{"id":108671,"date":"2025-11-26T09:36:33","date_gmt":"2025-11-26T09:36:33","guid":{"rendered":"https:\/\/www.simscale.com\/?page_id=108671"},"modified":"2025-12-05T09:32:36","modified_gmt":"2025-12-05T09:32:36","slug":"kemper-driving-progress-in-drinking-water-hygiene","status":"publish","type":"page","link":"https:\/\/www.simscale.com\/customers\/kemper-driving-progress-in-drinking-water-hygiene\/","title":{"rendered":"Kemper &#8211; Driving Progress in Drinking Water Hygiene"},"content":{"rendered":"\n<div>\n<style>\np {\n    font-size: 18px ;\n    line-height: 35px;\n    margin-bottom: 1.5em;\n}\nh2 { \n    font-size: 44px !important;\n}\n<\/style>\n<\/div>\n\n\n\n<div>\n<div class=\"gb-element-b1904b06\">\n<div class=\"gb-element-31350e07\">\n<div class=\"gb-element-51d29773\"><div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.simscale.com\/\">Home<\/a><\/span> \u00bb <span><a href=\"https:\/\/www.simscale.com\/customers\/\">Customers<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Kemper &#8211; Driving Progress in Drinking Water Hygiene<\/span><\/span><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-a1ba63a4\" style=\"--inline-bg-image: url(https:\/\/frontend-assets.simscale.com\/media\/2025\/10\/product-background-svg.svg)\">\n<div class=\"gb-element-3e3f3809\">\n<div class=\"gb-element-b775d3a3\">\n<img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"100\" class=\"gb-media-c7dd2f5b\" alt=\"Kemper Logo\" title=\"Kemper Logo\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kemper-Logo.webp\"\/>\n\n\n\n<h1 class=\"gb-text gb-text-58a14c4d\">Kemper: Driving Progress in Drinking Water Hygiene with Cloud-Native Simulation<\/h1>\n<\/div>\n\n\n\n<div class=\"gb-element-44504251\">\n<div class=\"gb-element-83c9cf85\">\n<div class=\"gb-element-af7fb11d\">\n<div>\n<img loading=\"lazy\" decoding=\"async\" width=\"89\" height=\"68\" class=\"gb-media-8e0dee39\" alt=\"Increased Innovation\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/09\/respond-faster-icon.svg\" title=\"increased-innovation\"\/>\n<\/div>\n\n\n\n<div>\n<span class=\"gb-text gb-text-03dd69d3\">Design verification reduced from 3 weeks to 1 day<\/span>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-2bde3ea8\">\n<div class=\"gb-element-cd6ddadb\">\n<div>\n<img loading=\"lazy\" decoding=\"async\" width=\"68\" height=\"67\" class=\"gb-media-ed2ff7ff\" alt=\"Free Up Experts Icon\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/09\/free-up-experts-icon.svg\" title=\"free-up-experts-icon\"\/>\n<\/div>\n\n\n\n<div>\n<span class=\"gb-text gb-text-84a83a96\">Made simulation available to non-experts, eliminating resource bottlenecks<\/span>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-56b0347a\">\n<div class=\"gb-element-1235f9fb\">\n<div class=\"gb-element-74368187\">\n<div class=\"gb-element-4f23639b\">\n<div class=\"gb-element-067668ed\">\n<h2 class=\"gb-text gb-text-96e8d1fd\">Challenges<\/h2>\n\n\n\n<li class=\"gb-text gb-text-6ba90b7e\">Difficulty accurately modeling nearly-closed valves with small gaps using legacy CAD-embedded CFD solution.<\/li>\n\n\n\n<li class=\"gb-text gb-text-ff9133e3\">Simulation was tied to a single, dedicated workstation, limiting access and preventing parallel work.<\/li>\n\n\n\n<li class=\"gb-text gb-text-9a1e1f3f\">Engineers spent hours manually &#8220;cleaning&#8221; CAD models to make them watertight for the solver.<\/li>\n\n\n\n<li class=\"gb-text gb-text-b1f80ed0\">Slow design loops with physical prototyping and testing taking up to three weeks per design change.<\/li>\n<\/div>\n\n\n\n<img decoding=\"async\" class=\"gb-media-463eb495\" alt=\"Kemper Challenges\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/11\/Kemper-Challenges.webp\" title=\"Kemper Challenges\"\/>\n<\/div>\n\n\n\n<div class=\"gb-element-c52e228f\">\n<div class=\"gb-element-b61859d2\">\n<h2 class=\"gb-text gb-text-c2b0a58f\">Results<\/h2>\n\n\n\n<li class=\"gb-text gb-text-258d3ddc\">SimScale accurately resolved the &#8220;small gap&#8221; flow, near-perfectly matching physical lab measurements.<\/li>\n\n\n\n<li class=\"gb-text gb-text-6c0702ac\">Browser-based access eliminated hardware dependencies, allowing engineers to simulate from any laptop.