{"id":15787,"date":"2026-09-29T09:10:53","date_gmt":"2026-09-29T09:10:53","guid":{"rendered":"https:\/\/npt-lok.com\/?p=15787"},"modified":"2026-09-30T05:08:41","modified_gmt":"2026-09-30T05:08:41","slug":"swagelok-vs-parker-tube-fittings-compared","status":"publish","type":"post","link":"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/","title":{"rendered":"Swagelok vs Parker Tube Fittings Compared"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Tube fittings need to handle system pressure and prevent leaks. Choosing unsuitable fittings or mixing incompatible parts can cause leaks and downtime. How do Swagelok and Parker compare, and are there reliable alternatives at a lower cost?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This comparison focuses on Swagelok tube fittings and Parker A-LOK, the <a href=\"https:\/\/npt-lok.com\/ar\/%d9%88%d8%b5%d9%84%d8%a7%d8%aa-%d9%85%d8%b2%d8%af%d9%88%d8%ac%d8%a9\/\">double-ferrule series<\/a>. Parker CPI uses a single ferrule and should not be confused with A-LOK.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u0628\u062f\u064a\u0644<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Swagelok_vs_Parker_Comparison\" >Swagelok vs Parker Comparison<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Design\" >Design<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Materials_and_Size\" >Materials and Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Pressure_and_Temperature_Performance\" >Pressure and Temperature Performance<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Why_Consider_a_Parker_or_Swagelok_Alternative\" >Why Consider a Parker or Swagelok Alternative?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#What_Should_You_Look_for_in_a_Parker_or_Swagelok_Equivalent\" >What Should You Look for in a Parker or Swagelok Equivalent?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Product_Selection\" >Product Selection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Quality_Supported_by_Evidence\" >Quality Supported by Evidence<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Competitive_Purchasing_Costs\" >Competitive Purchasing Costs<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#FAQ\" >\u0627\u0644\u062a\u0639\u0644\u064a\u0645\u0627\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Q1_Can_Swagelok_and_Parker_Components_Be_Mixed\" >Q1. Can Swagelok and Parker Components Be Mixed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Q2_Is_Parker_Cheaper_Than_Swagelok\" >Q2. Is Parker Cheaper Than Swagelok?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Q3_Are_Swagelok_and_Parker_A-LOK_Components_Interchangeable\" >Q3. Are Swagelok and Parker A-LOK Components Interchangeable?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Q4_Do_you_offer_a_quality_guarantee\" >Q4. Do you offer a quality guarantee?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/#Evaluating_NPTLOK_as_a_Swagelok_Alternative\" >Evaluating NPTLOK as a Swagelok Alternative<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Swagelok_vs_Parker_Comparison\"><\/span><span style=\"font-weight: 400;\">Swagelok vs Parker Comparison<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Selection factor<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Swagelok tube fittings<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Parker A-LOK tube fittings<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Basic construction<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Two ferrules; hinging-colleting back-ferrule geometry<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Two ferrules; Suparcase-treated back ferrule<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Materials range<\/span><\/td>\n<td><span style=\"font-weight: 400;\">316 stainless steel, brass, Alloy 400, 6-Moly, Alloy 625, titanium<\/span><\/td>\n<td><span style=\"font-weight: 400;\">316 stainless steel, brass, Alloy 400, 6Mo, Alloy 625, titanium<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Working pressure<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 10,000 PSI<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 6,000 PSI<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Purchase cost<\/span><\/td>\n<td><span style=\"font-weight: 400;\">$$$<\/span><\/td>\n<td><span style=\"font-weight: 400;\">$$<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">certificates<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0646\u0639\u0645<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0646\u0639\u0645<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Global presence<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Nearly 200 sales\/service locations in about 70 countries<\/span><\/td>\n<td><span style=\"font-weight: 400;\">International authorized distributor network<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">After-Sales Support<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Local sales\/service centers; technical support and training<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Distributor technical support; IPD training<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Design\"><\/span><span style=\"font-weight: 400;\">Design<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Swagelok