When it comes to shipping perishable items like biological samples, vaccines, and even food products that require constant low temperatures, liquid nitrogen shippers are essential. These specialized containers utilize liquid nitrogen to keep contents frozen during transit, ensuring they arrive at their destination in perfect condition.
Liquid nitrogen shippers come in various shapes and sizes, each designed for specific purposes. Some are insulated containers that trap the cold temperature of the liquid nitrogen inside, while others are equipped with monitoring devices to ensure the contents stay within the desired temperature range. Let’s take a closer look at what liquid nitrogen shippers are and how they work.
### What are liquid nitrogen shippers?
Liquid nitrogen shippers are containers specifically designed to transport items that require a constant low temperature. Liquid nitrogen, which is extremely cold at -196 degrees Celsius (-320 degrees Fahrenheit), is commonly used as the refrigerant in these containers. When filled with liquid nitrogen, the shippers create a cold environment that keeps the contents well-preserved during transportation.
These shippers are commonly used in industries such as healthcare, biotechnology, and food production, where maintaining temperature-controlled conditions is critical. For example, pharmaceutical companies use liquid nitrogen shippers to transport vaccines and biological samples, while food producers rely on them to ship perishable products like seafood and meat.
### How Do liquid nitrogen shippers Work?
Liquid nitrogen shippers work on the principle of thermal insulation. The outer casing of the container is typically made of materials like stainless steel or aluminum, which provide excellent insulation properties. Inside the container, there is a storage vessel that holds the liquid nitrogen. This vessel is usually made of stainless steel or other materials that can withstand the extremely low temperatures of the liquid nitrogen.
To fill the liquid nitrogen shipper, the liquid nitrogen is poured into the storage vessel, which is then sealed to prevent any leakage. The cold temperature of the liquid nitrogen creates a freezing environment inside the container, ensuring that the contents remain frozen during transit. Some liquid nitrogen shippers are equipped with monitoring devices that track the temperature inside the container and send alerts if it goes out of the desired range.
### Types of liquid nitrogen shippers
Liquid nitrogen shippers come in various types, each designed for specific applications. Here are some common types of liquid nitrogen shippers:
1. **Dewar Flasks:** Dewar flasks are small, portable containers that are used to transport small quantities of samples or biological materials. They are typically made of glass or stainless steel and have a double-wall design to provide excellent insulation.
2. **Dry Shippers:** Dry shippers are larger containers that are used to transport larger quantities of samples or perishable items. They are typically filled with absorbent material to prevent spillage and are equipped with pressure relief devices to ensure safe transportation.
3. **Liquid Nitrogen Refrigerators:** Liquid nitrogen refrigerators are specialized containers that are used to store samples at ultra-low temperatures for extended periods. They are equipped with temperature monitoring devices and can maintain a constant temperature of -196 degrees Celsius.
### Benefits of Using Liquid Nitrogen Shippers
There are several benefits to using liquid nitrogen shippers for transporting perishable items:
1. **Maintains Temperature:** Liquid nitrogen shippers provide a consistent low temperature environment that keeps the contents frozen during transit, ensuring they arrive in perfect condition.
2. **Long-lasting Preservation:** Liquid nitrogen has excellent cooling properties and can keep items frozen for days or even weeks, depending on the size of the container and the amount of liquid nitrogen used.
3. **Safe and Reliable:** Liquid nitrogen is non-toxic and non-flammable, making it a safe option for transporting perishable items. Additionally, liquid nitrogen shippers are designed to prevent leakage and ensure the contents remain secure during transit.
### Conclusion
Liquid nitrogen shippers play a crucial role in ensuring that perishable items are transported safely and efficiently. With their ability to maintain low temperatures for an extended period, these containers are essential in industries where temperature-controlled conditions are paramount. Whether you are shipping vaccines, biological samples, or food products, liquid nitrogen shippers provide a reliable and effective solution for preserving the integrity of your items during transit.