<\/li>\n\n\n\n<li class=\"gb-text gb-text-6814c2ae\">SimScale handled complex valve assemblies directly, removing the need for extensive CAD defeaturing.<\/li>\n\n\n\n<li class=\"gb-text gb-text-a2f7e26f\">Design loop reduced from 3 weeks to 1 day using robust and reliable CFD simulation.<\/li>\n<\/div>\n\n\n\n<img loading=\"lazy\" decoding=\"async\" width=\"440\" height=\"440\" class=\"gb-media-d60be114\" alt=\"Kemper Results\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kemper-Results-copy.webp\" title=\"Kemper-Results copy\" srcset=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kemper-Results-copy.webp 440w, https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kemper-Results-copy-300x300.webp 300w, https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kemper-Results-copy-150x150.webp 150w\" sizes=\"auto, (max-width: 440px) 100vw, 440px\" \/>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-3bbef0ea\">\n<div class=\"gb-element-394e24b3\">\n<h2 class=\"gb-text\">About Kemper<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Founded in 1864 in Olpe, Germany, <a href=\"https:\/\/www.kemper-group.com\/de-de\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kemper<\/a> is a family-run market leader driven by deep technical expertise. The company philosophy is \u201cDriving Progress\u201d, as evidenced by their evolution from a metal foundry into a global player with sites from the UK to Singapore. Kemper\u2019s Building Technology division applies the same approach to the design of valves and sanitary water systems, in which water must be kept flowing to prevent pathogen growth and maintain water safety.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kai G\u00fcnther is a Mechanical Engineer in the Building Technology division. With experience in simulation from previous roles, Kai is responsible for assessing the hydraulic efficiency of design candidates to support the new product development process. The company uses simulation with SimScale to virtually develop and test prototypes to accelerate design cycles and reduce spend on 3D-printed physical prototypes.<\/p>\n\n\n\n<h2 class=\"gb-text\">Why SimScale?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Simulation is essential to Kemper&#8217;s development process, allowing the team to compare different design geometries early in the cycle. The goal is to identify performance trends\u2014determining if one design offers better flow characteristics than another\u2014before committing to physical manufacturing. While Kemper has internal resources for 3D printing, the physical verification process is costly and slow. Producing a single prototype involves printing the component in stainless steel and then machining the sealing surfaces, often requiring the fabrication of custom clamping fixtures. This physical cycle takes up to three weeks per iteration, creating a significant bottleneck.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For Kai G\u00fcnther, a mechanical engineer at Kemper, the transition to SimScale was driven by a need to democratize this simulation capability. Previously, the department relied on a CAD-embedded solution, but the workflow was restrictive. The software required a dedicated, heavy-duty workstation that tethered engineers to a single desk and locked up resources during calculations. &#8220;We searched for something that was easy to learn for colleagues who are not experienced with CFD simulation,&#8221; Kai explains.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beyond accessibility, the legacy tool struggled with the team\u2019s &#8220;dirty&#8221; CAD geometry. Preparing a model for simulation required Kai to spend up to an hour manually closing gaps and fixing sealing surfaces to create a watertight fluid volume. The team needed a solution that was not only browser-based and scalable but robust enough to handle complex assemblies without hours of pre-processing. After benchmarking several solutions, SimScale emerged as the clear winner due to its user-friendly interface and the power of its solvers.