service units
In pneumatic systems a moisture separator, a pressure regulator, a pressure indicator, a lubricator and a filter are all frequently required, local to a load or system. This need is so common that combined devices called service units are available. Individual components comprising a service unit are shown in Figure 3.30a, while the composite symbol of a service unit is shown in Figure 3.30b.
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SUMMARY OF PROPERTIES OF PURE SUBSTANCES
THE SECOND LA W OF THERMODYNAMICS:ENERGY CONVERSION EFFICIENCIES
ENTROPY:ENTROPY CHANGE OF LIQUIDS AND SOLIDS
FORCED CONVECTION:PARALLEL FLOW OVER FLAT PLATES