{"id":11276,"date":"2021-02-03T11:33:03","date_gmt":"2021-02-03T10:33:03","guid":{"rendered":"https:\/\/www.ness.de\/faq-ness-nald250-nald250i\/"},"modified":"2021-02-04T10:57:10","modified_gmt":"2021-02-04T09:57:10","slug":"faq-ness-nald250-nald250i","status":"publish","type":"page","link":"https:\/\/ness.de\/en\/faq-ness-nald250-nald250i\/","title":{"rendered":"FAQ &#8211; NESS NALD250 \/ NALD250i"},"content":{"rendered":"<section  class='av_textblock_section av-k6hy212x-31801fea5f76cd588a23d444914dd83a '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>FAQ &#8211; NESS NALD250 \/ NALD250i<\/h1>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k6j4a5xg-229e00af905c75b6a86fa90bae7ff71c\">\n#top .hr.hr-invisible.av-k6j4a5xg-229e00af905c75b6a86fa90bae7ff71c{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-k6j4a5xg-229e00af905c75b6a86fa90bae7ff71c hr-invisible  avia-builder-el-1  el_after_av_textblock  el_before_av_one_half '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class='flex_column_table av-54u0i9-e6d1e253a32c7ecc0d07c178db1541cf sc-av_one_half av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-54u0i9-e6d1e253a32c7ecc0d07c178db1541cf\">\n.flex_column.av-54u0i9-e6d1e253a32c7ecc0d07c178db1541cf{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-54u0i9-e6d1e253a32c7ecc0d07c178db1541cf av_one_half  avia-builder-el-2  el_after_av_hr  el_before_av_one_half  first flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  '     ><section  class='av_textblock_section av-k6hyk1gg-dc88326d5053ea0419bc5045030ed88d '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h4>Active light ends removal system NALD250 \/ NALD250i for fast and flexible integration<\/h4>\n<p>In this FAQ-area, you can read some general questions and answers around the NALD250 \/ NALD250i of the NESS light ends removal systems, which advantage you can take of it and what you generally should consider for integration. In addition, it has to do with the infrastructure that should be given for successful operation.<\/p>\n<\/div><\/section><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4gybfl-5aaec96b763758038db8e35ada40ab7a\">\n.flex_column.av-4gybfl-5aaec96b763758038db8e35ada40ab7a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4gybfl-5aaec96b763758038db8e35ada40ab7a av_one_half  avia-builder-el-4  el_after_av_one_half  el_before_av_three_fourth  flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k6hy3m9e-65b00655dc70b7e0de58c45cd5112a23\">\n.avia-image-container.av-k6hy3m9e-65b00655dc70b7e0de58c45cd5112a23 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-k6hy3m9e-65b00655dc70b7e0de58c45cd5112a23 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-k6hy3m9e-65b00655dc70b7e0de58c45cd5112a23 av-styling- av-hover-grow av-hide-overflow avia-align-center  avia-builder-el-5  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-8882 avia-img-lazy-loading-not-8882 avia_image ' src=\"https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-light-ends-removal-system-845x321.jpg\" alt='' title='slider-light-ends-removal-system'  height=\"321\" width=\"845\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-25z4up-c9533f58a0a95898e8b3a37526181658\">\n.flex_column.av-25z4up-c9533f58a0a95898e8b3a37526181658{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-25z4up-c9533f58a0a95898e8b3a37526181658 av_three_fourth  avia-builder-el-6  el_after_av_one_half  el_before_av_one_full  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-k6hxj2js-2ad3539020a3a8e43a65b84b79f93042 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" >            <div class=\"qae-faqs-container qae-faqs-list-container\">\n\t\t\t\t\t\t\t<ul class=\"qe-faqs-filters-container\">\n\t\t\t\t<li class=\"active\"><a class=\"qe-faqs-filter all-faqs\" href=\"#\" data-filter=\"*\">All<\/a><\/li>\n\t\t\t\t<li><a class=\"qe-faqs-filter\" href=\"#ness-light-ends-removal-system\" data-filter=\".ness-light-ends-removal-system\">NESS Light-ends removal system<\/a><\/li><li><a class=\"qe-faqs-filter\" href=\"#nald250-nald250i-en\" data-filter=\".nald250-nald250i-en\">NESS NALD250 \/ NALD250i<\/a><\/li>\t\t\t<\/ul>\n\t\t\t<ol class=\"qe-faqs-index-list\"><div id=\"qe-faqs-index\" class=\"qe-faqs-index\">\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11197\">What does the NESS Light-ends removal system do?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11198\">How do I integrate the NESS Light-ends removal system in my plant?