Safety devices for protection against excessive pressure - Sizing of safety valves for gas/liquid two-phase flow
Safety devices for protection against excessive pressure - Sizing of safety valves for gas/liquid two-phase flow
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1 Scope This part of ISO 4126 specifies the sizing of safety valves 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 valve 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.
Table 1 — Possible fluid state at the inlet of the safety valve that can result in two-phase flow
Fluid state at valve inlet Cases Examples
liquid subcooled (possibly flashing in the safety valve...
Стандарты, упомянутые в описании