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Home » O Ring Face Seal Fittings
SuperlokUSA® O-ring face seal fittings are designed for compact, leak-tight connections in high-pressure systems where space is tight and reliability is critical. These fittings use a captured O-ring to create a high-integrity seal that holds up under vibration, thermal cycling, and system movement ideal for hydraulic assemblies, gas lines, and sanitary fluid systems.
Each fitting is precision-machined from corrosion-resistant alloys or sanitary stainless steel fittings, depending on the application. They’re a go-to solution when you need both clean design and precise fluid control in confined environments. The compact form factor makes them easy to install and service, especially in tight panels or densely packed fluid circuits.
These fittings are trusted in demanding industries like aerospace, semiconductor, chemical processing, and hygienic fluid processors, where even a minor leak can disrupt production. Whether used in welded tube assemblies, valve manifolds, or clean-in-place instrumentation systems, Superlok O-ring face seal fittings deliver long-term sealing without the complexity of bulky or high-maintenance alternatives.
Available in a variety of sizes and configurations, these fittings integrate easily into both new and legacy systems. Their high pressure ratings, small footprint, and repeatable seal performance make them a reliable solution for engineers designing efficient, space-conscious systems.
Swagelok® O-ring face seal fittings are a well-known option for leak-tight performance in compact fluid and gas systems but Superlok delivers the same precision fit, durability, and high-pressure sealing with more flexible sourcing and a better value.
Superlok O-ring face seal fittings are machined from corrosion-resistant alloys and sanitary stainless steel, making them ideal for pressure systems that demand zero fluid loss. These fittings are fully compatible with Swagelok® designs and deliver repeatable sealing performance through a captive O-ring that eliminates leak paths, even under thermal expansion, vibration, or frequent disassembly.
Engineers choose Superlok as a direct Swagelok® alternative for everything from chemical processing to aerospace and clean-in-place instrumentation systems. The compact form factor supports tight panel layouts, while the precision sealing surface ensures consistent, long-term reliability. Whether you’re routing lines in a confined hydraulic block or building out high-purity controls, Superlok helps maintain precise fluid control with fittings you can count on.
With broad availability, lower total cost, and zero compromise on spec, SuperlokUSA® gives you full confidence in the field or on the production floor without waiting on backorders or overpaying for the badge.
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Need a reliable alternative to Swagelok® O-ring face seal fittings near your area? SuperlokUSA offers fully interchangeable options built to the same ASME standards, with matching form, fit, and sealing performance.
Each Superlok face seal fitting uses a precision-machined body and a captive O-ring to create a clean, high-pressure seal even in tight layouts or compact system panels. Whether you’re working on a hydraulic block, a high-purity gas manifold, or clean-in-place instrumentation, these fittings lock in tight and stay leak-free under pressure.
Dimensions and tolerances match Swagelok® and Parker®, making Superlok a drop-in replacement with SGS-backed performance testing. You get verified compatibility, solid construction, and a fast-turn solution you can source without the typical wait or markup.
SuperlokUSA ships quickly nearby and throughout the U.S, with a full range of face seal fittings in stock and ready to go.
Superlok O-ring face seal fittings are used by engineers and maintenance teams in industries where leak-proof connections are critical no exceptions. From aerospace and semiconductor manufacturing to chemical processing, fluid control, and pharmaceutical systems, these fittings deliver consistent, high-pressure sealing in compact layouts.
Their captured O-ring design eliminates leak paths while handling vibration, thermal cycling, and aggressive media with ease. That makes them ideal for pressure systems where failure isn’t an option. Built from corrosion-resistant alloys and sanitary stainless steel fittings, they’re trusted in everything from control panels and gas skids to clean-in-place instrumentation and mission-critical automation.
Superlok’s face seal fittings are engineered for precise fluid control, with tolerances that match or exceed Swagelok® alternatives. They’re easy to install, easy to service, and fully interchangeable making them a smart spec for OEMs, retrofit projects, and new system builds alike.
If you’re in an industry where reliability matters more than branding, Superlok delivers real performance without compromise.
SuperlokUSA maintains a steady, U.S.-based inventory of O-ring face seal fittings engineered for leak-proof performance in compact, high-pressure systems. We stock a wide range of sizes and configurations, all designed to match Swagelok® specs for form, fit, and sealing function. That means no delays, no long lead times, and no need to re-engineer your setup. These fittings are machined from corrosion-resistant alloys and sanitary stainless steel, making them a reliable solution for mission-critical applications in aerospace, chemical processing, and semiconductor systems. When you need fittings that seal the first time and every time, Superlok delivers without the supply headaches.
We understand that precise fluid control and system uptime are non-negotiable. That’s why SuperlokUSA offers fast, affordable delivery nationwide. Whether you're replacing O-ring face seal hydraulic fittings in the field or building out clean-in-place instrumentation on the shop floor, your parts show up on time, ready to install.
By avoiding global freight slowdowns and working with trusted U.S. carriers, Superlok gives you reliable shipping, short turnaround times, and predictable costs. You’ll spend less time waiting and more time keeping your pressure systems running smoothly.