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11199\">Are there different light-ends removal systems available? And if yes, do we have to consider something?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11200\">Do I need additional infrastructure for the operation of the light-ends removal system?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11201\">For operation, additional nitrogen and cooling water are required. What do I have to consider and how high is consumption?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11202\">The recommended inlet temperature in the NESS Light-ends removal systems is 250 \u00b0C. What happens, if this is below that?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11203\">Is humidity removed from the thermal oil in addition to the light-ends?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"ness-light-ends-removal-system\">\n\t\t\t\t\t\t<a href=\"#qaef-11204\">What happens with the separated light-ends and what do we have to observe?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"nald250-nald250i-en\">\n\t\t\t\t\t\t<a href=\"#qaef-11205\">What is the difference between the active light-ends removal systems NALD250 and NALD250i?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"nald250-nald250i-en\">\n\t\t\t\t\t\t<a href=\"#qaef-11207\">What do I have to consider in the place of installation of the NALD250 \/ NALD250i? Which conditions must be met?<\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t<\/div><\/ol>\t\t<div id=\"qaef-11197\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> What does the NESS Light-ends removal system do?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>The NESS Light-ends removal system is a product in the NESSessities concept which constantly increases safety, availability, durability and efficiency in thermal oil systems. <strong>One of the 3 most important factors<\/strong> for a good quality is a <strong>stable flashpoint<\/strong>. The NESS Light-ends removal system helps you ensuring this permanently.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/ness.de\/wp-content\/uploads\/2019\/09\/NESSessitiesbrochure_V04_01_EN-lowres.pdf\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/factor-flashpoint.jpg\" alt=\"\" class=\"wp-image-9901\" width=\"463\" height=\"216\" srcset=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/factor-flashpoint.jpg 764w, https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/factor-flashpoint-300x140.jpg 300w, https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/factor-flashpoint-705x329.jpg 705w, https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/factor-flashpoint-450x210.jpg 450w\" sizes=\"auto, (max-width: 463px) 100vw, 463px\" \/><\/a><figcaption>Besides acid figure and Conradson value, <br \/>the flashpoint is an important factor for good quality<\/figcaption><\/figure>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11198\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> How do I integrate the NESS Light-ends removal system in my plant?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>No problem at all! Like all NESSessities, also the NESS Light-ends removal system is designed as an <strong>individual module<\/strong>. Existing processes are not influenced. because the light-ends removal takes place in the <strong>bypass flow<\/strong>. This concept allows the relatively easy retrofitting also for already existing systems.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/Bipass.jpg\" alt=\"\" class=\"wp-image-9904\" width=\"333\" height=\"220\" srcset=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/Bipass.jpg 364w, https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/Bipass-300x199.jpg 300w\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" \/><figcaption>NESSessities work independently<br \/>in the bypass flow of the system<\/figcaption><\/figure>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11199\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> Are there different light-ends removal systems available? And if yes, do we have to consider something?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>Basically, there are two types of systems for light ends removal at NESS: <strong>a passive system and an active system<\/strong>.  <\/p>\n\n\n\n<p>The passive light ends removal system works <strong>with gravity<\/strong>. That means that it must be installed at least 2m above the highest point of the system (mostly the expansion tank). This often requires an additional steel structure which would preferably seem the thing to do when a <strong>new plant<\/strong> is planned and not for retrofitting. The solution is feasible for systems with up to 110,000 litres of thermal oil.<\/p>\n\n\n\n<p>The active light ends removal system is very flexible because it is equipped with <strong>its own pump<\/strong> pump and a frequency converter. Therefore, among others, its implementation in <strong>existing systems<\/strong> can be planned better and it can also be used optimally for systems with more than 110,000 litres of thermal oil.<\/p>\n\n\n\n<p>What product solutions are available for your system <a href=\"https:\/\/ness.de\/wp-content\/uploads\/2018\/11\/NESS_NALD_OVERVIEW_V01_02_EN-1.pdf\">you will read here<\/a><\/p>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11200\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> Do I need additional infrastructure for the operation of the light-ends removal system?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>Besides a certain <strong>inlet pressure<\/strong> of the thermal oil, <strong>nitrogen, cooling water and control air<\/strong> will be required in addition. Due to its own pump and control unit, the active light ends removal system certainly needs the respective <strong>power supply<\/strong>. <\/p>\n\n\n\n<p>Please find <a href=\"https:\/\/ness.de\/wp-content\/uploads\/2018\/11\/NESS_NALD_OVERVIEW_V01_02_EN-1.pdf\">more details here<\/a>.<\/p>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11201\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> For operation, additional nitrogen and cooling water are required. What do I have to consider and how high is consumption?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p><strong>Nitrogen<\/strong> is always required for the operation of the light-ends removal system. This is required for the <strong>intertisation and the generation of overpressure<\/strong> within the system. Consumption depends on the quantity of light-ends in the oil. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/ness.de\/en\/nitrogen-generator\/\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-1030x328.jpg\" alt=\"\" class=\"wp-image-8898\" width=\"550\" height=\"175\" srcset=\"https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-1030x328.jpg 1030w, https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-300x95.jpg 300w, https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-768x244.jpg 768w, https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-1500x477.jpg 1500w, https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-705x224.jpg 705w, https:\/\/ness.de\/wp-content\/uploads\/2019\/10\/slider-ness-nitrogen-generator-450x143.jpg 450w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Nitrogen cylinder (50 litres \/ 200 bar)<\/td><td><\/td><\/tr><tr><td>With fresh oil<\/td><td>approx. 6 days<\/td><\/tr><tr><td>With used oil<\/td><td>approx. 2 days<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>To ensure the continuous provision of nitrogen and simultaneously to reduce the running costs, we recommend using a <a href=\"https:\/\/ness.de\/en\/nitrogen-generator\/\">nitrogen generator with a 750-l nitrogen tank<\/a>.<\/p>\n\n\n\n<p><strong>Cooling water<\/strong> is always required for the operation of the light ends removal systems. While the passive light ends removal systems mostly work without cooling water (due to air cooling), it is highly recommended for active light ends removal systems. In warmer regions with <strong>ambient temperatures of more than 25\u00baC it is even always required<\/strong>. Water cools the condenser in which the hot, gaseous light ends are cooled down and condensed.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Volume flow of cooling water<\/td><td>200 litres \/ hour<\/td><\/tr><\/tbody><\/table><\/figure>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11202\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> The recommended inlet temperature in the NESS Light-ends removal systems is 250 \u00b0C. What happens, if this is below that?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>If the recommended inlet temperature is below 250 \u00b0C, removal of the light ends is still possible, but it will be <strong>clearly worse<\/strong> than at the recommended temperature.<\/p>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11203\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> Is humidity removed from the thermal oil in addition to the light-ends?