This European Standard specifies the requirements for the design, manufacture and testing of safety valves for
cryogenic service, ?.e. for operation with cryogenic fluids below - 10 "C in addition to operation at ambient
temperature. It is a requirement of this standard that the valves comply with prEN IS0 4126-1:2001. In the event of
different requirements, this standard takes precedence over that standard.
This standard is restricted to valves not exceeding a size of DN 100 designed to relieve single phase vapours or
gases. A valve can be specified, constructed and tested such that it is suitable for use with more than one gas or
with mixtures of gases.
NOTE
vessel. Such methods are provided in prEN 13648-3.
This standard does not provide methods for determining the capacity of relief vaive(s) for a particular cryogenic
BS EN 13648-1:2002 history
2009BS EN 13648-1:2009 Cryogenic vessels - Safety devices for protection against excessive pressure - Safety valves for cryogenic service
2009BS EN 13648-1:2008 Cryogenic vessels — Safety devices for protection against excessive pressure Part 1: Safety valves for cryogenic service
2002BS EN 13648-1:2002 Cryogenic vessels - Safety devices for protection against excessive pressure - Safety valves for cryogenic service