SUN HYDRAULICS
FTHCXWN
$818.57 USD
- SUN HYDRAULICS
- Material:FTHCXWN
- Model:FTHC-XWN
- 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 FTHCXWN (FTHCXWN) is a 4-way, 3-position proportional directional valve designed for precision control in hydraulic systems. This valve features work ports 2 and 4 drained to port 5 in the center position, with port 3 remaining closed. It operates by using pilot pressure at port 1 to oppose the spring, creating a variable metering orifice between ports 3 and 4 that adjusts proportionally to the pressure at port 1. Additionally, piloting at port 6 opens the connection between ports 3 and 2. The valve's design incorporates a force balance among flow forces, spring tension, and pilot pressure, offering partial self-compensation as load pressures fluctuate. The FTHCXWN has a maximum operating pressure of up to 5000 psi (350 bar) and requires a minimum pilot pressure of 80 psi (5.5 bar) to shift the valve. The maximum allowable pilot pressure for both ports 1 and 6 is capped at 500 psi (35 bar). This valve supports external modulation through logic elements such as LRCXHN for bypass circuits or LPCXHN for restrictive circuits to enhance flow control accuracy over varying conditions. Featuring Sun\u2019s floating style construction, this valve minimizes internal binding risks due to excessive installation torque or machining variations within cavities and cartridges. It fits into cavity T-54A and is part of Series 4 with a capacity of handling up to 80 gpm (320 L/min). With low hysteresis at \u00b12%, it ensures stable operation. For maintenance, Viton seal kits are available under part number: 990054006. This design allows for flexible applications where reliable performance under high-pressure conditions is critical while maintaining precise flow control capabilities.
The Sun Hydraulics FTHCXWN (FTHCXWN) is a 4-way, 3-position proportional directional valve designed for precision control in hydraulic systems. This valve features work ports 2 and 4 drained to port 5 in the center position, with port 3 remaining closed. It operates by using pilot pressure at port 1 to oppose the spring, creating a variable metering orifice between ports 3 and 4 that adjusts proportionally to the pressure at port 1. Additionally, piloting at port 6 opens the connection between ports 3 and 2. The valve's design incorporates a force balance among flow forces, spring tension, and pilot pressure, offering partial self-compensation as load pressures fluctuate. The FTHCXWN has a maximum operating pressure of up to 5000 psi (350 bar) and requires a minimum pilot pressure of 80 psi (5.5 bar) to shift the valve. The maximum allowable pilot pressure for both ports 1 and 6 is capped at 500 psi (35 bar). This valve supports external modulation through logic elements such as LRCXHN for bypass circuits or LPCXHN for restrictive circuits to enhance flow control accuracy over varying conditions. Featuring Sun\u2019s floating style construction, this valve minimizes internal binding risks due to excessive installation torque or machining variations within cavities and cartridges. It fits into cavity T-54A and is part of Series 4 with a capacity of handling up to 80 gpm (320 L/min). With low hysteresis at \u00b12%, it ensures stable operation. For maintenance, Viton seal kits are available under part number: 990054006. This design allows for flexible applications where reliable performance under high-pressure conditions is critical while maintaining precise flow control capabilities.
This valve is a 4-way, 3 position, proportional directional valve. Work ports 2 and 4 are drained to 5 in the center position and port 3 is closed. Pilot pressure at port 1 opposes the spring and creates a variable metering orifice between ports 3 and 4 that is proportional to the pressure at 1. Piloting 6 opens 3 to 2. 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 ports 1 and 6 directly oppose each other.
- Maximum pilot pressure for ports 1 and 6 should not exceed 500 psi (35 bar).
- 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.
- Pressure at ports 1 and 6 directly oppose each other.
- 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-54A |
| Series | 4 |
| Capacity | 80 gpm320 L/min. |
| Minimum Pilot Pressure Required to Shift Valve | 80 psi5,5 bar |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@1000 psi80 cc/min.@70 bar |
| Pilot Volume Displacement | .26 in³4,3 cc |
| Maximum Pilot Pressure | 500 psi35 bar |
| Hysteresis | ± 2 %± 2 % |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft475 - 508 Nm |
| Seal kit - Cartridge | Viton: 990-054-006 |
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