The cryogenic vessels have twin walls and insulation for the storage of the liquified gases in very low temperatures. The inner pressure container is designed to safely store the liquid, while at the same time is protected from over pressure with the help of an equipped relieving valve. Its vacuum insulation between inner and outer container permits the outside temperature to enter, resulting to a very low evaporation rate of the liquid and therefore minimum losses.

 

 

CRYOGENIC OXYGEN VESSELS
FLOW VALVE ADJUSTMENTS
Capacity    Duration ΟFF 0,25 0,5 0,75 1 1,5 2 2,5 3 4 5 6 8 10 12 15
  37 Lt Days/ hours 61Η
10Ω
61Η
10Ω
43Η
16Ω
29Η
21Η
20Ω
14Η
13Ω
10Η
22Ω

17Ω


11Ω

80Ω

15Ω

17Ω


19Ω

11Ω
  45 Lt Days/ hours 74Η
19Ω
74Η
19Ω
53Η
35Η
11Ω
26Η
14Ω
17Η
17Ω
13Η
10Η
15Ω

20Ω

15Ω


10Ω


15Ω


18Ω

 

 

CRYOGENIC NITROGEN VESSELS
Vessel characteristics
  4 5 10 20 30 50
Capacity
Nominal capacity (Lt) 4 5 10 20 32 50
Static evaporation rate (Lt per day) 0,19 0,15 0,18 0,18 0,22 0,49
Technical specifications
Neck cross section inch (mm) 1,40 (35) 2,18 (56) 2,18 (56) 2,18 (51) 2,50 (64) 2.50 (64)
Inner container height inch (mm) 7,8 (198) 10,5 (266) 13,5 (343) 13,7 (348) 1,40 (35) 1,40 (35)
Total heightinch (mm) 16,8 (426) 18,2 (462) 21,5 (546) 24,5 (622) 24,0 (610) 30,5 (775)
Outer diameter inch (mm) 7,3 (185) 8,8 (222) 10,3 (260) 14,5 (368) 17,0 (432) 17,0 (432)
Inner diameter inch (mm) 5,5 (139) 6,5 (165) 8,3 (210) 11,4 (289) 14,0 (356) 14,0 (356)
Empty weight of vessel lb. (Kg) 6 (2,7) 8 (4) 12 (5,4) 19 (9) 25 (11,4) 31 (14)
Gross weight lb. (Kg) 13 (6) 17 (8) 31 (14) 55 (25) 82 (37,2) 120 (54,4)

 

Physical propertie doxeio en

Chemical formula: N2
Molecular weight: 28,01
Gas density: (21°C ­ 1atm) 1.153 Kg/m3
Liquid density(1atm): 808,5 Kg/m3
Critical temperature: ­146,9 oC
Critical pressure: 33.999 KPa, abs
Critical density: 314,9 Kg/m3
Nitrogen purity: %99,999
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