PTFE-coated, suitable for most chemicals.<\/p>\n<\/td>\n<td width=\"20%\">\n<p>\u2022 PTFE-made. High chemical resistance.<\/p>\n<\/td>\n<td width=\"20%\">\n<p>\u2022 Draws both air and liquid, direct drainage.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>Appendix 2:\u00a0Rocker Vacuum Filtration System Applications<\/h2>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"73\">\n<p>Applications<\/p>\n<\/td>\n<td width=\"153\">\n<p>Vacuum filtration<\/p>\n<\/td>\n<td width=\"153\">\n<p>Solvent purification<\/p>\n<\/td>\n<td width=\"153\">\n<p>Microbiological filtration<\/p>\n<\/td>\n<td width=\"153\">\n<p>Suspended solids filtration<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\" width=\"73\">\n<p>ROCKER vacuum filtration system<\/p>\n<p>&nbsp;<\/p>\n<\/td>\n<td>\n<p><img decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1161\" alt=\"Vacuum filtration system Lafil 300-LF 30\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1163\" alt=\"solvent purification system Lafil 300C-VF 12\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1162\" alt=\"Microbiological filtration system Lafil 300-SF10\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1161\" alt=\"Suspended solids filtration system Lafil 300-LF 30\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><a title=\"Vacuum Filtration System\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/vacuum-filtration-system\/lafil-300-lf-30-filtration-system\/\" target=\"_blank\" rel=\"noopener\">Lafil 300 &#8211; LF 30<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"Solvent purification system\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/solvent-filtration-system\/lafil-300c-vf-12-filtration-system-for-solvent\/\" target=\"_blank\" rel=\"noopener\">Lafil 300C &#8211; VF 12<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"microbiological testing\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/vacuum-filtration-system\/lafil-300-sf-10-lafil-300-lf-32-filtration-system\/\" target=\"_blank\" rel=\"noopener\">Lafil 300 &#8211; SF 10<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"Suspended solids filtration\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/vacuum-filtration-system\/lafil-300-lf-30-filtration-system\/\" target=\"_blank\" rel=\"noopener\">Lafil 300 &#8211; LF 30<\/a><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1197\" alt=\"Vacuum filtration system Rocker 300-MF 31\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td width=\"153\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1200\" alt=\"Solvent purification system Rocker 300C - VF12\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td width=\"153\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/?attachment_id=1178\" alt=\"Microbiological filtration system Multivac 301-MB-A\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td width=\"153\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2020\/08\/MultiVac310_MS_A_01.jpg\" alt=\"Suspended solids filtration system MultiVac 310-MS-A\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><a title=\"Vacuum Filtration System\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/vacuum-filtration-system\/rocker-300-mf-31-filtration-system\/\" target=\"_blank\" rel=\"noopener\">Rocker 300 &#8211; MF 31<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"Solvent purification system\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/solvent-filtration-system\/rocker-300c-vf-12-filtration-system-for-solvent\/\" target=\"_blank\" rel=\"noopener\">Rocker 300C &#8211; VF 12<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"microbiological testing\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/multi-branch-filtration-system\/multivac-301-mb-a-multi-branch-filtration-system\/\" target=\"_blank\" rel=\"noopener\">MultiVac 301 &#8211; MB &#8211; A<\/a><\/p>\n<\/td>\n<td>\n<p><a title=\"Suspended solids filtration\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/multi-branch-filtration-system\/multivac-310-ms-a-multi-branch-filtration-system\/\" target=\"_blank\" rel=\"noopener\">MultiVac 310 &#8211; MS &#8211; A<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2><a id=\"P7\"><\/a>Appendix 3: \u00a0Rocker Vacuum Filtration apparatus (filter holder)<\/h2>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td rowspan=\"2\" width=\"99\">\n<p>&nbsp;<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">MF Series<\/td>\n<td rowspan=\"2\" width=\"134\"><a title=\"filter holder laboratory\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/filter-holder\/lf-5-5a-pes-filter-holder\/\" target=\"_blank\" rel=\"noopener\">LF Series<\/a><\/td>\n<td rowspan=\"2\" width=\"134\"><a title=\"membrane filter holder\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/filtration-apparatus\/sf-10-lf-32-filtration-apparatus\/\" target=\"_blank\" rel=\"noopener\">SF Series<\/a><\/td>\n<td rowspan=\"2\" width=\"134\"><a title=\"vacuum filter holder\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/filtration-apparatus\/vf-7-filtration-apparatus\/\" target=\"_blank\" rel=\"noopener\">VF Series<\/a><\/td>\n<\/tr>\n<tr>\n<td width=\"67\">\n<p><a title=\"magnetic filter holder\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/filter-holder\/mf-5-5a-pro-magnetic-filter-holder\/\" target=\"_blank\" rel=\"noopener\">MF Pro<\/a><\/p>\n<\/td>\n<td width=\"67\">\n<p><a title=\"magnetic filter holder\" href=\"https:\/\/www.rocker.com.tw\/en\/product\/laboratory-filtration-system\/filter-holder\/mf-3-3a-pro-magnetic-filter-holder\/\" target=\"_blank\" rel=\"noopener\">MF<\/a><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>&nbsp;<\/p>\n<\/td>\n<td colspan=\"2\">\n<p><img decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2022\/08\/SelectScience_2MF3MF5.jpg\" alt=\"vacuum filter holder\" width=\"300\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2020\/09\/LF5_5a.jpg\" alt=\"vacuum filter