{"product_id":"orbital-purge-caps","title":"Orbital Purge Caps | BTH Sales","description":"\u003ch1\u003eOrbital Purge Caps\u003c\/h1\u003e\n\u003cp data-start=\"43\" data-end=\"430\"\u003eThe Orbital Service Purge Caps are innovative external pipe sealing systems designed to improve purge gas efficiency during orbital TIG welding and high-purity pipe fabrication. Manufactured using advanced 3D-printing technology, these purge caps create a secure seal around the outside of the pipe, reducing purge gas consumption while helping produce cleaner, oxidation-free welds.\u003c\/p\u003e\n\u003cp data-start=\"432\" data-end=\"803\"\u003eUnlike traditional internal purge devices, the Purge Caps feature dual TPU air cushion seals that expand evenly around the pipe's exterior when tightened, creating a stable, leak-resistant seal without entering the pipe bore. This design simplifies setup while improving purge gas containment across a wide range of stainless steel tubing and process piping applications.\u003c\/p\u003e\n\u003cp data-start=\"805\" data-end=\"1093\"\u003eAvailable for pipe outside diameters from Ø 6 mm to Ø 323 mm (1\/4\" to 12¾\"), the Orbital Service Purge Caps are well suited for pharmaceutical, semiconductor, food and beverage, aerospace, and other high-purity welding environments where purge quality directly impacts weld integrity.\u003c\/p\u003e\n\u003cp data-start=\"805\" data-end=\"1093\"\u003e \u003c\/p\u003e\n\u003ch3 data-start=\"805\" data-end=\"1093\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1128\" data-end=\"1180\"\u003eWorld's first 3D-printed external purge cap system\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1181\" data-end=\"1248\"\u003eDesigned for orbital TIG welding and high-purity pipe fabrication\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1314\"\u003eCreates a secure external seal to improve purge gas containment\u003c\/li\u003e\n\u003cli data-start=\"1315\" data-end=\"1403\"\u003eDual TPU air cushion sealing technology provides even sealing pressure around the pipe\u003c\/li\u003e\n\u003cli data-start=\"1404\" data-end=\"1456\"\u003eHelps reduce purge gas consumption and purge times\u003c\/li\u003e\n\u003cli data-start=\"1457\" data-end=\"1506\"\u003eSupports cleaner, oxidation-free internal welds\u003c\/li\u003e\n\u003cli data-start=\"1507\" data-end=\"1568\"\u003eLarge threaded union nut provides fast, secure installation\u003c\/li\u003e\n\u003cli data-start=\"1569\" data-end=\"1635\"\u003eCompatible with Swagelok® and Festo\/SMC-style purge gas fittings\u003c\/li\u003e\n\u003cli data-start=\"1636\" data-end=\"1679\"\u003eLightweight yet durable PETG construction\u003c\/li\u003e\n\u003cli data-start=\"1680\" data-end=\"1703\"\u003ePatent-pending design\u003c\/li\u003e\n\u003cli data-start=\"1704\" data-end=\"1769\"\u003eSuitable for cleanroom and contamination-sensitive environments\u003c\/li\u003e\n\u003cli data-start=\"1770\" data-end=\"1851\"\u003eAvailable for pipe outside diameters from Ø 6 mm to Ø 323 mm (1\/4\" to 12¾\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp data-start=\"1890\" data-end=\"2079\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe Orbital Service Purge Caps are designed for external pipe sealing during weld purging, helping improve purge efficiency while reducing gas consumption in precision welding applications.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2081\" data-end=\"2110\"\u003eTypical applications include:\u003c\/p\u003e\n\u003cul data-start=\"2112\" data-end=\"2408\"\u003e\n\u003cli data-start=\"2112\" data-end=\"2133\"\u003eOrbital TIG welding\u003c\/li\u003e\n\u003cli data-start=\"2134\" data-end=\"2162\"\u003eHigh-purity process piping\u003c\/li\u003e\n\u003cli data-start=\"2163\" data-end=\"2194\"\u003ePharmaceutical piping systems\u003c\/li\u003e\n\u003cli data-start=\"2195\" data-end=\"2231\"\u003eSemiconductor tubing installations\u003c\/li\u003e\n\u003cli data-start=\"2232\" data-end=\"2266\"\u003eFood and beverage process piping\u003c\/li\u003e\n\u003cli data-start=\"2267\" data-end=\"2290\"\u003eAerospace fabrication\u003c\/li\u003e\n\u003cli data-start=\"2291\" data-end=\"2330\"\u003eStainless steel tube and pipe welding\u003c\/li\u003e\n\u003cli data-start=\"2331\" data-end=\"2367\"\u003eCleanroom fabrication environments\u003c\/li\u003e\n\u003cli data-start=\"2368\" data-end=\"2408\"\u003ePrecision process piping installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2410\" data-end=\"2589\"\u003eTheir external sealing design makes the purge caps especially valuable where contamination control, rapid setup, and consistent purge quality are essential before orbital welding.