SUN HYDRAULICS
DCFFXAN
- SUN HYDRAULICS
- Material:DCFFXAN
- 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 DCFFXAN (DCFFXAN) is a two-position, 4-way directional cartridge valve featuring a spring-offset, 6-port configuration that can be adapted with one of nine different spool options depending on specific application needs. The valve\u2019s supply port is designated as port 3, and it is capable of handling pressures up to 5000 psi (350 bar). This model is particularly versatile due to its pilot-to-shift design, where the capacity and performance can vary based on the selected spool type, largely influenced by flow forces which are proportional to flow and pressure drop. Each path within the DCFFXAN exhibits specific leakage rates as detailed in its technical specifications. The pilot ports (ports 5 and 6) are securely sealed from the work ports, enhancing the operational integrity of the valve. Durability and consistent performance are ensured through a hardened spool and sleeve that also minimize spool leakage rates. Additionally, this model incorporates Sun\u2019s floating style construction which helps prevent internal parts binding that might occur due to excessive installation torque or variations in cavity/cartridge machining. Key specifications include a flow capacity range of 50 to 200 gpm (200 to 760 L/min), with a minimum pilot pressure requirement of 125 psi (9 bar) necessary for shifting the valve. The maximum valve leakage at optimal conditions is noted at 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Installation specifications include a hex size of 1-5/8 inches (41.3 mm) and an installation torque between 350 -375 lbf\u00b7ft (474 -508 Nm). The overall weight of the DCFFXAN model is approximately 3.90 lbs (1.75 kg). For maintenance or repairs, a Viton seal kit (990064006) is recommended for use with this cartridge valve.
The Sun Hydraulics DCFFXAN (DCFFXAN) is a two-position, 4-way directional cartridge valve featuring a spring-offset, 6-port configuration that can be adapted with one of nine different spool options depending on specific application needs. The valve\u2019s supply port is designated as port 3, and it is capable of handling pressures up to 5000 psi (350 bar). This model is particularly versatile due to its pilot-to-shift design, where the capacity and performance can vary based on the selected spool type, largely influenced by flow forces which are proportional to flow and pressure drop. Each path within the DCFFXAN exhibits specific leakage rates as detailed in its technical specifications. The pilot ports (ports 5 and 6) are securely sealed from the work ports, enhancing the operational integrity of the valve. Durability and consistent performance are ensured through a hardened spool and sleeve that also minimize spool leakage rates. Additionally, this model incorporates Sun\u2019s floating style construction which helps prevent internal parts binding that might occur due to excessive installation torque or variations in cavity/cartridge machining. Key specifications include a flow capacity range of 50 to 200 gpm (200 to 760 L/min), with a minimum pilot pressure requirement of 125 psi (9 bar) necessary for shifting the valve. The maximum valve leakage at optimal conditions is noted at 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Installation specifications include a hex size of 1-5/8 inches (41.3 mm) and an installation torque between 350 -375 lbf\u00b7ft (474 -508 Nm). The overall weight of the DCFFXAN model is approximately 3.90 lbs (1.75 kg). For maintenance or repairs, a Viton seal kit (990064006) is recommended for use with this cartridge valve.
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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