SUN HYDRAULICS
FKFALCV
$313.43 USD
- SUN HYDRAULICS
- Material:FKFALCV
- Model:FKFA-LCV
- 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 FKFALCV (Material Number: FKFALCV) is a high-performance 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features ports 2 and 3 that are normally closed, with pilot pressure at port 1 creating a metering orifice between these ports, allowing flow control that is proportional to the pressure at port 1. The valve's design incorporates a force balance of flow forces, spring tension, and pilot pressure, resulting in partial self-compensation as load pressures vary. For enhanced accuracy in flow control, the valve can be paired with an external modulating logic element such as the LRCXHN for bypass circuits or LPCXHN for restrictive circuits. The FKFALCV offers a degree of self-compensation and can be used independently as a flow control solution. The valve operates within a maximum pressure limit of 5000 psi (350 bar) and has a capacity of up to 20 gpm (80 L/min). Ports 1 and 4 should not exceed pressures of 500 psi (35 bar), as pressure at port 4 directly opposes that at port 1. An optional tuning adjustment labeled 'L' allows modification of the pilot pressure required to achieve desired flow rates, with an adjustment range between 50-250 psi (3.5-15 bar). The standard setting is typically around 100 psi (7 bar). This product utilizes Sun's floating style construction to minimize binding risks due to installation torque or machining variations. Additional specifications include a cavity size T-23A, series number 3, and minimal leakage rates under specified conditions. It requires an installation torque of between 150-160 lbf ft (203-217 Nm) and features easy adjustments via internal hex screws and locknuts.
The Sun Hydraulics FKFALCV (Material Number: FKFALCV) is a high-performance 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features ports 2 and 3 that are normally closed, with pilot pressure at port 1 creating a metering orifice between these ports, allowing flow control that is proportional to the pressure at port 1. The valve's design incorporates a force balance of flow forces, spring tension, and pilot pressure, resulting in partial self-compensation as load pressures vary. For enhanced accuracy in flow control, the valve can be paired with an external modulating logic element such as the LRCXHN for bypass circuits or LPCXHN for restrictive circuits. The FKFALCV offers a degree of self-compensation and can be used independently as a flow control solution. The valve operates within a maximum pressure limit of 5000 psi (350 bar) and has a capacity of up to 20 gpm (80 L/min). Ports 1 and 4 should not exceed pressures of 500 psi (35 bar), as pressure at port 4 directly opposes that at port 1. An optional tuning adjustment labeled 'L' allows modification of the pilot pressure required to achieve desired flow rates, with an adjustment range between 50-250 psi (3.5-15 bar). The standard setting is typically around 100 psi (7 bar). This product utilizes Sun's floating style construction to minimize binding risks due to installation torque or machining variations. Additional specifications include a cavity size T-23A, series number 3, and minimal leakage rates under specified conditions. It requires an installation torque of between 150-160 lbf ft (203-217 Nm) and features easy adjustments via internal hex screws and locknuts.
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 - 250 psi (3,5 - 15 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-23A |
| Series | 3 |
| Capacity | 20 gpm80 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 4 in³/min.@1000 psi65 cc/min.@70 bar |
| Pilot Volume Displacement | .10 in³1,6 cc |
| Minimum Pilot Pressure to Operate | 100 psi7 bar |
| Hysteresis | ± 2 %± 2 % |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 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: 990-023-006 |
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