Specification for valves for cryogenic service BS 6364:1984
4.5 For applications other than cold box applications the minimum gland extension length shall be 250mm.
What are cold box applications?
How do valve manufactures provide an ambient or cold working pressure of 20bar (Class 150) for Nickel-aluminium Bronze B148 C95800?
In basic terms the standards ASME B16.24:2001 (US) and EN 1092-3 / 1759-3:2003 (Euro) do not take into account the higher mechanical properties of Nickel-aluminium...