{"id":45772,"date":"2022-05-20T08:52:07","date_gmt":"2022-05-20T08:52:07","guid":{"rendered":"https:\/\/www.fhtvalves.com\/vannes-a-boule-flottantes-a-siege-souple\/"},"modified":"2026-04-23T08:00:05","modified_gmt":"2026-04-23T08:00:05","slug":"vannes-a-boule-flottantes-a-siege-souple","status":"publish","type":"page","link":"https:\/\/www.fhtvalves.com\/fr\/vannes-a-boule-flottantes-a-siege-souple\/","title":{"rendered":"Vannes \u00e0 boule flottantes \u00e0 si\u00e8ge souple"},"content":{"rendered":"

[et_pb_section fb_built=\u00a0\u00bb1″ custom_padding_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#edf2f6″ background_color_gradient_direction=\u00a0\u00bb87deg\u00a0\u00bb background_color_gradient_start=\u00a0\u00bb#ffffff\u00a0\u00bb background_color_gradient_end=\u00a0\u00bb#dbdbdb\u00a0\u00bb background_enable_image=\u00a0\u00bboff\u00a0\u00bb background_size=\u00a0\u00bbinitial\u00a0\u00bb background_position=\u00a0\u00bbbottom_right\u00a0\u00bb custom_margin=\u00a0\u00bb0px||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb0px||0vw||false|false\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb||22vw||false|false\u00a0\u00bb custom_padding_phone=\u00a0\u00bb||0vw||false|false\u00a0\u00bb animation_style=\u00a0\u00bbfade\u00a0\u00bb animation_direction=\u00a0\u00bbright\u00a0\u00bb background_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb background_color_gradient_direction_tablet=\u00a0\u00bb151deg\u00a0\u00bb background_color_gradient_stops_tablet=\u00a0\u00bb#ffffff 29%|#dbdbdb 100%\u00a0\u00bb background_color_gradient_stops_phone=\u00a0\u00bb#ffffff 52%|#dbdbdb 100%\u00a0\u00bb background_color_gradient_start_position_tablet=\u00a0\u00bb29%\u00a0\u00bb background_color_gradient_start_position_phone=\u00a0\u00bb52%\u00a0\u00bb background_size_phone=\u00a0\u00bbcontain\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb92%\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb65px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.16″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbTexto\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bbRoboto|300|||||||\u00a0\u00bb text_font_size=\u00a0\u00bb16px\u00a0\u00bb header_font=\u00a0\u00bbRoboto|300||on|||||\u00a0\u00bb header_2_font=\u00a0\u00bbRoboto|700||on|||||\u00a0\u00bb header_2_text_align=\u00a0\u00bbleft\u00a0\u00bb header_2_text_color=\u00a0\u00bbgcid-455505a9-cb69-4b3d-b013-deb8201310fc\u00a0\u00bb header_2_font_size=\u00a0\u00bb31px\u00a0\u00bb header_3_font=\u00a0\u00bbRoboto||||||||\u00a0\u00bb header_3_text_color=\u00a0\u00bb#000000″ header_3_font_size=\u00a0\u00bb26px\u00a0\u00bb width=\u00a0\u00bb800px\u00a0\u00bb max_width=\u00a0\u00bb95%\u00a0\u00bb module_alignment=\u00a0\u00bbcenter\u00a0\u00bb min_height=\u00a0\u00bb100px\u00a0\u00bb custom_margin=\u00a0\u00bb14px||6px|0px|false|false\u00a0\u00bb custom_margin_tablet=\u00a0\u00bb0px||||false|false\u00a0\u00bb custom_margin_phone=\u00a0\u00bb-13px||||false|false\u00a0\u00bb custom_margin_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb custom_padding=\u00a0\u00bb0px|0px|34px|0px|false|false\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb38px|6vh||6vh|false|true\u00a0\u00bb custom_padding_phone=\u00a0\u00bb|2vh||2vh|false|true\u00a0\u00bb custom_padding_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb animation_style=\u00a0\u00bbslide\u00a0\u00bb animation_direction=\u00a0\u00bbleft\u00a0\u00bb header_2_font_size_tablet=\u00a0\u00bb45px\u00a0\u00bb header_2_font_size_phone=\u00a0\u00bb28px\u00a0\u00bb header_2_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb header_3_font_size_tablet=\u00a0\u00bb32px\u00a0\u00bb header_3_font_size_phone=\u00a0\u00bb24px\u00a0\u00bb header_3_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{%22gcid-455505a9-cb69-4b3d-b013-deb8201310fc%22:%91%22header_2_text_color%22,%22header_2_text_color%22,%22header_2_text_color%22%93}\u00a0\u00bb]<\/p>\n