\u003c\/p\u003e\n\u003ch3 data-start=\"2596\" data-end=\"2628\" class=\"PDq2pG_selectionAnchorContainer\"\u003eSystem Configuration \u0026amp; Design\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"2630\" data-end=\"2760\"\u003eThe Orbital Service Purge Caps utilize an innovative external sealing system manufactured through advanced 3D-printing technology.\u003c\/p\u003e\n\u003cp data-start=\"2762\" data-end=\"3025\"\u003eRather than sealing inside the pipe, the caps clamp securely around the outside diameter using dual inflatable TPU air cushion seals that expand evenly as the union nut is tightened. This creates a reliable gas-tight seal while leaving the pipe bore unobstructed.\u003c\/p\u003e\n\u003cp data-start=\"3027\" data-end=\"3056\"\u003eCore system features include:\u003c\/p\u003e\n\u003cul data-start=\"3058\" data-end=\"3358\"\u003e\n\u003cli data-start=\"3058\" data-end=\"3102\"\u003eAdvanced 3D-printed PETG body construction\u003c\/li\u003e\n\u003cli data-start=\"3103\" data-end=\"3140\"\u003eDual TPU air cushion sealing system\u003c\/li\u003e\n\u003cli data-start=\"3141\" data-end=\"3191\"\u003eLarge threaded union nut for secure installation\u003c\/li\u003e\n\u003cli data-start=\"3192\" data-end=\"3233\"\u003eExternal sealing design for rapid setup\u003c\/li\u003e\n\u003cli data-start=\"3234\" data-end=\"3284\"\u003eCompatible with Swagelok® and Festo\/SMC fittings\u003c\/li\u003e\n\u003cli data-start=\"3285\" data-end=\"3329\"\u003eLightweight construction for easy handling\u003c\/li\u003e\n\u003cli data-start=\"3330\" data-end=\"3358\"\u003ePatent-pending engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3360\" data-end=\"3553\"\u003eAvailable sizes cover pipe outside diameters from Ø 6 mm to Ø 323 mm (1\/4\" to 12¾\"), allowing the system to accommodate everything from small instrumentation tubing to large process piping.\u003c\/p\u003e\n\u003cp data-start=\"3360\" data-end=\"3553\"\u003e \u003c\/p\u003e\n\u003ch3 data-start=\"3560\" data-end=\"3601\" class=\"PDq2pG_selectionAnchorContainer\"\u003eWhy Choose Orbital Service Purge Caps?\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"3603\" data-end=\"3854\"\u003eMaintaining a stable purge atmosphere is essential for producing high-quality stainless steel welds. The Orbital Service Purge Caps help improve purge efficiency by creating a reliable external seal that reduces purge gas loss while simplifying setup.\u003c\/p\u003e\n\u003cp data-start=\"3856\" data-end=\"4076\"\u003eTheir lightweight construction, innovative sealing technology, and broad size range make them an excellent solution for fabrication shops and field installations where productivity and weld quality are equally important.\u003c\/p\u003e\n\u003cp data-start=\"4078\" data-end=\"4105\"\u003e\u003cstrong\u003eKey advantages include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4107\" data-end=\"4526\"\u003e\n\u003cli data-start=\"4107\" data-end=\"4143\"\u003eHelps reduce purge gas consumption\u003c\/li\u003e\n\u003cli data-start=\"4144\" data-end=\"4197\"\u003eImproves purge efficiency and internal weld quality\u003c\/li\u003e\n\u003cli data-start=\"4198\" data-end=\"4261\"\u003eCreates a secure external seal without entering the pipe bore\u003c\/li\u003e\n\u003cli data-start=\"4262\" data-end=\"4293\"\u003eFast installation and removal\u003c\/li\u003e\n\u003cli data-start=\"4294\" data-end=\"4340\"\u003eLightweight, durable 3D-printed construction\u003c\/li\u003e\n\u003cli data-start=\"4341\" data-end=\"4395\"\u003eCompatible with common industrial purge gas fittings\u003c\/li\u003e\n\u003cli data-start=\"4396\" data-end=\"4463\"\u003eSuitable for high-purity and contamination-sensitive applications\u003c\/li\u003e\n\u003cli data-start=\"4464\" data-end=\"4526\"\u003eCovers pipe sizes from Ø 6 mm to Ø 323 mm (1\/4\" to 12¾\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4528\" data-end=\"4727\"\u003eFor orbital welding applications where purge quality directly affects weld integrity, the Orbital Service Purge Caps provide a practical, reusable solution for improving efficiency and repeatability.