<\/p>\n\n\n\n<div class=\"gb-element-e747b877\">\n<div class=\"gb-element-ecd0b6a0\">\n<div class=\"gb-element-40c01d5c\">\n<img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" class=\"gb-media-0a7c01bb\" alt=\"Kai G\u00fcnther\" title=\"Kai Gu\u0308nther\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kai-Gu\u0308nther.webp\" srcset=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kai-Gu\u0308nther.webp 200w, https:\/\/frontend-assets.simscale.com\/media\/2025\/12\/Kai-Gu\u0308nther-150x150.webp 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>\n<\/div>\n\n\n\n<div>\n<p class=\"gb-text gb-text-99881929\">\u201cWe estimated that physical prototyping takes at least two or more weeks, so an iteration in SimScale is a lot faster\u2026 a design comparison takes about one day.\u201d<\/p>\n\n\n\n<p class=\"gb-text gb-text-37a06ae3\">Kai G\u00fcnther<\/p>\n\n\n\n<p class=\"gb-text gb-text-a43e3607\">Mechanical Engineer, Kemper<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"gb-text\">Case Study: The ETA-THERM Valve<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The capabilities of the new platform were tested on the <a href=\"https:\/\/www.kemper-group.com\/de-de\/gebaeudetechnik\/produktkatalog\/produktkategorien\/regulierarmaturen\/automatische-regulierventile-eta-therm\/\" target=\"_blank\" rel=\"noreferrer noopener\">ETA-THERM<\/a>, a thermostatic balancing valve designed to regulate hot water circulation systems. The valve operates dynamically, adjusting its flow resistance based on water temperature to ensure that hot water is available at every tap in a building immediately.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The engineering challenge lay in the valve\u2019s &#8220;regulated&#8221; position. In this state, the valve is nearly closed, leaving a very small gap for water to pass through. &#8220;We always had problems modeling that condition using our CAD-embedded tool, the results were quite some way off&#8221; Kai notes regarding their previous software. The legacy solver could not accurately resolve the fluid dynamics in these tiny spaces, often producing unrealistic values or failing to converge entirely.<\/p>\n\n\n\n<div class=\"gb-element-53690858\">\n<div class=\"gb-element-39b41f1c\">\n<figure class=\"gb-element-6a689ba2\">\n<img decoding=\"async\" class=\"gb-media-c63552a7\" alt=\"Flow through ETA-THERM in the almost closed position\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/11\/flow_through_eta_therm_in_the_almost_closed_position_1x.webp\" title=\"flow_through_eta_therm_in_the_almost_closed_position_1x\"\/>\n\n\n\n<figcaption class=\"gb-text gb-text-d2321120\">Flow through ETA-THERM in the almost closed position<\/figcaption>\n<\/figure>\n\n\n\n<figure class=\"gb-element-110ce8f6\">\n<img decoding=\"async\" class=\"gb-media-2d9cbfca\" alt=\"Flow through ETA-THERM in the fully open position showing\u00a0\" src=\"https:\/\/frontend-assets.simscale.com\/media\/2025\/11\/flow_through_eta_therm_in_the_fully_open_position_showing__1x.webp\" title=\"flow_through_eta_therm_in_the_fully_open_position_showing__1x\"\/>\n\n\n\n<figcaption class=\"gb-text gb-text-841dde47\">Flow through ETA-THERM in the fully open position&nbsp;<\/figcaption>\n<\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Using SimScale, Kai was able to simulate the flow through these sub-millimeter gaps without needing to spend time manually redesigning the CAD model to be watertight. \u201cWe initially established the accuracy of SimScale by running a blind benchmark against physical lab data, and the results almost perfectly matched\u201d, Kai recalls. With a reliable simulation process in place, the team could progress in their aim to eliminate the expensive physical prototyping that has previously limited their engineering velocity: \u201cThis built confidence in the workflow and the Subsonic Analysis in SimScale, so we can now lean into to simulation more heavily\u201d.<\/p>\n\n\n\n<h2 class=\"gb-text\">Results and Future Outlook<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The adoption of SimScale has collapsed Kemper\u2019s design iteration time from three weeks (for 3D printing and machining) to just one day. Looking forward, the team plans to expand their use of simulation beyond simple performance verification. Plans are in place to use SimScale for optimizing the integration of vortex and temperature sensors within valve bodies, ensuring that measurement instruments do not disrupt the hydraulic balance. By building a digital library of these simulations, Kemper is also securing institutional knowledge, ensuring that the engineering reasoning behind every design is preserved for future generations.