Insulon® Vacuum Jacketed Hose, Low Pressure, MLI, 1/4″ ID, with Outer Braid

Insulon® Vacuum Jacketed Hose, Low Pressure, MLI, 1/4″ ID, with Outer Braid. MLI variants add proprietary high-density multi-layer insulation inside the vacuum annulus, blocking all three modes of heat transfer: convection, conduction, and radiation. MLI increases outer diameter and minimum bend radius compared to Standard variants but does not affect pressure ratings or operating temperature range. Recommended for: cryogens at the lowest temperatures (LHe, LH2), continuous cryogenic flow (hours/days), chiller fluids below -80°C, or any application where radiation heat gain is significant. Low Pressure Insulon® hose rated to 72 psi at RT (≤100°F / 38°C). MAWP decreases as fluid temperature increases above 100°F; see derating table below. Typical applications: chiller supply/return lines, LN2 transfer with transient flow, liquid CO2 service, low-pressure process gas lines. The stainless steel outer braid is added over the standard Insulon® hose vacuum jacket, providing abrasion resistance and physical protection for rugged or high-movement environments including: truck and trailer sample lines, bulk gas delivery and mobile LOX/LIN/LAr transfers, temporary lines across concrete or gravel, and mobile dewar connections with frequent connect/disconnect cycles. The outer braid does not affect bore size, pressure rating, insulation level, operating temperature range, or compatible fluids. Compatible Fluids for Insulon® Vacuum Jacketed Hose Cryogenic liquids: liquid nitrogen (LN2), liquid helium (LHe), liquid argon (LAr), liquid oxygen (LOX), liquid natural gas / liquid methane (LNG / LCH4), liquid CO2 Hydrogen: liquid hydrogen (LH2) and gaseous hydrogen (GH2). Fully annealed materials resist hydrogen embrittlement. Thermal fluids and coolants: glycol/water mixtures, Syltherm 800, Syltherm XLT, Dowtherm Q, Dowtherm J, other synthetic heat transfer fluids, cryo-chiller fluids High-temperature fluids: steam, hot air, exhaust gases, process heating oils Specialty and process gases: GN2, GHe, GAr; semiconductor precursor, carrier, and deposition gases Corrosive media: add a fluoropolymer liner (PTFE, PFA, FEP) for broad compatibility with corrosive process fluids If system pressure at operating temperature exceeds MAWP, contact Concept Group engineering. Insulon® Hose MAWP by Fluid Temperature, 1/4″ ID, Low Pressure MAWP is constant from cryogenic temperatures through room temperature (≤100°F / 38°C). For fluid temperatures above 100°F, use the derating table below. Round UP to the next 100°F row for conservatism (e.g., a 320°F system uses the 400°F row). Max Fluid Temp (°C) Max Fluid Temp (°F) MAWP (psi), 1/4″ ID 38 100 72 93 200 65 149 300 61 204 400 56 260 500 55 316 600 54 371 700 53 427 800 52 482 900 48 538 1000 33 593 1100 21 649 1200 13 704 1300 9 760 1400 4 816 1500 3 Optional Add-Ons End fittings: Options include but are not limited to Compression Adapters (BSPT, NPT); Compression Reducers; Compression Unions (Straight, Elbow 45-deg, Elbow 90-deg, Tees); Flanges (ANSI, CF, KF, QF); Flared Swivel Nuts (CGA-295 Brass, CGA-295 Stainless Steel, JIC 37-deg, Precision AN 37-deg, SAE 45-deg); Metric (M16x1, M24x1.5, M30x1.5, M38x1.5); Tri-Clamp; VCR; and more. Add fluoropolymer liner (PTFE, PFA, FEP) for applications that require a smooth internal bore and/or non-metallic wetted surfaces Pressure test certificates available as add-on Oxygen cleanliness certificates available as add-on