Swagelok® Assembly-by-Torque Fittings (AbT)
Assembly-by-torque (AbT) fittings are designed to meet the advanced and evolving needs of the clean energy industry and support repeatable, high-volume assembly environments. Consistently achieve leak-tight connections that resist vibration.
Get Help Selecting AbT FittingsSwagelok® Assembly-by-Torque (AbT) fittings allow for quick, repeatable assembly using pre-set torque values, offering reliable performance even after repeated reassembly. The advanced-geometry, hinging-colleting design ensures secure tube gripping and gas-tight sealing. A unique double-notch nut design visually distinguishes AbT fittings from standard Swagelok fittings, reducing the risk of mix-ups. The dynamic zone feature controls axial displacement during assembly, ensuring consistent torque and first-time quality. Ideal for the Clean Energy sector, AbT fittings meet EC-79, ECE R110, ISO 15500, and NGV 3.1 standards, supporting applications in hydrogen, compressed natural gas (CNG), and liquid natural gas (LNG) systems.
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Assembly-by-Torque Fittings (AbT) are available in a variety of sizes, pressures, and materials.
Specifications
| Working Pressures | Up to 7500 psig (516 bar) |
| Working Temperatures | –40 to 248°F (–40 to 120°C) |
| Sizes Available Include | 1/4 in., 3/8 in., 1/2 in., 6 mm, 8 mm, 10 mm, and 12 mm |
Assembly-by-Torque Fittings (AbT) Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
Features: Assembly by torque—150 ±13 in.· lb (17 ±1.5 N·m); Repeated reassembly by torque—seal performance is maintained through repeated reassemblies of the tube fitting at the same torque value; Visual confirmation on initial assembly—AbT nut covers the dynamic wedge when complete pull-up is achieved; Easy to install—torque wrench required; Sizes: ¼ in. and 6 mm for use with 0.035 in. and 1 mm wall tube respectively; Fitting body configurations—unions, elbows, tees, crosses, and male SAE; Meets the requirements of ECE R110 and ECE R67
The Swagelok® Tube Fitting Advantage
Swagelok tube fittings are designed to meet your highest expectations for safety and dependability, featuring proven design, precise manufacturing, and superior raw materials.
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