{"id":768,"date":"2022-07-14T17:27:43","date_gmt":"2022-07-14T21:27:43","guid":{"rendered":"https:\/\/public.ksc.nasa.gov\/propellants\/?page_id=768"},"modified":"2024-07-19T08:31:12","modified_gmt":"2024-07-19T12:31:12","slug":"genericpropellanttransferunit","status":"publish","type":"page","link":"https:\/\/public.ksc.nasa.gov\/propellants\/genericpropellanttransferunit\/","title":{"rendered":"Generic Propellant Transfer Unit"},"content":{"rendered":"\n
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<\/span>\"Kennedy
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Generic Propellant Transfer Unit (GPTU)<\/h2><\/div>\n<\/div><\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n
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GPTUs are multipurpose portable tanks. They are pressure loaded\/offloaded using either helium or nitrogen as a pressurant gas. They can be used to directly load spacecraft when connected to a propellant control panel. GPTUs are made of 304L Stainless Steel and are insulated by virtue of there double-tank design (tank-in-a-tank like a cryogenic dewar). There are ten GPTUs and they are routinely available in MMH, MPH, HPH, and N2O4 low iron MON-3 service. GPTUs are available to commercial and DOD programs on a non-interference basis.<\/p>\n<\/div>\n<\/div><\/section>\n\n\n\n
Equipment<\/strong><\/td>Generic Propellant Transfer Unit (GPTU)<\/td><\/tr>
Dimensions<\/strong><\/td>7′ 10-3\/4″ X 5’4″ Diameter<\/td><\/tr>
Weight<\/strong><\/td>5720 lb tare, 11770 lb w\/N204, 9920 lb w\/Hydrazine, 9370 lb w\/MMH<\/td><\/tr>
Capacity<\/strong><\/td>500 gallons with 10% ullage<\/td><\/tr>
Quantity<\/strong><\/td>10 tanks<\/td><\/tr>
Connections<\/strong><\/td>Fill\/Drain 1.5″ KC male or reduced to 0.5″ KC (typical)<\/td><\/tr>
Pressure\/Vent<\/strong><\/td>3\/4″ KC male or reduced to 0.5″ KC (typical)<\/td><\/tr>
DOT Code<\/strong><\/td>DOT 51 portable tank with DOT-E-10887 for N2O4 service.<\/a><\/td><\/tr>
MOP<\/strong><\/td>240 psig<\/td><\/tr>
Operating Pressure<\/strong><\/td>Full vacuum to 50 psig<\/td><\/tr>
PRV Setting<\/strong><\/td>286 psig<\/td><\/tr>
Approved Fluids<\/strong><\/td>Hydrazine family fuels, N2O4, and related solutions. Helium or Nitrogen gas used for pressurant.<\/td><\/tr>
Other Features<\/strong><\/td>Lift with crane or forklift. Built-in load cell weighing system. Transport on special trailer. Separate work platform available.<\/td><\/tr><\/tbody><\/table>\n\n\n\n
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Adobe Acrobat Reader<\/a><\/p>\n<\/div>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"

GPTUs are multipurpose portable tanks. They are pressure loaded\/offloaded using either helium or nitrogen as a pressurant gas. They can be used to directly load spacecraft when connected to a propellant control panel. GPTUs are made of 304L Stainless Steel and are insulated by virtue of there double-tank design (tank-in-a-tank like a cryogenic dewar). There […]<\/p>\n","protected":false},"author":31,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","_lmt_disableupdate":"no","_lmt_disable":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-768","page","type-page","status-publish","hentry"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","pp_force_visibility":null,"pp_subpost_visibility":null,"pp_inherited_force_visibility":null,"pp_inherited_subpost_visibility":null,"pp_post_mime_type":"","uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"gform-image-choice-sm":false,"gform-image-choice-md":false,"gform-image-choice-lg":false},"uagb_author_info":{"display_name":"James Morrison","author_link":"https:\/\/public.ksc.nasa.gov\/propellants\/author\/jmorrison\/"},"uagb_comment_info":0,"uagb_excerpt":"GPTUs are multipurpose portable tanks. They are pressure loaded\/offloaded using either helium or nitrogen as a pressurant gas. They can be used to directly load spacecraft when connected to a propellant control panel. GPTUs are made of 304L Stainless Steel and are insulated by virtue of there double-tank design (tank-in-a-tank like a cryogenic dewar). There…","coauthors":[],"author_meta":{"author_link":"https:\/\/public.ksc.nasa.gov\/propellants\/author\/jmorrison\/","display_name":"James Morrison"},"relative_dates":{"created":"Posted 4 years ago","modified":"Updated 2 years ago"},"absolute_dates":{"created":"Posted on July 14, 2022","modified":"Updated on July 19, 2024"},"absolute_dates_time":{"created":"Posted on July 14, 2022 5:27 pm","modified":"Updated on July 19, 2024 8:31 am"},"featured_img_caption":"","featured_img":false,"series_order":"","_links":{"self":[{"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/pages\/768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/comments?post=768"}],"version-history":[{"count":15,"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/pages\/768\/revisions"}],"predecessor-version":[{"id":2233,"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/pages\/768\/revisions\/2233"}],"wp:attachment":[{"href":"https:\/\/public.ksc.nasa.gov\/propellants\/wp-json\/wp\/v2\/media?parent=768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}