uses a front ferrule primarily for sealing and a back ferrule for gripping the tube. Its advanced back-ferrule geometry produces hinging-colleting action: it grips the tube and supports it behind the gripping point. Swagelok describes this support as contributing to vibration resistance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Parker A-LOK also separates sealing and gripping between two ferrules. <\/span><span style=\"font-weight: 400;\">Parker\u2019s materials guide<\/span><span style=\"font-weight: 400;\"> describes Suparcase surface hardening for back ferrules and silver-plated nut threads for lubrication. Hardening helps the ferrule grip; silver plating reduces thread galling, where mating metal surfaces stick or become damaged.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For standard initial assembly of common 1\/4\u20131-inch fittings, both tightening <\/span><span style=\"font-weight: 400;\">1\u00bc turns from finger-tight<\/span><span style=\"font-weight: 400;\"> and checking with the <\/span><span style=\"font-weight: 400;\">appropriate inspection gauge<\/span><span style=\"font-weight: 400;\">. Smaller sizes and special connections have different instructions.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-14733 aligncenter\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/C-Ferrule-Structure.jpg\" alt=\" Exploded double-ferrule fitting with nut, back ferrule, front ferrule and body arranged along a transparent tube.\" width=\"670\" height=\"380\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/C-Ferrule-Structure.jpg 670w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/C-Ferrule-Structure-18x10.jpg 18w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Materials_and_Size\"><\/span><span style=\"font-weight: 400;\">Materials and Size<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Both brands offer <a href=\"https:\/\/npt-lok.com\/ar\/%d8%aa%d8%ac%d9%87%d9%8a%d8%b2%d8%a7%d8%aa-%d8%a3%d9%86%d8%a7%d8%a8%d9%8a%d8%a8-%d8%a7%d9%84%d9%81%d9%88%d9%84%d8%a7%d8%b0-%d8%a7%d9%84%d9%85%d9%82%d8%a7%d9%88%d9%85-%d9%84%d9%84%d8%b5%d8%af%d8%a3\/\">316 stainless steel<\/a>, <a href=\"https:\/\/npt-lok.com\/ar\/%d8%aa%d8%ac%d9%87%d9%8a%d8%b2%d8%a7%d8%aa-%d8%a7%d9%84%d8%a3%d9%86%d8%a7%d8%a8%d9%8a%d8%a8-%d8%a7%d9%84%d9%86%d8%ad%d8%a7%d8%b3%d9%8a%d8%a9\/\">\u0646\u062d\u0627\u0633<\/a>, Alloy 400, titanium, and other alloys. The referenced standard stainless steel listings specify 316.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Swagelok\u2019s catalog<\/span><span style=\"font-weight: 400;\"> lists fractional tube sizes from 1\/16 to 2 inches and metric sizes from 2 to 50 mm. <\/span><span style=\"font-weight: 400;\">Parker\u2019s referenced A-LOK ferrule selection<\/span><span style=\"font-weight: 400;\"> lists 1\/16 to 2 inches and 2 to 25 mm. Availability depends on the exact material and configuration. Also distinguish tube outside diameter from pipe-thread size: these are separate dimensions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For help identifying connection sizes, see our guide to<\/span><a href=\"https:\/\/npt-lok.com\/ar\/tube-fittings-dimensions\/\"><span style=\"font-weight: 400;\"> tube fitting dimensions<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Pressure_and_Temperature_Performance\"><\/span><span style=\"font-weight: 400;\">Pressure and Temperature Performance<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Neither brand has one working-pressure rating covering every fitting. Tubing material, outside diameter, wall thickness, temperature, and connection configuration all matter.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For a concrete example, <\/span><span style=\"font-weight: 400;\">Swagelok\u2019s Tubing Data<\/span><span style=\"font-weight: 400;\">\u00a0lists 5,100 psig for 1\/4-inch OD \u00d7 0.035-inch-wall seamless stainless steel tubing and 7,500 psig for the same OD with a 0.049-inch wall. These are calculated tubing values at \u221220 to 100\u00b0F (\u221228 to 37\u00b0C), under the table\u2019s stated assumptions\u2014not blanket fitting ratings.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Parker likewise provides tubing pressure tables in its <\/span><span style=\"font-weight: 400;\">CPI\/A-LOK catalog<\/span><span style=\"font-weight: 400;\">. Compare identical tubing and connection conditions; apply the manufacturer\u2019s temperature derating where required. A pressure-test result or burst pressure must not be presented as continuous working pressure.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Consider_a_Parker_or_Swagelok_Alternative\"><\/span><span style=\"font-weight: 400;\">Why Consider a Parker or Swagelok Alternative?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Repeated purchases can make small unit-price differences significant. You may also want a second qualified supplier, smaller trial orders, or a different delivery schedule.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">An alternative is worth evaluating when it meets the project\u2019s technical and documentation requirements at a competitive total cost.