The symbols shown below are generally based on
BS 2917-1:1993, ISO 1219-1:1991.Graphic symbols and
circuit diagrams for fluid power systems and
components. Specification for graphic symbols
Note: This is one standard identified by two
numbers.
For information on production of circuit diagrams
refer to
BS ISO 1219:1995..Fluid power systems and components.
Graphic symbols and circuit diagrams. Circuit
diagrams
Diagrams of pneumatic and hydraulic components are
produced using these symbols as building block
combining functional symbols with symbols for
variability and operation ...
Following are examples of the basic symbols
Following are typical symbols associated with Valve
Operators
Following are typical symbols associated with Pumps
and Motors
Following are typical symbols associated with
Instruments
Following are typical symbols associated with Air
Conditioning Units
Following are typical symbols associated with Fluid
Cylinders
Following are typical symbols associated with Fluid
System Pressurisation