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SUN HYDRAULICS
DCFFXRN


$729.41 USD
  • SUN HYDRAULICS
  • Material:DCFFXRN
  • Model:4-way, 2-position, pilot-to-shift directional valve
  • Summary:Cartridge

Quantity in stock: 0

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***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 DCFFXRN (DCFFXRN) is a versatile, two-position, 4-way directional cartridge valve featuring a spring-offset, 6-port configuration suitable for various hydraulic applications. This model can be customized with one of nine different spool options to meet specific system requirements. It is designed to handle high-pressure operations up to 5000 psi (350 bar) across all ports, including pilot ports 5 and 6. The valve's performance varies depending on the chosen spool type due to the influence of flow forces, which are proportional to flow and pressure drop and can impact the valve\u2019s shifting ability under certain conditions. The DCFFXRN valve features hardened spool and sleeve components that ensure low leakage rates and exceptional wear resistance, contributing to reliable and consistent operation over time. It also incorporates Sun's floating style construction which minimizes internal part binding caused by excessive installation torque or variations in cavity/cartridge machining. This model offers a flow capacity range between 50-200 gpm (200-760 L/min), requires a minimum pilot pressure of 125 psi (9 bar) for shifting, and has a maximum leakage rate of 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). Additionally, the valve has specific installation requirements including 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 DCFFXRN model is approximately 3.90 lbs (1.75 kg). For maintenance or replacement needs, 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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