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Priority Flow Control

Model

XPDPXDNXJ

Control
  • Standard Options
  • X
    No Manual Override
Flow Rate
  • Standard Options
  • D
    Nominal 20 gpm @ 200 psi (14 bar) differential (80 L/min.)
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Primary Cartridge
  • Standard Options
  • X
    X (with FPFK primary cartridge, Pilot-operated, normally closed, electro-proportional throttle with reverse flow check)
Port and Material Designation
  • Standard Options
  • J
    All Ports — SAE 8; Aluminum
  • J/S
    All Ports — SAE 8; Iron

Model: XPDP

Proportional priority bypass flow divider assembly

Capacity:

Model

XPDPXDNXJ

Control
  • Standard Options
  • X
    No Manual Override
Flow Rate
  • Standard Options
  • D
    Nominal 20 gpm @ 200 psi (14 bar) differential (80 L/min.)
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Primary Cartridge
  • Standard Options
  • X
    X (with FPFK primary cartridge, Pilot-operated, normally closed, electro-proportional throttle with reverse flow check)
Port and Material Designation
  • Standard Options
  • J
    All Ports — SAE 8; Aluminum
  • J/S
    All Ports — SAE 8; Iron
Function
Function image

Technical specifications

  • Modifiers
    Ports
    • J, J/S
      All Ports: SAE 8;
    • U, U/S
      All Ports: 3/8" BSPP;
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    This assembly provides an efficient way to supply auxiliary hydraulic power to various systems. The assembly divides the inlet flow of port P into a priority flow to port CF with excess flow to port EF. It provides electro-proportional priority bypass flow control using the FP*K electro-proportional throttle valve with reverse flow check. When the FP*K valve is given a proportional command signal, the output of the controlled priority port will start to increase proportionally to the signal provided. The LH*A priority valve (a bypass/restrictive priority modulating element) will act as a pressure compensator to ensure that the flow to port CF will remain constant during pressure changes. This will allow for very stable, continuous flow for a given command signal to control even the most demanding applications like hydraulic hammers and rock breakers. The FP*K valve will provide optimal performance when combined with a factory-tuned XMD driver.

    • Model FP*K can be configured with Sun's coil mounted XMD driver. Mounting holes are also available for user to assemble an XMD driver to the manifold.
    • Sun Priority Flow Control assemblies utilize bypass/restrictive modulating elements, and when combined with FP*K electro-proportional throttle valve, create a bypass/restrictive flow control. Inlet flow port P is directed to the priority or control flow at port 2 to the FP*K electro-proportional throttle valve. The after-orifice (FP*K electro-proportional throttle valve) signal is connected to port 1. Once the priority requirements are met, excess flow is bypassed to the EF.
    • The bypass/restrictive modulating element (LH*A) requires 100-psi (7-bar) differential pressure across the throttle valve before modulating to allow flow to EF port.
    • <strong><i>Note:<i></strong> Full command signal to the FP*K throttle valve may not generate the 100-psi (7-bar) differential required to shift the bypass/restrictive modulating element allowing flow to the EF port.
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    • Body Type
      Line mount
    • Capacity
      15 gpm
    • Mounting Hole Diameter
      .36 in.
    • Mounting Hole Depth
      Through
    • Mounting Hole Quantity
      3

    Model CAD Files

    Files not yet avialable. Click below to request them.

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    • 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?
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    • When configured with the XMD driver, a wiring harness is required to connect the XMD to the system and must be purchased separately. Sun offers a selection of harnesses and are available under Electronics | I/O Modules | Accessories.
    • 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.
    • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
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