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Cryogenic relief valves, cryogenic protection, high pressure control valves and detonation or deflagration flame arresters

BAILEY, BIRKETT and CASH offer a range of cryogenic control valves, safety relief valves to protect cryogenics gas applications from over pressurisation. MARVAC and AMAL ensure liquids are stored in a safe and controlled manner.

Cryogenic pressure relief

Many industrial gas companies now supply their gas in its liquefied state to provide storage and handling benefits to customers. These gases are typically stored in insulated containers, so called dewars, and are turned back to a gas on site, whenever demand is generated. Damage to the dewar can allow air or liquid into the vacuum space inside the device, significantly increasing the pressure inside the dewar and reducing its insulating properties. While most cryogenic gases are not flammable on their own, fine industrial gases such as nitrogen and helium are capable of creating an oxygen-rich environment that can facilitate the ignition of flammable materials.

The CASH range of regulators offers solutions for various elements of the cryogenic storage dewar, including the pressure build circuit, the safety relief system, the economiser circuit and the final line circuit (house line). Cryogenic relief valves from CASH, BAILEY and BIRKETT protect the dewar from over pressurisation, while MARVAC low pressure tank protection valves offer reliable protection for storage vessels and tanks, as well as low pressure piping systems. AMAL flame arresters can be installed on the tank roof to prevent the propagation of fire into the system.

CASH cryogenic relief valves and bursting discs

CASH cryogenic relief valves protect the dewar from over pressurisation. These include:

BAILEY & BIRKETT cryogenic control valves

BAILEY & BIRKETT offer a range of cryogenic control valves that protect liquefied gas during handling and storage.

The Bailey Range includes:

The Birkett Range includes:

MARVAC high pressure relief valves

MARVAC high pressure relief valves can be applied for low pressure discharges. Options available include:

The Marvac range includes:

AMAL in line & end of line flame arresters

AMAL in line & end of line detonation or deflagration flame arresters also protect tanks and pipelines from any additional detonation or deflagration risks involved. 

The Amal range includes:

For more information about our cryogenic protection products, contact us today.

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