{"id":7120,"date":"2026-01-09T12:59:10","date_gmt":"2026-01-09T11:59:10","guid":{"rendered":"https:\/\/cgh.q.test.ideo.pl\/?post_type=product&p=7120"},"modified":"2026-04-20T02:18:39","modified_gmt":"2026-04-20T00:18:39","slug":"drive-over-manholes-type-na2-na3-qna4-2","status":"publish","type":"product","link":"https:\/\/cgh-group.com\/en\/products\/fuel\/fuel-bases\/accessories-and-tank-equipment\/drive-over-manholes-type-na2-na3-qna4-2\/","title":{"rendered":"Drive-over steel manholes Type NA2, NA3, QNA4"},"content":{"rendered":"
\n
\n
\n
\n

\n Advantages of NA steel manholes\n <\/h2>\n <\/header>\n \n \n
\n
\n
\n \"\"\n <\/div>\n \n
\n

Robust construction<\/strong><\/p>\n

The manholes are made of high-rigidity steel elements. They easily bear loads from wheeled traffic and the weight of concrete covers. <\/p>\n\n <\/div>\n <\/article>\n

\n
\n \"\"\n <\/div>\n \n
\n

Various anti-corrosion protection systems<\/strong><\/p>\n

Available variants (choice depends on the working environment and investor requirements): hot-dip galvanising, PUR coating, primer paint<\/p>\n\n <\/div>\n <\/article>\n

\n
\n \"\"\n <\/div>\n \n
\n

Compatibility with drive-over covers
\n<\/strong><\/p>\n

The design allows the installation of the most popular covers available on the market, including:<\/p>\n

    \n
  • Watertight drive-over manhole cover with concrete surround 250 kN (class C) \u2013 920\u00d7920\u00d7250 mm<\/li>\n
  • Watertight drive-over manhole cover with concrete surround 250 kN (class C) \u2013 1400\u00d7740\u00d7250 mm<\/li>\n
  • Watertight cover 400 kN (WAD III) \u2013 920\u00d7920\u00d7250 mm<\/li>\n<\/ul>\n

    This facilitates replacement or selection of equipment for specific load requirements.<\/p>\n\n <\/div>\n <\/article>\n

    \n \n
    \n

    Simple installation on the tank<\/strong><\/p>\n

    The manholes are bolted to the manhole collar, which reduces earthworks and shortens installation time.<\/p>\n\n <\/div>\n <\/article>\n

    \n \n
    \n

    Three available versions:<\/strong><\/p>\n

      \n
    • NA2: 1400\u00d71200 mm, height 950 mm, internal opening 920\u00d7920 mm<\/li>\n
    • NA3: 1400\u00d71200 mm, height 950 mm, internal opening 1400\u00d7740 mm<\/li>\n
    • QNA4: 1200\u00d71200 mm, height 950 mm, internal opening 920\u00d7920 mm<\/li>\n<\/ul>\n\n <\/div>\n <\/article>\n <\/div>\n <\/div>\n <\/section>\n<\/div>\n\n\n\n
      \n
      \n \n
      \n
      \n

      \n Intended use\n <\/h2>\n <\/header>\n \n \n
      \n
      \n
      \n \"\"\n <\/div>\n \n
      \n

      Gaining access to inspection hatches of underground tanks located in the traffic lane<\/p>\n\n <\/div>\n <\/article>\n

      \n
      \n \"\"\n <\/div>\n \n
      \n

      Installation of drive-over covers from various manufacturers<\/p>\n\n <\/div>\n <\/article>\n

      \n \n
      \n

      Protection of the tank and infrastructure against loads resulting from vehicle traffic<\/p>\n\n <\/div>\n <\/article>\n

      \n \n
      \n

      Use in locations requiring high durability and resistance to environmental conditions<\/p>\n\n <\/div>\n <\/article>\n

      \n \n
      \n

      For installation on tanks equipped with manhole collars of 1400\u00d71200 mm and 1200\u00d71200 mm.<\/p>\n\n <\/div>\n <\/article>\n <\/div>\n <\/div>\n <\/section>\n<\/div>\n\n\n\n

      \n
      \n

      Dane techniczne<\/h2>\n
      \n
      \n \n
      \n
      \n <\/div>\n\n <\/div>\n <\/section>\n\n <\/div>\n\n
      \n
      \n\n

      Drive-over manhole NA2<\/strong>
      \u2022 1400\u00d71200 mm
      \u2022 height 950 mm
      \u2022 internal opening 920\u00d7920 mm<\/p>\n\n\n\n

      Drive-over manhole NA3<\/strong>
      \u2022 1400\u00d71200 mm
      \u2022 height 950 mm
      \u2022 internal opening 1400\u00d7740 mm<\/p>\n\n\n\n

      Drive-over manhole QNA4<\/strong>
      \u2022 1200\u00d71200 mm
      \u2022 height 950 mm
      \u2022 internal opening 920\u00d7920 mm<\/p>\n\n<\/div>\n <\/div>\n <\/div>\n <\/section>\n<\/div>\n\n\n\n","protected":false},"featured_media":8132,"parent":6514,"menu_order":0,"template":"","class_list":["post-7120","product","type-product","status-publish","has-post-thumbnail","hentry"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-scaled.webp",2560,1429,false],"thumbnail":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-150x150.webp",150,150,true],"medium":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-300x167.webp",300,167,true],"medium_large":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-768x429.webp",768,429,true],"large":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-1024x572.webp",1024,572,true],"1536x1536":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-1536x857.webp",1536,857,true],"2048x2048":["https:\/\/cgh-group.com\/wp-content\/uploads\/2025\/12\/Studzienki-stalowe-najazdowe-2048x1143.webp",2048,1143,true]},"uagb_author_info":{"display_name":"Robert Chru\u015bci\u0144ski","author_link":"https:\/\/cgh-group.com\/en\/author\/"},"uagb_comment_info":0,"uagb_excerpt":null,"_links":{"self":[{"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/product\/7120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/types\/product"}],"up":[{"embeddable":true,"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/product\/6514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/media\/8132"}],"wp:attachment":[{"href":"https:\/\/cgh-group.com\/en\/wp-json\/wp\/v2\/media?parent=7120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}