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ISO 4126-3:2020

Current Revision

Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination

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This document specifies only the requirements for a product assembled from the in-series combination of safety valves or CSPRS (controlled safety pressure relief systems) according to ISO 4126‑1, ISO 4126‑4 and ISO 4126‑5, and bursting disc safety devices, according to ISO 4126‑2, installed upstream of the valve within five pipe diameters of the valve inlet. It specifies the design, application and marking requirements for such products, composed of the bursting disc safety device, a safety valve or CSPRS and, where applicable, a connecting pipe or spool piece. In addition, it gives a method for establishing the combination discharge factor used in sizing combinations.


SDO ISO: International Organization for Standardization
Document Number ISO 4126
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 185
Publish Date Document Id Type View
Not Available ISO 4126-3:2020 Revision