{"id":25772,"date":"2025-11-12T13:19:37","date_gmt":"2025-11-12T12:19:37","guid":{"rendered":"https:\/\/bgz.de\/?page_id=25772"},"modified":"2026-04-29T12:32:22","modified_gmt":"2026-04-29T10:32:22","slug":"dpopt-optimisation-of-the-pressure-switch","status":"publish","type":"page","link":"https:\/\/bgz.de\/en\/dpopt-optimisation-of-the-pressure-switch\/","title":{"rendered":"DPOPT \u2013 Optimisation of the pressure switch"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-w4vtr1-c0f96300ee944d7ac1521cd1d0213d0c\">\n.avia-section.av-w4vtr1-c0f96300ee944d7ac1521cd1d0213d0c{\nbackground-color:#0d57a0;\nbackground-image:unset;\n}\n<\/style>\n<div id='headerpetrol'  class='avia-section av-w4vtr1-c0f96300ee944d7ac1521cd1d0213d0c main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_codeblock  avia-builder-el-first  avia-bg-style-scroll container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-25772'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8oi00o9-f1baeb38fc0d698a22a4ef99caaf4eb4\">\n.av_textblock_section.av-m8oi00o9-f1baeb38fc0d698a22a4ef99caaf4eb4{\nbackground-color:#0d57a0;\n}\n#top .av_textblock_section.av-m8oi00o9-f1baeb38fc0d698a22a4ef99caaf4eb4 .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-m8oi00o9-f1baeb38fc0d698a22a4ef99caaf4eb4 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h1 class=\"h3gestaltung\"><strong><br \/>\nDPOPT \u2013 Optimisation of the pressure switch<\/strong><\/h1>\n<\/div><\/section>\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='after_section_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-25772'><div class='entry-content-wrapper clearfix'>\n\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2upq1p-f9c078ecbc5533a06891da754eb514b7\">\n#top .hr.hr-invisible.av-2upq1p-f9c078ecbc5533a06891da754eb514b7{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-2upq1p-f9c078ecbc5533a06891da754eb514b7 hr-invisible  avia-builder-el-3  el_after_av_codeblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-6oeddkt-ad70972e3305fd5720e199a85422d4a2 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"anleser\">The sealing function of the double-lid sealing system is monitored by means of a pressure switch mounted in the outer sealing barrier of the double-lid sealing system and connected to the inter-lid space.<\/div>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf3584d-c28901021c6bd85532d1b9a06d7f8d65\">\n#top .hr.hr-invisible.av-mhf3584d-c28901021c6bd85532d1b9a06d7f8d65{\nmargin-top:0px;\nheight:1px;\n}\n<\/style>\n<div  class='hr av-mhf3584d-c28901021c6bd85532d1b9a06d7f8d65 hr-invisible  avia-builder-el-5  el_after_av_textblock  el_before_av_two_third '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-1ggjija-fc0edfeed3eda55dc70b686df71bdb85 av_two_third  avia-builder-el-6  el_after_av_hr  el_before_av_one_third  first flex_column_div  '     ><section  class='av_textblock_section av-1bu2psm-88473ecf6fc59f704d67ff08788fef5e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The pressure switch in turn is connected to the cask monitoring system. If, during storage, the pressure in the inter-lid space drops below the pressure level in the reference chamber of the pressure switch due to a defect in one of the two barriers, the contact of the main switch is opened and the cask monitoring system reports \u201cInter-lid pressure low\u201d.<\/p>\n<\/div><\/section><\/div>\n<div  class='flex_column av-5vnfkpp-4b38439327d1d7164c2af47f747a0ad0 av_one_third  avia-builder-el-8  el_after_av_two_third  el_before_av_one_full  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5cixwrh-469d8304dd1c7405079f065bb5650d47\">\n#top .hr.av-5cixwrh-469d8304dd1c7405079f065bb5650d47{\nmargin-top:0px;\nmargin-bottom:30px;\n}\n.hr.av-5cixwrh-469d8304dd1c7405079f065bb5650d47 .