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SUN HYDRAULICS
PPFFCJN


$139.30 USD

Tags:

  • SUN HYDRAULICS
  • Material:PPFFCJN
  • Model:PPFF-CJN
  • Summary:Cartridge

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics PPFFCJN (PPFFCJN) is a pilot-operated, pressure reducing-relieving valve designed to maintain a constant reduced pressure at port 1 from a higher primary pressure at inlet port 2, while also providing full-flow relief from port 1 to tank port 3. This valve features a main stage orifice drilled directly into the piston for enhanced durability in demanding applications. The valve setting is directly influenced by pressure at port 3, which should not exceed 3000 psi (210 bar). The maximum inlet pressure varies by adjustment range, with ranges D, E, N, and Q tested up to a 2000 psi (140 bar) differential, and ranges A, B, and H up to 3000 psi (210 bar). Ranges C and W can handle up to 5000 psi (350 bar) of inlet pressure. The PPFFCJN is known for its stable performance with low hysteresis and flat pressure-flow characteristics. It provides versatility in mounting configurations due to its interchangeable three-port design. For applications requiring superior dynamic response or critical pilot flow consumption management, direct-acting valves are recommended over pilot-operated types like this model. The valve includes Sun's floating style construction to minimize potential binding due to installation torque or machining variations. Additional specifications include a capacity of 20 gpm (80 L/min), maximum operating pressure of 5000 psi (350 bar), and control pilot flow between 10-15 in\u00b3/min (0.16-0.25 L/min). The valve's adjustment can be increased with up to five clockwise turns. Installation requires a hex size of 1-1/8 inches with an installation torque of 45-50 lbf\u00b7ft (61-68 Nm). The PPFFCJN weighs approximately .60 lb (.30 kg) and uses Viton seal kits for optimal performance.

Pilot-operated, pressure reducing/relieving valves reduce a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1, with a full-flow relief function from port 1 to tank (port 3).

  • These valves have the main stage orifice drilled into the piston rather than a staked-in orifice. This allows the valve to survive physically demanding applications.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 3000 psi (210 bar).
  • Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
  • Recommended maximum inlet pressure is determined by the adjustment range. Ranges D, E, N, and Q are tested with a 2000 psi (140 bar) maximum differential between inlet and reduced pressure. Ranges A, B, and H are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Ranges C and W are tested with 5000 psi (350 bar) of inlet pressure.
  • Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
  • Full reverse flow from reduced pressure (port 1) to inlet (port 2) may cause the main spool to close. If reverse free flow is required in the circuit, consider adding a separate check valve to the circuit.
  • If pilot flow consumption is critical, consider using direct acting reducing/relieving valves.
  • All three-port pressure reducing and reducing/relieving cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size). When considering mounting configurations, it is sometimes recommended that a full capacity return line (port 3) be used with reducing/relieving cartridges.
  • Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
  • W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

CavityT-2A
Series2
Capacity20 gpm80 L/min.
Factory Pressure Settings Established atblocked control port (dead headed)blocked control port (dead headed)
Maximum Operating Pressure5000 psi350 bar
Control Pilot Flow10 - 15 in³/min.0,16 - 0,25 L/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size1 1/8 in.28,6 mm
Valve Installation Torque45 - 50 lbf ft61 - 68 Nm
Adjustment Screw Internal Hex Size5/32 in.4 mm
Locknut Hex Size9/16 in.15 mm
Locknut Torque80 - 90 lbf in.9 - 10 Nm
Model Weight.60 lb0,30 kg
Seal kit - CartridgeViton: 990-202-006

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Notes:
  • For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.