500L Horizontal Liquid Nitrogen Tank

At DSW, we have extensive experience in designing, manufacturing, assembling, and commissioning liquid Nitrogen Tanks, and nitrogen dewar, including diverse nitrogen tank sizes that fit our client’s needs.

Medium pressure cryogenic container, nitrogen dewars 

This 500 Liter Horizontal liquid nitrogen tank, or LN2 tank, provides an easy way to store and transport cryogenic industrial/laboratory gases.
This 500 Liter liquid nitrogen LN2 dewar offers 2.3MPA, the standard in many industries that use cryogenic liquids.

Model		DPL-175	DPL-195	DPL-210	DPW-499
size mm		Φ505×1551mm	Φ505×1675mm	Φ505×1761mm	2113×760×995mm
working pressure(MPa)		1.37	1.37	1.37	1.59
Relief valve take-off pressure(MPa)		1.59	1.59	1.59	1.89
Bursting pressure of the bursting disc(MPa)		2.41*	2.41*	2.41*	2.41(2.86*)
Geometric volume (L)		175	195	210	499
Effective volume(L)		160	180	195	460
Evaporation rate (liquid nitrogen)		2.10%	2.02%	1.99%	1.70%
Empty cylinder weight(kg)		125	135	140	345
Filling Medium	O2(kg)	170	190	205	478
	N2(kg)	120	134	145	334
	Ar(kg)	208	232	250	585
	LNG(kg)	70	78	84	196

Liquid Nitrogen Storage Tank Sizes

High pressure Horizontal Liquid Nitrogen Tank,  Cryogenic dewars

Model		DPL-175	DPL-196	DPL-210	DPW-499
size mm		Φ505×1551mm	Φ505×1676mm	Φ505×1761mm	2113×760×995mm
working pressure(MPa)		2.3	2.3	2.3	2.5
Relief valve take-off pressure(MPa)		2.41	2.41	2.41	2.86
Bursting pressure of the bursting disc(MPa)		3.62*	3.62*	3.62*	3.62(4.14*)
Geometric volume (L)		175	195	210	499
Effective volume(L)		160	180	195	460
Evaporation rate (liquid nitrogen)		2.10%	2.02%	1.99%	1.70%
Empty cylinder weight(kg)		143	152	160	405
Filling Medium	O2(kg)	170	190	205	478
	N2(kg)	120	134	145	334
	Ar(kg)	208	232	250	585
	LNG(kg)	70	183	197	460

Liquid Nitrogen Tanks may take several forms, including open buckets, flasks with loose-fitting stoppers, and self-pressurizing tanks. All dewars have walls constructed from two or more layers, with a high vacuum maintained between the layers.

Horizontal Ln2 Tank

High-purity nitrogen (up to 99.999%) will be used for strength testing.
Finally, advanced helium mass spectrometer leak detectors (with precision up to 2×10-9Pa.L/s) will be used to conduct Helium mass spectrometer leak detection.
The inner containers of the storage tanks will be passivated by overall pickling to meet the cleanliness requirements for dangerous goods.
Imported ultraviolet black light lamps will ensure no oil stains and other organic impurities in the inner containers.
After cleaning, the inner and outer containers will be assembled in less than 2.5 hours.
After assembling, the inner containers and interlayers will be filled with nitrogen to protect them from dust and organic impurities to ensure cleanliness.
The inner and outer surfaces of the outer containers will be subject to overall sandblasting treatment to meet the requirements of the Sa-2.5 standard.
When the surfaces of steel plates show a metallic color, a vacuum cleaner will suck off the dust adhered to the surface to ensure the vacuum degree in the interlayer further.
Special high-quality perlite is used as the insulation material in the interlayer.
The perlite will be treated using our company’s unique process before being in the interlayer.
All the internal cylinders, after being manufactured, will be subject to gas-tight and pressure performance tests.
Both the internal and outer cylinders will be subject to rigorous Helium mass spectrum leak detection.
After production, all the pipe openings will be opened to carry out nitrogen purging and replacement to meet the oxygen usage standard.
After this, all the pipelines and valves will be sealed, and the tanks will be filled with 0.2MPa high-purity nitrogen to protect the Liquid Nitrogen Tank.