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-5cixwrh-469d8304dd1c7405079f065bb5650d47 hr-custom  avia-builder-el-9  el_before_av_textblock  avia-builder-el-first  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rsf3z1-9782591e931f6a0e77e99dd2ff0f3df6\">\n#top .av_textblock_section.av-rsf3z1-9782591e931f6a0e77e99dd2ff0f3df6 .avia_textblock{\ncolor:#0d57a0;\n}\n<\/style>\n<section  class='av_textblock_section av-rsf3z1-9782591e931f6a0e77e99dd2ff0f3df6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p><em>Figure 8:<br \/>\nBasic design of the pressure switch<\/em><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1iyrbx-2f4a20ffe52e15a647a2fff6b56c9aca\">\n#top .hr.av-1iyrbx-2f4a20ffe52e15a647a2fff6b56c9aca{\nmargin-top:10px;\nmargin-bottom:-20px;\n}\n.hr.av-1iyrbx-2f4a20ffe52e15a647a2fff6b56c9aca .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-1iyrbx-2f4a20ffe52e15a647a2fff6b56c9aca hr-custom  avia-builder-el-11  el_after_av_textblock  avia-builder-el-last  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div>\n<div class='flex_column_table av-3vq9p5p-cf3cfa34d637cc539362a3199aef3ade sc-av_one_full av-equal-height-column-flextable'><div  class='flex_column av-3vq9p5p-cf3cfa34d637cc539362a3199aef3ade av_one_full  avia-builder-el-12  el_after_av_one_third  el_before_av_one_half  first flex_column_table_cell av-equal-height-column av-align-top  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3ftp4ot-0bfb4950b3ba3b36a6e8d1bb0a90dcea\">\n.avia-image-container.av-3ftp4ot-0bfb4950b3ba3b36a6e8d1bb0a90dcea img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-3ftp4ot-0bfb4950b3ba3b36a6e8d1bb0a90dcea .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-3ftp4ot-0bfb4950b3ba3b36a6e8d1bb0a90dcea av-styling- avia-align-center  avia-builder-el-13  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-11544 avia-img-lazy-loading-not-11544 avia_image ' src=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23.png\" alt='' title='BGZ-Forschungsprogramm_Abb_23'  height=\"465\" width=\"1195\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23.png 1195w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23-300x117.png 300w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23-1030x401.png 1030w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23-768x299.png 768w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_23-705x274.png 705w\" sizes=\"(max-width: 1195px) 100vw, 1195px\" \/><\/div><\/div><\/div><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n<div class='flex_column_table av-2pegyy3-cac15075cc8ec503c0d4185b8b754b4d sc-av_one_half av-equal-height-column-flextable'><div  class='flex_column av-2pegyy3-cac15075cc8ec503c0d4185b8b754b4d av_one_half  avia-builder-el-14  el_after_av_one_full  el_before_av_one_fourth  first flex_column_table_cell av-equal-height-column av-align-top  column-top-margin'     ><section  class='av_textblock_section av-mhf2o1pz-22f5d510a6caa28db19552a551edc033 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The pressure switch is a complex component (see Figure 8 and Figure 9), which is manufactured to high quality standards. However, random defects cannot be completely ruled out. The pressure switch therefore has a self-monitoring function in the form of an additional switch for the reference chamber. If pressure in the reference chamber drops below the specified switching pressure due to a pressure switch defect, the corresponding contact is opened and the cask monitoring system reports \u201cReference chamber pressure low\u201d.<\/p>\n<\/div><\/section><\/div>\n<div class='av-flex-placeholder'><\/div><div  class='flex_column av-19pt37a-ad0b8fef505f1ff716cfee0b45242251 av_one_fourth  avia-builder-el-16  el_after_av_one_half  el_before_av_one_fourth  flex_column_table_cell av-equal-height-column av-align-top  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3kiyrg6-5be73f1c0b37615e94bc86f026709046\">\n#top .hr.hr-invisible.av-3kiyrg6-5be73f1c0b37615e94bc86f026709046{\nheight:10px;\n}\n<\/style>\n<div  class='hr av-3kiyrg6-5be73f1c0b37615e94bc86f026709046 hr-invisible  avia-builder-el-17  el_before_av_image  avia-builder-el-first '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnf3p2-c39cc3261e51adc8f8115be06990bfee\">\n.avia-image-container.av-lnf3p2-c39cc3261e51adc8f8115be06990bfee img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-lnf3p2-c39cc3261e51adc8f8115be06990bfee .