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Model

YFFGXHNA

Control
Differential Pressure
Seal Material
Primary Cartridge
Model: YFFG

Bypass pressure compensator assembly

Capacity:

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Model

YFFGXHNA

Control
Differential Pressure
Seal Material
Primary Cartridge
See CAD Files tab below to request images.
Function
Function image
Function image
Function image

Technical specifications

This valve assembly consists of a normally-closed bypass style compensator on the P port and a shuttle that senses pressure from the higher of the 2 work ports. Its purpose is to provide a relatively constant pressure drop across the directional valve thus isolating the directional valve spool from high flow forces. This is accomplished by bypassing the excess oil to the T port. The constant drop creates a pressure compensated flow control out of the directional valve.

  • This assembly is meant to be used in a single station circuit with a fixed displacement pump.
  • The pressure differential across the orifice (directional valve) varies with bypass flow and system pressure. It is at its lowest at zero bypass flow and increases with increasing bypass flow and system pressure.
  • Another term for this assembly is a hydrostat.
  • Body Type
    Sandwich
  • Interface
    ISO 07
  • Capacity
    40 gpm
  • Body Features
    Meter in P
  • Seal Plate Included (see notes)
    Yes
  • Stack Height
    2.74 in.

Model CAD Files

Files not yet avialable. Click below to request them.

  • Why doesn't Sun anodize their aluminum bodies?
  • How big is a drop of hydraulic oil?  
  • Direct acting or pilot operated - what do I use?
  • Stack height value in technical data table includes seal retainer plate.
  • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
  • Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.

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