holder\" width=\"300\" height=\"225\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2022\/08\/SelectScience_5SF1-SF3SF5.jpg\" alt=\"vacuum filter holder\" width=\"300\" height=\"300\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2021\/05\/300ml-Glass-filter-holder_VF7-scaled-e1621388776634.jpg\" alt=\"vacuum filter holder\" width=\"300\" height=\"264\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Connection Method<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">\n<p>Magnetic coupling<\/p>\n<\/td>\n<td width=\"134\">\n<p>Spin-lock design<\/p>\n<\/td>\n<td width=\"134\">\n<p>Spin-lock design<\/p>\n<\/td>\n<td width=\"134\">\n<p>Clamp<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Filter Membrane Diameter<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">\n<p>47 mm<\/p>\n<\/td>\n<td width=\"134\">\n<p>47 mm<\/p>\n<\/td>\n<td width=\"134\">\n<p>47 mm<\/p>\n<\/td>\n<td width=\"134\">\n<p>25 \/ 47 \/ 90 mm<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Filter Holder Material<\/p>\n<\/td>\n<td width=\"67\">\n<p>PPSU<\/p>\n<\/td>\n<td width=\"67\">\n<p>PES<\/p>\n<\/td>\n<td width=\"134\">\n<p>PES<\/p>\n<\/td>\n<td width=\"134\">\n<p>SS316 Stainless Steel<\/p>\n<\/td>\n<td width=\"134\">\n<p>Borosilicate glass<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Autoclave<\/p>\n<\/td>\n<td width=\"67\">\n<p>V<\/p>\n<\/td>\n<td width=\"67\">\n<p>V<\/p>\n<\/td>\n<td width=\"134\">\n<p>V<\/p>\n<\/td>\n<td width=\"134\">\n<p>V<\/p>\n<\/td>\n<td width=\"134\">\n<p>V<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Features<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">\n<p>\u2022 one-hand operation<\/p>\n<p>\u2022 Compatible with various kinds of vacuum bottles<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 Clamp-free spin-lock design<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 Rapid flame sterilization<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 Quick and easy disconnection with screwthread connector at side arm<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"99\">\n<p>Applications<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">\n<p>\u2022 vacuum filtration<\/p>\n<p>\u2022 total suspended solids in water<\/p>\n<p>\u2022 Continuous vacuum filtration<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 vacuum filtration<\/p>\n<p>\u2022 total suspended solids in water<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 microbial testing<\/p>\n<p>\u2022 total suspended solids in water<\/p>\n<\/td>\n<td width=\"134\">\n<p>\u2022 HPLC mobile phase preparation<\/p>\n<p>\u2022 Organic solvent filtration<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_29055\" aria-describedby=\"caption-attachment-29055\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.rocker.com.tw\/en\/contact\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-29055 size-full\" src=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2023\/04\/rocker-scientific-global-dealer-network-quick-quote-1.webp-1.webp\" alt=\"Rocker Global Dealer Network banner offering dedicated support from local experts in USA, India, China, Indonesia, Malaysia, and worldwide for quick quotes.\" width=\"900\" height=\"120\" srcset=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2023\/04\/rocker-scientific-global-dealer-network-quick-quote-1.webp-1.webp 900w, https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2023\/04\/rocker-scientific-global-dealer-network-quick-quote-1.webp-1-768x102.webp 768w, https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2023\/04\/rocker-scientific-global-dealer-network-quick-quote-1.webp-1-600x80.webp 600w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption id=\"caption-attachment-29055\" class=\"wp-caption-text\">Global expert support across USA, Asia, and worldwide. \u25b2Click to get a quick quote from your local Rocker dealer.<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><strong>Reference:<br \/>\n<\/strong><\/p>\n<p>1. <a href=\"https:\/\/teaching.ch.ntu.edu.tw\/\" rel=\"nofollow\">https:\/\/teaching.ch.ntu.edu.tw\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is vacuum filtration? &nbsp; Vacuum filtration is a vital technique used in laboratories and industrial processes for the separation and filtration of solids from liquids through the application of reduced pressure. This topic holds significant importance due to its wide range of applications in various fields, including chemistry, biology, and environmental analysis. Vacuum filtration [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4892,"parent":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"application-category":[],"class_list":["post-13844","application","type-application","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is vacuum filtration? | select right vacuum filtration apparatus<\/title>\n<meta name=\"description\" content=\"Vacuum filtration is to create negative pressure to accelerate liquid to pass through the membrane and separate solid from liquid.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rocker.com.tw\/en\/application\/vacuum-filtration\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is vacuum filtration? | select right vacuum filtration apparatus\" \/>\n<meta property=\"og:description\" content=\"Vacuum filtration is to create negative pressure to accelerate liquid to pass through the membrane and separate solid from liquid.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rocker.com.tw\/en\/application\/vacuum-filtration\/\" \/>\n<meta property=\"og:site_name\" content=\"Rocker\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-21T02:12:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2022\/05\/\u7de9\u885d\u74f6_EN-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1572\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.rocker.com.tw\/wp-content\/uploads\/2022\/05\/\u7de9\u885d\u74f6_EN-scaled.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What is vacuum filtration? 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