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-lnf3p2-c39cc3261e51adc8f8115be06990bfee av-styling- avia-align-center  avia-builder-el-18  el_after_av_hr  avia-builder-el-last '   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-11548 avia-img-lazy-loading-not-11548 avia_image ' src=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_24-1.png\" alt='' title='BGZ-Forschungsprogramm_Abb_24'  height=\"563\" width=\"584\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_24-1.png 584w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_24-1-300x289.png 300w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_24-1-36x36.png 36w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/><\/div><\/div><\/div><\/p><\/div>\n<div class='av-flex-placeholder'><\/div><div  class='flex_column av-3rvb81i-a67a9acf25e026300d6204b0c7c2c2e0 av_one_fourth  avia-builder-el-19  el_after_av_one_fourth  el_before_av_hr  flex_column_table_cell av-equal-height-column av-align-top  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-v9mnyu-290af5ebbf58fed5c78a60b1cbd3859d\">\n#top .hr.av-v9mnyu-290af5ebbf58fed5c78a60b1cbd3859d{\nmargin-top:0px;\nmargin-bottom:30px;\n}\n.hr.av-v9mnyu-290af5ebbf58fed5c78a60b1cbd3859d .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-v9mnyu-290af5ebbf58fed5c78a60b1cbd3859d hr-custom  avia-builder-el-20  el_before_av_textblock  avia-builder-el-first  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-333z6ae-2863b2e004dceb08b695fa3d7209d1c5\">\n#top .av_textblock_section.av-333z6ae-2863b2e004dceb08b695fa3d7209d1c5 .avia_textblock{\ncolor:#0d57a0;\n}\n<\/style>\n<section  class='av_textblock_section av-333z6ae-2863b2e004dceb08b695fa3d7209d1c5 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p><em>Figure 9:<br \/>\n<\/em><em>Pressure switch \u2013 top view without cover plate I<\/em><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2m8mw3a-8bfa47c5590975365d9fdd58f033af9c\">\n#top .hr.av-2m8mw3a-8bfa47c5590975365d9fdd58f033af9c{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-2m8mw3a-8bfa47c5590975365d9fdd58f033af9c .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-2m8mw3a-8bfa47c5590975365d9fdd58f033af9c hr-custom  avia-builder-el-22  el_after_av_textblock  avia-builder-el-last  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2z4fee-0672fef75b8565b85b6bf02f78e4ab7d\">\n#top .hr.hr-invisible.av-2z4fee-0672fef75b8565b85b6bf02f78e4ab7d{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-2z4fee-0672fef75b8565b85b6bf02f78e4ab7d hr-invisible  avia-builder-el-23  el_after_av_one_fourth  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-mhf30c5g-6cfddf015db839245a5f7815fce29869 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>There have only been a very limited number of defects \u2013 so-called pressure switch events \u2013 in the more than 1,400 pressure switches that are installed worldwide. Some of these 1,400 switches have been in operation for more than 30 years, adding up to a total operating time of more than 20,000 years. The failure probability of a pressure switch is in the range of less than ten 6 per year.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-t7i75i-b429b34ac846cedf5f6568a1b9aef7e1\">\n#top .hr.hr-invisible.av-t7i75i-b429b34ac846cedf5f6568a1b9aef7e1{\nheight:10px;\n}\n<\/style>\n<div  class='hr av-t7i75i-b429b34ac846cedf5f6568a1b9aef7e1 hr-invisible  avia-builder-el-25  el_after_av_textblock  el_before_av_four_fifth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class='flex_column_table av-2a7i1hy-61d18efa412e5a643c459cf744a91885 sc-av_four_fifth av-equal-height-column-flextable'><div  class='flex_column av-2a7i1hy-61d18efa412e5a643c459cf744a91885 av_four_fifth  avia-builder-el-26  el_after_av_hr  el_before_av_one_fifth  first flex_column_table_cell av-equal-height-column av-align-top  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf2vjva-30ae16a761c5b5232dcaf51a47382c4b\">\n.avia-image-container.av-mhf2vjva-30ae16a761c5b5232dcaf51a47382c4b img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-mhf2vjva-30ae16a761c5b5232dcaf51a47382c4b .