Menu
Close
Home » Flared Fittings
Request a quote today or call (805) 658-2043 to spec Superlok flare fittings for your high-pressure application.
Each flared fitting meets SAE J514 and ISO 8434-2 standards for full compatibility with industry-standard systems. They perform under extreme pressure and temperature, with working limits up to 8700 psi (600 bar) at 100°F with O-ring types, and up to 800°F (427°C) for non-O-ring variants. This performance makes them a reliable choice for operations that require secure sealing in tight spaces, frequent maintenance, or harsh operating conditions.
With options including elbows, tees, reducers, and hose adapter capabilities, Superlok flare fittings give engineers and technicians the flexibility to build out complex systems with confidence. Their mechanical strength, temperature resistance, and field-proven sealing performance make them a go-to solution when system safety and uptime matter most.
| Nom.SAE Dash Size | Nom.Tube O.D Inches | 37 Flare Straight Thread | Nom.Pipe Size | SAE St. Threads Union and Bulkhead (psi) | Fittings with Pipe Threads (psi) |
|---|---|---|---|---|---|
| 2 | 1/8 | 5/16" - 24 | 1/8" | 5000 | 5000 |
| 3 | 3/16 | 3/8"- 24 | 1/8" | 5000 | 5000 |
| 4 | 1/4 | 7/16" - 20 | 1/8" | 5000 | 5000 |
| 5 | 5/16 | 1/2" - 20 | 1/8" | 5000 | 5000 |
| 6 | 3/8 | 9/16" - 18 | 1/4" | 5000 | 5000 |
| 8 | 1/2 | 3/4" - 16 | 3/8" | 4500 | 4000 |
| 10 | 5/8 | 7/8" - 14 | 1/2" | 3500 | 3000 |
| 12 | 3/4 | 1 1/16" - 12 | 3/4" | 3500 | 3000 |
| 14 | 7/8 | 1 3/16" - 12 | 3/4" | 3000 | 2500 |
| 16 | 1 | 1 5/16" - 12 | 1" | 3000 | 2000 |
| 20 | 1 1/4 | 1 5/8" - 12 | 1 1/4" | 2500 | 1150 |
| 24 | 1 1/2 | 1 7/8" - 12 | 1 1/2" | 2000 | 1000 |
| 32 | 2 | 2 1/2" - 12 | 2" | 1500 | 1000 |
Swagelok® flared fittings are widely known for their high-performance sealing and vibration resistance in fluid and gas systems. But for teams seeking faster delivery and more cost-effective sourcing, Superlok provides a proven alternative offering the same 37° flare compatibility, system fit, and durability without the premium markup.
Superlok flared fittings are precision-machined to meet SAE J514 and ISO 8434-2 standards, ensuring full interchangeability with Swagelok®. Built from corrosion-resistant materials and tested for high-pressure, high-temperature conditions, these fittings are used in demanding applications like HVAC, fuel lines, mobile hydraulics, and industrial gas systems. Their vibration-resistant construction and leak-tight flare seat design offer consistent performance under mechanical stress and thermal cycling.
With wide U.S. availability and the same form, fit, and function as Swagelok®, Superlok flared fittings are a smart drop-in replacement for engineers and techs who want reliable parts without long lead times. From routine maintenance to full system installs, Superlok brings flexibility and confidence to any flare-based connection.
Try Our Legacy Brands Alternate Part Finder
Superlok flared fittings are fully interchangeable with Swagelok® and Parker® 37° flare fittings. They match in form, fit, and function, making them a drop-in comparable part for existing flare systems without needing to modify your setup.
Each fitting is manufactured to meet SAE J514 and ISO 8434-2 standards, with precision-machined flare seats and tight tolerances to ensure a leak-tight seal. These specifications guarantee compatibility across systems requiring reliable, high-pressure flare connections.
To confirm performance and fitment, SuperlokUSA provides official SGS-certified test documentation verifying interchangeability and pressure integrity. If you’re sourcing Swagelok® alternative flare fittings near you, Superlok delivers precision, speed, and proven field reliability.
Superlok flared fittings are trusted by professionals in industries where secure, high-pressure connections are critical especially in systems exposed to vibration, temperature fluctuation, or repeated servicing. These fittings are widely used in HVAC, fuel systems, mobile hydraulics, refrigeration, aerospace, and industrial gas transfer.
Engineered for durability and precise fluid control, Superlok flared fittings are manufactured to SAE J514 and ISO 8434-2 standards, ensuring reliable performance under pressure. Their 37° flare seat provides a leak-tight seal that holds up in demanding environments, while the corrosion-resistant construction ensures long service life even in exposed or harsh operating conditions.
From maintenance crews retrofitting gas lines to OEMs building mobile machinery, Superlok flare fittings are chosen for their strength, compatibility, and vibration-resistant sealing. Their proven reliability across critical industries makes them a go-to connection solution when failure isn’t an option.
SuperlokUSA maintains a deep inventory of 37° flared fittings, stocked and ready to ship across the U.S. From elbows and tees to O-ring and non-O-ring flare types, we carry a wide range of configurations to support urgent replacements and new builds alike. This reliable stock availability helps avoid long lead times often seen with Swagelok® and other suppliers. For industries working on HVAC systems, mobile hydraulics, or high-pressure gas lines, Superlok’s U.S.-based inventory ensures faster turnaround and less downtime so your team stays on schedule and your systems stay sealed.
With fulfillment centers strategically positioned across the country, SuperlokUSA offers fast, dependable shipping on all flared fittings. We work with top logistics providers to ensure every order arrives on time, without the costly freight surprises that come from overseas or backordered sourcing. Whether you need a handful of flare adapters or a full line of fittings for a fleet or facility, Superlok gets them to your door quickly. Compared to the delays and unpredictability of Swagelok®, Superlok provides a faster, more responsive experience for high-pressure system designers and maintenance teams.
