Cryogenic Systems

Vertical Cryogenic Gas Storage for Atmospheric Gases Nitrogen/Oxygen/Argon

The new VT range of cryogenic gas storage tanks combines safety, flexibility and easy economical operation. The VT series includes 45 models with features industrial gas producers and users have asked for, but could not get until now. Primary among these features is a high performance, standard design with a wide range of options to meet most special needs.

The VT series is designed for long-term gas storage of liquefied air gases, including nitrogen, oxygen, and argon, as well as carbon dioxide and nitrous oxide. The VT series is available in gas storage capacities from 3.000 to 60.000 litres and maximum allowable working pressures of 19, 26 and 37 bar.

IGC’s other new series of tanks, the VTC series, provides high-efficiency gas storage, economical vacuum-insulated storage of liquefied carbon dioxide or nitrous oxide. All pressure tanks are in accordance with EN, AD-Merkblätter or other national pressure tank codes, as required. Pressure tanks outside this range are available upon request.

Finally, IGC manufactures customized vertical and horizontal pressure tanks with capacities up to 560.000 liters. IGC can also supply vaporizers, vacuum insulated pipeline and other components needed to create a complete “customer” installation.

Further details on our VTC series below…

GENERAL INFORMATION

Benefits of the VT Series

Inner Vessel – stainless steel for cryogenic temperatures with optimized design for lighter weight

Outer Jacket – a combined leg and lifting lug system designed for safe transport, easy lifting and low cost erection using a single crane

Insulation – a proven high quality vacuum-perlite system with molecular sieve adsorber

Piping – stainless steel piping for reliability and long life, ergonomically arranged workplace, flow diagram and gauges at eye level, easily accessible valves and safety relief valve outlets directed away from the operating area

Valves – standard with bronze bodies and screwed connections (other valves, such as stainless steel and/or welded-on are optional)

Pressure Control – an easily adjustable multifunction regulator serves as pressure regulator, economiser and thermal-relief valve. An aluminum pressure building coil is standard

Instrumentation – high quality pressure gauge and differential pressure contents gauge are standard with optional switches, transmitter and/or telemetry unit

Safety – tanks are equipped with dual relief valves with a variety of options, including additional relief valves and/or rupture discs

Pump Options – pump connection with a thermo-siphon is available as an option

Cleanliness – all tanks and their components are cleaned and certified for oxygen service

Outer Finish – choice of two durable corrosion resistant white paints, including a new low VOC paint or a standard 2-stage epoxy-polyurethane paint

Transport – rugged internal supports allow for safe transportation by road, rail or container

SPECIFICATION - VT2 - VT25

Specifications

Type VT2 VT3 VT5 VT6 VT9 VT11 VT16 VT21 VT25
Gross Volume Liters

2000

3400

4700

6100

8700

11200

15900

20700

25400

Net Capacity (95% Filling) 1) Liters

1900

3200

4500

5800

8300

10600

15100

19700

24200

LIN kg

1540

2590

3640

4690

6710

8560

12200

15920

19550

LOX kg

2170

3650

5140

6620

9480

12110

17240

22500

27640

LAR kg

2670

4500

6320

8150

11670

14900

21220

27690

34010

LN20 kg

2010

3380

4750

6120

8760

11190

15950

20800

25560

LCO2 2) kg

2100

3540

4970

6410

9170

11720

16690

21780

26750

Daily Evap Rate LOX 3) %/d

0.45

0.39

0.29

0.29

0.26

0.23

0.21

0.19

0.18

Max withdrawal rate LOX 4) 5) nm3/h

470

590

Max withdrawal rate LCO2 6) nm3/h

902

902

 

Weight, empty

VT2 VT3 VT5 VT6 VT9 VT11 VT16 VT21 VT25
19barg kg

2700

3400

4000

4700

6000

7000

8800

10600

12500

26barg kg

2900

3600

4300

5000

6500

7500

9500

11500

13500

37barg kg

3100

3900

4700

5500

7200

8400

10800

13100

15500

Diameter (D) mm

1800

2200

Overall Width (A) mm

2050

2200

Overall depth (B) mm

2100

2240

Height (7 (H) mm

3140

3940

4960

5770

7600

61008)

