1. Component symbolization
National and international standards define the symbols to be used to represent the various components of hydraulic circuits.
The reference documents are AFNOR standards NF ISO 1219-1 and NF ISO 1219-2.
The rules for tracing circuits are set out in standard NF ISO 1219-2, an extract of which is shown in figure 1 .
To simplify understanding of the diagrams used in the following paragraphs, we have drawn up a table of symbols taken from standard NF ISO 1219-1 (table 1 ). Some other symbols are described in more detail in
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Component symbolization
Different types of circuits
Standardization
Association française de normalisation AFNOR
- Transmissions hydrauliques. Brides carrées monobloc avec collets encastrés PN 250 et PN 400 - Dimensions. - NF E 48-054 - 12-98
- Transmissions hydrauliques. Brides et implantations rectangulaires avec collets encastrés PN 250 et PN 400 - Dimensions. - NF E 48-055 - 12-86
- Transmissions hydrauliques. Fluides. Méthodes de prélèvement en flacons sur un circuit...
Organizations
Association française de normalisation AFNOR
International Organization for Standardization ISO
Comité européen des transmissions oléohydrauliques et pneumatiques CETOP
Society of Automative Engineers SAE
Deutsches Institut für Normung DIN
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