{"id":29316,"date":"2025-06-13T11:23:24","date_gmt":"2025-06-13T11:23:24","guid":{"rendered":"https:\/\/thesiseng.gr\/portfolio\/gas-tightness-certificate\/"},"modified":"2025-07-07T14:20:43","modified_gmt":"2025-07-07T14:20:43","slug":"gas-tightness-certificate","status":"publish","type":"portfolio","link":"https:\/\/thesiseng.gr\/en\/portfolio\/gas-tightness-certificate\/","title":{"rendered":"Gas Tightness Certificate"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"29316\" class=\"elementor elementor-29316 elementor-27828\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-bc116bc wd-section-stretch e-flex e-con-boxed e-con e-parent\" data-id=\"bc116bc\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50f1179 elementor-widget 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class=\"wd-negative-gap elementor-element elementor-element-6db7ff10 e-flex e-con-boxed e-con e-parent\" data-id=\"6db7ff10\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6fd3c6c e-con-full e-flex e-con e-child\" data-id=\"6fd3c6c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4bfb5f59 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"4bfb5f59\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-default wd-title-style-default wd-title-size-default text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h1 class=\"woodmart-title-container title wd-fontsize-l\">Gas Tightness Certificate <\/h1> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf8cf95 elementor-widget elementor-widget-wd_text_block\" data-id=\"bf8cf95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_text_block.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"wd-text-block reset-last-child text-left\">\n\t\t\t\n\t\t\t<p>The <strong><b>Gas Tightness Certificate<\/b><\/strong> is an official document issued by <strong><b>a licensed and certified natural gas technician<\/b><\/strong> after conducting a thorough tightness test on the internal and\/or external gas piping network of the installation.<\/p><p><strong><b>Purpose and Importance of the Certificate<\/b><\/strong><\/p><p>The purpose of the Gas Tightness Certificate is to confirm that the gas piping network, whether internal or external, is f<strong><b>ree from leaks<\/b><\/strong> and meets the strict safety standards imposed by <strong><b>national laws and technical regulations.<\/b><\/strong><\/p><p>The certificate is issued after rigorous testing is conducted using specialized measuring instruments and procedures, such as pressure and leak-tightness tests. It guarantees that the gas installation is completely safe for use and complies with all regulatory requirements and safety standards. <\/p><p><strong><b>Responsibilities Related to the Certificate<\/b><\/strong><\/p><p>The issuance of the Gas Tightness Certificate is mandatory in the following situations:<\/p><ul><li><b><\/b><strong><b>New Natural Gas Installations<\/b><\/strong>: To verify that the piping system complies with all required safety specifications during the initial installation phase.<\/li><li><b><\/b><strong><b>Connections to Natural Gas Providers<\/b><\/strong>: Required before activating the gas supply, in order to ensure the tightness and safety of the piping network<\/li><li><b><\/b><strong><b>Modifications or Repairs to the Network<\/b><\/strong>: Required when repairs or alterations are made to the existing natural gas piping system.<\/li><li><b><\/b><strong><b>Disconnection or Reconnection Requests<\/b><\/strong>: When reconnection of the natural gas supply is required, a leak-tightness inspection must be carried out and a Gas Tightness Certificate must be issued.<\/li><\/ul><p><strong><b>Issuance Procedure for the Gas Tightness Certificate<\/b><\/strong><\/p><p>The procedure for issuing the Gas Tightness Certificate includes the following steps:<\/p><ol><li><b><\/b><strong><b>On-site inspection of the installation c<\/b><\/strong>onducted by a qualified and licensed technician specialized in natural gas systems.<\/li><li><b><\/b><strong><b>Leak-tightness testing through pressure tests:<\/b><\/strong> performed to detect any potential leaks in the gas piping network.<\/li><li><b><\/b><strong><b>Preparation and signing of the technical report<\/b><\/strong> carried out by the responsible engineer, including the results of all inspections and tests.<\/li><li><b><\/b><strong><b>Issuance of the Gas Tightness Certificate<\/b><\/strong> and delivery to the property owner or installation supervisor<\/li><\/ol><p>The Gas Tightness Certificate bears the signature and stamp of the authorized technician, ensuring its validity and compliance with safety regulations and industry standards.<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-65f14a02 e-con-full e-flex e-con e-child\" data-id=\"65f14a02\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-64de7cb1 elementor-widget elementor-widget-wd_mega_menu\" data-id=\"64de7cb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_mega_menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"wd-menu widget_nav_mega_menu\">\n\t\t\t\t\t\t\t<h5 class=\"widget-title color-scheme-\">\n\t\t\t\t\tEnvironment, Energy &amp; Security\t\t\t\t<\/h5>\n\t\t\t\t\t\t<ul id=\"menu-perivallon-energeia-asfaleia\" class=\"menu wd-nav wd-nav-vertical wd-design-default wd-gap-\"><li 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Certificate is an official document issued by a licensed and certified natural gas 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