SUN HYDRAULICS
PPFFOAV
$146.30 USD
Tags:
- SUN HYDRAULICS
- Material:PPFFOAV
- Model:PPFF-OAV
- Summary:Cartridge
Quantity in stock: 0
***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 PPFFOAV (PPFFOAV) is a pilot-operated pressure reducing/relieving valve designed to manage high primary pressures, reducing them to a consistent lower pressure while offering full-flow relief functionality. This valve is engineered with the main stage orifice integrated into the piston, enhancing its durability for demanding applications. The pressure at port 3 directly adds to the valve setting in a 1:1 ratio, with a maximum allowable pressure of 3000 psi (210 bar). The recommended maximum inlet pressure varies by adjustment range, with different ranges tested under specific conditions to ensure performance reliability. This valve exhibits stable and low hysteresis characteristics due to its pilot-operated design, though it is not fast-acting and may require consideration of direct-acting valves for superior dynamic response. The PPFFOAV allows full reverse flow from reduced pressure port 1 to inlet port 2, but this action may close the main spool; hence, adding a separate check valve might be necessary if reverse free flow is needed. For those concerned about pilot flow consumption, direct-acting reducing/relieving valves are recommended as an alternative. The design features Sun\u2019s floating style construction which minimizes internal part binding risks due to excessive installation torque or machining variations. This valve fits into the T-2A cavity and belongs to Series 2 with a capacity of 20 gpm (80 L/min). It operates at a maximum pressure of 5000 psi (350 bar) and requires specific installation torques and adjustments for optimal performance. The PPFFOAV includes an internal hex size adjustment screw and locknut for secure settings management. Its robust construction ensures reliability across various applications requiring precise pressure regulation and relief functions.
The Sun Hydraulics PPFFOAV (PPFFOAV) is a pilot-operated pressure reducing/relieving valve designed to manage high primary pressures, reducing them to a consistent lower pressure while offering full-flow relief functionality. This valve is engineered with the main stage orifice integrated into the piston, enhancing its durability for demanding applications. The pressure at port 3 directly adds to the valve setting in a 1:1 ratio, with a maximum allowable pressure of 3000 psi (210 bar). The recommended maximum inlet pressure varies by adjustment range, with different ranges tested under specific conditions to ensure performance reliability. This valve exhibits stable and low hysteresis characteristics due to its pilot-operated design, though it is not fast-acting and may require consideration of direct-acting valves for superior dynamic response. The PPFFOAV allows full reverse flow from reduced pressure port 1 to inlet port 2, but this action may close the main spool; hence, adding a separate check valve might be necessary if reverse free flow is needed. For those concerned about pilot flow consumption, direct-acting reducing/relieving valves are recommended as an alternative. The design features Sun\u2019s floating style construction which minimizes internal part binding risks due to excessive installation torque or machining variations. This valve fits into the T-2A cavity and belongs to Series 2 with a capacity of 20 gpm (80 L/min). It operates at a maximum pressure of 5000 psi (350 bar) and requires specific installation torques and adjustments for optimal performance. The PPFFOAV includes an internal hex size adjustment screw and locknut for secure settings management. Its robust construction ensures reliability across various applications requiring precise pressure regulation and relief functions.
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.
Cavity | T-2A |
Series | 2 |
Capacity | 20 gpm80 L/min. |
Factory Pressure Settings Established at | blocked control port (dead headed)blocked control port (dead headed) |
Maximum Operating Pressure | 5000 psi350 bar |
Control Pilot Flow | 10 - 15 in³/min.0,16 - 0,25 L/min. |
Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
Valve Hex Size | 1 1/8 in.28,6 mm |
Valve Installation Torque | 45 - 50 lbf ft61 - 68 Nm |
Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
Locknut Hex Size | 9/16 in.15 mm |
Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
Model Weight | .60 lb0,30 kg |
Seal kit - Cartridge | Viton: 990-202-006 |
Show FAQ
Additional Resources
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Sun Expands Corrosion-Resistant Solutions
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Manufacturing Sun Cartridge Cavities
- Reducing and Reducing/Relieving Valves
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
- Sun Model Code Explanation; 999-901-334
- Cavity Information (S-171) and Tooling
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
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.