SUN HYDRAULICS
FKDALCN
$175.23 USD
- SUN HYDRAULICS
- Material:FKDALCN
- Model:FKDA-LCN
- 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 FKDALCN (Material Number: FKDALCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features normally closed ports 2 and 3, with pilot pressure at port 1 creating a metering orifice between these ports that adjusts proportionally to the pressure at port 1. The balance of flow forces, spring tension, and pilot pressure provides partial self-compensation as load pressure varies. Additionally, pressure at port 4 directly opposes that at port 1, allowing for further control adjustments. For enhanced precision in flow control, the valve can be paired with external modulating logic elements like LRCXHN for bypass circuits or LPCXHN for restrictive circuits. This setup helps maintain consistent flow across a broader range of pressures and flows. Ports 1 and 4 are limited to a maximum of 500 psi (35 bar), while the valve itself can handle up to 5000 psi (350 bar) with a capacity of up to 10 gpm (40 L/min). The optional tuning adjustment allows users to vary the pilot pressure required for flow control within an adjustment range of 50-300 psi (3.5-20 bar), with a standard setting of 100 psi (7 bar). The FKDALCN incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. It fits into the T-22A cavity and has minimal leakage rates under specified conditions. The valve's design also includes features like hysteresis management and easy manual adjustments via internal hex screws, ensuring reliable performance in demanding applications.
The Sun Hydraulics FKDALCN (Material Number: FKDALCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features normally closed ports 2 and 3, with pilot pressure at port 1 creating a metering orifice between these ports that adjusts proportionally to the pressure at port 1. The balance of flow forces, spring tension, and pilot pressure provides partial self-compensation as load pressure varies. Additionally, pressure at port 4 directly opposes that at port 1, allowing for further control adjustments. For enhanced precision in flow control, the valve can be paired with external modulating logic elements like LRCXHN for bypass circuits or LPCXHN for restrictive circuits. This setup helps maintain consistent flow across a broader range of pressures and flows. Ports 1 and 4 are limited to a maximum of 500 psi (35 bar), while the valve itself can handle up to 5000 psi (350 bar) with a capacity of up to 10 gpm (40 L/min). The optional tuning adjustment allows users to vary the pilot pressure required for flow control within an adjustment range of 50-300 psi (3.5-20 bar), with a standard setting of 100 psi (7 bar). The FKDALCN incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. It fits into the T-22A cavity and has minimal leakage rates under specified conditions. The valve's design also includes features like hysteresis management and easy manual adjustments via internal hex screws, ensuring reliable performance in demanding applications.
This valve is a 2-way, 2 position, proportional throttle. Ports 2 and 3 are normally closed. Pilot pressure at port 1 creates a metering orifice between port 2 and 3 that is proportional to the pressure at 1. The force balance of the flow forces, spring and pilot pressure results in a degree of partial self-compensation as the load pressure changes.
Pressure at port 4 directly opposes pressure at port 1.
- These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
- The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
- Ports 1 and 4 should be limited to 500 psi (35 bar).
- Pressure at port 4 directly opposes pressure at port 1.
- An optional tuning adjustment (L control) is offered to vary the pilot pressure required to control flow. The tuning adjustment provides a means to manually increase or decrease flow at a given pilot pressure. The adjustment range is 50 - 300 psi (3,5 - 20 bar), 100 psi (7 bar) Standard Setting.
- Accurate pressure compensated control requires that a constant pressure differential be maintained across 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-22A |
| Series | 2 |
| Capacity | 10 gpm40 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Pilot Volume Displacement | .03 in³.03 in³ |
| Minimum Pilot Pressure to Operate | 100 psi7 bar |
| Hysteresis | ± 2 %± 2 % |
| 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 | .30 lb0,15 kg |
| Seal kit - Cartridge | Viton: 990-022-006 |
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