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-mhf2vjva-30ae16a761c5b5232dcaf51a47382c4b av-styling- avia-align-center  avia-builder-el-27  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-11546 avia-img-lazy-loading-not-11546 avia_image ' src=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25.png\" alt='' title='BGZ-Forschungsprogramm_Abb_25'  height=\"907\" width=\"1196\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25.png 1196w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25-300x228.png 300w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25-1030x781.png 1030w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25-768x582.png 768w, https:\/\/bgz.de\/wp-content\/uploads\/2022\/05\/BGZ-Forschungsprogramm_Abb_25-705x535.png 705w\" sizes=\"(max-width: 1196px) 100vw, 1196px\" \/><\/div><\/div><\/div><\/div>\n<div class='av-flex-placeholder'><\/div><div  class='flex_column av-55j7rq-fad81497de81a2671c8feeede2d3fb98 av_one_fifth  avia-builder-el-28  el_after_av_four_fifth  el_before_av_hr  flex_column_table_cell av-equal-height-column av-align-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18882ra-6179b70129eb21495f2dc43f704736b1\">\n#top .hr.av-18882ra-6179b70129eb21495f2dc43f704736b1{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-18882ra-6179b70129eb21495f2dc43f704736b1 .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-18882ra-6179b70129eb21495f2dc43f704736b1 hr-custom  avia-builder-el-29  el_before_av_textblock  avia-builder-el-first  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf2w6w7-8ae9f428ca84511cc85c5dd3a70c92d7\">\n#top .av_textblock_section.av-mhf2w6w7-8ae9f428ca84511cc85c5dd3a70c92d7 .avia_textblock{\ncolor:#0d57a0;\n}\n<\/style>\n<section  class='av_textblock_section av-mhf2w6w7-8ae9f428ca84511cc85c5dd3a70c92d7 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p><em>Figure 10:<\/em><br \/>\n<em>Comparison of years of operation and pressure switch events<\/em><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-s7jm7q-28c790905aec618dbc630d27ba06be0a\">\n#top .hr.av-s7jm7q-28c790905aec618dbc630d27ba06be0a{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-s7jm7q-28c790905aec618dbc630d27ba06be0a .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-s7jm7q-28c790905aec618dbc630d27ba06be0a hr-custom  avia-builder-el-31  el_after_av_textblock  avia-builder-el-last  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf2x5yp-cd35c68f3f45d8d3b8676eced959a7d2\">\n#top .hr.hr-invisible.av-mhf2x5yp-cd35c68f3f45d8d3b8676eced959a7d2{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-mhf2x5yp-cd35c68f3f45d8d3b8676eced959a7d2 hr-invisible  avia-builder-el-32  el_after_av_one_fifth  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf2ffze-0f188b49df723862283f1f50a1d5fb5e\">\n#top .av_textblock_section.av-mhf2ffze-0f188b49df723862283f1f50a1d5fb5e .avia_textblock{\ncolumn-count:2;\n}\n<\/style>\n<section  class='av_textblock_section av-mhf2ffze-0f188b49df723862283f1f50a1d5fb5e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_multi_colums av_inherit_color'  itemprop=\"text\" ><p>Figure 10 shows that pressure switch events do not correlate with the total number of operating years. It can therefore be assumed that events occur randomly, and it cannot be deduced from their distribution over time that a systematic increase in failures is associated with extended interim storage. The decrease in the frequency of failures is also related to incorporation of the lessons learned during operation or during failure evaluation into the handling of the pressure switches.<\/p>\n<p>Specific evaluations of pressure switch events show that the vast majority of events were due to leakage at the feedthroughs of the contact pins. This resulted in a pressure drop in the reference chamber but not in a failure of the containment function of the lid system. However, BGZ is working with GNS to optimise the pressure switch for interim storage purposes. Preliminary studies by the manufacturer HBM and GNS show that using glass feedthroughs instead of the ceramic feedthroughs previously used is a promising solution to the problem, as glass feedthroughs do not require additional soldering material.