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What are the types of liquid dewar cylinders

Generally speaking, a liquid dewar cylinder is a double-walled cryogenic storage container. Typically, they have a glass outer wall and a metal inner wall. In addition, they typically have a loose-fitting insulated cap. They are often used for liquid nitrogen and liquid oxygen. They typically maintain their contents for a few hours. These containers are usually equipped with a float-type gauge to give an approximate indication of the contents of the tank. They may also have a differential pressure gauge to give more accurate measurements.
There are two main types of dewars: high pressure and low pressure. Both of these containers have the same basic design and can be used for the same purposes. The difference between a high-pressure and low-pressure dewar is the amount of pressure used to maintain the contents of the vessel. High-pressure dewars can be used for liquid nitrogen, liquid oxygen, liquid argon, and other gases. High-pressure dewars have a higher boiling point than the liquid and can be used for longer periods of time. Low-pressure dewars, however, are used for liquids. These dewars are not designed to store cryogenic liquids for extended periods.
Liquid dewars are flammable and should not be stored near heat. They should also be stored in a dry, cool location. They should not be damaged or dropped. They should also be transported with a special cylinder cart. They should be made of a strong, durable material. They should have safety features, such as an oxygen depletion monitor. They should be transported with a specially designed cylinder cart that can be adjusted to the proper height.
In addition to high-pressure and low-pressure dewars, there are also other types of dewars. These dewars are commonly referred to as "satellite" cryogenic liquid containers. They may have various shapes and sizes, depending on the application. In general, they are designed to safely manage gas released during slow boiling. They may be insulated to prevent loss of gas through the walls, or they may not. Often, these dewars are used for laboratory applications, such as liquid nitrogen and liquid oxygen. In other applications, they are used for other liquids.
These dewars are usually made of stainless steel. They are double-walled, with the inner wall being vacuum-insulated. They are typically equipped with a float-type liquid level gauge and a loose-fitting insulated cap. The cap is designed to allow excess pressure to escape, but it is also designed to prevent air and moisture from entering the dewar. The cap can be left open when not in use. They usually have an insulated neck that allows for liquid to be dispensed from the dewar.

Welded insulated liquid dewar cylinder

The DPL series containers are vacuum insulated, stainless steel containers designed to store and transport cryogenic liquid oxygen, nitrogen or argon. Containers may be used for over the road transportation of cryogenic fluids, as well as on-site storage and supply in a wide range of applications.
As rugged, long holding time, self-contained gas supply systems, these cylinders are capable of providing contonuous flow rates of up to 350cfh(9.2 cu.m/h)with a delivery pressure of approxomately 100psig (6.9bar/690 kpa)
The DPL Series containers are very rugged liquid cylinders. All cryogenic liquid cylinderd have an inner container and an outer container with an insulated vacuum space between them. Any abuse(dents, dropping, tip-over,etc) can affect the integrity of containers insulation system.