Since 1984, Wessington Cryogenics have established themselves as a leading cryogenic vessel manufacturer with an ever growing reputation for Quality and Reliability.
Helium does not freeze at atmospheric pressure. Only at pressures above 20 times atmospheric will solid helium form. Liquid helium, because of its low boiling point, is used in many cryogenic systems when temperatures below the boiling point of nitrogen are needed. Liquefied gases, such as liquid nitrogen and liquid helium, are used in many cryogenic applications. Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable around the world. Liquid helium is also commonly used and allows for the lowest attainable temperatures to be reached.
Cryogenic Helium Bottle
Cryogenic cooling of devices and material is usually achieved via the use of liquid nitrogen, liquid helium, or a mechanical cryocooler (which uses high-pressure helium lines). Gifford-McMahon cryocoolers, pulse tube cryocoolers and Stirling cryocoolers are in wide use with selection based on required base temperature and cooling capacity. Additionally, AET’s cryogenic adsorbtion helium gas purifiers can be utilized in full recovery systems to recycle processed helium that has been collected from system vents. For more information on how our cryogenic purifiers work, please see our main cryogenic purifier unit page. From Gifford-McMahon and Pulse Tubes Cryocoolers, to Cryopumps and Cold Traps, the SHI Cryogenics Group offers a wider range of quality cryogenic equipment than any other manufacturer. Powered by our line of helium compressors, SHI products have been meeting and exceeding the needs of our diverse customer base for over 50 years.
Indeed this has been formally recognised by the granting of ISO 9001 and ASME U & R Stamp approval, and build vessels to PED & TPED among many other pressure vessel code requirements.
Helium Cryogenic Systems
Cryogenic storage vessels range from general purpose open dewars, to multi-coded liquid nitrogen, argon, oxygen & helium vessels, intermodal ISO tank containers and road tankers. Spares and accessories range from replacement valves to full automatic liquid level control equipment. We at Wessington pride ourselves in our ability to meet the customers special requirements for cryogenic equipment. We are able to manufacture a host of 'specials' for specific applications where a standard product does not exist. These vessels can be for 'one-off' projects or the development of a new concept for a potentially new market. Custom designed cryostats, liquid nitrogen vessels, cryogenic valve boxes and phase separators also available.
Cryofab Liquid Helium Dewar
Our repair and refurbishment facilities allow us to repair virtually all makes of liquid nitrogen, argon, oxygen or helium cryogenic vessels, returning them to an 'As New' condition. We are also able to examine and recertify vessels in accordance with the Pressure Systems Safety Regulations (PSSR). We are also able to offer various training courses to suit a variety of end applications and needs. The workshops presented are designed to focus the delegates attention via practical and interactive sessions to the importance of adopting safe working practices in line with Codes of Practice, Guidance Notes, and Legislation.
Cryogenic Helium Machine
Should you find anything on the Wessington Home Pages which interest you, or indeed require something which you feel we may be able to offer, please do not hesitate to contact us