\u003c\/p\u003e\n\u003cdiv class=\"specs-table my-8\"\u003e\n\u003ch2 class=\"text-2xl font-bold mb-6\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\n\u003ctable class=\"w-full border-collapse border border-gray-300 text-left\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"bg-gray-100\"\u003e\n\u003cth class=\"border border-gray-300 px-6 py-4 font-semibold text-gray-900\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"border border-gray-300 px-6 py-4 font-semibold text-gray-900\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody class=\"text-gray-700\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eOrbital Service Purge Caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bg-gray-50\"\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eExternal Pipe Purge Sealing System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003ePipe OD Range\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eØ 6 mm – Ø 323 mm (1\/4\" – 12¾\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bg-gray-50\"\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eBody Material\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003ePETG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eAir Cushion Material\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eTPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bg-gray-50\"\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eSealing Method\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eDual external air cushion seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eManufacturing Method\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eAdvanced 3D Printing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bg-gray-50\"\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eCompatible Fittings\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eSwagelok®, Festo\/SMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eDesign Status\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003ePatent Pending\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bg-gray-50\"\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4 font-medium\"\u003eApplication\u003c\/td\u003e\n\u003ctd class=\"border border-gray-300 px-6 py-4\"\u003eWeld purging for orbital TIG welding and high-purity pipe fabrication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are Orbital Service Purge Caps used for?\u003c\/summary\u003e\n\u003cp\u003ePurge Caps create a gas-tight external seal on the ends of pipe during weld purging, helping reduce purge gas consumption and improve weld quality during orbital TIG welding.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do Purge Caps differ from internal purge plugs?\u003c\/summary\u003e\n\u003cp\u003eUnlike internal purge plugs, Purge Caps seal around the outside of the pipe using inflatable TPU air cushions. This leaves the inside diameter unobstructed while providing a secure purge seal.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pipe sizes are available?\u003c\/summary\u003e\n\u003cp\u003eThe Purge Cap range covers pipe outside diameters from Ø 6 mm to Ø 323 mm (1\/4\" to 12¾\"), making them suitable for a wide variety of tube and pipe applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat materials are the Purge Caps made from?\u003c\/summary\u003e\n\u003cp\u003eThe body and union nut are manufactured from durable PETG, while the sealing cushions are made from flexible TPU for reliable sealing performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre they suitable for high-purity applications?\u003c\/summary\u003e\n\u003cp\u003eYes. They are designed specifically for high-purity welding environments, including pharmaceutical, semiconductor, food and beverage, and aerospace applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat fittings are compatible with the Purge Caps?\u003c\/summary\u003e\n\u003cp\u003eThe Purge Caps are compatible with commonly used Swagelok® and Festo\/SMC purge gas fittings.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the Purge Caps help reduce purge gas costs?\u003c\/summary\u003e\n\u003cp\u003eYes. By creating a secure external seal, they help minimize purge gas loss, reducing gas consumption and shortening purge times before welding.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the Purge Caps reusable?\u003c\/summary\u003e\n\u003cp\u003eYes. Their durable PETG construction and TPU sealing system are designed for repeated use in demanding fabrication environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .faq-section details {\n    margin-bottom: 12px;\n    border: 1px solid #ddd;\n    border-radius: 8px;\n    padding: 8px 16px;\n    background-color: #fff;\n    box-shadow: 0 1px 3px rgba(0,0,0,0.05);\n  }\n  .faq-section summary {\n    font-weight: 600;\n    cursor: pointer;\n    padding: 12px 0;\n    list-style: none;\n  }\n  .faq-section details[open] {\n    background-color: #f9f9f9;\n  }\n  .faq-section summary::-webkit-details-marker {\n    display: none;\n  }\n  .faq-section p {\n    margin: 0 0 12px 0;\n    padding-bottom: 4px;\n  }\n\u003c\/style\u003e","brand":"BTH Sales","offers":[{"title":"HP Purge Cap Ø 6.0 mm OD","offer_id":44073831596119,"sku":null,"price":78.0,"currency_code":"CAD","in_stock":true},{"title":"HP Purge Cap Ø 6.35 mm 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