{"id":3912,"date":"2024-07-31T08:59:46","date_gmt":"2024-07-31T08:59:46","guid":{"rendered":"https:\/\/linn-pumpen.de\/?page_id=3912"},"modified":"2026-05-05T10:40:26","modified_gmt":"2026-05-05T08:40:26","slug":"valves","status":"publish","type":"page","link":"https:\/\/linn-pumpen.de\/en\/zahnradpumpen\/ventile\/","title":{"rendered":"Valves"},"content":{"rendered":"<section  class='av_textblock_section av-sg89fy-fd6506797685a1d12a67caf40e422964'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>Pressure relief valves for gear pumps<\/h1>\n<p data-start=\"2109\" data-end=\"2404\">Pressure relief valves protect gear pumps and systems from excessive pressure. They limit the pressure in the system and divert or discharge the fluid when the set opening pressure is reached. This relieves stress on the pump, pipes, seals, and connected components.<\/p>\n<p data-start=\"2406\" data-end=\"2647\">Linn-Pumpen offers external pressure relief valves from the DB series as well as integrated safety valves from the F..U\/DU series for this purpose. The selection depends on the flow rate, set pressure, fluid, viscosity, temperature, and installation conditions.<\/p>\n<\/div><\/section>\n<div  class='avia-button-wrap av-miacavol-54fe5af78b1b3346c08c3555978b0506-wrap avia-button-left  avia-builder-el-1  el_after_av_textblock  el_before_av_layout_row  avia-builder-el-last'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-miacavol-54fe5af78b1b3346c08c3555978b0506\">\n#top #wrap_all .avia-button.av-miacavol-54fe5af78b1b3346c08c3555978b0506{\nfont-size:16px;\ntransition:all 0.4s ease-in-out;\n}\n<\/style>\n<a href='https:\/\/linn-pumpen.de\/en\/angebot-anfordern\/?kontext=Druckbegrenzungsventile'  class='avia-button av-miacavol-54fe5af78b1b3346c08c3555978b0506 av-link-btn avia-icon_select-no avia-size-medium avia-position-left avia-color-theme-color'   aria-label=\"Request technical specifications\"><span class='avia_iconbox_title' >Request technical specifications<\/span><\/a><\/div>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av-layout-grid-1'  class='av-layout-grid-container av-3j1y8u-f862f2533456ff1e0a8d59da7c1fffe6 entry-content-wrapper main_color av-flex-cells  avia-builder-el-2  el_after_av_button  el_before_av_section  grid-row-not-first  container_wrap sidebar_right'  >\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-yif77y-77cec829b3f4e6d1c6f0723221f905b6\">\n.flex_cell.av-yif77y-77cec829b3f4e6d1c6f0723221f905b6{\nvertical-align:top;\n}\n<\/style>\n<div class='flex_cell av-yif77y-77cec829b3f4e6d1c6f0723221f905b6 av-gridrow-cell av_one_full no_margin  avia-builder-el-3  avia-builder-el-no-sibling  content-align-top'  ><div class='flex_cell_inner'><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2008x4-0971c544e7370c3e49457632f1a44e18\">\n#top .av-special-heading.av-2008x4-0971c544e7370c3e49457632f1a44e18{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-2008x4-0971c544e7370c3e49457632f1a44e18 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-2008x4-0971c544e7370c3e49457632f1a44e18 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-2008x4-0971c544e7370c3e49457632f1a44e18 av-special-heading-h2  avia-builder-el-4  el_before_av_textblock  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Series<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-mosde29s-4aefeee49edf68fb3242475926af3f0e'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Select the appropriate pressure relief valve based on the installation situation: externally in the line or integrated into the gear pump\u2019s cover.<\/p>\n<\/div><\/section><br \/>\n<div class='flex_column_table av-w8h3im-31cfd824e17d7165ccdc97255e04860b sc-av_one_third av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-w8h3im-31cfd824e17d7165ccdc97255e04860b\">\n@keyframes av_boxShadowEffect_av-w8h3im-31cfd824e17d7165ccdc97255e04860b-row {\n0%   { box-shadow:  0 0 0 0 ; opacity: 1; }\n100% { box-shadow:  0 0 10px 0 ; opacity: 1; }\n}\n@keyframes av_boxShadowEffect_av-w8h3im-31cfd824e17d7165ccdc97255e04860b-column {\n0%   { box-shadow:  0 0 0 0 #9d9c9c; opacity: 1; }\n100% { box-shadow:  0 0 10px 0 #9d9c9c; opacity: 1; }\n}\n.flex_column.av-w8h3im-31cfd824e17d7165ccdc97255e04860b{\nwidth:31.333333333333%;\nmargin-left:0;\nbox-shadow: 