Vannes \u00e0 boule flottantes \u00e0 si\u00e8ge souple<\/h1>\n

Vannes \u00e0 boule industrielles<\/h2>\n

[\/et_pb_text][et_pb_button button_url=\u00a0\u00bbhttps:\/\/www.fhtvalves.com\/wp-content\/uploads\/2025\/02\/data-sheet-DIN-ANSI.pdf\u00a0\u00bb url_new_window=\u00a0\u00bbon\u00a0\u00bb button_text=\u00a0\u00bbANSI & DIN\u00a0\u00bb button_alignment=\u00a0\u00bbleft\u00a0\u00bb module_class=\u00a0\u00bbpopmake-45534″ _builder_version=\u00a0\u00bb4.27.6″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb5px||5px|15px|false|false\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″][\/et_pb_button][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.16″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_code _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb100%\u00a0\u00bb module_alignment=\u00a0\u00bbright\u00a0\u00bb custom_margin=\u00a0\u00bb|0px|0px|0px|false|true\u00a0\u00bb custom_padding=\u00a0\u00bb|0px||0px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]\t

\r\n\t
\r\n\t
\r\n\t\t
\r\n \"\"\r\n \t\t<\/div>\t\r\n\t\t \t\t \t\t
\r\n\t\t \t
\r\n\t\t \t\t\t\t\t \t\t\t\t\t \t\t\"\"\r\n\t\t\t \t\t\"\"\t\t \t\t\t\t \t<\/div>\r\n\t\t <\/div>\r\n\t\t \t\t
\r\n\t\t \t
\r\n\t\t \t\t\t\t\t \t\t\t\t\t \t\t\"\"\r\n\t\t\t \t\t\"\"\t\t \t\t\t\t \t<\/div>\r\n\t\t <\/div>\r\n\t\t \t\t
\r\n\t\t \t
\r\n\t\t \t\t\t\t\t \t\t\t\t\t \t\t\"\"\r\n\t\t\t \t\t\"\"\t\t \t\t\t\t \t<\/div>\r\n\t\t <\/div>\r\n\t\t \t\t
\r\n\t\t \t
\r\n\t\t \t\t\t\t\t \t\t\t\t\t \t\t\"\"\r\n\t\t\t \t\t\"\"\t\t \t\t\t\t \t<\/div>\r\n\t\t <\/div>\r\n\t\t \t\t
\r\n\t\t \t
\r\n\t\t \t\t\t\t\t \t\t\t\t\t \t\t\"\"\r\n\t\t\t \t\t\"\"\t\t \t\t\t\t \t<\/div>\r\n\t\t <\/div>\r\n\t\t \t\t \r\n\t\t \t\t \t\r\n\t <\/div>\r\n\t <\/div>\r\n\t <\/div>\r\n\t[\/et_pb_code][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbTexto\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bbRoboto|300|||||||\u00a0\u00bb text_font_size=\u00a0\u00bb16px\u00a0\u00bb header_text_align=\u00a0\u00bbleft\u00a0\u00bb header_2_font=\u00a0\u00bbRoboto|300|||||||\u00a0\u00bb header_2_text_color=\u00a0\u00bbgcid-455505a9-cb69-4b3d-b013-deb8201310fc\u00a0\u00bb header_2_font_size=\u00a0\u00bb50px\u00a0\u00bb header_3_font=\u00a0\u00bbRoboto||||||||\u00a0\u00bb header_3_text_color=\u00a0\u00bb#000000″ header_3_font_size=\u00a0\u00bb26px\u00a0\u00bb width=\u00a0\u00bb800px\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb module_alignment=\u00a0\u00bbleft\u00a0\u00bb min_height=\u00a0\u00bb100px\u00a0\u00bb custom_margin=\u00a0\u00bb|||-35px|false|false\u00a0\u00bb custom_margin_tablet=\u00a0\u00bb0px||||false|false\u00a0\u00bb custom_margin_phone=\u00a0\u00bb-13px||||false|false\u00a0\u00bb custom_margin_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb custom_padding=\u00a0\u00bb0px|0px||0px|false|false\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb38px|6vh||6vh|false|true\u00a0\u00bb custom_padding_phone=\u00a0\u00bb|2vh||2vh|false|true\u00a0\u00bb custom_padding_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb animation_style=\u00a0\u00bbslide\u00a0\u00bb animation_direction=\u00a0\u00bbleft\u00a0\u00bb header_2_font_size_tablet=\u00a0\u00bb45px\u00a0\u00bb header_2_font_size_phone=\u00a0\u00bb28px\u00a0\u00bb header_2_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb header_3_font_size_tablet=\u00a0\u00bb32px\u00a0\u00bb header_3_font_size_phone=\u00a0\u00bb24px\u00a0\u00bb header_3_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{%22gcid-455505a9-cb69-4b3d-b013-deb8201310fc%22:%91%22header_2_text_color%22,%22header_2_text_color%22,%22header_2_text_color%22%93}\u00a0\u00bb]<\/p>\n

