Graphic CutawayHPLPPFFrom Solenoid Valve (SG)ComplexSchematicSimplifiedSchematicHPLPPFHPLPPFOrifice AOrifice BSpring (Weak)Spring (Strong)Main PoppetPilot PoppetPistonExcavator Main Relief ValveLow PressureHigh PressureVacuum PressureDrain PressureColors LegendMedium Pressure

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