0 0 10px 0 #9d9c9c;\n}\n#top .flex_column_table.av-equal-height-column-flextable.av-w8h3im-31cfd824e17d7165ccdc97255e04860b .av-flex-placeholder{\nwidth:3%;\n}\n<\/style>\n<div  class='flex_column av-w8h3im-31cfd824e17d7165ccdc97255e04860b av_one_third  avia-builder-el-6  el_after_av_textblock  el_before_av_one_third  lp-card first flex_column_table_cell av-equal-height-column av-align-top shadow-not-animated avia-link-column av-column-link avia-link-column-hover  column-top-margin'    data-link-column-url=\"https:\/\/linn-pumpen.de\/en\/produkt\/db\/\"   ><a class=\"av-screen-reader-only\" href=\"https:\/\/linn-pumpen.de\/en\/produkt\/db\/\" >Link to: Baureihe DB<\/a><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3oegiw-8206b3068d160edaddba47b50e64431f\">\n#top .hr.hr-invisible.av-3oegiw-8206b3068d160edaddba47b50e64431f{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-3oegiw-8206b3068d160edaddba47b50e64431f hr-invisible  avia-builder-el-7  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-ulgm1a-eec828362ab3c9560ccdd96e2163b27a\">\n.avia-image-container.av-ulgm1a-eec828362ab3c9560ccdd96e2163b27a img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-ulgm1a-eec828362ab3c9560ccdd96e2163b27a .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-ulgm1a-eec828362ab3c9560ccdd96e2163b27a av-styling- avia-align-center  avia-builder-el-8  el_after_av_hr  el_before_av_textblock'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" loading=\"lazy\" class='wp-image-5311 avia-img-lazy-loading-5311 avia_image' src=\"https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/Druckbegrenzungsventil-2025-300x225.png\" alt='Pressure relief valves series DB' title='Pressure relief valves'  height=\"225\" width=\"300\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/Druckbegrenzungsventil-2025-300x225.png 300w, https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/Druckbegrenzungsventil-2025-768x576.png 768w, https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/Druckbegrenzungsventil-2025-705x529.png 705w, https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/Druckbegrenzungsventil-2025.png 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-37yoig-3ace90ac98b159159c81d70bdbc3d8e7\">\n#top .av_textblock_section.av-37yoig-3ace90ac98b159159c81d70bdbc3d8e7 .avia_textblock{\npadding:0 20px 0 20px;\ntext-align:center;\n}\n<\/style>\n<section  class='av_textblock_section av-37yoig-3ace90ac98b159159c81d70bdbc3d8e7'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>DB series<\/h3>\n<p>Directly controlled seat valves for pressure limitation in the system<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lz724lbh-e1dcd958a540477764be2040007bc2f8\">\n#top .av_textblock_section.av-lz724lbh-e1dcd958a540477764be2040007bc2f8 .avia_textblock{\nfont-size:16px;\ntext-align:center;\n}\n<\/style>\n<section  class='av_textblock_section av-lz724lbh-e1dcd958a540477764be2040007bc2f8'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong data-start=\"871\" data-end=\"886\">Flow rate:<\/strong> up to 250 l\/min<br data-start=\"900\" data-end=\"903\" \/><strong data-start=\"905\" data-end=\"923\">Setting pressure:<\/strong> up to 100 bar<br data-start=\"935\" data-end=\"938\" \/><strong data-start=\"940\" data-end=\"951\">Installation:<\/strong> external in line or unit<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-lz72910v-861f38083effa9f41257b535433cc7b8-wrap avia-button-center  avia-builder-el-11  el_after_av_textblock  avia-builder-el-last'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lz72910v-861f38083effa9f41257b535433cc7b8\">\n#top #wrap_all .avia-button.av-lz72910v-861f38083effa9f41257b535433cc7b8{\nfont-size:20px;\ntransition:all 0.4s ease-in-out;\n}\n<\/style>\n<a href='https:\/\/linn-pumpen.de\/en\/produkt\/db\/'  class='avia-button av-lz72910v-861f38083effa9f41257b535433cc7b8 av-link-btn avia-icon_select-no avia-size-medium avia-position-center avia-color-theme-color'  title=\"Learn more\" aria-label=\"Learn more\"><span class='avia_iconbox_title' >To the product page<\/span><\/a><\/div><\/p><\/div><div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1axe5wu-c8b68b586eed89c9f294b06a29b13678\">\n@keyframes av_boxShadowEffect_av-1axe5wu-c8b68b586eed89c9f294b06a29b13678-row {\n0%   { box-shadow:  0 0 0 0 ; opacity: 1; }\n100% { box-shadow:  0 0 10px 0 ; opacity: 1; }\n}\n@keyframes av_boxShadowEffect_av-1axe5wu-c8b68b586eed89c9f294b06a29b13678-column {\n0%   { box-shadow:  0 0 0 0 #9d9c9c; opacity: 1; }\n100% { box-shadow:  0 0 10px 0 #9d9c9c; opacity: 1; }\n}\n.flex_column.av-1axe5wu-c8b68b586eed89c9f294b06a29b13678{\nwidth:31.333333333333%;\nmargin-left:0;\nbox-shadow: 0 0 10px 0 #9d9c9c;\n}\n#top .flex_column_table.av-equal-height-column-flextable.av-1axe5wu-c8b68b586eed89c9f294b06a29b13678 .av-flex-placeholder{\nwidth:3%;\n}\n<\/style>\n<div  class='flex_column av-1axe5wu-c8b68b586eed89c9f294b06a29b13678 av_one_third  avia-builder-el-12  el_after_av_one_third  avia-builder-el-last  lp-card flex_column_table_cell av-equal-height-column av-align-top shadow-not-animated avia-link-column av-column-link avia-link-column-hover  column-top-margin'    data-link-column-url=\"https:\/\/linn-pumpen.de\/en\/produkt\/fu-du\/\"   ><a class=\"av-screen-reader-only\" href=\"https:\/\/linn-pumpen.de\/en\/produkt\/fu-du\/\" >Link to: Baureihe F..U\/DU<\/a><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rprrbi-9c46595728306a2ca9f396851a56126f\">\n#top .hr.hr-invisible.av-rprrbi-9c46595728306a2ca9f396851a56126f{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-rprrbi-9c46595728306a2ca9f396851a56126f hr-invisible  avia-builder-el-13  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-lz8d6jbb-7d085200c10868453e51fadd7853ddde\">\n.avia-image-container.av-lz8d6jbb-7d085200c10868453e51fadd7853ddde img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-lz8d6jbb-7d085200c10868453e51fadd7853ddde .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-lz8d6jbb-7d085200c10868453e51fadd7853ddde av-styling- avia-align-center  avia-builder-el-14  el_after_av_hr  el_before_av_textblock'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" loading=\"lazy\" class='wp-image-5321 avia-img-lazy-loading-5321 avia_image' src=\"https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/DU570-590_DB_600-300x225.png\" alt='Pressure relief valves in the pump cover' title='Pressure relief valves'  height=\"225\" width=\"300\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/DU570-590_DB_600-300x225.png 300w, https:\/\/linn-pumpen.de\/wp-content\/uploads\/2024\/08\/DU570-590_DB_600.png 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lz8d6xkh-ab166d4492f4b56797faa4aa0b8ca906\">\n#top .av_textblock_section.av-lz8d6xkh-ab166d4492f4b56797faa4aa0b8ca906 .avia_textblock{\npadding:0 20px 0 20px;\ntext-align:center;\n}\n<\/style>\n<section  class='av_textblock_section av-lz8d6xkh-ab166d4492f4b56797faa4aa0b8ca906'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Series F..U\/DU<\/h3>\n<p>Safety valve in pump cover for series F and D<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-162gd8e-9dd1bacb578ab1d382a79918b99656ef\">\n#top .av_textblock_section.av-162gd8e-9dd1bacb578ab1d382a79918b99656ef .avia_textblock{\nfont-size:16px;\ntext-align:center;\n}\n<\/style>\n<section  class='av_textblock_section av-162gd8e-9dd1bacb578ab1d382a79918b99656ef'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong data-start=\"1115\" data-end=\"1130\">Flow rate:<\/strong> up to 124 l\/min (depending on the pump)<br data-start=\"1169\" data-end=\"1172\" \/><strong data-start=\"1174\" data-end=\"1192\">Setting pressure:<\/strong> 2 \/ 20 bar\u00a0<br data-start=\"1206\" data-end=\"1209\" \/><strong data-start=\"1211\" data-end=\"1222\">Installation:<\/strong> integrated safety valve in the pump<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-14pobn2-35cd11f80ce1cf4916031ea16109f730-wrap avia-button-center  avia-builder-el-17  el_after_av_textblock  avia-builder-el-last'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-14pobn2-35cd11f80ce1cf4916031ea16109f730\">\n#top #wrap_all .avia-button.av-14pobn2-35cd11f80ce1cf4916031ea16109f730{\nfont-size:20px;\ntransition:all 0.4s ease-in-out;\n}\n<\/style>\n<a href='https:\/\/linn-pumpen.de\/en\/produkt\/fu-du\/'  class='avia-button av-14pobn2-35cd11f80ce1cf4916031ea16109f730 av-link-btn avia-icon_select-no avia-size-medium avia-position-center avia-color-theme-color'  title=\"Learn more\" aria-label=\"Learn more\"><span class='avia_iconbox_title' >To the product page<\/span><\/a><\/div><\/p><\/div><\/div><!