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HYDRAULIC CIRCUIT ANDHYDRAULIC CIRCUIT AND

DESIGN DESIGN 

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HYDRAULIC CIRCUIT DEFINITION HYDRAULIC CIRCUIT DEFINITION • Hydraulic circuit :

Consists of group of components suchas pumps, control valves, conductors and

others to perform useful task• Hydraulic circuits is developed using graphicsymbols based on established standard for all

components• Standards used may include ANSI (American

National Standards Institute and IS!(International !rgani"ation for

Standardi"ation

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Performance Criteria ofPerformance Criteria of

Designing Hyra!"ic Circ!itsDesigning Hyra!"ic Circ!its#$ Safety of !peration

%$ &erformance of 'esired

function$ )fficiency of !peration

*$ Cost of Installation and

+aintenanceConvention reuires that circuit diagram be dra-n-ith all components sho-n in their

!n#act!ate $osition

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Contro" of A Sing"e Acting Hyra!"icContro" of A Sing"e Acting Hyra!"ic

Cy"iner Cy"iner 

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Control of 'ouble Acting HydraulicControl of 'ouble Acting Hydraulic

CylinderCylinder

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'.I//IN0 +ACHIN) A&&/ICA1I!N'.I//IN0 +ACHIN) A&&/ICA1I!N

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&2+& 2N/!A'IN0 CI.C2I1&2+& 2N/!A'IN0 CI.C2I1

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'!23/) 4 &2+& H5'.A2/IC'!23/) 4 &2+& H5'.A2/IC

S5S1)+S5S1)+

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C!2N1).3A/ANC) 6A/6) A&&/ICA1I!NC!2N1).3A/ANC) 6A/6) A&&/ICA1I!N

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HYDRAULIC CYLINDER SE%UENCINGHYDRAULIC CYLINDER SE%UENCING

CIRCUIT CIRCUIT 

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+)1). IN S&))'+)1). IN S&))'

C!N1.!/C!N1.!/

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+)1). !21 S&))' C!N1.!/+)1). !21 S&))' C!N1.!/

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 Conveyor TensioningDevice

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Surface GrindingMachine