BS EN ISO 4126-10:2024 - Page 2

Safety devices for protection against excessive pressure. Sizing of safety valves and bursting discs for gas/liquid two-phase flow | Status: Current

1 ​Scope This document 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, see Figure 2. The possible fluid states at the safety device inlet that can result in two-phase flow are given in Table 1.

NOTE The pressures used in this document are absolute pressures, not gauge pressures.