Les vannes \u00e0 boule flottante sont actionn\u00e9es par un axe reli\u00e9 \u00e0 la partie sup\u00e9rieure de la boule et la font pivoter de 90 degr\u00e9s <\/strong>(ce qu’on appelle un quart de tour). \u00c0 mesure que la boule pivote, le passage s’ouvre ou se ferme, lib\u00e9rant ou arr\u00eatant l’\u00e9coulement du fluide. Lorsque la bille tourne sur son axe, la pression du flux pousse la bille contre son si\u00e8ge en aval, cr\u00e9ant ainsi un joint \u00e9tanche. Par cons\u00e9quent, les vannes \u00e0 bille flottante peuvent ne pas assurer une \u00e9tanch\u00e9it\u00e9 aussi efficace dans les applications \u00e0 tr\u00e8s basse pression apr\u00e8s une certaine usure du si\u00e8ge. En effet, la pression peut ne pas \u00eatre suffisante pour pousser la bille contre le si\u00e8ge en aval afin de cr\u00e9er un joint \u00e9tanche. Cependant, dans la plupart des applications, la pression en aval est suffisante pour maintenir une \u00e9tanch\u00e9it\u00e9 herm\u00e9tique bien apr\u00e8s que les si\u00e8ges aient commenc\u00e9 \u00e0 s’user.<\/strong><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.16″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb92%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.16″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbTexto\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bbRoboto|300|||||||\u00a0\u00bb text_font_size=\u00a0\u00bb16px\u00a0\u00bb header_2_font=\u00a0\u00bbRoboto|300|||||||\u00a0\u00bb header_2_text_color=\u00a0\u00bbgcid-455505a9-cb69-4b3d-b013-deb8201310fc\u00a0\u00bb header_2_font_size=\u00a0\u00bb50px\u00a0\u00bb header_3_font=\u00a0\u00bbRoboto||||||||\u00a0\u00bb header_3_text_color=\u00a0\u00bb#000000″ header_3_font_size=\u00a0\u00bb26px\u00a0\u00bb width=\u00a0\u00bb800px\u00a0\u00bb max_width=\u00a0\u00bb95%\u00a0\u00bb module_alignment=\u00a0\u00bbcenter\u00a0\u00bb min_height=\u00a0\u00bb100px\u00a0\u00bb custom_margin=\u00a0\u00bb14px|||0px|false|false\u00a0\u00bb custom_margin_tablet=\u00a0\u00bb0px||||false|false\u00a0\u00bb custom_margin_phone=\u00a0\u00bb-13px||||false|false\u00a0\u00bb custom_margin_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb custom_padding=\u00a0\u00bb0px|0px|34px|0px|false|false\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb38px|6vh||6vh|false|true\u00a0\u00bb custom_padding_phone=\u00a0\u00bb|2vh||2vh|false|true\u00a0\u00bb custom_padding_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb animation_style=\u00a0\u00bbslide\u00a0\u00bb animation_direction=\u00a0\u00bbleft\u00a0\u00bb header_2_font_size_tablet=\u00a0\u00bb45px\u00a0\u00bb header_2_font_size_phone=\u00a0\u00bb28px\u00a0\u00bb header_2_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb header_3_font_size_tablet=\u00a0\u00bb32px\u00a0\u00bb header_3_font_size_phone=\u00a0\u00bb24px\u00a0\u00bb header_3_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{%22gcid-455505a9-cb69-4b3d-b013-deb8201310fc%22:%91%22header_2_text_color%22,%22header_2_text_color%22,%22header_2_text_color%22%93}\u00a0\u00bb]<\/p>\n