--close column table wrapper. Autoclose: 1 --><\/p>\n<\/div><\/div><\/div><div id='av_section_1'  class='avia-section av-av_section-e4ef95e6d64daa5d43c9bd2540e73530 main_color avia-section-default avia-no-border-styling  avia-builder-el-18  el_after_av_layout_row  el_before_av_one_full  avia-bg-style-scroll 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-3912'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-av_one_full-a2cef933b0a555f25d1e39b22a8e9dae av_one_full  avia-builder-el-19  el_before_av_one_third  avia-builder-el-first  first flex_column_div'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mosdeq1l-d9d33e9ae8c5817f074daf3bfc0a26c9\">\n#top .av-special-heading.av-mosdeq1l-d9d33e9ae8c5817f074daf3bfc0a26c9{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-mosdeq1l-d9d33e9ae8c5817f074daf3bfc0a26c9 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-mosdeq1l-d9d33e9ae8c5817f074daf3bfc0a26c9 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-mosdeq1l-d9d33e9ae8c5817f074daf3bfc0a26c9 av-special-heading-h2  avia-builder-el-20  avia-builder-el-no-sibling'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >External or integrated pressure relief valve?<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div><div  class='flex_column av-av_one_third-a2cef933b0a555f25d1e39b22a8e9dae av_one_third  avia-builder-el-21  el_after_av_one_full  el_before_av_one_third  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mosdf5px-6cb63407d439a86f424e4bea416e1a89'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>DB Series \u2013 External Pressure Relief Valve<\/h3>\n<p><strong data-start=\"3042\" data-end=\"3086\">For installation in a pipeline or unit.<\/strong><br data-start=\"3086\" data-end=\"3089\" \/>The DB series is a direct-acting seat valve designed to limit system pressure. It is suitable for applications in which an external pressure relief valve is installed outside the gear pump.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-av_one_third-538dd737667e19053994a94b9156413b av_one_third  avia-builder-el-23  el_after_av_one_third  el_before_av_one_third  flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mosdfi2l-6bc3937141d45a4ec5cc392711cbfb98'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>F..U\/DU Series \u2013 Integrated Safety Valve<\/h3>\n<p><strong data-start=\"3497\" data-end=\"3555\">For F- and D-series gear pumps with a valve in the pump cover.<\/strong><br data-start=\"3555\" data-end=\"3558\" \/>The F..U\/DU series consists of F- and D-pumps with an integrated pressure relief valve. When the opening pressure is reached, the valve diverts flow internally from the discharge side to the suction side.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-av_one_third-538dd737667e19053994a94b9156413b av_one_third  avia-builder-el-25  el_after_av_one_third  avia-builder-el-last  flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mosdftym-9a147232cce6e30ad7f2c3c79101acfa'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Important considerations for the design<\/h3>\n<p>The key factors are flow rate, desired opening pressure, fluid, viscosity, temperature, and installation location. A pressure relief valve must be compatible with the pump and the system and does not automatically replace a comprehensive safety system.<\/p>\n<\/div><\/section><\/div><\/div><\/div><\/div><!-- close content main div --><\/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-3912'><div class='entry-content-wrapper clearfix'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_one_full-898d72ca2ff1e5541a87b6633d55ed00\">\n.flex_column.av-av_one_full-898d72ca2ff1e5541a87b6633d55ed00{\npadding:28px 0 0 0;\n}\n<\/style>\n<div  class='flex_column av-av_one_full-898d72ca2ff1e5541a87b6633d55ed00 av_one_full  avia-builder-el-27  el_after_av_section  avia-builder-el-no-sibling  first flex_column_div'     ><section  class='av_textblock_section av-mosdge2w-dce48084516aa6a44ba696356f95c724'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>FAQ<\/h3>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mosdjkhs-701876773a4ba24d8be2728da1c252cd\">\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler{\ncolor:#1a1a1a;\nborder-color:#cfd6de;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler:not(.activeTitle):hover{\ncolor:#0069b4;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler:not(.activeTitle):hover .toggle_icon, #top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler:not(.activeTitle):hover .toggle_icon *{\nborder-color:#0069b4 !important;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler .toggle_icon{\ncolor:#cfd6de;\nborder-color:#cfd6de;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler .toggle_icon > span{\ncolor:#cfd6de;\nborder-color:#cfd6de;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler.activeTitle .toggle_icon, #top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd p.toggler.activeTitle .toggle_icon > span{\ncolor:#0069b4;\nborder-color:#0069b4;\n}\n#top .togglecontainer.av-mosdjkhs-701876773a4ba24d8be2728da1c252cd .toggle_wrap .toggle_content{\ncolor:#1a1a1a;\nborder-color:#cfd6de;\n}\n<\/style>\n<div  class='togglecontainer av-mosdjkhs-701876773a4ba24d8be2728da1c252cd av-elegant-toggle  avia-builder-el-29  el_after_av_textblock  avia-builder-el-last  toggle_close_all'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/FAQPage\" >\n<section class='av_toggle_section av-mosdgyvv-97b93c3513305350ef5a75acdfc80402'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-faq-zahnradpumpe-druckbegrenzungsventil' data-fake-id='#faq-zahnradpumpe-druckbegrenzungsventil' class='toggler  av-title-above av-inherit-border-color'  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='faq-zahnradpumpe-druckbegrenzungsventil' data-slide-speed=\"200\" data-title=\"Wann braucht eine Zahnradpumpe ein Druckbegrenzungsventil?\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: Wann braucht eine Zahnradpumpe ein Druckbegrenzungsventil?\" data-aria_expanded=\"Click to collapse: Wann braucht eine Zahnradpumpe ein Druckbegrenzungsventil?\">When does a gear pump need a pressure relief valve?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='faq-zahnradpumpe-druckbegrenzungsventil' aria-labelledby='toggle-faq-zahnradpumpe-druckbegrenzungsventil' role='region' class='toggle_wrap  av-title-above'   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color av-inherit-border-color'  itemprop=\"text\" ><p data-start=\"3940\" data-end=\"4176\">A gear pump should be protected against excessive pressure, as it is a positive displacement pump and will continue to deliver fluid if the discharge side becomes blocked or the back pressure rises sharply. A pressure relief valve relieves pressure in the system when the set opening pressure is reached.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mosdgyvv-90ad543a1ad83075340f154a62d76d15'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-faq-unterschied-db-fu-du' data-fake-id='#faq-unterschied-db-fu-du' class='toggler  av-title-above av-inherit-border-color'  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='faq-unterschied-db-fu-du' data-slide-speed=\"200\" data-title=\"Was ist der Unterschied zwischen DB und F..U\/DU?\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: Was ist der Unterschied zwischen DB und F..U\/DU?\" data-aria_expanded=\"Click to collapse: Was ist der Unterschied zwischen DB und F..U\/DU?\">What is the difference between DB and F..U\/DU?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='faq-unterschied-db-fu-du' aria-labelledby='toggle-faq-unterschied-db-fu-du' role='region' class='toggle_wrap  av-title-above'   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color av-inherit-border-color'  itemprop=\"text\" ><p data-start=\"3940\" data-end=\"4176\">The DB series is an external pressure relief valve designed for installation in piping or equipment. F..U\/DU is a gear pump from the F or D series with an integrated safety valve in the pump cover.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mosdgyvv-522b8fc8e9a03d9821770edb04e03029'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-faq-externes-druckbegrenzungsventil' data-fake-id='#faq-externes-druckbegrenzungsventil' class='toggler  av-title-above av-inherit-border-color'  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='faq-externes-druckbegrenzungsventil' data-slide-speed=\"200\" data-title=\"Wann ist ein externes Druckbegrenzungsventil sinnvoll?