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BSI 21/30384379 DC:2021 Edition

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BS EN ISO 4126-10. Safety devices for protection against excessive pressure – Part 10. Sizing of safety valves and bursting discs for gas/liquid two-phase flow

Published By Publication Date Number of Pages
BSI 2021 86
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This part of ISO 4126 specifies the sizing of safety valves and bursting discs for gas/liquid two-phase flow in pressurized systems such as reactors, storage tanks, columns, heat exchangers, piping systems or transportation tanks/containers. The possible fluid states at the safety device inlet that can result in two-phase flow are given in Table 1.

NOTE

The expression “safety valve” is a synonym for valves as described in ISO 4126-1, ISO 4126-4 and ISO 4126-5. The expression “bursting disc” is a synonym for bursting disc safety device as described in ISO 4126-2, ISO 4126-3 and ISO 4126-6.

Table 1
Possible fluid state at the inlet of the safety valve or bursting disc that can result in two-phase flow
BSI 21/30384379 DC
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