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>Indeed, <strong>also water is removed from the thermal oil additionally to the light-ends<\/strong>. The evaporation temperature of water is approx. 100 \u00b0C and therefore, it is separated like the light-ends.<\/p>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11204\" class=\"qe-faq-list ness-light-ends-removal-system\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> What happens with the separated light-ends and what do we have to observe?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>The separated light ends are collected in the <strong>light-ends collecting tank<\/strong>. This contains a volume of 70 litres.<\/p>\n\n\n\n<p><strong>It must be disposed of in accordance with the local regulations<\/strong>. We recommend storing in a metal tank outside the building in an explosion-proof room. The metal tank must always be kept closed and emptied by a company specialised in disposal.<\/p>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11205\" class=\"qe-faq-list nald250-nald250i-en\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> What is the difference between the active light-ends removal systems NALD250 and NALD250i?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>Technically seen, the design of the two products is quite similar. These two solutions distinguish by the <strong>partial return flow of light-ends gases in the NALD250i<\/strong>. By additional returning of low-boiling gases in the distillation circuit of the system, the system becomes a pure turbo-remover. For this reason, compared to the normal NALD250, the <strong>light ends removal<\/strong> can run <strong>faster for up to 5x<\/strong> depending on the individual parameters, e.g. temperature, type of oil, and system size.<\/p>\n\n\n\n<p>Due to this extremely efficient working principle the NALD 250i is further ideally suitable for the <strong>rotating operation<\/strong> of multiple separated thermal oil systems up to 400,000 litres of total volume.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-1030x483.jpg\" alt=\"\" class=\"wp-image-9908\" width=\"470\" height=\"221\" srcset=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-1030x483.jpg 1030w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-300x141.jpg 300w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-768x360.jpg 768w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-705x331.jpg 705w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i-450x211.jpg 450w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schema-nald250i.jpg 1211w\" sizes=\"auto, (max-width: 470px) 100vw, 470px\" \/><figcaption>Scheme of the partial return flow<\/figcaption><\/figure>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div id=\"qaef-11207\" class=\"qe-faq-list nald250-nald250i-en\">\n\t\t\t<div class=\"qe-list-title\">\n\t\t\t\t<h4>\n\t\t\t\t\t<i class=\"fa fa-question-circle\"><\/i> What do I have to consider in the place of installation of the NALD250 \/ NALD250i? Which conditions must be met?\t\t\t\t<\/h4>\n\t\t\t<\/div>\n\t\t\t<div class=\"qe-list-content\">\n\t\t\t\t\n<p>Principally, the light ends removal system should be installed in a <strong>well-ventilated area<\/strong>. The <strong>exhaust duct must safely lead into the open air<\/strong> and the deflagration flame arrester that comes with the system must be installed at the end. The area around this opening must be free from ignition sources.<br>The system is also suitable for <strong>outdoor installation<\/strong>. However, it should be roofed to protect it from weather, e.g. by <strong>a penthouse roof<\/strong>, to protect the components and the electronic circuits. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald.jpg\" alt=\"\" class=\"wp-image-9911\" width=\"333\" height=\"250\" srcset=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald.jpg 848w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald-300x225.jpg 300w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald-768x576.jpg 768w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald-845x636.jpg 845w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald-705x529.jpg 705w, https:\/\/ness.de\/wp-content\/uploads\/2020\/01\/schleppdach-nald-450x338.jpg 450w\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" \/><\/a><\/figure>\n\n\n\n<p><em>It should be connected to the flow line of the thermal oil system. The return flow in the thermal oil system can be led as desired.