7930

9760

11590

Notes:
1) Filling 95% (equilibrium state at 1,013 bar)
2) Fillling 95% (equilibrium state at 10 barg)
3) Based on pressure 100 kPa and 15°C ambient temperature
4) For N2 and Ar stated rates to be multiplied by: N2=0,88 / Ar=1,01
5) Stated rates are for short term withdrawal (up to 3 hrs) at tank pressure 10 barg
6) Stated rates are with the 6 kW electrical heater at tank pressure 15 barg
7) Tanks with thermosiphon are approx. 790 mm higher
8) In case of container transport 200 mm shorter
9) Design and specifications are subject to change without prior notice.

SPECIFICATION - VT26 - VT60

Specifications

Type VT26 VT31 VT37 VT43 VT32 VT41 VT50 VT60
Gross Volume Liters

25700

31600

37500

43400

31900

41100

50300

59500

Net Capacity (95% Filling) 1) Liters

24400

30000

35600

41200

30300

39100

47800

56500

LIN kg

19720

24240

28760

33290

24480

31590

38620

45650

LOX kg

27860

34260

40660

47050

34600

44650

54590

64520

LAR kg

34290

42170

50040

57910

42590

54960

67180

79410

LN20 kg

25770

31680

37590

43510

32000

41290

50480

59660

LCO2 2) kg

26970

33160

39350

45540

33490

43220

52840

62460

Daily Evap Rate LOX 3) %/d

0.15

0.14

0.14

0.14

0.14

0.13

0.12

0.11

Max withdrawal rate LOX 4) 5) nm3/h

670

860

Max withdrawal rate LCO2 6) nm3/h

902

902

 

Weight, empty

VT26

VT31 VT37 VT43 VT32 VT41 VT50 VT60
19barg kg

14200

16700

19100

21600

15900

19200

22500

25700

26barg kg

15600

18400

21100

23800

17500

21100

24800

28300

37barg kg

17600

20700

23800

26900

20400

24700

29100

33400

Diameter (D) mm

2500

3000

Overall Width (A) mm

2500

3000

Overall depth (B) mm

2540

3040

Height (7 (H) mm

9880

11720

13540

15370

8320

10150

11980

13810

Notes:
1) Filling 95% (equilibrium state at 1,013 bar)
2) Fillling 95% (equilibrium state at 10 barg)
3) Based on pressure 100 kPa and 15°C ambient temperature
4) For N2 and Ar stated rates to be multiplied by: N2=0,88 / Ar=1,01
5) Stated rates are for short term withdrawal (up to 3 hrs) at tank pressure 10 barg
6) Stated rates are with the 6 kW electrical heater at tank pressure 15 barg
7) Tanks with thermosiphon are approx. 790 mm higher
8) In case of container transport 200 mm shorter
9) Design and specifications are subject to change without prior notice.

IMAGES & DIMENSIONS

Gas Storage and Pressure Tanks diagram 1 Gas Storage and Pressure Tanks diagram 2

 

Nomenclature (standard model – not all options shown)
A1 Fill connection
LFD Liquid outlet (VT3-VT9)
LI Level indicator PBC Pressure building coil
PI Pressure indicator
R1 Pressure control valve / Economizer
S1 Safety valves, inner vessel
S2 Vacuum safety device
S5 Thermal relief valve, fill line
V1 Bottom fill valve V2 Top fill valve
V3 Isolating valve, bottom fill
V4 Isolating valve, top fill
V5 Valve, vapor vent / gas outlet
V6 Valve, trycock
V9 Valve, external vaporizer
V12 Valve, evacuation
V14 Valve, safety relief selection
V22 Valve, liquid outlet (VT11-VT60)
V28 Valve, fill line drain
V50 Valve, LI vapor phase
V51 Valve, LI liquid phase
V52 Valve, LI equalization