\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: Wann ist ein externes Druckbegrenzungsventil sinnvoll?\" data-aria_expanded=\"Click to collapse: Wann ist ein externes Druckbegrenzungsventil sinnvoll?\">When is an external pressure relief valve recommended?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='faq-externes-druckbegrenzungsventil' aria-labelledby='toggle-faq-externes-druckbegrenzungsventil' role='region' class='toggle_wrap  av-title-above'   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color av-inherit-border-color'  itemprop=\"text\" ><p data-start=\"3940\" data-end=\"4176\">An external pressure relief valve is useful when the pressure relief needs to be incorporated into the piping or the unit independently of the pump. It offers greater flexibility during installation and can be designed for higher flow rates and pressure ranges.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mosdgyvv-0a6651ac322008ccc603ed905afc3859'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-faq-integriertes-sicherheitsventil-zahnradpumpe' data-fake-id='#faq-integriertes-sicherheitsventil-zahnradpumpe' class='toggler  av-title-above av-inherit-border-color'  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='faq-integriertes-sicherheitsventil-zahnradpumpe' data-slide-speed=\"200\" data-title=\"Wann ist ein integriertes Sicherheitsventil sinnvoll?\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: Wann ist ein integriertes Sicherheitsventil sinnvoll?\" data-aria_expanded=\"Click to collapse: Wann ist ein integriertes Sicherheitsventil sinnvoll?\">When is an integrated safety valve a good idea?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='faq-integriertes-sicherheitsventil-zahnradpumpe' aria-labelledby='toggle-faq-integriertes-sicherheitsventil-zahnradpumpe' role='region' class='toggle_wrap  av-title-above'   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color av-inherit-border-color'  itemprop=\"text\" ><p data-start=\"3940\" data-end=\"4176\">An integrated safety valve is a good choice when the pressure relief mechanism needs to be located directly in the pump cover of the gear pump. This design is particularly compact and is suitable for F and D pumps, provided the appropriate pressure setting range is sufficient.<\/p>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-mosdgyvv-90df4db5628d6c09a0048853ee8e92d9'  itemscope=\"itemscope\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-faq-druckbegrenzungsventil-medien' data-fake-id='#faq-druckbegrenzungsventil-medien' class='toggler  av-title-above av-inherit-border-color'  itemprop=\"name\"  role='tab' tabindex='0' aria-controls='faq-druckbegrenzungsventil-medien' data-slide-speed=\"200\" data-title=\"F\u00fcr welche Medien eignen sich die Druckbegrenzungsventile?\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: F\u00fcr welche Medien eignen sich die Druckbegrenzungsventile?\" data-aria_expanded=\"Click to collapse: F\u00fcr welche Medien eignen sich die Druckbegrenzungsventile?\">For which media are pressure relief valves suitable?<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='faq-druckbegrenzungsventil-medien' aria-labelledby='toggle-faq-druckbegrenzungsventil-medien' role='region' class='toggle_wrap  av-title-above'   itemscope=\"itemscope\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" ><div class='toggle_content invers-color av-inherit-border-color'  itemprop=\"text\" ><p data-start=\"3940\" data-end=\"4176\">Suitability depends on the medium, viscosity, temperature, and seal. Typical media include oils, lubricants, emulsions, water-glycol mixtures, diesel, heating oil, as well as paints and coatings. These media are also listed on the product pages for the valve series.<\/p>\n<\/div><\/div><\/div><\/section>\n<\/div><\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":8172,"parent":2270,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-3912","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Druckbegrenzungsventile f\u00fcr Zahnradpumpen | Linn-Pumpen<\/title>\n<meta name=\"description\" content=\"Druckbegrenzungsventile und integrierte Sicherheitsventile f\u00fcr Zahnradpumpen. 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