{"id":6086,"date":"2026-08-21T13:44:30","date_gmt":"2026-08-21T12:44:30","guid":{"rendered":"https://vikingjohnson.com/cs-cz/technical-design/pipe-end-preparation/"},"modified":"2026-10-09T08:38:25","modified_gmt":"2026-10-09T07:38:25","slug":"pipe-end-preparation","status":"publish","type":"technical_design","link":"https://www.vikingjohnson.com/cs-cz/technical-design/pipe-end-preparation/","title":{"rendered":"Pipe End Preparation"},"content":{"rendered":"\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group alignwide is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-5dc111c9 wp-block-group-is-layout-constrained\">\n<p class=\"mb-sm wp-block-paragraph\"><strong>Critical Dimensions L &amp; M on Pipe End:</strong></p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aebb9b9c246c&quot;}\" data-wp-interactive=\"core/image\" data-wp-key=\"6aebb9b9c246c\" class=\"wp-block-image alignwide size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-1024x576.jpg\" alt=\"\" class=\"wp-image-6050\" srcset=\"https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-1024x576.jpg 1024w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-300x169.jpg 300w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-768x432.jpg 768w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-1536x864.jpg 1536w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-170x96.jpg 170w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-340x191.jpg 340w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-680x383.jpg 680w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-520x293.jpg 520w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-1040x585.jpg 1040w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-640x360.jpg 640w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation-1280x720.jpg 1280w, https://www.vikingjohnson.com/wp-content/uploads/2026/08/Pipe_End_Preparation.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" /><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" />\n\t\t\t</svg>\n\t\t</button></figure>\n</div>\n</div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"></div>\n</div>\n\n\n\n<p class=\"alignwide mb-sm wp-block-paragraph\">If the pressure rating for the fitting is to be maintained, there are two critical dimensions from the pipe end that must be considered: &#8211;</p>\n\n\n\n<p class=\"alignwide mb-sm wp-block-paragraph\">Dimension L (applies to all Viking Johnson products), is: &#8211;</p>\n\n\n<div class=\"wp-block-wrapper wp-block-wrapper-core/list\">\n<ul class=\"wp-block-list is-style-bullet\">\n<li class=\"mb-sm\">The distance back from the end of the pipe where the gasket will be located, which must: &#8211;<div class=\"wp-block-wrapper wp-block-wrapper-core/list\">\n<ul class=\"wp-block-list\">\n<li class=\"mb-sm\">Be round, clean, smooth and free from bumps, dents, score marks, flat spots, weld beads etc.</li>\n\n\n\n<li class=\"mb-sm\">Comply with the pipe tolerances in accordance with industry standards / specifications.</li>\n</ul>\n</div></li>\n\n\n\n<li class=\"mb-sm\">The distance back from the end of the pipe from which any pipe wrapping should be removed to permit coupling assembly.</li>\n</ul>\n</div>\n\n\n<p class=\"alignwide mb-sm wp-block-paragraph\">Dimension M (applies only to Viking Johnson Dedicated, QuickFit and FlexLock products) is: &#8211;</p>\n\n\n<div class=\"wp-block-wrapper wp-block-wrapper-core/list\">\n<ul class=\"wp-block-list is-style-bullet\">\n<li class=\"mb-sm\">The minimum distance any wrapping must be cut back or obstructions removed to permit a coupling to fully slide onto a pipe end.</li>\n\n\n\n<li class=\"mb-sm\">Only applicable to Viking Johnson dedicated, QuickFit and FlexLock ranges, as the bore of wide tolerance fittings will usually accommodate any wrappings applied to pipes.</li>\n</ul>\n</div>\n\n\n<p class=\"alignwide mb-sm wp-block-paragraph\">The above applies equally to Viking Johnson Dedicated Couplings with or without locating plugs.</p>\n\n\n\n<figure class=\"wp-block-table alignwide\"><table><thead><tr><th>Product</th><th>Sleeve Length</th><th>Dimension L<br>Normal Coupling Assembly</th><th>Dimension M<br>For Closing Connections</th></tr></thead><tbody><tr><td>VJ Dedicated</td><td>100mm</td><td>100mm</td><td>150mm</td></tr><tr><td>VJ Dedicated</td><td>150mm</td><td>150mm</td><td>225mm</td></tr><tr><td>VJ Dedicated</td><td>178mm</td><td>150mm</td><td>250mm</td></tr><tr><td>VJ Dedicated</td><td>254mm</td><td>200mm</td><td>300mm</td></tr><tr><td>QuickFit</td><td>100mm</td><td>100mm</td><td>150mm</td></tr><tr><td>MaxiFit</td><td>95mm</td><td>100mm</td><td>N/A</td></tr><tr><td>MaxiFit</td><td>100mm</td><td>100mm</td><td>N/A</td></tr><tr><td>MaxiFit</td><td>130mm</td><td>100mm</td><td>N/A</td></tr><tr><td>MaxiFit</td><td>243mm</td><td>270mm</td><td>N/A</td></tr><tr><td>MaxiFitXtra</td><td>190mm</td><td>210mm</td><td>N/A</td></tr><tr><td>MaxiFitXtra</td><td>200mm</td><td>220mm</td><td>N/A</td></tr><tr><td>MaxiFitXtra</td><td>250mm</td><td>250mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>144mm</td><td>170mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>170mm</td><td>200mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>180mm</td><td>200mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>213mm</td><td>240mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>215mm</td><td>240mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>220mm</td><td>250mm</td><td>N/A</td></tr><tr><td>MegaFit</td><td>300mm</td><td>330mm</td><td>N/A</td></tr><tr><td>FlexLock</td><td>80mm</td><td>100mm</td><td>150mm</td></tr><tr><td>FlexLock</td><td>100mm</td><td>100mm</td><td>150mm</td></tr><tr><td>FlexLock</td><td>115mm</td><td>110mm</td><td>150mm</td></tr><tr><td>FlexLock</td><td>178mm</td><td>150mm</td><td>250mm</td></tr></tbody></table><figcaption class=\"wp-element-caption\">Critical Dimensions L &amp; M on Pipe End</figcaption></figure>\n\n\n\n<p class=\"mb-sm wp-block-paragraph\"></p>\n","protected":false},"excerpt":{"rendered":"<p>Critical Dimensions L &amp; M on Pipe End: If the pressure rating for the fitting is to be maintained, there&#8230;</p>\n","protected":false},"menu_order":11,"template":"","designknowledge":[366],"class_list":["post-6086","technical_design","type-technical_design","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https://yoast.com/product/yoast-seo-wordpress/ -->\n<title>Pipe End Preparation - Viking Johnson</title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" />\n<link rel=\"canonical\" href=\"https://www.vikingjohnson.com/cs-cz/technical-design/pipe-end-preparation/\" />\n<meta property=\"og:locale\" content=\"cs_CZ\" />\n<meta property=\"og:type\" content=\"article\" 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