{"id":6152,"date":"2026-10-28T17:56:31","date_gmt":"2026-10-28T16:56:31","guid":{"rendered":"https:\/\/www.s-vt.net\/?page_id=6152"},"modified":"2026-11-04T11:09:06","modified_gmt":"2026-11-04T10:09:06","slug":"maintenance-servicing","status":"publish","type":"page","link":"https:\/\/s-vt.net\/en\/maintenance-servicing\/","title":{"rendered":"Maintenance &#038; Servicing"},"content":{"rendered":"<div style='' class=''>\n<section class='page-content' style=''  >\n<section class='container'>\n<div style='' class=''>\n<div class='row' style=''>\n<div style='' class=''>\n<div class='col-md-12 ' style=''>\n<div style='' class=''>\n<div class='cma-wysiwyg-editor'>\n<p class=\"svt-lead2\">Regular maintenance keeps your mixing and homogenising plant available and prevents unplanned downtime. We service homogenisers at our factory in Weyhe \u2013 usually within 2\u20133 weeks, from 5 working days with advance planning \u2013 or on site at your plant. We work with first-hand design knowledge: homogenising technology has been part of our family for more than 45 years (<a href=\"https:\/\/www.s-vt.net\/en\/about-us\/#history\">our history<\/a>).<\/p>\n<div class=\"svt-ptiles\">\n<div class=\"svt-ptile\"><i class=\"fa fa-wrench\" aria-hidden=\"true\"><\/i><strong>Maintenance at our factory<\/strong><span>You send us the unit, we service it in Weyhe and ship it back.<\/span><\/div>\n<div class=\"svt-ptile\"><i class=\"fa fa-clock-o\" aria-hidden=\"true\"><\/i><strong>From 5 working days<\/strong><span>Usually 2\u20133 weeks; with advance planning and no major damage from 5 working days.<\/span><\/div>\n<div class=\"svt-ptile\"><i class=\"fa fa-bolt\" aria-hidden=\"true\"><\/i><strong>Electric motor<\/strong><span>On request, we also overhaul the drive motor.<\/span><\/div>\n<div class=\"svt-ptile\"><i class=\"fa fa-circle-o-notch\" aria-hidden=\"true\"><\/i><strong>Mechanical seals<\/strong><span>Replacement, refurbishment, spare parts and barrier fluid systems.<\/span><\/div>\n<\/div>\n<div class=\"svt-split\">\n<div>\n<h2>Maintenance at our factory<\/h2>\n<p>Send us your homogeniser unit. At our factory in Weyhe we inspect, service and overhaul it and prepare it for its next use. On request, we also overhaul the electric motor.<\/p>\n<p>The usual lead time is about 2\u20133 weeks. With advance planning, maintenance can be completed in as little as 5 working days \u2013 provided there is no major damage. This lets you plan your plant downtime reliably.<\/p>\n<\/div>\n<div><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/01\/DSC_9461-768x511.jpg\" width=\"768\" height=\"511\" alt=\"Homogeniser after maintenance at the SEEFRIED factory in Weyhe, Germany\" loading=\"lazy\"><\/div>\n<\/div>\n<h2>How maintenance at our factory works<\/h2>\n<ol>\n<li><strong>Schedule:<\/strong> we agree on the timing so maintenance fits your production window.<\/li>\n<li><strong>Shipping:<\/strong> you send the homogeniser unit to Weyhe.<\/li>\n<li><strong>Inspection and maintenance:<\/strong> we inspect the unit and carry out maintenance and repairs, including the mechanical seal.<\/li>\n<li><strong>Optional motor overhaul:<\/strong> on request, we also overhaul the electric motor.<\/li>\n<li><strong>Return:<\/strong> the unit is shipped back to you ready for use.<\/li>\n<\/ol>\n<h2>On-site maintenance<\/h2>\n<p>If removal or shipping is not practical, we come to you and maintain homogenisers and machines directly at the plant \u2013 in Germany and worldwide. We schedule the visit around your production.<\/p>\n<h2>Mechanical seal service<\/h2>\n<p>The mechanical seal is one of the most important wear parts of a homogeniser: it seals the shaft against the product chamber. Replacing it in time protects your product and prevents consequential damage to shaft and bearings.<\/p>\n<div class=\"svt-kgrid svt-kgrid-2\">\n<div class=\"svt-kcard\"><i class=\"fa fa-exchange\" aria-hidden=\"true\"><\/i><\/p>\n<h3>Replacement &amp; installation<\/h3>\n<ul class=\"svt-klist\">\n<li>Removal of the worn mechanical seal<\/li>\n<li>Installation and adjustment of the new seal<\/li>\n<li>At our factory or on site<\/li>\n<\/ul>\n<\/div>\n<div class=\"svt-kcard\"><i class=\"fa fa-refresh\" aria-hidden=\"true\"><\/i><\/p>\n<h3>Refurbishment &amp; repair<\/h3>\n<ul class=\"svt-klist\">\n<li>Inspection of used mechanical seals<\/li>\n<li>Refurbishment where technically sensible<\/li>\n<li>Economical alternative to a new part<\/li>\n<\/ul>\n<\/div>\n<div class=\"svt-kcard\"><i class=\"fa fa-cubes\" aria-hidden=\"true\"><\/i><\/p>\n<h3>Spare parts<\/h3>\n<ul class=\"svt-klist\">\n<li>Mechanical seals and wear parts<\/li>\n<li>Matched to your homogeniser<\/li>\n<li>Fast procurement<\/li>\n<\/ul>\n<\/div>\n<div class=\"svt-kcard\"><i class=\"fa fa-tint\" aria-hidden=\"true\"><\/i><\/p>\n<h3>Barrier fluid system<\/h3>\n<ul class=\"svt-klist\">\n<li>Inspection and repair<\/li>\n<li>Cooling and monitoring<\/li>\n<li>Matched to the mechanical seal<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h3>Replace the shaft at the same time<\/h3>\n<p>If the mechanical seal leaks, the homogeniser is dismantled and a new seal is fitted. The shaft should be replaced at the same time: with age, the shaft can become unbalanced, and it wears in the area of the seal. On an old shaft, the new seal would have a much shorter service life.