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SuperlokUSA’s tube fittings, also comparable to Swagelok® tube fittings, are built for high-performance fluid and gas systems where leak prevention, sanitary standards, and long-term durability matter. These compression-style instrumentation fittings are trusted in hygienic fluid processors, clean-in-place instrumentation setups, and demanding pressure systems across industries like biopharma, chemical processing, and oil and gas.
Each fitting is precision-machined from 316 stainless steel or other corrosion-resistant alloys to ensure lasting performance and chemical resistance. The double ferrule design provides a strong, vibration-resistant seal that holds under high pressure and temperature, maintaining precise fluid control and protecting against leaks. These are sanitary stainless steel fittings built for environments where system cleanliness and uptime are critical.
SU
SBHU
SBHRU
SRU
SUC
SMPWE
SSWE
SUE
SME
SAE
SHUE
SHME
SFE
SN
SFS
SVP
SR
SBR
SMA
SFA
SPC
SAF
SAU
SAA
SI
SMC
SFC
SSFA
SGC
SUT
SRUT
SMBT
SMRT
SFBT
SFRT
SP
SC
| Tube OD (inch) | 0.010 | 0.012 | 0.014 | 0.016 | 0.020 | 0.028 | 0.035 | 0.049 | 0.065 | 0.083 | 0.095 | 0.109 | 0.120 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/16 | 5600 | 6800 | 8100 | 9400 | 12000 | ||||||||
| 1/8 | 8500 | 10900 | |||||||||||
| 3/16 | 5400 | 7000 | 10200 | ||||||||||
| 1/4 | 4000 | 5100 | 7500 | 10200 | |||||||||
| 5/16 | 4000 | 5800 | 8000 | ||||||||||
| 3/8 | 3300 | 4800 | 6500 | ||||||||||
| 1/2 | 2600 | 3700 | 5100 | 6700 | |||||||||
| 5/8 | 2900 | 4000 | 5200 | 6000 | |||||||||
| 3/4 | 2400 | 3300 | 4200 | 4900 | 5800 | ||||||||
| 7/8 | 2000 | 2800 | 3600 | 4200 | 4800 | ||||||||
| 1 | 2400 | 3100 | 3600 | 4200 | 4700 |
SUPERLOK Bored-Through Fittings accommodate thermocouples or dip tubes.
To order suffix “-TM” to the Size designator. (Example : SU-8-TM, SMC-8-8N-TM-B)
Note – The root diameter of the pipe thread end of male connectors makes it impractical to bore through all male connectors.
For decades, Swagelok® tube fittings have been a trusted standard in fluid and gas systems. But as industries demand more cost-effective options without compromising on performance, Superlok tube fittings have become a serious contender. Offering comparable quality, tighter cost control, and proven system reliability, Superlok is a preferred choice for businesses that prioritize safety, clean operation, and long-term performance.
Superlok tube fittings are engineered for high-pressure instrumentation, clean-in-place setups, and demanding pressure systems. Manufactured from corrosion-resistant alloys and sanitary stainless steel, they deliver leak-tight performance in critical sectors like oil and gas, semiconductor manufacturing, biopharma, and chemical processing. Known for their precise fluid control, ease of installation, and system compatibility, Superlok offers a clear, field-tested alternative to Swagelok® tube fittings.
For teams designing or upgrading hygienic fluid processors, Superlok provides a dependable solution that doesn’t cut corners. Their clean flow paths, vibration-resistant sealing, and nationwide availability make them ideal for both rapid replacements and full-scale system builds. Whether you’re scaling up production or just tired of paying the Swagelok® premium, Superlok gives you the comparable performance edge, without the markup.
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Superlok tube fittings are designed to match the same dimensions, thread types, and sealing profiles as Swagelok®Hy-Lok®, DK-Lok®, Ham-Let® and Parker® instrumentation fittings. That means they’re fully interchangeable same fit, same function, no need to modify your system.The nut and body threads on Superlok fittings follow ASME B1.1 standards, and all thread tolerances are tightly controlled. This ensures a consistent, secure seal every time you install them, even in high-pressure or high-vibration environments.
To back it up, SuperlokUSA provides official SGS-certified test results confirming full intermix-ability and burst-test performance. If you’re sourcing Swagelok® alternatives near you, Superlok offers a reliable, proven option without the high price tag.
These instrumentation Tube fittings play a critical role in industries where systems are frequently assembled, disassembled, or maintained. These include oil and gas, chemical processing, pharmaceuticals, food and beverage, and semiconductor manufacturing. In all of these settings, secure, leak-tight connections that can be quickly serviced without compromising system integrity are essential.
Superlok tube fittings are engineered to meet those demands. Manufactured from corrosion-resistant alloys like 316 stainless steel, they deliver reliable performance in harsh environments and high-pressure systems. Their double ferrule design ensures a consistent, vibration-resistant seal, while easy installation and reusability help reduce downtime and overall operational cost. Whether it’s maintaining sterile flow in pharmaceutical production, ensuring hygienic fluid handling in food processing, or managing precise fluid control in a refinery or cleanroom, Superlok fittings offer the performance and reliability modern industries depend on. With their clean-in-place compatibility, sanitary stainless steel construction, and leak-tight design, these tube fittings are trusted across sectors where system integrity is non-negotiable.
SuperlokUSA maintains one of the largest in-stock inventories of tube fittings in the United States, ready to ship at a moment’s notice. Whether you need fittings for a quick repair or a full system build, we have the stock to meet your schedule without delays. Our inventory includes a full range of sizes, configurations, and materials ensuring system compatibility and minimal downtime. Unlike Swagelok®, where lead times can stretch, SuperlokUSA delivers fast. For teams that value reliability, availability, and responsiveness, our inventory gives you the confidence to move projects forward without compromise.
SuperlokUSA offers rapid, reliable delivery on all tube fittings, shipping nationwide from multiple distribution points. Our logistics network is built for speed, with pre-negotiated shipping rates and trusted partners that ensure timely arrivals. You won’t face long delays or inflated shipping costs often seen with Swagelok®. Whether you're ordering a replacement part or restocking for routine maintenance, SuperlokUSA minimizes project hold-ups and keeps fluid and gas systems online. When time and budget matter, our streamlined fulfillment process makes Superlok a preferred solution for engineers, plant managers, and procurement teams across the U.S.
