Cryogenic ISO Tank – International Standard Cryogenic Transport Vessels

Safe, Efficient, and Global Transport of Cryogenic Liquids

Cryogenic ISO Tank - International Transport

Introduction

A Cryogenic ISO Tank is a specialized pressure vessel designed for the safe transportation of cryogenic liquids such as liquid nitrogen (LN₂), liquid oxygen (LOX), liquid argon (LAr), and liquefied natural gas (LNG). Built to ISO standards, these tanks are widely used for international shipping by road, rail, or sea, providing a robust, compliant, and efficient solution for global cryogenic logistics.

At NORDSTONE., we design and manufacture ASME-certified Cryogenic ISO Tanks with advanced vacuum insulation, high-strength construction, and international compliance, including ISO 1496/3, ASME Section VIII, PED, and ADR/RID standards.

What is a Cryogenic ISO Tank?

A Cryogenic ISO Tank is a double-walled, vacuum-insulated container mounted on an ISO-standard frame, designed for safe, long-distance transport of liquefied gases at ultra-low temperatures. The inner vessel holds the cryogenic liquid, while the outer shell provides mechanical strength and protection during handling and shipping. The vacuum insulation minimizes heat ingress, reduces boil-off, and ensures pressure stability during transport.

Key components include:

  • Inner storage vessel constructed from stainless steel or nickel-based alloys
  • Outer protective shell integrated into an ISO-standard frame for transport
  • Vacuum insulation with multilayer reflective layers to minimize thermal losses
  • Pressure relief valves and rupture discs for safety
  • Level, pressure, and temperature monitoring instrumentation
  • Inlet/outlet connections for filling, dispensing, and venting
  • Shock-absorbing mounts and corner fittings for safe road, rail, and sea transport

These tanks are essential for industrial, medical, and energy sectors, where cryogenic liquids must be transported safely across long distances.

Types of Cryogenic ISO Tanks

Standard Cryogenic ISO Tanks

  • ISO 1496/3 compliant for international shipping
  • Suitable for LN₂, LOX, LAr, and LNG transport
  • Standard 20ft or 40ft ISO container dimensions

Mobile Road & Rail ISO Tanks

  • Designed for intermodal transport
  • Equipped with ISO corner fittings for container stacking and handling
  • ADR/RID compliant for hazardous material transport

Custom Cryogenic ISO Tanks

  • Tailored for specific liquid types, capacity, and operating pressures
  • Optimized insulation and boil-off reduction for extended transport
  • Specialized configurations for unique transport requirements

LNG ISO Tanks

  • High-capacity cryogenic tanks for liquefied natural gas transport
  • Includes specialized vapor recovery and pressure management systems
  • Designed for −162°C LNG storage and transport

Key Features of Cryogenic ISO Tanks

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International Standard Compliance

  • ISO 1496/3 compliant frames for intermodal transport
  • ASME Section VIII, PED, NB, and ADR/RID certified
  • Global shipping compliance for road, rail, and sea transport

Ultra-Low Temperature Operation

  • Designed to store and transport cryogenic liquids at temperatures as low as −196°C
  • Vacuum insulation with multilayer reflective barriers to minimize boil-off
  • Multiple liquid compatibility: LN₂, LOX, LAr, LNG

Pressure Containment & Safety

  • Design pressures: 5 to 25 bar (customizable)
  • Equipped with pressure relief valves, rupture discs, and venting systems
  • Robust vessel construction to handle thermal contraction and external mechanical stresses

Material Selection

  • Inner vessel: SS304/304L, SS316/316L, or nickel-based alloys
  • Outer shell: Carbon steel or stainless steel with protective coatings
  • Vacuum insulation barriers made of multilayer reflective materials
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Operational Efficiency

  • Low boil-off rate for extended transport durations
  • Integrated level, temperature, and pressure instrumentation
  • Optional vaporizer for gaseous cryogenic delivery at destination
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Safety & Reliability

  • Shock-absorbing mounts for road, rail, and sea transport
  • Corner fittings for secure ISO-standard handling
  • Non-condensable gas venting and emergency relief systems

Design & Engineering Considerations

Thermal Design

  • Vacuum insulation analysis for minimal heat ingress
  • Boil-off gas calculation and vent sizing
  • Material selection for cryogenic compatibility to prevent embrittlement

Mechanical Design

  • Pressure vessel design per ASME Section VIII & PED standards
  • Stress analysis for transport shocks, thermal contraction, and internal pressure
  • Reinforced nozzle, flange, and ISO corner fitting design

Operational Parameters

  • Storage Temperature: −196°C (LN₂) to −162°C (LNG)
  • Design Pressure: 5 to 25 bar (customizable)
  • Capacity: 10,000 L to 50,000 L (or project-specific)
  • Dimensions: ISO-standard 20 ft or 40 ft container footprint
  • Frame: Integrated skid or frame for transport compliance

Applications

Industrial & Chemical
  • • Transport of nitrogen, oxygen, argon gases
  • • High-purity gas delivery for critical processes
  • • Industrial gas supply chain logistics
Medical & Healthcare
  • • Safe supply of LOX and LN₂ for hospitals
  • • Remote medical installations and emergency facilities
  • • Oxygen distribution networks
Energy & LNG
  • • Intermodal transport of LNG
  • • Cryogenic fuel delivery for power plants
  • • Global energy supply chains
Research & Aerospace
  • • Liquid oxygen for aerospace applications
  • • Laboratory research material transport
  • • Defense and space program logistics

Quality Assurance & Testing

All Cryogenic ISO Tanks undergo stringent QA/QC procedures:

Pressure Testing
  • Hydrostatic testing
  • Pneumatic testing
Non-Destructive Testing
  • Ultrasonic testing (UT) for weld and shell integrity
  • Radiographic testing (RT) for weld inspection
Transport & Structural Testing
  • Shock and vibration testing
  • Corner fitting strength testing
  • Leak testing for vacuum insulation
Certification & Documentation
  • Material traceability (MTC – EN 10204 3.1)
  • ASME U-stamp, NB, PED, ADR/RID certification
  • Third-party inspection (TUV, BV, Lloyds, DNV, SGS)

Optional Features & Packages

  • Custom vacuum insulation and multilayer reflective barriers
  • Integrated instrumentation for level, temperature, and pressure monitoring
  • Vaporizer for gaseous cryogenic delivery at destination
  • Skid-mounted or modular frame options
  • Safety relief valves, rupture discs, and emergency venting systems
  • Extended-range boil-off reduction for long-duration transport
  • GPS tracking and remote monitoring systems

Why Choose NORDSTONE.?

  • 20+ years of expertise in cryogenic transport and pressure vessel design
  • Advanced thermal, mechanical, and vacuum insulation capabilities
  • ASME-certified fabrication with global compliance
  • Custom-engineered Cryogenic ISO Tanks for industrial, medical, LNG, and aerospace applications
  • Full QA/QC, documentation, and third-party inspection support
  • Proven reliability in ultra-low temperature, high-pressure, and intermodal transport conditions
  • Global logistics expertise for international shipping compliance
LOX Cryogenic Tank LNG Storage Vessel
Ready to Discuss Your Cryogenic ISO Tank Requirements?

Contact our engineering team for custom solutions and quotations.

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