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Swagelok Medium-Pressure Tube Fittings

Swagelok Medium-Pressure Tube Fittings. Pressures up to 15 000 psig (1034 bar). Product Features. Reliable leak-tight installation and reassembly Gas seal Small molecule applications Variety of applications Cold-drawn 1/8-hard tubing Heavy-wall annealed tubing

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Swagelok Medium-Pressure Tube Fittings

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  1. Swagelok Medium-Pressure Tube Fittings Pressures up to 15 000 psig (1034 bar)

  2. Product Features • Reliable leak-tight installation and reassembly • Gas seal • Small molecule applications • Variety of applications • Cold-drawn 1/8-hard tubing • Heavy-wall annealed tubing • Quick and easy installation • Assembly by one full turn • Can also be assembled by torque • Gaugeable • Cartridge assembly

  3. Tube Fitting Specifications • Working Pressure • Vacuum to 15 000 psig (1034 bar) • Temperature range • – 40 to 1000°F (– 40 to 537°C)* • 316 stainless steel construction *Elevated temperature factors apply

  4. Front Ferrule Dynamic Wedge Back Ferrule Leak-Tight Gas Seal Female Body Tube Grip Male Nut Leak-Tight Seal

  5. Medium-Pressure Tube Fitting Hinging and Colleting Action

  6. Medium-Pressure Tube Fitting Hinging and Colleting Action Tube Grip

  7. Medium-Pressure Tube Fitting Hinging and Colleting Action Gas Seal

  8. Medium-Pressure Tube Fitting Hinging and Colleting Action Vibration Resistance

  9. Surface Carburization Technology • Low-temperature carburization • Patented Swagelok heat treating process • Tool steel-like hardness • Enhanced corrosion resistance • Improved wear resistance

  10. 1200 900 Hardness (HV25) 600 300 0 40 50 10 30 20 Distance from surface (μm) Low-Temperature Carburization Increases the hardness of 316 SS more than 300 %

  11. LTCSS Pitting Onset 316 SS Corrosion Resistance Pitting corrosion resistance similar to high nickel alloys 1600 1200 800 Potential (mV, SSC) 400 0 -400 1ⅹ10-11 1ⅹ10-7 1ⅹ10-2 1ⅹ10-9 1ⅹ10-5 1ⅹ10-1 Current Density (A/cm2)

  12. Similar to nickel alloys Corrosion Resistance Untreated Specimen LTCSS Carburized Specimen ASTM G61 test for electrochemical pitting potential (Ep) in chloride solution

  13. Carburization Summary • Hinging and colleting action • Robust tube grip • Leak-tight gas seal • Vibration protection • Corrosion resistant • Wide variety of system media • Extraordinarily hard • Works on a wide range of tubing materials and hardness • Austenite ductility with carbide-like hardness • Wear resistant • Allows for remakeability

  14. Dynamic Wedge • Assembly by torque • Gaugeable and remakeable

  15. Assembly by Torque Finite Element Analysis of Assembly Assembly versus Nut Displacement Torque Nut Displacement

  16. Preassembled Cartridge • Correct ferrule and nut orientation • Proper installation into the body • Visual confirmation that both ferrules are present

  17. Medium-Pressure Ferrules • Visually distinct • Color-coded for visual distinction • Industry standard for hydrogen • Patented low-temperature case hardened

  18. Cartridge Assembly

  19. Cartridge Assembly

  20. Cartridge Assembly

  21. Cartridge Assembly

  22. Cartridge Assembly

  23. Cartridge Assembly

  24. Cartridge Assembly

  25. Cartridge Assembly

  26. Cartridge Assembly

  27. Cartridge Assembly

  28. Cartridge Assembly

  29. Installation

  30. Product Offering • Fittings and adapters • 1/4, 3/8, and 1/2 inch sizes • Straights and shapes

  31. Product Testing Product Test Reports (PTRs) The big three: • Gas seal • Vibration resistance • Tube grip • European Integrated Hydrogen Project (EIHP) 12B • Continuous testing of randomly selected samples from production

  32. Summary • Easy installation – no special tools required • Assembly by one full turn or torque • Leak-tight gas seal with initial installation and with each reassembly • Consistent gaugeability upon initial installation • Simple two-piece construction, body and cartridge • Leak-tight performance on heavy-wall annealed or cold-drawn 1/8-hard stainless steel tubing

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