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The ISO VAC 20 tank has been designed as a standard 20ft ISO container for the safe storage and transport of refrigerated liquefied air gases. A new frame arrangement with Blair corner castings, & lockable valve protection cabinet, containing the valves, gauges, vacuum check gauge connection and a separate document holder.

The ISO VAC 20 air gas range of tanks can be produced with working pressures ranging from 17 to 24 Bar and can be used for the transport of liquid nitrogen, oxygen & argon. Other tank options include CO2, LNG, Ethylene & Ethane also available.

This tank has approvals for road, rail and sea transport

This tank can also be configured to accept cryogenic transfer pumps.

The ISO VAC also features high vacuum super-insulation, stacking capability 9 units high to ISO 1496-3 (192,000 kg max), full set of decals (including logo’s where supplied by customer), integral pressure building system, document holder and various pipe work and valve options to offer maximum versatility to end user and operator.


Specification ISO VAC 5500 17 Bar ISO VAC 5500 24 Bar
Nominal Capacity (Ltr) - Gross 20,000 20,000
Nominal Capacity (Ltr) - Net 95% 19,000 19,000
Pressure 17.0 Bar 24.0 Bar
Tare Weight kg 7,875 9,075
Holding Time Days * 81 85



Length (mm) Width (mm) Height (mm)
  6,058 2,438



Materials / Specifications  
Inner Shell

Stainless Steel

Outer Jacket Carbon Steel 
Skid Carbon Steel
Pipe Work Tp.316 Stainless Steel Sch. 10
Paint Specification

Shot Blast SA 2.5, Zinc Rich Primer 50 microns, Epoxy High Build 125

microns, Polyurethane Top Coat 50 microns

Standard Colour : White

Custom paint specification on request

Design Approval(s)**

EN 13530, ADR/RID, IMDG, IMO, CSC, Option - ASME’U’/CFR, AS 1210


Maximum Evaporation Rate <0.4% per day


Inner Shell -196°C to +50°C, Outer Jacket -20°C to +50°C

(Option -40 to +50) material


Inner Shell -196°C to +50°C, Outer Jacket -20°C to +50°C

(option -40 to +50°C) material 

Corner Castings

ISO Standard 1161 Blair BLRC20100 / 20000


Blind flanges as standard. Custom specification on request

* Holding times to EN 12213

** Design approvals may vary depending on options and country of operation. For details, please contact Technical Department.