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Dewar cylinder Factory

Baihui(Brightway) Dewar cylinder is a stainless steel pressure vessel with double-layer vacuum insulation, which is designed for storage, transportation and use of liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide. For the reliable and economical transport and storage of cryogenic liquid gases, as well as for the on-site storage and supply of cryogenic liquid gases in a wide range of applications.
Advantages of Baihui(Brightway) Dewar cylinder 
1. It can hold a large amount of gas at a relatively low pressure compared to the gas steel cylinder. 
2. It provides an easy to operate cryogenic liquid source.


Usage of Dewar cylinders 
  • Direct gas supply at the work site, and its use form is similar to that of compressed gas cylinders;
  • Small and simple pipeline centralized gas supply;
  • Cryogenic liquid use, etc.


Advantages of Dewar cylinders
  • The storage pressure is low, multi-level safety protection device is set, the safety is better, and the operation is simple and reliable.
  • Large storage capacity, which can reduce storage space, reduce bottle changing operations and improve work efficiency. For the centralized gas supply of pipelines, the investment in discharging manifolds can be reduced.
  • The cylinder body is clean, and the purity of the supplied gas is higher. Because the liquid gas is directly vaporized and supplied, it avoids the potential quality hazards caused by secondary pollution due to many links in the process of cylinder gas filling, transportation and use.
  • High gas utilization rate. Steel cylinders gas must be left with residual pressure after each use, and Dewar cylinders use liquefied gas supply to avoid any waste.
  • Reduce the cost of transportation and manpower loading and unloading.
  • With automatic pressure boost control, circuit saving, built-in carburetor, pressure and liquid level indicating device, high integration.
  • It does not need any kinetic energy, is not affected by power outages and water outages, and can work around the clock.

Huzhou Baihui Cryogenic Equipment Co., Ltd

Guarantee High Quality With Our Expertise

Since its establishment, our company has been focusing on the design, production, sales and service of the various cryogenic liquid pumps in the industrial gases and gas industry. The company has strong technical and advanced production equipment. It has a group of senior designers and excellent employees specializing in the design and manufacture of gas and gas equipment.Now the company is professional China Dewar cylinder Factory and Dewar cylinder company in China. Our Main Products: L-CNG High Pressure Reciprocating Pump、LNG Submersible Pump、Industrial Gas Filling Pump、Cryogenic Centrifugal Pump、Cryogenic Liquid Vaporizer、 LNG/L-CNG Skid Equipment、Vehicle-Mounted High Pressure Liquid Nitrogen Pump Skid (Pump Truck)、Industrial Gases Pressure Regulator Device Systems and other products.

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Industry knowledge


What is a dewar cylinder?
A Dewar cylinder, also known as a Dewar flask, is a type of specialized vacuum flask used for storing and transporting cryogenic fluids such as liquid nitrogen, liquid helium, and other liquefied gases. The flask was invented by Sir James Dewar in the late 19th century and is designed to keep the contents at a low temperature for an extended period.
The Dewar cylinder consists of two walls, which are separated by a vacuum. The inner wall is made of a material that can withstand the low temperature of the cryogenic fluid, and the outer wall is made of a material that provides insulation to reduce heat transfer. The vacuum between the two walls reduces heat transfer by conduction or convection, which helps to maintain the low temperature of the cryogenic fluid inside.
The design of the Dewar cylinder also includes a lid or stopper, which can be opened to allow the cryogenic fluid to be removed or added. The lid or stopper is usually made of an insulating material and is designed to prevent heat from entering the flask and warming up the contents.
Dewar cylinders are widely used in research laboratories, hospitals, and industrial settings where cryogenic fluids are needed. They are also used for transportation of cryogenic gases and are a crucial component in many scientific and medical applications.
What are the advantages of dewar cylinder?
A Dewar cylinder, also known as a Dewar flask or vacuum flask, is a specialized container designed to store and transport cryogenic materials at extremely low temperatures. Here are some advantages of using a Dewar cylinder:
High thermal insulation: Dewar cylinders are designed to provide excellent thermal insulation to the contents within, which helps to minimize heat transfer and maintain the temperature of the cryogenic materials. This makes them ideal for storing and transporting materials such as liquid nitrogen, oxygen, and helium.
Safe storage: Dewar cylinders are made of high-quality materials that are resistant to extreme temperatures and pressure, which makes them safe for storing cryogenic materials. They are also designed with safety features such as pressure relief valves and venting systems to prevent overpressure and potential accidents.
Durability: Dewar cylinders are made of strong and durable materials such as stainless steel, aluminum, and glass that are resistant to corrosion and wear. This ensures that the container can withstand the harsh conditions associated with cryogenic storage and transportation.
Portable: Dewar cylinders come in various sizes and shapes, which makes them easy to transport and handle. They can be carried by hand or transported on specialized carts and trucks.
Cost-effective: Dewar cylinders are a cost-effective solution for storing and transporting cryogenic materials compared to other methods such as cryogenic tanks. They are also reusable, which reduces the cost of purchasing new containers for every use.
Overall, Dewar cylinders offer several advantages for storing and transporting cryogenic materials, including high thermal insulation, safe storage, durability, portability, and cost-effectiveness.