<\/p>\n<p>For homogenisers from Vakumix and NETZSCH Vakumix we supply compatible mechanical seals in all standard sizes (shaft \u00d8 20 to 45 mm) as well as shafts: <a href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seals-vakumix\/\">Mechanical seals for Vakumix homogenisers<\/a><\/p>\n<h3>Typical signs of a worn mechanical seal<\/h3>\n<ul>\n<li>Leakage at the shaft or around the homogeniser<\/li>\n<li>Unusual consumption or discolouration of the barrier fluid<\/li>\n<li>Noticeable noise or rising temperature at the seal<\/li>\n<li>Long running time since the last seal change<\/li>\n<\/ul>\n<p>More services: <a href=\"https:\/\/www.s-vt.net\/en\/repair-troubleshooting\/\">Repair &amp; troubleshooting<\/a> \u00b7 <a href=\"https:\/\/www.s-vt.net\/en\/modernisation-retrofit\/\">Modernisation &amp; retrofit<\/a> \u00b7 <a href=\"https:\/\/www.s-vt.net\/en\/service\/\">all services<\/a><\/p>\n<div class=\"svt-pcta svt-pcta-m\">\n<div class=\"svt-pcta-tx\"><strong>Plan maintenance?<\/strong> Tell us the type and year of your homogeniser or plant \u2013 we will agree on dates and procedure with you.<\/div>\n<div class=\"svt-pcta-btns\"><a class=\"svt-btn svt-btn-primary\" href=\"https:\/\/www.s-vt.net\/en\/service-request\/\">Send service request<\/a><a class=\"svt-btn svt-btn-ghost\" href=\"tel:+494203789492\">Call: +49 4203 789492<\/a><\/div>\n<\/div>\n<h3>Mechanical seals by shaft \u00d8<\/h3>\n<div class=\"svt-sgrid\"><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seal-vakumix-20-mm\/\"><span>Mechanical seal 20 mm<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seal-vakumix-24-mm\/\"><span>Mechanical seal 24 mm<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seal-vakumix-30-mm\/\"><span>Mechanical seal 30 mm<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seal-vakumix-35-mm\/\"><span>Mechanical seal 35 mm<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seal-vakumix-45-mm\/\"><span>Mechanical seal 45 mm<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><a class=\"svt-scard\" href=\"https:\/\/www.s-vt.net\/en\/double-acting-mechanical-seals-vakumix\/\"><span>All sizes &amp; prices<\/span><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><\/a><\/div>\n<h2 id=\"barrier-fluid\">Barrier fluid system: 3 checks before every start<\/h2>\n<p>The double-acting mechanical seal of a homogeniser works with a barrier fluid system. Check it before every machine start and at every handover from one machine operator to the next:<\/p>\n<div style=\"background:#f4f6f8;border-left:4px solid #1a9bc7;border-radius:6px;padding:16px 20px;margin:8px 0 28px\">\n<ol style=\"margin:0;padding-left:20px\">\n<li><strong>Pressure:<\/strong> Is the pressure within the range specified by the manufacturer? Around 3 bar at 20 \u00b0C is typical. If the pressure drops, the system is leaking.<\/li>\n<li><strong>Level:<\/strong> Is there enough barrier fluid, or has the plant lost barrier fluid?<\/li>\n<li><strong>Colour:<\/strong> Is the barrier fluid unchanged? Discolouration indicates that product has entered the barrier fluid system.<\/li>\n<\/ol>\n<\/div>\n<p>Automatic monitoring systems are available for pressure and level and warn you of deviations. Depending on the application, barrier fluid systems are additionally cooled, circulated by a pump or can be sterilised. If one of the three checks shows something unusual, contact us: we inspect the system, replace leaking mechanical seals and advise you on suitable monitoring.<\/p>\n<h2>Frequently asked questions<\/h2>\n<h3>How long does homogeniser maintenance take?<\/h3>\n<p>Usually about 2\u20133 weeks at our factory. With advance planning and no major damage, from 5 working days.<\/p>\n<h3>Is the electric motor overhauled too?<\/h3>\n<p>On request, yes. Overhauling the electric motor is an option during maintenance at our factory.<\/p>\n<h3>When should a mechanical seal be replaced?<\/h3>\n<p>At the latest when there is leakage, unusual barrier fluid consumption or noise. A planned replacement during maintenance, before consequential damage occurs, is better.<\/p>\n<h3>Can a used mechanical seal be refurbished?<\/h3>\n<p>Often, yes. We inspect the seal and refurbish it where technically sensible. Otherwise we supply and fit a spare part.<\/p>\n<p class=\"svt-stand\" style=\"font-size:13px;color:#6b7378;margin:24px 0 8px\">Last updated: October 2026<\/p>\n<p class=\"svt-note\">All trademarks mentioned, in particular Vakumix and NETZSCH, are the property of their respective owners and are used solely to identify the products offered. This is not an offer from the manufacturer. SEEFRIED Verfahrenstechnik is an independent supplier and is not affiliated with these manufacturers; our spare parts are compatible parts, not original parts.