SI\u00c8GE MOELLEUX<\/strong><\/h3>\n

Les vannes \u00e0 si\u00e8ge souple ont des surfaces d’\u00e9tanch\u00e9it\u00e9 en mat\u00e9riaux thermoplastiques non m\u00e9talliques tels que le PTFE, le nylon, le PEEK et autres… Elles fonctionnent \u00e0 des temp\u00e9ratures de service inf\u00e9rieures \u00e0 270 \u00b0C (en fonction du mat\u00e9riau d’\u00e9tanch\u00e9it\u00e9). Dans des conditions appropri\u00e9es, les vannes \u00e0 si\u00e8ge souple peuvent offrir un niveau d’\u00e9tanch\u00e9it\u00e9 tr\u00e8s \u00e9lev\u00e9 tout au long de leur dur\u00e9e de vie, g\u00e9n\u00e9ralement sup\u00e9rieur \u00e0 celui d’une vanne m\u00e9tallique classique.<\/strong><\/p>\n

Cependant, les vannes \u00e0 si\u00e8ge souple ne sont pas adapt\u00e9es aux milieux corrosifs, aux fluides de process sales ou abrasifs.<\/strong> Ces conditions peuvent endommager le si\u00e8ge souple et entra\u00eener des fuites. Elles ne peuvent pas supporter les m\u00eames pressions que les vannes \u00e0 si\u00e8ge m\u00e9tallique. Bien que les vannes \u00e0 si\u00e8ge souple soient souvent moins co\u00fbteuses que les vannes \u00e0 si\u00e8ge m\u00e9tallique, ces derni\u00e8res sont g\u00e9n\u00e9ralement plus adapt\u00e9es lorsqu’un service intensif est requis. <\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ disabled_on=\u00a0\u00bboff|off|off\u00a0\u00bb admin_label=\u00a0\u00bbpresupuesto\u00a0\u00bb _builder_version=\u00a0\u00bb4.23.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb use_background_color_gradient=\u00a0\u00bbon\u00a0\u00bb background_color_gradient_direction=\u00a0\u00bb214deg\u00a0\u00bb background_color_gradient_stops=\u00a0\u00bb#ffffff 42%|#dbdbdb 68%\u00a0\u00bb background_color_gradient_start=\u00a0\u00bb#ffffff\u00a0\u00bb background_color_gradient_start_position=\u00a0\u00bb42%\u00a0\u00bb background_color_gradient_end=\u00a0\u00bb#dbdbdb\u00a0\u00bb background_color_gradient_end_position=\u00a0\u00bb68%\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/www.fhtvalves.com\/wp-content\/uploads\/2022\/05\/presus2.jpg\u00a0\u00bb background_position=\u00a0\u00bbcenter_right\u00a0\u00bb background_enable_pattern_style=\u00a0\u00bbon\u00a0\u00bb background_pattern_style=\u00a0\u00bbdiagonal-stripes-2″ background_pattern_color=\u00a0\u00bbrgba(255,255,255,0.36)\u00a0\u00bb background_pattern_transform=\u00a0\u00bbrotate_90_degree\u00a0\u00bb background_pattern_blend_mode=\u00a0\u00bbsoft-light\u00a0\u00bb positioning=\u00a0\u00bbnone\u00a0\u00bb background_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb background_color_gradient_direction_tablet=\u00a0\u00bb151deg\u00a0\u00bb background_color_gradient_stops_tablet=\u00a0\u00bb#ffffff 29%|#dbdbdb 68%\u00a0\u00bb background_color_gradient_stops_phone=\u00a0\u00bb#ffffff 52%|#dbdbdb 68%\u00a0\u00bb background_color_gradient_start_position_tablet=\u00a0\u00bb29%\u00a0\u00bb background_color_gradient_start_position_phone=\u00a0\u00bb52%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ disabled_on=\u00a0\u00bboff|off|off\u00a0\u00bb _builder_version=\u00a0\u00bb4.23.1″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bbrgba(255,255,255,0.54)\u00a0\u00bb border_radii=\u00a0\u00bbon|30px|30px|30px|30px\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.16″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_code disabled_on=\u00a0\u00bbon|on|on\u00a0\u00bb admin_label=\u00a0\u00bbC\u00f3digo\u00a0\u00bb _builder_version=\u00a0\u00bb4.20.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb disabled=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]