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Should_You_Look_for_in_a_Parker_or_Swagelok_Equivalent\"><\/span><span style=\"font-weight: 400;\">What Should You Look for in a Parker or Swagelok Equivalent?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A Swagelok equivalent should mean a product evaluated for the same application, not an assumption of identical design, performance, or interchangeable parts. Review three areas before purchasing.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Product_Selection\"><\/span><span style=\"font-weight: 400;\">Product Selection<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Match tube OD, wall thickness, fitting material, configuration, thread standard, and available installation space. A 6 mm tube and a 1\/4-inch tube are different sizes; similar appearance is not enough. Provide the fluid, operating pressure, temperature range, and any cleaning requirements.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-15788\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/09\/03-tube-od-and-npt-selection.png\" alt=\"NPTLOK SS-FT4-MN4 for 1\/4-inch tubing compared with SS-MT6-MN4 for 6 mm tubing; both have 1\/4 NPT male threads.\" width=\"1600\" height=\"900\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/09\/03-tube-od-and-npt-selection.png 1600w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/09\/03-tube-od-and-npt-selection-768x432.png 768w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/09\/03-tube-od-and-npt-selection-1536x864.png 1536w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/09\/03-tube-od-and-npt-selection-18x10.png 18w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">For<\/span><a href=\"https:\/\/npt-lok.com\/ar\/%d8%b5%d9%85%d8%a7%d9%85-%d8%a7%d9%84%d8%a3%d8%ac%d9%87%d8%b2%d8%a9\/\"><span style=\"font-weight: 400;\"> instrumentation valves<\/span><\/a><span style=\"font-weight: 400;\">, also identify the function, flow coefficient (Cv), seat and seal materials, and operating method. A matching connection size does not establish equivalent flow or shutoff performance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Before placing a formal order, request samples from the supplier you are considering. This allows you to verify whether the product meets your requirements.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quality_Supported_by_Evidence\"><\/span><span style=\"font-weight: 400;\">Quality Supported by Evidence<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Request material certificates and test records relevant to the proposed products. Check the tested sizes, materials, pressure, medium, duration, and acceptance criteria.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Your chosen product should ideally be backed by an ISO 9001:2015 certified quality management system, EAC, and material test certificates (MTC) available as required. Pressure test videos should also be available for review. These are the marks of a trustworthy and reliable Swagelok alternative.<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-14869 aligncenter\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/MTC-samples_01.jpg\" alt=\"\u0627\u0645 \u062a\u064a \u0633\u064a\" width=\"602\" height=\"425\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/MTC-samples_01.jpg 1684w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/MTC-samples_01-768x543.jpg 768w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/MTC-samples_01-1536x1085.jpg 1536w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/05\/MTC-samples_01-18x12.jpg 18w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Competitive_Purchasing_Costs\"><\/span><span style=\"font-weight: 400;\">Competitive Purchasing Costs<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Compare quotations for the same specification, quantity, documentation, and delivery terms. For example, use one purchase list of 100 stainless steel 1\/2-inch unions for each supplier. Include freight, import costs, qualification testing, and replacement stock. A lower unit price is useful only if the complete purchase still meets your requirements.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><span style=\"font-weight: 400;\">\u0627\u0644\u062a\u0639\u0644\u064a\u0645\u0627\u062a<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Q1_Can_Swagelok_and_Parker_Components_Be_Mixed\"><\/span><span style=\"font-weight: 400;\">Q1. Can Swagelok and Parker Components Be Mixed?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, <\/span><span style=\"font-weight: 400;\">Parker\u2019s certification hub<\/span><span style=\"font-weight: 400;\"> lists an A-LOK\/Swagelok intermix certificate; you can use this for reference.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q2_Is_Parker_Cheaper_Than_Swagelok\"><\/span><span style=\"font-weight: 400;\">Q2. Is Parker Cheaper Than Swagelok?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Prices vary by specification, quantity, and purchasing terms. Neither brand is consistently cheaper for every order. Request matching quotations and compare the total delivered cost and lead time.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q3_Are_Swagelok_and_Parker_A-LOK_Components_Interchangeable\"><\/span><span style=\"font-weight: 400;\">Q3. Are Swagelok and Parker A-LOK Components Interchangeable?