Project Description

A cryogenic storage dewar (named after James Dewar) is a specialized type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature. SINOGES provides 3 types of cryogenic storage dewars according to the different applications.

LNG On-Board Tank

A liquefied natural gas storage tank or LNG storage tank is a specialized type of storage tank used for the storage of Liquefied Natural Gas. LNG storage tanks can be found in ground, above ground or in LNG carriers. The type of LNG Tank we are referring to, are those used on Trucks and Buses, as the fuel containers. The common characteristic of LNG Storage tanks is the ability to store LNG at the very low temperature of -162 °C (-260 °F).

LIQUID NATURAL GAS CYLINDER Catalogue 2019

Industrial Gas Dewars

Sinoges supplies Dewars and Cryogenic Tanks to safely contain liquefied gases such as nitrogen (LN2), oxygen (LO2), argon (LAr), carbon dioxide (LCO2), and Liquid Natural Gas (LNG). These gases are all stored at extremely low temperatures and in a liquid state. The dewars can stand by itself either in a vertical direction or a horizental direction when it is framed, depending on customer requirements.

Cryogenic (Dewar) Tank Catalogue 2019

Aluminum Dewars

SINOGES offers global customers with a wide range of compact Aluminum Cryogenic Storage Tanks (Aluminum Dewars) that are popluar on the markets for storing biological samples in vials, in the fields of medical treatment and biological science research. They are designed to store large amount of biological samples at a very low liquid nitrogen consumption rate, which are the most economic choice for customers.

Aluminum Dewar (Storage & Transportable) Tank Catalogue 2019

How to select your cylinder?

When you will be choosing a gas cylinder for your project or inventory, it is important to know the answers to below questions:

This answer helps to define below properties of the cylinders:

  1. What kind of certificate will be mandatorily required? (e.g. If you are buying cylinders for Russia market, then your cylinder supplier must have an EAC 018/032 certificate so that you will not have a problem during customs clearance)
  2. Different countries have different regular inspection requirements. Though it may not influence the importation of cylinders, it is better you know in advance what you or your client will need to do in the future.

This question is important, as it helps to define below characters of cylinders:

  1. The color to be coated on the surface of the cylinder body is related to the gas to be filled. Something you might need to know is that different areas/countries do have different requirements for color codes.
  2. The valve to be mounted is also related to the gas type.
  3. In some cases, the type of gas contained is required to be marked on the shoulder of the cylinder (e.g. In Egypt, the cylinders used in CO2 Fire Suppression Systems are required to mark “K2-K5 CO2” in addition of the normal steel stamp requirement)
  4. Some of Hazardous Gases require special treatment on the cylinder body and valve to be used.

In SINOGES, we mainly distinguish the cylinder products into two types according to the service pressure:

  1. High-Pressure Seamless Cylinders;
  2. Low-Pressure Welded Cylinders.

And for the High-Pressure Industrial Gas (Seamless) Cylinder products, we have many different work pressure rates for different customers to choose according to their actual requirement:

124 Bar
127 Bar
139 Bar
147 Bar
150 Bar
156 Bar
160 Bar
165 Bar
166 Bar
167 Bar
169 Bar
172 Bar
174 Bar
193 Bar
200 Bar
210 Bar
216 Bar
230 Bar
232 Bar
300 Bar
311 Bar

A cylinder can be used in many applications by itself (e.g., a 2L-150Bar cylinder can be used as a gas extinguisher and a 40L-150Bar cylinder can be used as an Argon gas cylinder in factories). However, some applications do have special requirements for the parameter of the cylinders. For instance, if you are using the cylinder as a containment vessel of Compressed Natural Gas in the application of vehicle fueling, then you have to check the available space and tolerance in the trunk or on the chassis to decide the diameter and length of the cylinder. The same rule also applies, when you will use the cylinders as part of gas bundles or fire suppression systems.

Except for the certificate that is required for the import of cylinders according to local laws (e.g., the EAC 018/032 certificate which is required by Russia market), different applications also have different requirement for the cylinders’ manufacturing standard and the way they are inspected (e.g., in the USA, it is mandatory that the cylinders must be DOT 3AA or DOT 3AL certified if they are intended to be used in the territory of this country. But if you are using the cylinders in the USA for the purpose of vehicle fueling, the cylinders must have a certificate according to DOT FMVSS). So, it is important for the customers to understand what types of certificate is required before they will place an order.

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