Custom Dewar cylinder

Preferred by our customers

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.


Honor certificate
Honor certificate
Honor certificate
Honor certificate
Honor certificate
Honor certificate
Honor certificate


What is the function of cylinder filling pump pressure relief devices?

Cylinder filling pump pressure relief devices serve a crucial safety function in systems that handle compressed gases. These devices are designed to prevent over-pressurization of ...

How to perform gas detection on cylinder filling pump?

Performing gas detection on a cylinder filling pump is a critical safety procedure to ensure that there are no leaks or hazardous gas concentrations in the surrounding area during ...

What safety precautions should be taken when operating a cylinder filling pump?

Operating a cylinder filling pump involves handling gases or substances that can be hazardous if not handled properly. Safety precautions are critical to prevent accidents and ensu...

What are the different types of gases or substances that cylinder filling pumps are used to fill?

Cylinder filling pump are used to fill various types of gases and substances, depending on the industry and application. Here are some common gases and substances that cylinder fil...

What is the advantage of the seamless construction of seamless steel gas cylinders?

The seamless construction of seamless steel gas cylinders offers several significant advantages compared to cylinders with welded seams. These advantages contribute to the cylinder...

How about the strength and pressure capacity of seamless steel gas cylinders?

The strength and pressure capacity of seamless steel gas cylinders are key factors that contribute to their widespread use for storing and transporting compressed gases. Seamless s...

How does cryogenic centrifugal pump perform in boil-off gas handling?

Cryogenic centrifugal pump play a vital role in handling boil-off gas (BOG) in liquefied natural gas (LNG) storage and transportation systems. BOG refers to the vaporization of a s...

What is the application of cryogenic centrifugal pump in liquefied natural gas Industry?

Cryogenic centrifugal pump play a critical role in the liquefied natural gas (LNG) industry by facilitating the safe and efficient transfer of liquefied natural gas between various...

What are the differences between liquid dewar cylinders and conventional gas cylinders?

Liquid dewar cylinder and conventional gas cylinders are both used for storing and transporting gases, but they have some key differences in design, usage, and the states in which ...

What are the environmental considerations when using a cylinder filling pump?

Using a cylinder filling pump can have several environmental considerations that should be taken into account to minimize negative impacts on the environment. Here are some key fac...

What are the common applications of seamless steel gas cylinders?

Seamless steel gas cylinders have a wide range of applications across various industries. Some common applications include: Industrial Gases: Seamless steel gas cylinders are comm...

How does an ambient air vaporizer work?

An ambient air vaporizer is a device used to convert liquid cryogenic gases, such as liquid nitrogen or liquid oxygen, into gas form for various applications. It operates by utiliz...

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.