PED Category Calculator Pressure vessel Select the appropriate calculator depending on the relevant fluid Gas Liquid Fluid Group 1 Fluid Group 2 Category Calculator (Table 1) Category Calculator (Table 2) Fluid Group 1 Fluid Group 2 Category Calculator (Table 3)

Assemblies mean several pieces of pressure equipment assembled by a manufacturer to constitute an integrated and functional whole. Classification of assembly The category of each individual pressure equipment making up the assembly is based on the conditions which can occur in

Pipings are classified into categories according to increasing hazard potential in accordance with PED Annex II (see tables 6, 7, 8 and 9 below). The category is determined according to the procedure listed below. The determined category determines the permissible

Safety accessories intended for pressure equipments covered for vessels, piping and fired or otherwise heated pressure equipment, including where such equipment is incorporated into an assembly. Definitions “Safety accessories” Safety accessories are devices designed to protect pressure equipment against the

Pressure accessories are classified into categories according to increasing hazard potential in accordance with PED Annex II. The category is determined according to the procedure listed below. The determined category determines the permissible conformity assessment procedures. PED Category Calculator Pressure

Fired pressure vessel or otherwise heated pressure equipment with the risk of overheating are classified into categories with increasing hazard potential in accordance with PED Annex II. The category is determined according to the procedure listed below. The determined category

The fluid groups of the fluids used are decisive for category classification, as the hazard potential depends essentially on the hazard characteristics of these fluids. The PED divides the fluids into two groups: Note 1: If a fluid containing a

Vessels are classified into categories with increasing hazard potential in accordance with PED Annex II (see tables 1, 2, 3 and 4 below). The category is determined according to the procedure listed below. The determined category determines the possible conformity