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A cryogenic pump or a cryo pump is a type of cryogenic equipment in charge of the transfer and pressurization of liquefied gasses.
Cryogenic liquid pumps are used to transport cryogenic liquids from low pressure sites to high pressure sites. With the development of air separation technology, cryogenic liquids have been widely used and developed. Its functions in air separation equipment are as follows: for liquid circulation; Or extract the liquid from the storage tank and press it into the carburetor, which is then vaporized and sent to the user.
Since the fluid transported by the cryogenic liquid pump is cryogenic liquid, the low temperature should be kept during the process of transporting the medium. If more heat is absorbed from the surroundings of the pump, the low-temperature liquid in the pump will evaporate in large quantities and generate gas, which will affect the work of the pump. Therefore, cryogenic pumps have special requirements in terms of structure, materials, installation and operation to meet the requirements of cryogenic liquid transportation.
According to the different working principles, the cryogenic pump is mainly divided into reciprocating and centrifugal.


Application of cryogenic liquid pump
  • Used for filling various low, medium and high pressure steel cylinders of liquid oxygen, liquid nitrogen, liquid argon and liquefied natural gas
  • Refueling of various fuel tanks
  • Gas supply and distribution system
  • Air separation units (ASU) 
  • Process and transfer applications at cryogenic temperatures 
  • Unloading operations from tankers 

Advantage of Brightway pumps
  • Classic design, stable performance, 10 years of service life
  • High vacuum jacketed cold end, low loss of cooling capacity
  • Reliable sealing  
  • Maintenance is simple, daily maintenance only takes two hours 
  • It can run continuously for 24 hours

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 Cryogenic liquid pump Factory and Cryogenic liquid pump 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

A cryogenic liquid pump is a type of pump used to transfer cryogenic liquids such as liquid nitrogen, liquid oxygen, or liquefied natural gas (LNG) at extremely low temperatures. These pumps are specifically designed to handle the low-temperature, low-density fluids and are often used in industrial applications, air separation units, semiconductors, and petrochemicals.
Cryogenic pumps are typically powered by electric motors and use specialized materials such as stainless steel and copper to prevent damage to the pump components due to the low temperatures. They can be either positive displacement pumps or centrifugal pumps, depending on the specific application.
Positive displacement cryogenic pumps are typically used for low-flow, high-pressure applications, while centrifugal cryogenic pumps are better suited for high-flow, low-pressure applications. Cryogenic pumps are typically operated at very low temperatures, often below -100°C, and require careful handling and maintenance to prevent damage to the equipment and ensure safe operation.

What are the advantages of cryogenic liquid pump?
Cryogenic liquid pumps are used to transfer and pump fluids that are extremely cold, such as liquid nitrogen, oxygen, and argon, at temperatures below -150°C. Here are some advantages of cryogenic liquid pumps:
High Efficiency: Cryogenic liquid pumps are designed to provide high-efficiency performance, which is essential when handling cryogenic fluids. This is because the viscosity of these fluids increases significantly as the temperature drops, making it more challenging to move them.
Low Maintenance: Cryogenic liquid pumps are generally simple in design, which makes them easy to maintain. They also have fewer moving parts than conventional pumps, which means less wear and tear and lower maintenance costs.
Safe Operation: Cryogenic liquids are hazardous substances, and their handling requires special care and attention. Cryogenic liquid pumps are designed to provide safe and reliable operation, with features such as leak detection, low-temperature sensors, and automatic shutdown systems.
Compatibility: Cryogenic liquid pumps are compatible with a wide range of cryogenic fluids, including nitrogen, oxygen, and argon, making them highly versatile.
Precision: Cryogenic liquid pumps are capable of delivering highly precise flows and pressures, which makes them ideal for applications that require high accuracy.
Longevity: Cryogenic liquid pumps are typically made of materials that can withstand extreme temperatures and harsh operating conditions, which gives them a longer lifespan than conventional pumps.
In summary, the advantages of cryogenic liquid pumps include high efficiency, low maintenance, safe operation, compatibility with a wide range of fluids, precision, and longevity.