hydraulic schematics
DESCRIPTION
Hydraulic_SchematicTRANSCRIPT
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Interpreting Hydraulic Schematics
Presented by: Greg Rae AVADAL INC.
Knowledge Management Systems
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A. Power Unit
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Power Unit Schematic
1. Reservoir
4. Accumulators
3. Main Pumps
2. Kidney Loop
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1. Reservoir
Temperature
Transducer &
Gage
Cooling Water Control
Sensor
Level
Switches
Tank
Breather
(2)
Heater
Heat Exchanger
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Lines
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Lines
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Lines
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Lines
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Shapes
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Reservoir
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Heat Exchangers
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Heat Exchangers
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2. Kidney Loop
Filters
Pump & Motor
Heat Exchanger
Relief Valve
Water Valves
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Filters
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Fixed Volume Pumps
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Pressure Compensated Pumps
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3. Main Pumps
Unloading Relief
Shown Energized
Fixed Volume Pumps
High Pressure Filter
Unloading Relief
Shown De-Energized
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Main Pumps Unloading/Relief
When the solenoid on the unloading /
relief valve is energized, the vent port on
the relief is blocked and pressure can
build to 2,250 PSI.
When the solenoid is de-energized, the
vent port drains to tank unloading the
pump to tank at 0 PSI
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Unloading/Relief Cutaway
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4. Accumulators
Nitrogen Bottles
Piston Style
Accumulators
Dump Valve
Pressure
Transducers &
Gages
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Accumulators
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B. Actuators & Controls
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Actuators & Controls Schematic1. Actuators
5. Proportional &
Servo 3. Directional
Valves
4. Flow Control6. Logic Valves
2. Pressure
Control
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1. Actuators
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Cylinders
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Cylinders
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Rotary Actuators
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Motors
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2. Pressure Controls
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Sequence Valve
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Counterbalance Valve
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Pressure Reducing Valves
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3. Directional Control Valves
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Check Valves
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Pilot Operated Check Valves
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Direct Operated Spool Valve
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Direct Operated Spool Valve
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Pilot Operated Spool Valve
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Valve Operators
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4. Flow Control
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Flow Control Valves
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5. Proportional & Servo
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Direct Operated Proportional Valve
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Pilot Operated Proportional Valve
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Servo Valve
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6. Logic Valves
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Logic Valves - Poppet Ratio
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Logic Valves - Directional Control
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Logic Valves - Check
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Logic Valves - Pressure Control