{"id":8185,"date":"2023-10-02T12:37:56","date_gmt":"2023-10-02T10:37:56","guid":{"rendered":"https:\/\/www.pronal.com\/projets\/setting-up-of-a-inflatable-plugging-system-to-carry-out-a-reheater-hydraulic-test\/"},"modified":"2023-10-02T16:14:24","modified_gmt":"2023-10-02T14:14:24","slug":"setting-up-of-a-inflatable-plugging-system-to-carry-out-a-reheater-hydraulic-test","status":"publish","type":"projets","link":"https:\/\/www.pronal.com\/en\/projets\/setting-up-of-a-inflatable-plugging-system-to-carry-out-a-reheater-hydraulic-test\/","title":{"rendered":"SETTING UP OF AN INFLATABLE SYSTEM FOR GSS HYDRAULIC TESTING"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row css_animation=&#8221;left-to-right&#8221;][vc_column width=&#8221;2\/3&#8243;][vc_column_text]<\/p>\n<h2><span style=\"color: #242b57;\">CONSTRAINTS FOR TESTING GSS CALANDERS FOR NUCLEAR POWER PLANTS<\/span><\/h2>\n<p>The problems were :<\/p>\n<ul>\n<li><span style=\"color: #242b57;\"><strong>The pressure of the test at 25 bars<\/strong><\/span><\/li>\n<li><span style=\"color: #242b57;\"><strong>A large diameter of the pipes : \u00d8946 mm and \u00d81176 mm<\/strong><\/span><\/li>\n<li><span style=\"color: #242b57;\"><strong>The \u00d8400 mm manhole for the \u00d81176 mm<\/strong><\/span><\/li>\n<\/ul>\n<p>Until now, the <a href=\"https:\/\/www.edf.fr\/en\">company EDF<\/a> had to cut the pipes to install caps (welded metal plugs) and carry out X-ray shots to check the conformity and the tightness of the welds.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;8149&#8243; img_size=&#8221;large&#8221;][\/vc_column][\/vc_row][vc_row css_animation=&#8221;right-to-left&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span style=\"color: #242b57;\">Pronal solution : INFLATABLE SYSTEM FOR GSS HYDRAULIC TESTING<\/span><\/h2>\n<p>To meet this need, Pronal supplied OHP <a href=\"https:\/\/www.pronal.com\/en\/produit\/inflatable-pipe-plugs\/nuclear\/high-pressure-stoppers\/\">high pressure inflatable pipe plugs<\/a> for the \u00d8946 mm pipes. For the \u00d81176 mm manhole, an <a href=\"https:\/\/www.pronal.com\/en\/produit\/inflatable-pipe-plugs\/nuclear\/gss-hydraulic-testing\/\">inflatable system for GSS hydraulic testing<\/a> were supplied. The installation and commissioning on site of these flexible solutions for testing the GSS calenders was handled by our service teams.<\/p>\n<p>After the hydraulic test was completed, the used pneumatic plugs could be repackaged and stored in our premises until the next test.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;8139&#8243; img_size=&#8221;large&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;8134&#8243; img_size=&#8221;large&#8221;][\/vc_column][\/vc_row][vc_row css_animation=&#8221;left-to-right&#8221;][vc_column][vc_column_text]<\/p>\n<h3>Conclusion<\/h3>\n<p>By using this inflatable sealing system, EDF was able to :<\/p>\n<ul>\n<li>preserve its pipes (no more cutting to install the caps),<\/li>\n<li>facilitate the hydraulic test (no more radio shots to check the welds),<\/li>\n<li>save time, i.e. 30 days per unit shutdown,<\/li>\n<li>and reduce the costs associated with the hydraulic test.<\/li>\n<\/ul>\n<p>It takes 2 to 3 days to install a set of 3 x 920 plugs and 2 x 1200 plugs (required to test a GSS), saving the operator about 30 days of outage time.<\/p>\n<p>With this solution, Pronal won the <a href=\"https:\/\/www.edf.fr\/edf-recrute\/nos-actualites-rh\/challenge-du-nucleaire-un-moment-incontournable-de-l-innovation\">DPN (nuclear fleet management) challenge<\/a> in 2014.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row_content_no_spaces&#8221;][vc_column][vc_pr_numbers][vc_pr_numbers_item number=&#8221;25 bars&#8221; description=&#8221;Testing pressure&#8221;][\/vc_pr_numbers_item][vc_pr_numbers_item number=&#8221;\u00d8946 mm&#8221; description=&#8221;OHP inflatable stopper&#8221;][\/vc_pr_numbers_item][vc_pr_numbers_item number=&#8221;\u00d81176 mm&#8221; description=&#8221;inflatable ring cushion&#8221;][\/vc_pr_numbers_item][\/vc_pr_numbers][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>EDF contact Pronal to install and activate an inflatable pipe plugs set-up to carry out a reheater hydraulic test.<\/p>\n","protected":false},"featured_media":8136,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"project_categories":[182],"class_list":["post-8185","projets","type-projets","status-publish","has-post-thumbnail","hentry","project_categories-to-plug"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - 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