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Priority Flow Control
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Model

YFEFXANAL

   
   
Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • K
    Handknob
  • L
    Tuning Adjustment
  • X
    Not Adjustable
  • Additional Options
  • O
    Handknob with Panel Mount
Setting Range
  • Standard Options
  • A
    Replaceable Orifice .1 - 12 gpm (0,4 - 45 L/min.)
  • B
    Permanent Orifice .1 - 12 gpm (0,4 - 45 L/min.)
  • I
    Incomplete (no orifice) 17 gpm (64 L/min.)
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Primary Cartridge
  • Standard Options
  • A
    A (with FRDA primary cartridge, Fixed-orifice, bypass/restrictive, priority, flow control valve)
Port and Material Designation
  • Standard Options
  • C
    Ports EF & P — 1/2" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • C/S
    Ports EF & P — 1/2" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Iron
  • D
    Ports EF & P — 3/4" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • D/S
    Ports EF & P — 3/4" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Iron
  • K
    Ports EF & P — SAE 10; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Aluminum
  • K/S
    Ports EF & P — SAE 10; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Iron
  • L
    Ports EF & P — SAE 12; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Aluminum
  • L/S
    Ports EF & P — SAE 12; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Iron
Model: YFEF

Fixed-orifice, bypass/restrictive, priority flow control with relief assembly

Capacity:

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Model

YFEFXANAL

   
   
Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • K
    Handknob
  • L
    Tuning Adjustment
  • X
    Not Adjustable
  • Additional Options
  • O
    Handknob with Panel Mount
Setting Range
  • Standard Options
  • A
    Replaceable Orifice .1 - 12 gpm (0,4 - 45 L/min.)
  • B
    Permanent Orifice .1 - 12 gpm (0,4 - 45 L/min.)
  • I
    Incomplete (no orifice) 17 gpm (64 L/min.)
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Primary Cartridge
  • Standard Options
  • A
    A (with FRDA primary cartridge, Fixed-orifice, bypass/restrictive, priority, flow control valve)
Port and Material Designation
  • Standard Options
  • C
    Ports EF & P — 1/2" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • C/S
    Ports EF & P — 1/2" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Iron
  • D
    Ports EF & P — 3/4" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • D/S
    Ports EF & P — 3/4" NPTF; Ports CF & T — 1/2" NPTF; Gage Port — 1/4" NPTF; Iron
  • K
    Ports EF & P — SAE 10; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Aluminum
  • K/S
    Ports EF & P — SAE 10; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Iron
  • L
    Ports EF & P — SAE 12; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Aluminum
  • L/S
    Ports EF & P — SAE 12; Ports CF & T — SAE 10; Gage Port — 1/4" NPTF; Iron
Function
Function image

Technical specifications

  • Modifiers
    Ports
    • C, C/S
      Ports EF & P: 1/2" NPTF; Ports CF & T: 1/2" NPTF; Gage Port: 1/4" NPTF;
    • D, D/S
      Ports EF & P: 3/4" NPTF; Ports CF & T: 1/2" NPTF; Gage Port: 1/4" NPTF;
    • K, K/S
      Ports EF & P: SAE 10; Ports CF & T: SAE 10; Gage Port: 1/4" NPTF;
    • L, L/S
      Ports EF & P: SAE 12; Ports CF & T: SAE 10; Gage Port: 1/4" NPTF;
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    This assembly consists of a bypass/restrictive, fixed-orifice, priority flow control which takes an input flow at port P and uses it to satisfy the priority flow at port CF. If the input flow exceeds the priority flow requirement, the excess is bypassed out port EF. The bypass flow may be used in a secondary circuit. The relief valve protects the controlled flow from over-pressurization, relieving excess flow out of port T.

    • The sharp-edged orifice design minimizes flow variations due to viscosity changes.
    • The tuneable control option provides +/- 25% variation from the nominal factory pre-set flow. Turn the adjustment clockwise to increase.
    • Both priority and bypass flow are usable up to the system operating pressure.
    • Bypass flow is not available until priority flow requirements are satisfied.
    • Pressure at the bypass port (port EF) may exceed pressure at the priority port (port CF).
    • Maximum pressure at the priority port should be limited to 3000 psi (210 bar).
    • Relief model RPEC is adjustable within 100 to 3000 psi (7 - 210 bar) with a factory setting of 1000 psi (70 bar).
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    • Body Type
      Line mount
    • Capacity
      30 gpm
    • Control Flow Range
      0 - 12 gpm
    • Mounting Hole Diameter
      .41 in.
    • Mounting Hole Depth
      Through
    • Mounting Hole Quantity
      2
    • 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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    • 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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