{"id":578174,"date":"2026-02-25T07:51:17","date_gmt":"2026-02-25T06:51:17","guid":{"rendered":"https:\/\/www.processoverskott.se\/what-is-nominal-volume-compared-to-working-volume\/"},"modified":"2026-05-21T14:06:36","modified_gmt":"2026-05-21T12:06:36","slug":"what-is-nominal-volume-compared-to-working-volume","status":"publish","type":"post","link":"https:\/\/www.processoverskott.se\/en\/what-is-nominal-volume-compared-to-working-volume\/","title":{"rendered":"What is nominal volume compared to working volume?"},"content":{"rendered":"<h2>What is nominal volume compared to working volume?<\/h2>\n<p>When sizing and selecting industrial tanks, the terms nominal volume and working volume are often used to describe the capacity of the tank.<\/p>\n<p>Nominal volume refers to the total geometric volume of the tank while working volume describes the volume actually used during normal operation depending on process and safety requirements.<\/p>\n<p>Process\u00f6verskott offers both new and used stainless steel tanks in stainless steel 304 and acid-proof 316 where different volume data may occur depending on the design, specification and application.<\/p>\n<h2>What is nominal volume?<\/h2>\n<p>Nominal volume describes the total geometric capacity of the tank based on the tank dimensions and construction.<\/p>\n<p>It is the maximum theoretical volume that the tank can contain if it is filled up to the defined upper level depending on the design.<\/p>\n<p>Nominal volume is often used as a reference in the classification, marking and technical specification of tanks and pressure receptacles.<\/p>\n<h2>What is working volume?<\/h2>\n<p>Working volume describes the volume used under normal operating conditions of the process.<\/p>\n<p>The working volume is usually lower than the nominal volume because account needs to be taken of, for example<\/p>\n<p>Safety margins<\/p>\n<p>Overfill protection<\/p>\n<p>Internal components such as stirrers<\/p>\n<p>Foaming or expansion<\/p>\n<p>Temperature variations<\/p>\n<p>Process-related operating conditions<\/p>\n<p>The actual working volume varies depending on the design and use of the tank.<\/p>\n<h2>Why is the difference important?<\/h2>\n<p>The difference between nominal and working volume is important when planning and dimensioning industrial processes.<\/p>\n<p>It is usually the working volume that influences, for example, batch size, buffer capacity and production operating conditions depending on the process and application.<\/p>\n<p>In design and process planning, both volume values are often taken into account depending on the application.<\/p>\n<h2>Materials and the impact of construction<\/h2>\n<p>Tanks in stainless steel 304 or acid-proof 316 can be equipped with, for example, agitators, CIP systems, temperature-related solutions and other internal equipment depending on the specification.<\/p>\n<p>Internal components and construction can affect the working volume as they occupy space inside the tank.<\/p>\n<p>The design of the tank varies depending on the process requirements and the application.<\/p>\n<h2>Pressurized and atmospheric solutions<\/h2>\n<p>In pressurized tanks, additional safety space may be needed depending on the design and operating conditions.<\/p>\n<p>This can affect the difference between nominal and working volume depending on, for example, pressure level, temperature and process requirements.<\/p>\n<p>Atmospheric tanks may also have safety margins to reduce the risk of overfilling during operation.<\/p>\n<p>Documentation linked to, for example, PED and CE may be available depending on the design and classification of the tank.<\/p>\n<h2>Applications in industry<\/h2>\n<p>The concepts of nominal and working volume are used in several types of industrial processes.<\/p>\n<p>Examples of applications include food production, chemical industry, pharmaceutical related processes and water treatment where proper volume handling can be important for operation and process control.<\/p>\n<h2>Technical options and equipment<\/h2>\n<p>Tanks can be equipped with, for example:<\/p>\n<p>Agitators and mixing equipment<\/p>\n<p>Temperature-related solutions such as sheathing or insulation<\/p>\n<p>Level measurement and overfill protection<\/p>\n<p>CIP system for cleaning<\/p>\n<p>Valves and process connections<\/p>\n<p>Pressure monitoring and safety-related functions<\/p>\n<p>The design varies depending on the model, specification and application.<\/p>\n<h2>Volume and capacity<\/h2>\n<p>Industrial and process tanks come in many different sizes depending on the process and capacity needs.<\/p>\n<p>Volume can influence factors such as design, safety margins and peripheral equipment needs depending on the application and operating conditions.