Model

DFFJXCN

X-Control, C-Poppet
Control
Poppet Configuration
Seal Material
Coil

Model: DFFJ

2-way, 2-stage, solenoid-operated directional poppet valve - flow 2-1 (740 Series)

Cavity: T-18A | Capacity:

Model

DFFJXCN

X-Control, C-Poppet
Control
Poppet Configuration
Seal Material
Coil

Technical specifications

This solenoid controlled, 2-way, 2-position cartridge is a pilot-operated, poppet style directional valve with reverse free flow check. It is available in either a normally open or normally closed configuration. Due to its poppet style construction, it has extremely low leakage. This valve is designed to be used with 740 and 747 Series coils.

  • The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
  • Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
  • All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
  • Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
  • This cartridge has an option for manual override. See the CONFIGURATION section.
  • Valves exhibit extremely low leakage rates; less than 10 drops/min. @ 5000 psi (0,7 cc/min @ 350 bar).
  • On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control assemblies have a mechanical life expectancy of approximately 7,000 cycles.
  • This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
  • A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
  • The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
  • Coils can be mounted on the tube in either direction.
  • 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
  • Series
  • Capacity
    120 gpm
  • Maximum Operating Pressure
    5000 psi
  • Check Cracking Pressure
    50 psi
  • Maximum Valve Leakage at 110 SUS (24 cSt)
    10 drops/min.@5000 psi
  • Response Time - Typical
    30 ms
  • Switching Frequency
    15,000 max. cycles/hr
  • Solenoid Tube Diameter
    .63 in.
  • Valve Hex Size
    1 5/8 in.
  • Valve Installation Torque
    350 - 375 lbf ft
  • Model Weight
    2.80 lb
  • Seal kit - Cartridge
  • Seal kit - Cartridge
  • Seal kit - Cartridge

Model CAD Files

Files not yet avialable. Click below to request them.

  • What parts of the Sun cartridge valve are field serviceable?
  • How big is a drop of hydraulic oil?  
  • Direct acting or pilot operated - what do I use?
  • Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
  • An additional 2.00 inches (50,8 mm) beyond the valve extension is needed for coil installation and removal.