SUN HYDRAULICS
DKFPLBV
$185.95 USD
- SUN HYDRAULICS
- Material:DKFPLBV
- Model:DKFP-LBV
- 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 DKFPLBV (DKFPLBV) is a precision-engineered hydraulic valve designed for high-pressure applications, featuring a normally closed, balanced poppet switching element. This valve operates by maintaining the poppet in a closed position until pilot pressure at port 3 reaches the pre-set relief stage, causing the poppet to shift to an open state. This unique balanced construction ensures predictable and reliable switching under pressures up to 5000 psi (350 bar) at both port 1 and port 2. The DKFPLBV valve is characterized by its ability to handle backpressure at the drain port, which is additive to the valve setting, ensuring efficient operation under various pressure conditions. The reseating of the valve occurs when pilot pressure decreases to 85% of the cracking value, enhancing system safety and preventing leaks. Notably, ports 1 and 2 are effectively isolated from ports 3 and 4, ensuring no cross-contamination or leakage between these interfaces. With a maximum flow capacity of 30 gpm (120 L/min) and minimal leakage\u2014typically less than 10 drops/min at 5000 psi\u2014the DKFPLBV is designed for robust performance in demanding environments. It features Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. This design consideration extends the valve\u2019s operational life and reliability. Additional technical specifications include a T22A cavity design, Series 2 classification, and required minimum pilot pressure of 300 psi (20 bar) for valve shifting. The valve also supports a maximum operating pressure of up to 5000 psi (350 bar), accommodating high-pressure systems efficiently. Installation specifications such as hex sizes for the valve and adjustment screw as well as recommended torque settings ensure that installation is straightforward while maintaining system integrity and performance.
The Sun Hydraulics DKFPLBV (DKFPLBV) is a precision-engineered hydraulic valve designed for high-pressure applications, featuring a normally closed, balanced poppet switching element. This valve operates by maintaining the poppet in a closed position until pilot pressure at port 3 reaches the pre-set relief stage, causing the poppet to shift to an open state. This unique balanced construction ensures predictable and reliable switching under pressures up to 5000 psi (350 bar) at both port 1 and port 2. The DKFPLBV valve is characterized by its ability to handle backpressure at the drain port, which is additive to the valve setting, ensuring efficient operation under various pressure conditions. The reseating of the valve occurs when pilot pressure decreases to 85% of the cracking value, enhancing system safety and preventing leaks. Notably, ports 1 and 2 are effectively isolated from ports 3 and 4, ensuring no cross-contamination or leakage between these interfaces. With a maximum flow capacity of 30 gpm (120 L/min) and minimal leakage\u2014typically less than 10 drops/min at 5000 psi\u2014the DKFPLBV is designed for robust performance in demanding environments. It features Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. This design consideration extends the valve\u2019s operational life and reliability. Additional technical specifications include a T22A cavity design, Series 2 classification, and required minimum pilot pressure of 300 psi (20 bar) for valve shifting. The valve also supports a maximum operating pressure of up to 5000 psi (350 bar), accommodating high-pressure systems efficiently. Installation specifications such as hex sizes for the valve and adjustment screw as well as recommended torque settings ensure that installation is straightforward while maintaining system integrity and performance.
This is a normally closed, balanced poppet, switching element. When pilot pressure is applied to port 3, the poppet remains closed until the pilot pressure reaches the setting established by the integral pilot relief stage, at which point the poppet shifts to the open position.
- Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both port 1 and port 2. When the remote pressure signal at port 3 exceeds the internal valve setting, the valve shifts to the open position.
- Any backpressure at the drain port is directly additive to the valve setting.
- Valve will reseat when the pilot pressure falls to 85% of the cracking value.
- Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.
- Leakage rate between port 1 and port 2 is very low, typically less than 10 drops/min. at 5000 psi (0,7 cc/min at 350 bar).
- All ports will accept 5000 psi (350 bar).
- 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 | 30 gpm120 L/min. |
| Minimum Pilot Pressure Required to Shift Valve | 300 psi20 bar |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | See Performance DataSee Performance Data |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 drops/min.@5000 psi0,7 cc/min.@350 bar |
| 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 |
| Seal kit - Cartridge | Viton: 990-022-006 |
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