LCO2 Storage Tanks / Vacuum Insulated

CoVSP series vertical cryogenic storage tanks are designed and manufactured for CO2 and N2O services, inner vessels of which are of stainless steel. CoVSP series pressure containing vessels are insulated with a vacuum insulating material such as perlite. Vacuum insulated vessels are fitted with refrigeration units and pressure building vaporizer, depending on the customer requirement. The refrigeration unit condenses the boil off gas resulted from heat input.

The Highlights of ISISAN tanks are:

  • CoVSP series tanks are vertical, stationary, pressure vessels with vacuum insulation for long-term storage of cold liquids with high performance heat insulation and low evaporation rate.

  • High operational reliability provided with back pressure check valve on vent side and high pressure due the faulty operations is prevented.

  • In addition to our standard range of tanks, ISISAN can provide you a wide range of tailor made storage solutions up to 63,000 lt with a Maximum Allowable Working Pressure of 22 bars or other pressures as required.

  • ISISAN bulk tanks are designed and manufactured in accordance with and conforming to EC directive PED 97/23/EC and EN 13458 or other national pressure vessel codes as required.

  • ISISAN’s cryogenic tank manufacturing facility is ISO 9000 approved to assure the best quality in all aspects of our operation.

  • The support legs used are calculated according to UBC, Eurocode standards to resist high wind and earthquake loads.

  • Carefully designed stainless steel pipe work to reduce filling operation time. Appropriate bending of stainless steel pipe work means fewer connections, minimizing potential leaks, higher operability and less servicing.

  • High quality stainless steel pressure gauge, a differential pressure contents gauge or load cell is standard; with optional switches, transmitter and/or telemetry unit.

  • High performance safety system with dual relief valves by the diverter valves as standard.

  • Easily accessible valves and safety relief valve outlets directed away from the operating area enables safe operation.

  • Rugged internal supports for safe transportation by road, container or rail.

DESIGN CODE EN 13458 - PED 97/23/EC
Max. Allowable Working Pressure 22 Bar
Inner Vessel Material Stainless Steel (According to EN 10028-7)
Outer Vessel Material Carbon Steel (According to EN 10025 / EN 10028-3)
INSULATION Perlite & Vacuum
22 Bar Vacuum Insulated CO2 Storage Tanks
MAWP Gross Capacity Net Capacity
(%95 Filling)
Daily Evap.
Rate (CO2)
0D B L W H Empty
bar liters liters % / day mm mm mm mm mm kg
22 25000 23750 0.12 2750 7740 8490 3030 2870 14000
30000 28500 0.11 2750 8880 9630 3030 2870 17000
35000 33250 0.10 2750 10130 10880 3030 2870 19500
43000 40850 0.10 2500 14110 14560 2770 2700 23500
50000 47500 0.10 2650 14200 14650 2920 2700 26000

Vacuum Insulated CO2 Storage Tanks P&ID

ISISAN reserves the right to change above specifications without prior notive.

1 Fill Connection 13 Economizer Isolating Valve 35 Thermal Relief Valve
2 Bottom Film Valve 14 Back Pressure Regulator 40 Level Indicator
3 Gas Equalizing Valve 15 Pressure Regulator 41 Equalizer Valve
4 Try Cock Valve 17 Pressure Building Coil Valve 42 Low Pressure Shut Off Valve
5 Gas Equalizing Isolating Valve 19 Purge Valve 43 High Pressure Shut Off Valve
6 Bottom Fill Isolating Valve 20 Liquid Withdrawal Valve 44 Pressure Indicator
8 Liquid Return Valve 28 Liquid Withdrawal Connection 51 Evacuation Connection
9 Liquid Return Connection 30 Three Way Valve 52 Vacuum Safety Device
10 Pressure Building Coil 31/A Inner Vessel Safety Relief Valve
11 Gas Equalizing Connection 31/B Inner Vessel Safety Relief Valve