You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

SUN HYDRAULICS
PPFFKAV


$153.30 USD

Tags:

  • SUN HYDRAULICS
  • Material:PPFFKAV
  • Model:PPFF-KAV
  • Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 PPFFKAV (PPFFKAV) 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 offering full-flow relief from port 1 to tank port 3. The valve features a main stage orifice drilled directly into the piston, enhancing its durability for challenging applications. It is crucial to maintain the pressure at port 3 below 3000 psi (210 bar), as it directly affects the valve setting in a 1:1 ratio. This model allows for maximum inlet pressures dependent on the adjustment range, with specific ranges tested under varying maximum differential pressures. Notably stable and exhibiting low hysteresis, these valves have exceptionally flat pressure-flow characteristics. The PPFFKAV supports reverse flow from reduced pressure port 1 to inlet port 2, though this may close the main spool; thus, incorporating an additional check valve is recommended if reverse flow is required. For applications where pilot flow consumption is critical or dynamic response needs are superior, direct acting valves are suggested over pilot-operated ones. This model also incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or cavity/cartridge machining variations. With a capacity of up to 20 gpm (80 L/min), this Series 2 valve has a maximum operating pressure of 5000 psi (350 bar) and requires specific torque settings for installation and adjustment components. It features interchangeable three-port cartridges that share the same cavity and flow path within the frame size, offering flexibility in mounting configurations with consideration for return line capacity using reducing-relieving cartridges.

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

Show FAQ

Additional Resources



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.