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Regular maintenance keeps your mixing and homogenising plant available and prevents unplanned downtime. We service homogenisers at our factory in Weyhe \u2013 usually within 2\u20133 weeks, from 5 working days with advance planning \u2013 or on site at your plant. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":"","footnotes":""},"class_list":["post-6152","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Homogeniser Maintenance &amp; Mechanical Seals | SEEFRIED<\/title>\n<meta name=\"description\" content=\"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.\" \/>\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.s-vt.net\/en\/maintenance-servicing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Homogeniser Maintenance &amp; Mechanical Seals | SEEFRIED\" \/>\n<meta property=\"og:description\" content=\"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/\" \/>\n<meta property=\"og:site_name\" content=\"SEEFRIED Verfahrenstechnik GmbH\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-04T10:09:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.s-vt.net\/wp-content\/uploads\/2026\/10\/og-service-homogenisiermischer.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\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:\/\/s-vt.net\/wp-content\/uploads\/2026\/10\/og-service-homogenisiermischer.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.s-vt.net\\\/en\\\/maintenance-servicing\\\/\",\"url\":\"https:\\\/\\\/www.s-vt.net\\\/en\\\/maintenance-servicing\\\/\",\"name\":\"Homogeniser Maintenance & Mechanical Seals | SEEFRIED\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.s-vt.net\\\/#website\"},\"datePublished\":\"2026-10-28T16:56:31+00:00\",\"dateModified\":\"2026-11-04T10:09:06+00:00\",\"description\":\"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.s-vt.net\\\/en\\\/maintenance-servicing\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.s-vt.net\\\/en\\\/maintenance-servicing\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.s-vt.net\\\/en\\\/maintenance-servicing\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/www.s-vt.net\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Maintenance &#038; Servicing\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.s-vt.net\\\/#website\",\"url\":\"https:\\\/\\\/www.s-vt.net\\\/\",\"name\":\"SEEFRIED Verfahrenstechnik GmbH\",\"description\":\"Mixing and process engineering from experts\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.s-vt.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Homogeniser Maintenance & Mechanical Seals | SEEFRIED","description":"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/","og_locale":"en_US","og_type":"article","og_title":"Homogeniser Maintenance & Mechanical Seals | SEEFRIED","og_description":"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.","og_url":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/","og_site_name":"SEEFRIED Verfahrenstechnik GmbH","article_modified_time":"2026-11-04T10:09:06+00:00","og_image":[{"width":1200,"height":630,"url":"https:\/\/www.s-vt.net\/wp-content\/uploads\/2026\/10\/og-service-homogenisiermischer.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_image":"https:\/\/s-vt.net\/wp-content\/uploads\/2026\/10\/og-service-homogenisiermischer.jpg","twitter_misc":{"Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/","url":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/","name":"Homogeniser Maintenance & Mechanical Seals | SEEFRIED","isPartOf":{"@id":"https:\/\/www.s-vt.net\/#website"},"datePublished":"2026-10-28T16:56:31+00:00","dateModified":"2026-11-04T10:09:06+00:00","description":"Homogeniser maintenance at our factory (usually 2\u20133 weeks, from 5 working days with planning) or on site \u2013 incl. mechanical seals.","breadcrumb":{"@id":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.s-vt.net\/en\/maintenance-servicing\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.s-vt.net\/en\/maintenance-servicing\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/www.s-vt.net\/en\/"},{"@type":"ListItem","position":2,"name":"Maintenance &#038; Servicing"}]},{"@type":"WebSite","@id":"https:\/\/www.s-vt.net\/#website","url":"https:\/\/www.s-vt.net\/","name":"SEEFRIED Verfahrenstechnik GmbH","description":"Mixing and process engineering from experts","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.s-vt.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/pages\/6152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/comments?post=6152"}],"version-history":[{"count":10,"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/pages\/6152\/revisions"}],"predecessor-version":[{"id":6601,"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/pages\/6152\/revisions\/6601"}],"wp:attachment":[{"href":"https:\/\/s-vt.net\/en\/wp-json\/wp\/v2\/media?parent=6152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}