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SuperlokUSA® dielectric fittings are engineered to prevent galvanic corrosion and electrical conductivity between dissimilar metals in pipeline and fluid systems. These fittings are essential for isolating system components in gas distribution, process instrumentation, and fluid control applications safeguarding sensitive equipment from stray currents, voltage bleed, and long-term degradation.
Each dielectric fitting is machined from corrosion-resistant alloys and high-grade thermoplastics to maintain electrical isolation while preserving mechanical strength under pressure. Superlok uses sanitary stainless steel fittings for metal components, paired with precision-formed insulators such as PEEK and PTFE for dependable long-term performance. These materials deliver high resistance to chemicals, UV, and extreme temperatures without compromising system reliability.
With pressure ratings up to 5000 psig (344 bar) and electrical resistance of 10⁶ ohms at 10V DC, these fittings perform in high-pressure systems where both mechanical and electrical isolation are required. Temperature tolerances range from –40°F to 200°F (–40°C to 93°C), making them adaptable to challenging environments across oil and gas, chemical processing, and energy infrastructure.
Superlok dielectric fittings are available in several formats, including gaugeable tube ends, NPT threads, and compression ends. They integrate cleanly into systems requiring precise fluid control, electrical safety, and mechanical reliability. Whether used in monitoring stations, natural gas pipelines, or systems adjacent to clean-in-place instrumentation, these fittings reduce failure risk and extend equipment life.
Swagelok® dielectric fittings have long been a trusted choice for protecting systems from galvanic corrosion and stray electrical current. But when price, lead time, or flexibility becomes an issue, Superlok offers a fully compatible alternative engineered for performance, safety, and long-term reliability.
Superlok dielectric fittings are precision-built to match Swagelok® form and function, using corrosion-resistant alloys and sanitary stainless steel fittings to ensure chemical resistance, mechanical strength, and durability in harsh operating environments. They’re used across oil and gas, water systems, chemical processing, and fluid handling industries anywhere electrical isolation is needed between dissimilar metals.
With pressure ratings up to 5000 psig and electrical resistance of 10⁶ ohms, these fittings are trusted in demanding pressure systems that require both mechanical sealing and electrical protection. Internal components are built from high-performance insulators like PEEK and PTFE, designed to hold up under extreme temperature shifts and fluid conditions without breaking down.
Superlok’s dielectric fittings line is ideal for teams seeking precise fluid control without the risk of stray current, and they integrate cleanly into both new builds and retrofit applications. They’re also readily available across North America offering fast shipping, reliable inventory, and real-world cost savings without compromising your specs.
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SuperlokUSA® dielectric fittings are designed to match the similar form, fit, and sealing function as Swagelok® and Parker® equivalents, making them fully interchangeable without compromising performance. From dimensions to thread construction, every fitting meets ASME B1.1 tolerance specs, ensuring a precise fit and consistent sealing across fluid control and pipeline systems.
Our dielectric fittings use corrosion-resistant alloys and sanitary stainless steel fittings to maintain long-term reliability in high-pressure systems. Each component is engineered to deliver electrical insulation and mechanical strength ideal for preventing galvanic corrosion and stray current in mission-critical environments like natural gas, chemical processing, and utility infrastructure.
For customers in your area and the greater Northeast, Superlok provides fast access to these trusted Swagelok® alternatives backed by SGS intermixability and interchangeability testing. You get the compatibility you need without inflated lead times or costs.
Dielectric fittings are critical components in industries where galvanic corrosion, stray current, or electrical conductivity between dissimilar metals can compromise system integrity. Superlok dielectric fittings are used widely in oil and gas, water treatment, chemical processing, and power generation anywhere fluid systems need electrical isolation without sacrificing performance.
Engineered with corrosion-resistant alloys and sanitary stainless steel fittings, Superlok’s dielectric products are built to withstand the toughest environmental conditions. Whether you’re managing high-pressure systems, navigating chemical compatibility, or requiring electrical insulation in piping or instrumentation lines, these fittings deliver uncompromising reliability.
Each component is precision-machined to meet clean in place instrumentation standards and support hygienic fluid processors. Their high-integrity seals and non-conductive barriers help maintain sterile conditions and prevent voltage interference across sensitive equipment. That’s why they’re trusted in both harsh industrial plants and finely tuned lab environments.
Superlok dielectric fittings also support fast field installation with minimal downtime. Available in a variety of sizes and connection types, they offer precise fluid control and meet demanding application specs across North America. Whether you’re replacing Swagelok® components or building out a new system, Superlok provides a cost-effective, reliable alternative with proven interchangeability.
SuperlokUSA stands out as a leading provider of Superlok fittings, maintaining the largest inventory in the United States, ready to ship anywhere nationwide. This extensive stock ensures quick delivery and minimal downtime for customers, making it a significant advantage over competitors like Swagelok®. With Superlok USA's commitment to accessibility and efficiency, businesses can rely on timely solutions for their fluid and gas system needs. This ready-to-ship capability, combined with Superlok's high-quality, cost-effective fittings, positions Superlok USA as a top choice for industries seeking reliable and responsive alternatives to Swagelok® fittings.
SuperlokUSA offers a distinct advantage with its fast delivery service across the United States, ensuring customers receive their orders promptly to minimize project delays. Through strategic partnerships with shipping providers, Superlok USA provides special negotiated rates, making their high-quality fittings not only reliable but also cost-effective to transport. This combination of speed and affordability sets Superlok apart from competitors like Swagelok®, where delivery times and shipping costs can be less predictable. For businesses seeking efficient and budget-friendly solutions, Superlok USA’s fast delivery and competitive shipping rates make it a preferred choice for fluid and gas system needs.
