SUN HYDRAULICS
DCFFXHN
- SUN HYDRAULICS
- Material:DCFFXHN
- Model:4-way, 2-position, pilot-to-shift directional valve
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 DCFFXHN (DCFFXHN) is a high-performance, two-position, 4-way directional cartridge valve with a range of configurations tailored to meet specific operational requirements. This model features nine different spool options, allowing for customization based on the desired flow and pressure conditions. The valve operates with a spring-offset mechanism and includes six ports, all capable of handling up to 5000 psi (350 bar). Its design incorporates hardened spool and sleeve components that ensure low leakage rates and superior wear characteristics. The DCFFXHN utilizes Sun's floating style construction which helps prevent internal parts from binding due to excessive installation torque or variations in cavity/cartridge machining. This contributes significantly to the reliability and longevity of the valve under various operational conditions. The valve's capacity ranges between 50 gpm (200 L/min) to 200 gpm (760 L/min), depending on the spool type used, making it versatile for different hydraulic flow requirements. For effective operation, a minimum pilot pressure of 125 psi (9 bar) is required to shift the valve. The maximum leakage at 110 SUS (24 cSt) does not exceed 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Each pilot port (port 5 and port 6) is positively sealed from the work ports, ensuring efficient performance without cross-port contamination. Additionally, this model has a specific pilot volume displacement of .42 in\u00b3 (6.9 cc), and it requires an installation torque between 350 - 375 lbf\u00b7ft (474 - 508 Nm). Weighing in at approximately 3.90 lbs (1.75 kg), the DCFFXHN maintains a compact and manageable size for easy integration into various hydraulic systems.
The Sun Hydraulics DCFFXHN (DCFFXHN) is a high-performance, two-position, 4-way directional cartridge valve with a range of configurations tailored to meet specific operational requirements. This model features nine different spool options, allowing for customization based on the desired flow and pressure conditions. The valve operates with a spring-offset mechanism and includes six ports, all capable of handling up to 5000 psi (350 bar). Its design incorporates hardened spool and sleeve components that ensure low leakage rates and superior wear characteristics. The DCFFXHN utilizes Sun's floating style construction which helps prevent internal parts from binding due to excessive installation torque or variations in cavity/cartridge machining. This contributes significantly to the reliability and longevity of the valve under various operational conditions. The valve's capacity ranges between 50 gpm (200 L/min) to 200 gpm (760 L/min), depending on the spool type used, making it versatile for different hydraulic flow requirements. For effective operation, a minimum pilot pressure of 125 psi (9 bar) is required to shift the valve. The maximum leakage at 110 SUS (24 cSt) does not exceed 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Each pilot port (port 5 and port 6) is positively sealed from the work ports, ensuring efficient performance without cross-port contamination. Additionally, this model has a specific pilot volume displacement of .42 in\u00b3 (6.9 cc), and it requires an installation torque between 350 - 375 lbf\u00b7ft (474 - 508 Nm). Weighing in at approximately 3.90 lbs (1.75 kg), the DCFFXHN maintains a compact and manageable size for easy integration into various hydraulic systems.
Two-position, 4-way directional cartridges are spring-offset, 6-port directional valves that can be configured from a choice of 9 different spool options. The supply port is port 3 and all ports will accept 5000 psi (350 bar). Capacity for these pilot-to-shift valves is dependent on the spool type specified.
- All ports will accept 5000 psi (350 bar), including the x and y pilot ports (port 5 and port 6).
- The reason for the different capacities, or performance limits, for the different spool configurations are flow forces. Flow forces are proportional to flow and pressure drop. Typically, they resist the opening of a passage. Spool configurations that open passages as they spring center are the most susceptible. If the flow forces due to the flow and pressure conditions exceed the centering spring force the valve may not shift completely. Higher flows may be used at lower pressures.
- Leakage listed in technical data is for each path.
- The pilot ports, 5 and 6, are positively sealed from the work ports.
- Hardened spool and sleeve provide consistent and low spool leakage rates and excellent wear characteristics.
- 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-64A |
| Series | 4 |
| Capacity | 50 - 200 gpm200 - 760 L/min. |
| Minimum Pilot Pressure Required to Shift Valve | 125 psi9 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Pilot Volume Displacement | .42 in³6,9 cc |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
| Model Weight | 3.90 lb1,75 kg |
| Seal kit - Cartridge | Viton: 990-064-006 |
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