<\/em><br>With this, pay special attention to the following interface parameters:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Connection valve &#8211; thermal oil (inlet and outlet)<\/td><td>Nominal diameter DN40<\/td><\/tr><tr><td>Cooling water valves<\/td><td>Nominal diameter DN20<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Thermal oil &#8211; flow<\/td><td>2 \u2013 4 bar<\/td><\/tr><tr><td>Thermal oil &#8211; return flow<\/td><td>0 \u2013 3 bar (max. 4 bar)<\/td><\/tr><tr><td>Recommended inlet temperature<\/td><td>250 \u00b0C<\/td><\/tr><tr><td>Control air<\/td><td>4 \u2013 6 bar (g)<\/td><\/tr><tr><td>Nitrogen supply<\/td><td>&gt; 3 bar min. 99.0% N2<\/td><\/tr><tr><td>Cooling water<\/td><td>0,5 &#8211; 1 bar<\/td><\/tr><tr><td>Three-phase connection<\/td><td>appr. 5 kW<\/td><\/tr><\/tbody><\/table><\/figure>\n<br \/><a class=\"qe-faq-top\" href=\"#qe-faqs-index\"><i class=\"fa fa-angle-up\"><\/i> Back to Index<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t            <\/div>\n\t\t\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-62rxrd-8a904db805875236f47c17c7044eba16\">\n.flex_column.av-62rxrd-8a904db805875236f47c17c7044eba16{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-62rxrd-8a904db805875236f47c17c7044eba16 av_one_full first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-k7bo3m00-dea714a17bba2033b24db4b09d814171 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>Other FAQ topics that might interest you<\/h1>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4exg15-a2841256107cd5540da2c3afe311ecd4\">\n.flex_column.av-4exg15-a2841256107cd5540da2c3afe311ecd4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4exg15-a2841256107cd5540da2c3afe311ecd4 av_one_third first flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k7bocbt5-b0213846db936e7e7e67a0edcf348395\">\n.avia-image-container.av-k7bocbt5-b0213846db936e7e7e67a0edcf348395 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-k7bocbt5-b0213846db936e7e7e67a0edcf348395 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-k7bocbt5-b0213846db936e7e7e67a0edcf348395 av-styling- av-img-linked avia-align-center'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><a href=\"https:\/\/ness.de\/en\/faq-light-ends-in-the-heat-transfer-oil\/\" class='avia_image '  aria-label='light-ends'><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-2223 avia-img-lazy-loading-not-2223 avia_image ' src=\"https:\/\/ness.de\/wp-content\/uploads\/2018\/06\/Leichtsieder-845x321.jpg\" alt='' title='light-ends'  height=\"321\" width=\"845\"  itemprop=\"thumbnailUrl\"  \/><\/a><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-k7bocqqb-bcba20a358e94bf524a14ea80a7769c1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><strong>Light ends in the heat transfer oil<\/strong><br \/>\nWhat do the light ends cause in the heat transfer oil and<br \/>\nhow to act best?<\/p>\n<\/div><\/section><\/p><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-37cau1-3d456454d96f9d4e4d1dc371408793e6\">\n.flex_column.av-37cau1-3d456454d96f9d4e4d1dc371408793e6{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-37cau1-3d456454d96f9d4e4d1dc371408793e6 av_one_third flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k7bocbt5-0ca798d6eafdde04a7cc037276295a4a\">\n.avia-image-container.av-k7bocbt5-0ca798d6eafdde04a7cc037276295a4a img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-k7bocbt5-0ca798d6eafdde04a7cc037276295a4a .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-k7bocbt5-0ca798d6eafdde04a7cc037276295a4a av-styling- av-img-linked avia-align-center'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><a href=\"https:\/\/ness.de\/faq-ness-nlpa\/\" class='avia_image '  aria-label='slider-nlpa'><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-9772 avia-img-lazy-loading-not-9772 avia_image ' src=\"https:\/\/ness.de\/wp-content\/uploads\/2020\/02\/slider-nlpa-845x321.jpg\" alt='' title='slider-nlpa'  height=\"321\" width=\"845\"  itemprop=\"thumbnailUrl\"  \/><\/a><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-k7bocqqb-bcba20a358e94bf524a14ea80a7769c1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><strong>NESS NLPA150 \/ NLPA250<\/strong><br \/>\nPassive light ends removal system<br \/>\nNLPA150 \/ NLPA250 as special solution<\/p>\n<\/div><\/section><\/p><\/div>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" 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