Insulon Vacuum Jacketed High Pressure Hose

are compact, flexible, high-performance insulated hoses for cryogenic, cold, and high-temperature fluid transfer. Engineered with proprietary Insulon vacuum technology, this high pressure hose helps reduce heat gain, heat loss, condensation, boil-off, and unsafe external surface temperatures in demanding laboratory, research, industrial, and process environments. Unlike traditional vacuum jacketed hose designs that may require pump-down maintenance, Insulon hose uses a hyper-deep vacuum space designed for long-term thermal insulation performance without routine pump-down service. The Standard version is the best choice when the application requires high pressure capability, excellent thermal performance, a smaller outside diameter, lighter handling, and easier routing than larger MLI vacuum jacketed hose assemblies. For maximum thermal insulation performance, see the Insulon High Pressure Hose with MLI version.

Applications

Cryogenic Fluid Transfer and LN2 Systems

• Liquid nitrogen transfer lines, cryogenic supply lines, and low-temperature process connections
• Industrial gas handling, cryogenic cooling, cryo-freezers, and laboratory gas transfer
• Cold fluid transfer where reduced condensation, dripping, frost, and boil-off are important

High Temperature Process Heating and Cooling

• Hot air, steam, exhaust gases, process heating oils, and high-temperature transfer lines
• Temperature control unit supply and return lines for research, pilot plant, and production equipment
• Applications where external hose surface temperature control improves operator safety and equipment reliability.    

Research, Semiconductor, Clean Manufacturing, and Laboratory Use

• Analytical instruments, detector cooling, high-power lasers, specialty gas transfer, and vacuum-adjacent systems
• Semiconductor fabrication support lines, process gases, and controlled thermal transfer applications
• Clean manufacturing environments requiring stainless steel construction and configurable end connections

Aerospace, Hydrogen, Energy, and Advanced Engineering

• High pressure cryogenic service, gaseous hydrogen, liquid hydrogen, and advanced thermal management applications
• Aerospace test systems, propulsion support lines, energy research, and demanding engineering environments
• Custom engineered configurations where pressure, temperature, hose length, and fitting selection must be reviewed together

Features

• High pressure vacuum jacketed hose design supports demanding fluid transfer applications up to 750 psi, depending on hose diameter and fluid temperature.
• Proprietary Insulon vacuum insulation improves thermal energy efficiency for cryogenic, cold, and high-temperature transfer lines.
• Hyper-deep vacuum space is engineered to eliminate routine pump-down maintenance and reduce downtime compared with conventional vacuum jacketed hoses.
• Standard performance construction provides a smaller outside diameter, lighter weight, and greater routing flexibility than MLI vacuum jacketed hose.
• 316/316L stainless steel construction provides an inert, durable wetted path for many cryogenic, gas, and process fluid applications.
• Configurable end fittings simplify integration into laboratory, process, industrial gas, and OEM equipment systems.
• Low springback and compact geometry help reduce mechanical stress on connections, joints, valves, and instruments.
• Optional oxygen cleanliness and special fitting configurations are available for applications requiring additional documentation or controlled cleanliness.

Specifications

• Insulation Reliability with Thermal Cycling: 

• >20,000 cycles at 450°C without drop in insulation performance.
• Cycle was defined as a 3-minute ramp up during which the component reaches steady-state, followed by a 2-minute cool-down period. Ambient temperature was 23°C. 

High Pressure Standard Hose Dimensions and Room-Temperature MAWP

High Pressure MAWP Derating by Maximum Fluid Temperature

For high-temperature service above 100°F (38°C), verify the maximum allowable working pressure for the selected hose ID before ordering. Do not exceed the MAWP for the selected hose size and maximum fluid temperature.

