MVE CHART is a professional company that designs and manufactures various cryogenic liquid vacuum insulated storage equipment, covering the entire supply chain of cryogenic liquids. It is also the world's oldest producer of ultra-low temperature equipment. The MVE brand Dewar flasks under Chart have a production history of over 40 years in producing ultra-low temperature insulated Dewar flasks. Chart MVE's products have been widely used worldwide due to their high quality, long lifespan, and low consumption of low-temperature media.

The Dura Cylinder Dewar flask liquid nitrogen tank from Chater is mainly designed for efficient liquid nitrogen supply and efficient gas use. The liquid storage and preservation time of the Dewar flask is longer, the static volatilization rate is lower, and the effective utilization rate is higher. Its exceptional insulation structure results in minimal or no product loss over a period of time. For example, in terms of efficient gas usage, the capacity of one 180MP Dewar flask is equivalent to 18 high-pressure gas cylinders with a pressure of 2400PSI200HP Chart self pressurized liquid nitrogen tank Dewar flask

Technical parameters:

PRODUCT MODEL/Model	200MP	200HP
Geometric volume/Gross (liters/L)	209	209
Net volume/Net (liters/L)	200	200
Dimensions/Size
Outer Shell Diameter (cm/cm)	50.8	50.8
Height/Height (cm/cm)	167.1	167.1
Technical Parameters
Safety valve set pressure (megapascal/PSI)	230/1.6	350/2.4
Relief Valve Setting(MPa/PSI)
Empty Weight/Empty Weight (kg/kg)	126.9	145.1
Filling Weight/Full Filling Weight (kg/kg)*
Liquid oxygen/CO2	331	339
Liquid nitrogen/LN2	271	280
Liquid argon/LAr	375	380
Liquid carbon dioxide/LCO2	/	353
Standard Gas Volume (Nm3) under standard conditions
Oxygen/O2	143	133
Nitrogen/N2	105	108
Argon/Ar	139	130
Carbon dioxide/CO2	/	105
Daily evaporation rate (liquid nitrogen)/NER (LN2)	0.0185	0.0185
Airflow/Gas Flow Rate (Nm3/hr)
Oxygen, nitrogen, argon (O2, N2, Ar)	10.5	10.5
Carbon dioxide (CO2)	2.9	2.9

* The filling weight/fill weight under the set pressure of the safety valve is based on the relief valve setting pressure
Two function configuration
1. Gas phase valve - can directly output gas for use
2. Liquid phase valve - filling or outputting liquid
3. Pressure regulator/booster - control (on/off) pressure control regulator
4. Exhaust valve - release the pressure inside the tank
5. Safety valve - overpressure relief
6. Pressure gauge, safety valve, bursting disc
7. Boosting valve - open the tank for boosting pressure
9. Liquid level gauge&protective cover - liquid volume in welded insulated gas cylinder