<\/p>\n<h2>Benefits of correct sizing<\/h2>\n<p>Correct understanding of nominal and working volume is often used in:<\/p>\n<p>Batch size planning<\/p>\n<p>Sizing of process equipment<\/p>\n<p>Buffer capacity and flow management<\/p>\n<p>Safe operation and overfill protection<\/p>\n<p>Layout and production planning<\/p>\n<h2>New and used tanks<\/h2>\n<p>Process\u00f6verskott offers both new and used process tanks and industrial containers in various designs and sizes.<\/p>\n<p>Tanks may be equipped with different technical solutions depending on the model and previous use. Availability varies depending on stock status and specification. <\/p>\n<h2>Choosing the right solution<\/h2>\n<p>Tank selection and sizing is often based on factors such as process requirements, fluid properties, temperature, pressure conditions and desired working volume.<\/p>\n<p>Process surplus can provide information on different designs and technical options depending on the application and area of use.<\/p>\n<h2>Executive summary<\/h2>\n<p>Nominal volume describes the total geometric capacity of the tank while working volume describes the volume used under normal operating conditions.<\/p>\n<p>The difference between these values is influenced by, for example, safety margins, internal components and process requirements depending on the design and application.<\/p>\n<h2>Frequently asked questions about nominal and working volume<\/h2>\n<h3>What is nominal volume?<\/h3>\n<p>Nominal volume describes the total geometric capacity of the tank based on its dimensions and construction.<\/p>\n<h3>What is working volume?<\/h3>\n<p>Working volume describes the volume used under normal operating conditions of the process.<\/p>\n<h3>Why is the working volume lower?<\/h3>\n<p>Working volume is affected by factors such as safety margins, internal components and operating conditions.<\/p>\n<h3>Does agitator affect working volume?<\/h3>\n<p>Internal equipment such as agitators may affect the available volume inside the tank depending on the design.<\/p>\n<h3>Can two tanks have the same nominal volume but different working volume?<\/h3>\n<p>The working volume may vary between different tanks depending on the design, equipment and application.<\/p><\/p>\n\n<script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Vad \u00e4r skillnaden mellan nominell och arbetande volym?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nominell volym \u00e4r tankens totala geometriska kapacitet, medan arbetande volym \u00e4r den faktiska volym som kan anv\u00e4ndas s\u00e4kert i drift.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Varf\u00f6r \u00e4r arbetande volym alltid l\u00e4gre?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Eftersom man m\u00e5ste ta h\u00e4nsyn till s\u00e4kerhetsmarginaler, \u00f6verfyllnadsskydd, interna komponenter och eventuellt expansionsutrymme.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Vilken volym ska man dimensionera efter?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Det \u00e4r alltid arbetande volym som ska anv\u00e4ndas vid planering av batchstorlek och produktion.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"P\u00e5verkar omr\u00f6rare arbetande volym?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ja, omr\u00f6rare och andra interna komponenter minskar den tillg\u00e4ngliga volymen i tanken.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Kan tv\u00e5 tankar med samma nominella volym ha olika arbetande volym?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ja, beroende p\u00e5 konstruktion, tillval och s\u00e4kerhetskrav kan den arbetande volymen skilja sig mellan olika tankmodeller.\"\n      }\n    }\n  ]\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>What is nominal volume compared to working volume? When sizing and selecting industrial tanks, the terms nominal volume and working volume are often used to describe the capacity of the tank. Nominal volume refers to the total geometric volume of the tank while working volume describes the volume actually used during normal operation depending on [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":577607,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30554,30566],"tags":[30605],"class_list":["post-578174","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","category-volume-size","tag-volume-size","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"_links":{"self":[{"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/posts\/578174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/comments?post=578174"}],"version-history":[{"count":1,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/posts\/578174\/revisions"}],"predecessor-version":[{"id":578180,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/posts\/578174\/revisions\/578180"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/media\/577607"}],"wp:attachment":[{"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/media?parent=578174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/categories?post=578174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.processoverskott.se\/en\/wp-json\/wp\/v2\/tags?post=578174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}