<\/p>\n<p>The DPOPT research programme will subject the new contact feedthrough design to several tests covering operating conditions. The contact pins will be subjected to different mechanical stresses, which are considered to be the cause of the previous defects. These include pure weight loads and the simulation of repeated plugging and unplugging. The new switch will also be subjected to thermal loads to demonstrate that the glass feedthroughs are suitable for the entire temperature range envisaged. Load tests will be followed by helium leak tests in which the specified maximum leak rate must not be exceeded. After successful completion of the internal qualification, a qualification of the glass feedthrough is planned at BAM in order to be able to use the optimised design in the future production of pressure switches.<\/p>\n<\/div><\/section>\n<div  class='flex_column av-110xst2-8bebc0e3f0ff83a3564833f6938b5086 av_one_full  avia-builder-el-34  el_after_av_textblock  el_before_av_hr  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhf2gya7-805a35a30f4645b3aaa7c0fe861f5373\">\n#top .hr.av-mhf2gya7-805a35a30f4645b3aaa7c0fe861f5373{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-mhf2gya7-805a35a30f4645b3aaa7c0fe861f5373 .hr-inner{\nwidth:100px;\nborder-color:#0d57a0;\n}\n<\/style>\n<div  class='hr av-mhf2gya7-805a35a30f4645b3aaa7c0fe861f5373 hr-custom  avia-builder-el-35  el_before_av_textblock  avia-builder-el-first  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-mhdi8073-dff18af6c35904dff7a35bb2df2e9774 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 class=\"anleser\">Publications<\/h2>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mhdid6h7-7023a3279c24d8e4843488a9430ef186\">\n#top .hr.hr-invisible.av-mhdid6h7-7023a3279c24d8e4843488a9430ef186{\nheight:5px;\n}\n<\/style>\n<div  class='hr av-mhdid6h7-7023a3279c24d8e4843488a9430ef186 hr-invisible  avia-builder-el-37  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-moiswfbr-d0a54095ae5c3eb83151bcbd02f64230 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li><strong><a href=\"https:\/\/doi.org\/10.69152\/BGZFachworkshop\/proceedings\/2025\">DPOPT \u2013 Optimierung des Druckschalters<\/a><\/strong>, Jan Klingen, Dr. Nadine B\u00f6ning, Ralf Schneider\u2010Eickhoff, Proceedings 4. Fachworkshop Zwischenlagerung, BGZ Gesellschaft f\u00fcr Zwischenlagerung, DOI 10.69152\/BGZFachworkshop\/proceedings\/2025, 2025.<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div>\n<div  class='hr av-moiszpeh-546ad197ccbba7f7f64018b244f56c0c hr-default  avia-builder-el-39  el_after_av_one_full  el_before_av_buttonrow '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='avia-buttonrow-wrap av-m8ofr2q8-b1300f8408a98bacf8600206ddf1663d avia-buttonrow-left  avia-builder-el-40  el_after_av_hr  el_before_av_hr '>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1369wt9-74746dba5089f6588c185a0c2aeafc6a\">\n#top #wrap_all .avia-button.av-1369wt9-74746dba5089f6588c185a0c2aeafc6a{\nmargin-bottom:5px;\nmargin-right:5px;\n}\n<\/style>\n<a href='#top'  class='avia-button av-1369wt9-74746dba5089f6588c185a0c2aeafc6a avia-icon_select-no avia-size-small avia-color-theme-color'   aria-label=\"To top\"><span class='avia_iconbox_title' >To top<\/span><\/a>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rdy9z1-629b3a287ca96bd66ba85ca3d1d03e3d\">\n#top #wrap_all .avia-button.av-rdy9z1-629b3a287ca96bd66ba85ca3d1d03e3d{\nmargin-bottom:5px;\nmargin-right:5px;\n}\n<\/style>\n<a href='https:\/\/bgz.de\/en\/research-programme\/#forschungsaktivitaeten'  class='avia-button av-rdy9z1-629b3a287ca96bd66ba85ca3d1d03e3d avia-icon_select-no avia-size-small avia-color-theme-color'   aria-label=\"All research activities\"><span class='avia_iconbox_title' >All research activities<\/span><\/a>\n<\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kcokpi-2990ce361a52325a8d364a809a7ebfb7\">\n#top .hr.hr-invisible.av-kcokpi-2990ce361a52325a8d364a809a7ebfb7{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-kcokpi-2990ce361a52325a8d364a809a7ebfb7 hr-invisible  avia-builder-el-41  el_after_av_buttonrow  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-25772","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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