Are you in need of a valve that can withstand extremely low temperatures? Look no further than cryogenic globe valves! These specialized valves are designed to handle the demands of extreme cold, making them ideal for use in industries like aerospace, pharmaceuticals and energy. But what exactly are they, how do they work and who uses them? In this blog post, we'll dive into 7 helpful facts about cryogenic globe valves to give you a better understanding of their benefits and drawbacks. So let's get started!
What are cryogenic globe valves?
Cryogenic globe valves are a type of valve specifically designed to handle extremely low temperatures, typically below -150°C. They are commonly used in industries that require the transportation and storage of liquefied gasses such as nitrogen, oxygen, helium and hydrogen.
The term "globe" refers to the shape of the valve body which is typically spherical or cylindrical in design. The valve's internal mechanism consists of a movable disk (also known as a plug) which regulates the flow of fluid through the valve by either opening or closing it.
Cryogenic globe valves are engineered to withstand extreme cold temperatures without causing damage to their components. This is achieved through specialized materials like stainless steel, brass and bronze that have been selected for their ability to resist brittleness at low temperatures.
There are two main types of cryogenic globe valves: manual and automated. Manual valves must be operated manually using hand wheels or levers while automated valves can be controlled remotely via electric actuators.
Cryogenic globe valves play an essential role in managing low-temperature environments where other types of conventional valves would fail due to thermal contraction and embrittlement issues.
How do cryogenic globe valves work?
Cryogenic globe valves are designed to handle extremely low temperatures that can reach as low as -196°C. They work by controlling the flow of cryogenic liquids or gases through a pipe system using a disc-shaped valve that moves up and down to open or close the passageway.
The valve's body is made from materials such as stainless steel, bronze or brass, which are capable of withstanding extreme temperature conditions without cracking or warping. The internal components of the valve, including the stem and sealing mechanism, are also designed with materials suitable for use in cryogenic environments.
When you turn the handwheel on top of the valve clockwise, it causes the stem to rise upwards which lifts off the disc from its seat allowing gas/liquid to flow through. On turning anticlockwise, it lowers down resulting in shutting off flow completely.
One important feature of cryogenic globe valves is their ability to maintain tight shutoff even when exposed to extreme temperatures. This ensures there is minimal leakage thereby reducing wastage and ensuring safety during operations.
Cryogenic Globe Valves have been developed keeping in mind all aspects required for efficient operation at very low temperatures while maintaining quality and reliability similar to other types of valves operating at normal temperatures
What are the benefits of using cryogenic globe valves?
Cryogenic globe valves offer a range of benefits that make them an ideal choice for many industrial applications. One primary advantage is their ability to withstand extreme temperatures and pressure, allowing for safe and efficient handling of cryogenic gases and liquids.
These valves are also designed with high-quality materials such as stainless steel, which ensures durability and long-lasting performance even in harsh environments. They're also resistant to wear-and-tear, meaning they require less maintenance over time.
Another benefit of using cryogenic globe valves is their precise flow control capabilities. This valve type provides accurate regulation of the fluid or gas flow rate, making it easier to manage any process requirements without compromising quality or efficiency.
Moreover, these types of valves have a low torque requirement compared to other valve types. This means that operators can easily operate the valve with minimal effort while still maintaining full control over the flow rate.
Cryogenic globe valves provide numerous benefits that make them an excellent option for industries requiring precise temperature control and fluid management.
Are there any drawbacks to using cryogenic globe valves?
While cryogenic globe valves have their benefits, they also come with some drawbacks that users should be aware of.
One potential drawback is the cost. Cryogenic globe valves are typically more expensive than non-cryogenic versions due to their specialized design and materials.
Another consideration is maintenance. Cryogenic globe valves require specific procedures for cleaning and testing to ensure proper functioning at extremely low temperatures.
Additionally, the use of cryogenic fluids can pose safety risks if not handled properly. These fluids can cause severe injury or even death if they come into contact with skin or eyes.
It's important to note that cryogenic globe valves may not be suitable for all applications. While they excel in low-temperature environments, they may not perform as well in higher temperature settings.
Despite these potential drawbacks, many industries continue to rely on cryogenic globe valves for their unique capabilities in extreme cold environments. By understanding the limitations and taking appropriate precautions, users can safely take advantage of this technology.
Who uses cryogenic globe valves?
Cryogenic globe valves are used in a variety of industries where materials need to be transported and stored at extremely low temperatures. One such industry is the medical field, where cryogenic storage tanks use these valves to control the flow of liquid nitrogen for preserving biological samples.
Another industry that uses cryogenic globe valves is the food and beverage industry, particularly in the production of frozen foods. These valves help regulate the flow of liquid natural gas (LNG) during food processing and storage.
The energy sector also extensively uses cryogenic globe valves for liquefied petroleum gas (LPG) applications, which require precise regulation of temperature and pressure. Similarly, in petrochemical refineries, these valves help maintain optimal temperatures during high-pressure distillation processes.
Aerospace companies also utilize cryogenic globe valves as they work with rocket fuels and other volatile chemicals that must be handled carefully at extremely low temperatures.
Any industry that requires precise control over extreme temperatures can benefit from using cryogenic globe valves.
How much do cryogenic globe valves cost?
When it comes to purchasing cryogenic globe valves, the cost can vary depending on several factors. The first factor is the type of material used in making the valve. For instance, stainless steel or titanium will generally have a higher cost than brass or bronze.
Another factor that affects the price is the size and pressure rating of the valve. Larger valves with higher pressure ratings tend to be more expensive due to their complex engineering requirements and materials needed for construction.
In addition to these factors, brand reputation also plays a role in determining how much you pay for cryogenic globe valves. Established brands often charge more because they have built up a reputation for quality over time.
It's important to note that while cryogenic globe valves may seem expensive upfront, investing in high-quality equipment can save you money in maintenance costs and downtime down the line. Ultimately, it's worth doing your research and considering both short-term and long-term costs when deciding which valve best suits your needs.
Where can I buy cryogenic globe valves?
In summary, cryogenic globe valves are an essential component in many industries that require the transfer and storage of liquefied gases. Their ability to withstand extreme temperatures and pressures make them a reliable option for these applications.
Although they may come with a higher price tag than standard valves, their long-term efficiency and durability make them a worthwhile investment. Plus, with advancements in technology, cryogenic globe valves have become more affordable over time.
If you're looking to purchase cryogenic globe valves, there are various options available online through valve suppliers or manufacturers. It's important to do your research and choose a reputable supplier who can provide high-quality products that meet your specific needs.
Understanding the benefits of using cryogenic globe valves can help improve safety measures while also increasing efficiency in handling liquid gas processes. With proper installation and maintenance, these valves can offer long-lasting performance that will benefit any industry requiring the use of liquefied gases.