SUN HYDRAULICS
RED-REL CART
PVFBLBN
$175.20
- SUN HYDRAULICS
- Material:PVFBLBN
- Model:PVFB-LBN
- Summary:Cartridge
Quantity in stock: 7
***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 PVFBLBN (PVFBLBN) is a ventable, pilot-operated pressure reducing/relieving valve designed to manage high primary pressures by reducing them to a constant level at port 1, while offering a full-flow relief function from port 1 to tank port 3. This valve allows for remote control through the vent port (port 4) using pilot or two-way valves. It is crucial that the pressure at port 3 does not exceed 3000 psi (210 bar), as it directly adds to the valve setting at a 1:1 ratio. The PVFBLBN model demonstrates minimal deadband during transitions between reducing and relieving modes, and it maintains exceptionally flat pressure-flow characteristics for stability and low hysteresis. The recommended maximum inlet pressure varies with the adjustment range: ranges D, E, N, and Q are tested with up to 2000 psi (140 bar), while ranges A, B, and H handle up to 3000 psi (210 bar), and ranges C and W can withstand up to 5000 psi (350 bar). The valve features Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. With a capacity of up to 20 gpm (80 L/min), this valve is factory set under blocked control conditions. It operates at a maximum pressure of 5000 psi (350 bar) with a control pilot flow between 10-15 in\u00b3/min (0.16-0.25 L/min). For adjustments, the valve requires approximately five clockwise turns to increase its setting; it has specific installation torque requirements of 45-50 lbf\u00b7ft (61-68 Nm). The PVFBLBN model weighs about .70 lb (.30 kg) and uses Viton seals for enhanced durability.
The Sun Hydraulics PVFBLBN (PVFBLBN) is a ventable, pilot-operated pressure reducing/relieving valve designed to manage high primary pressures by reducing them to a constant level at port 1, while offering a full-flow relief function from port 1 to tank port 3. This valve allows for remote control through the vent port (port 4) using pilot or two-way valves. It is crucial that the pressure at port 3 does not exceed 3000 psi (210 bar), as it directly adds to the valve setting at a 1:1 ratio. The PVFBLBN model demonstrates minimal deadband during transitions between reducing and relieving modes, and it maintains exceptionally flat pressure-flow characteristics for stability and low hysteresis. The recommended maximum inlet pressure varies with the adjustment range: ranges D, E, N, and Q are tested with up to 2000 psi (140 bar), while ranges A, B, and H handle up to 3000 psi (210 bar), and ranges C and W can withstand up to 5000 psi (350 bar). The valve features Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. With a capacity of up to 20 gpm (80 L/min), this valve is factory set under blocked control conditions. It operates at a maximum pressure of 5000 psi (350 bar) with a control pilot flow between 10-15 in\u00b3/min (0.16-0.25 L/min). For adjustments, the valve requires approximately five clockwise turns to increase its setting; it has specific installation torque requirements of 45-50 lbf\u00b7ft (61-68 Nm). The PVFBLBN model weighs about .70 lb (.30 kg) and uses Viton seals for enhanced durability.
Ventable, pilot-operated pressure reducing/relieving valves reduce a high primary pressure at the inlet to a constant reduced pressure at port 1, with a full-flow relief function from port 1 to tank (port 3). The vent port (port 4) can be used as a means for remote control by pilot or 2-way valves.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 3000 psi (210 bar).
- Pilot operated valves exhibit very low dead-band transition between reducing and relieving modes.
- 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.
- By controlling the pressure at the vent (port 4), the effective setting of the valve can be controlled below the nominal valve setting.
- 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-22A |
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 | .70 lb0,30 kg |
Seal kit - Cartridge | Viton: 990-022-006 |
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Additional Resources
- Sun Expands Corrosion-Resistant Solutions
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Reducing and Reducing/Relieving Valves
- Manufacturing Sun Cartridge Cavities
- Fluid and Temperature Recommendations
- Performance Data
- 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
Notes:
- Maximum pressure differentials for spring ranges: A and B are 3000 psi (210 bar) D and E are 2000 psi (140 bar) W is 5000 psi (350 bar) inlet pressure