SUN HYDRAULICS
DCFFXHV
- SUN HYDRAULICS
- Material:DCFFXHV
- 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 DCFFXHV (DCFFXHV) is a two-position, 4-way directional cartridge valve with a spring-offset, 6-port configuration. This model can be customized with one of 9 different spool options according to specific application needs. The valve's supply port is designated as port 3, and it, along with all other ports including pilot ports (port 5 and port 6), can handle pressures up to 5000 psi or 350 bar. The DCFFXHV features capacities ranging from 50 to 200 gpm (200 to 760 L/min), depending on the spool type chosen. Each of these spool configurations has distinct capacities or performance limits due to flow forces, which are influenced by flow rate and pressure drop across the valve. These forces generally resist opening passages, particularly in configurations where passages spring center. If flow forces exceed the spring force meant to center the valve, incomplete shifting may occur; however, higher flows can be accommodated at lower pressures. The DCFFXHV boasts hardened spool and sleeve components that ensure low leakage rates and superior wear characteristics. It also incorporates Sun Hydraulics' floating style construction designed to minimize internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. Leakage for each path is specifically detailed in the technical data provided by Sun Hydraulics. Other technical specifications include a minimum pilot pressure requirement of 125 psi (9 bar) for valve shifting, a maximum leakage at 110 SUS (24 cSt) of 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar), and pilot volume displacement of .42 in\u00b3 (6.9 cc). The model requires an installation torque between 350 -375 lbf\u00b7ft (474 -508 Nm) and has an approximate weight of 3.90 lb (1.75 kg). For sealing purposes, it uses a Viton seal kit under part number: 990064006.
The Sun Hydraulics DCFFXHV (DCFFXHV) is a two-position, 4-way directional cartridge valve with a spring-offset, 6-port configuration. This model can be customized with one of 9 different spool options according to specific application needs. The valve's supply port is designated as port 3, and it, along with all other ports including pilot ports (port 5 and port 6), can handle pressures up to 5000 psi or 350 bar. The DCFFXHV features capacities ranging from 50 to 200 gpm (200 to 760 L/min), depending on the spool type chosen. Each of these spool configurations has distinct capacities or performance limits due to flow forces, which are influenced by flow rate and pressure drop across the valve. These forces generally resist opening passages, particularly in configurations where passages spring center. If flow forces exceed the spring force meant to center the valve, incomplete shifting may occur; however, higher flows can be accommodated at lower pressures. The DCFFXHV boasts hardened spool and sleeve components that ensure low leakage rates and superior wear characteristics. It also incorporates Sun Hydraulics' floating style construction designed to minimize internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. Leakage for each path is specifically detailed in the technical data provided by Sun Hydraulics. Other technical specifications include a minimum pilot pressure requirement of 125 psi (9 bar) for valve shifting, a maximum leakage at 110 SUS (24 cSt) of 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar), and pilot volume displacement of .42 in\u00b3 (6.9 cc). The model requires an installation torque between 350 -375 lbf\u00b7ft (474 -508 Nm) and has an approximate weight of 3.90 lb (1.75 kg). For sealing purposes, it uses a Viton seal kit under part number: 990064006.
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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