Parker Bestobell's compact cryogenic thermal relief valve is designed to prevent damage to piping and equipment caused by the expansion of liquefied gases. This thermal relief valve will lift at =/- 3% of set pressure rating. When liquefied gases are trapped between two closed valves (known as liquid lock), reheating and boiling can lead to a dangerous rise in pressure. The Parker Bestobell's thermal relief valve has been designed to prevent pressure build up.  
Its tried and trusted design means that the valve will not stick in its seat, even when it has been left unused for long periods of time. The valve also reseats correctly after venting off the expanding fluid, thus preventing gas wastage. It is available with a variety of outlet connections to suit customer requirements.


Markets:
• Industrial gas

Features / Benefits:
• Accuracy of lifting pressure is +/- 3%
• Reassurance as valve lifts within tight tolerances
• Valve is tight up until 90% of set pressure
• Design allows the valve to reseat correctly after venting off the expanding fluid which prevents wastage of cryogenic gases.
• Valve reseats before 50% of set pressure
• Enhances safety and security
• Designed and engineered for use with Group 1 gases.
• Valve is designed not to stick, even when left unused for long periods of time
• Protects equipment and valves
• Allows for protection of assets
• Offers protection against operator error

Applications:
• Transport
• Storage
• Defence
• Processing