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-f5bbb12e\">\n<div class=\"gb-element-5864c4e7\">\n<h2 class=\"gb-text gb-text-aea88abd\">See more success stories<\/h2>\n\n\n\n<div class=\"gb-element-e9de5332\">\n<div class=\"gb-element-2b7fc583\">\n<div class=\"gb-query-106e68be\"><div class=\"gb-looper-0f37d9ea\">\n<div class=\"gb-loop-item gb-loop-item-16c8c182 post-101410 page type-page status-publish has-post-thumbnail hentry\">\n<div class=\"gb-element-c17136d1\" style=\"--inline-bg-image: url(https:\/\/frontend-assets.simscale.com\/media\/2025\/03\/202503-cobalt-feature.webp)\"><\/div>\n\n\n\n<div class=\"gb-element-7304e23b\">\n<h3 class=\"gb-text gb-text-51af4ee5\"><a href=\"https:\/\/www.simscale.com\/customers\/cobalt-product-design-for-thermal-management\/\">Product Design for Thermal Management\u00a0<\/a><\/h3>\n<\/div>\n\n\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-6adf9a09\">\n<div class=\"gb-query-1cb0e871\"><div class=\"gb-looper-85b9d10e\">\n<div class=\"gb-loop-item gb-loop-item-885dbe25 post-84109 page type-page status-publish has-post-thumbnail hentry\">\n<div class=\"gb-element-23365c0c\" style=\"--inline-bg-image: url(https:\/\/frontend-assets.simscale.com\/media\/2023\/11\/20231114-cs-tecnalia-Featured.jpg)\"><\/div>\n\n\n\n<div class=\"gb-element-59ea556b\">\n<h3 class=\"gb-text gb-text-989851e3\"><a href=\"https:\/\/www.simscale.com\/customers\/tecnalia-leverages-cfd-cloud-simulation\/\">TECNALIA Leverages CFD and Cloud Simulation for UAV Design &#038; Development<\/a><\/h3>\n<\/div>\n\n\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-d4bc636e\">\n<div class=\"gb-query-8e105707\"><div class=\"gb-looper-c4d5339b\">\n<div class=\"gb-loop-item gb-loop-item-918bd619 post-87527 page type-page status-publish has-post-thumbnail hentry\">\n<div class=\"gb-element-8869c43b\" style=\"--inline-bg-image: url(https:\/\/frontend-assets.simscale.com\/media\/2024\/02\/20240201-cs-metraflex-1107x768-featured.jpg)\"><\/div>\n\n\n\n<div class=\"gb-element-ae9c1ef8\">\n<h3 class=\"gb-text gb-text-a517e5f1\"><a href=\"https:\/\/www.simscale.com\/customers\/metraflex-reengineering-valves-higher-efficiency\/\">Metraflex: Reengineering Valves For Higher Efficiency<\/a><\/h3>\n<\/div>\n\n\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-element-d1d43188\">\n<div class=\"gb-element-4a89bab3\">\n<p class=\"gb-text gb-text-ed944d06 p\">Set up your own cloud-native simulation via the web in minutes by creating an account on the SimScale platform. No installation, special hardware, or credit card is required.<\/p>\n\n\n\n<div class=\"gb-element-ac7061bc\">\n<div>\n<a class=\"gb-text gb-text-830cabc9\" href=\"\/signup\/\">Start Simulating<\/a>\n<\/div>\n\n\n\n<div class=\"gb-element-3a131f83\">\n<a class=\"gb-text gb-text-4b971913\" href=\"\/request-demo\/\">Request Demo<\/a>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kemper: Driving Progress in Drinking Water Hygiene with Cloud-Native Simulation Design verification reduced from 3 weeks to 1...","protected":false},"author":195,"featured_media":108667,"parent":8006,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/template-individual-customer-page2.php","meta":{"_acf_changed":true,"_crdt_document":"","inline_featured_image":false,"footnotes":""},"class_list":["post-108671","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/pages\/108671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/users\/195"}],"replies":[{"embeddable":true,"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/comments?post=108671"}],"version-history":[{"count":0,"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/pages\/108671\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/pages\/8006"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/media\/108667"}],"wp:attachment":[{"href":"https:\/\/www.simscale.com\/wp-json\/wp\/v2\/media?parent=108671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}