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Do not transfer tubing with previously installed nuts and ferrules into another brand\u2019s body merely because the threads engage. <\/span><span style=\"font-weight: 400;\">Swagelok calls this interchange<\/span><span style=\"font-weight: 400;\"> and advises against it. Replacing a complete fitting requires assessment of the tubing end and the new manufacturer\u2019s assembly requirements.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q4_Do_you_offer_a_quality_guarantee\"><\/span><span style=\"font-weight: 400;\">Q4. Do you offer a quality guarantee?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes. NPTLOK offers a two-year warranty, with free replacement of defective products for quality problems. Our quality management system is certified to<\/span><a href=\"https:\/\/npt-lok.com\/ar\/%d8%b4%d9%87%d8%a7%d8%af%d8%a9-nptlok\/\"><span style=\"font-weight: 400;\"> \u0627\u064a\u0632\u0648 9001:2015<\/span><\/a><span style=\"font-weight: 400;\">. You can also review<\/span><a href=\"https:\/\/npt-lok.com\/ar\/%d8%a7%d9%85%d8%aa%d8%ad%d8%a7%d9%86\/\"><span style=\"font-weight: 400;\"> our <\/span><span style=\"font-weight: 400;\">pressure test videos<\/span><\/a><span style=\"font-weight: 400;\"> as part of your supplier evaluation.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Evaluating_NPTLOK_as_a_Swagelok_Alternative\"><\/span><span style=\"font-weight: 400;\">Evaluating NPTLOK as a Swagelok Alternative<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Looking for a Swagelok alternative at a competitive price? NPTLOK supplies<\/span><a href=\"https:\/\/npt-lok.com\/ar\/%d8%aa%d8%ac%d9%87%d9%8a%d8%b2%d8%a7%d8%aa-%d8%a7%d9%84%d8%a3%d9%86%d8%a7%d8%a8%d9%8a%d8%a8\/\"><span style=\"font-weight: 400;\"> \u062a\u062c\u0647\u064a\u0632\u0627\u062a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628<\/span><\/a><span style=\"font-weight: 400;\"> and valves directly from its factory at competitive prices.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Our tube fittings, including front and back ferrules, nuts, and bodies, are designed with reference to Swagelok\u2019s two-ferrule design.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We use materials supported by material test certificates, apply ferrule hardening to support tube grip, and silver-plate nut threads to reduce galling. Orders can start at 10 pieces, helping you evaluate products before a larger purchase; confirm minimum quantities for special materials or custom orders.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Send your reference part numbers or drawings, quantities, and operating conditions. We will review your requirements and provide proposed NPTLOK options, available documentation, pricing, and lead time for your evaluation.\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/npt-lok.com\/ar\/%d8%aa%d9%86%d8%b2%d9%8a%d9%84-%d9%83%d8%aa%d8%a7%d9%84%d9%88%d8%ac-%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac\/\"><span style=\"font-weight: 400;\">Download our product catalogs<\/span><\/a><span style=\"font-weight: 400;\"> to review available fittings and valves.\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/npt-lok.com\/ar\/%d8%a7%d8%aa%d8%b5%d9%84-%d9%84%d9%84%d8%ad%d8%b5%d9%88%d9%84-%d8%b9%d9%84%d9%89-%d8%b9%d8%b1%d8%b6-%d8%a3%d8%b3%d8%b9%d8%a7%d8%b1\/\"><span style=\"font-weight: 400;\">Contact NPTLOK<\/span><\/a><span style=\"font-weight: 400;\"> for product recommendations and a factory-direct quote.\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Tube fittings need to handle system pressure and prevent leaks. Choosing unsuitable fittings or mixing incompatible parts can cause leaks and downtime. How do Swagelok and Parker compare, and are there reliable alternatives at a lower cost? This comparison focuses on Swagelok tube fittings and Parker A-LOK, the double-ferrule series. Parker CPI uses a single [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15787","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Swagelok vs Parker Tube Fittings Compared - NPTLOK Instrumentation Tube Fittings and Valves<\/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:\/\/npt-lok.com\/ar\/swagelok-vs-parker-tube-fittings-compared\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Swagelok vs Parker Tube Fittings Compared - NPTLOK Instrumentation Tube Fittings and Valves\" \/>\n<meta property=\"og:description\" content=\"Tube fittings need to handle system pressure and prevent leaks. Choosing unsuitable fittings or mixing incompatible parts can cause leaks and downtime. How do Swagelok and Parker compare, and are there reliable alternatives at a lower cost? This comparison focuses on Swagelok tube fittings and Parker A-LOK, the double-ferrule series. 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Choosing unsuitable fittings or mixing incompatible parts can cause leaks and downtime. How do Swagelok and Parker compare, and are there reliable alternatives at a lower cost? This comparison focuses on Swagelok tube fittings and Parker A-LOK, the double-ferrule series. 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