Tube Stub Dimensions

Optional Accessories

• Optional 316 stainless steel tube stubs for weldable connections
• Compression union end fittings, brass, stainless

• Compression male NPT end fittings, brass or stainless, compatible with all hose diameter options.
• JIC 37 degree fittings
• CGA-295 fittings for compatible 1/2 in hose configurations, male or female

• Model 80, 81 and 82 phase separator options for compatible 1/2 in hose configurations

• Custom fitting options such as NPT, BSPT, flared swivel nuts, flanges, and other special connections upon request
• ASTM G93 Level A oxygen cleanliness available upon request
• Fluoropolymer liner options may be available for selected corrosive media or smooth-bore requirements; request application review before ordering

FAQs

What is the difference between Insulon High Pressure Standard Hose and Insulon High Pressure Hose with MLI?

The Standard version uses Insulon vacuum insulation in a compact, lighter, more flexible form factor. The MLI version adds proprietary high-density multi-layer insulation inside the vacuum space for maximum thermal insulation performance, but it also increases the outside diameter and bend radius. Choose Standard when handling, routing space, and compact geometry are priorities. Choose MLI when maximum thermal performance is the overriding requirement.

What pressure can the High Pressure Standard hose handle?

At cryogenic, cold, and room temperature service through 100°F (38°C), HP Standard hose is rated up to 750 psi for 1/4 in, 3/8 in, and 1/2 in ID sizes, 600 psi for 3/4 in ID, and 500 psi for 1 in ID. For fluid temperatures above 100°F (38°C), MAWP decreases and must be checked against the high pressure derating table.

Can this hose be used for liquid nitrogen transfer?

Yes. Insulon vacuum jacketed hose is designed for cryogenic fluid transfer, including liquid nitrogen applications, when the selected hose ID, pressure rating, end fittings, cleanliness level, and system conditions are appropriate. For continuous cryogenic service, extremely low-temperature cryogens, or maximum boil-off reduction, compare the Standard version with the MLI version before ordering.

Can this hose be used for high-temperature fluids, hot air, or steam?

Yes. Insulon High Pressure Standard Hose is rated for operation up to 1,500°F (815°C), but pressure capability decreases as maximum fluid temperature increases. For hot air, steam, exhaust gas, and process heating oil applications, verify MAWP at the maximum fluid temperature and confirm fitting compatibility before ordering.

Does Insulon hose require pump-down maintenance?

No. Insulon vacuum jacketed hose is engineered with a hyper-deep vacuum space that does not require routine pump-down maintenance. This is a key advantage for facilities that want to reduce downtime, avoid scheduled pump-down service, and maintain consistent thermal insulation performance.

How do I choose the correct hose size, length, and fittings?

Select the hose ID based on flow requirement, pressure, allowable pressure drop, bend radius, and available routing space. Choose length based on actual installed path, allowing for bend radius and connection geometry. End fittings should match the system connection at each end. For high-temperature service, oxygen service, hydrogen service, corrosive media, or unusual fittings, contact LabgearUSA before ordering.

Is standard Insulon hose suitable for cryo-compressed hydrogen?

Standard Insulon hose variants are not appropriate for cryo-compressed hydrogen when system pressure exceeds the MAWP of the selected standard hose size and temperature condition. Cryo-compressed hydrogen or any pressure above the published MAWP requires custom engineering review before ordering.

Warranty

Manufacturer warranty applies to defects in materials and workmanship, subject to the manufacturer’s stated warranty period and terms. Warranty support is generally limited to repair or replacement at the manufacturer’s option and does not cover product misuse, modification, damage, improper installation, or operation outside published specifications. For warranty support, contact LabgearUSA with your order number, hose configuration, application details, photos if applicable, and a description of the issue before returning any product.

Ordering

Select the hose diameter, length, End Fitting 1, and End Fitting 2 options on this page, then click Add to Cart. For custom hose lengths, special end fittings, oxygen cleanliness, high-temperature operation, hydrogen service, corrosive media, pressure above the published MAWP, or dynamic hose movement, contact LabgearUSA at +01 650-254-8333 before ordering so the configuration can be reviewed for the application. Insulon vacuum jacketed hoses are made to order, and custom configurations may require additional lead time.