Model

DNDFLNN

X-Control, N-Spool
Control
Spool Configuration
Seal Material
Coil

Model: DNDF

4-way, 2-position, solenoid-operated directional spool valve (740 Series)

Cavity: T-31A | Capacity:

Model

DNDFLNN

X-Control, N-Spool
Control
Spool Configuration
Seal Material
Coil

Technical specifications

This solenoid-operated 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve.

  • The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
  • This valve is direct actuated and requires no minimum hydraulic pressure for operation.
  • 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.
  • 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.
  • 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
    10 gpm
  • Maximum Operating Pressure
    5000 psi
  • Manual Override Force Requirement
    5 lbs/1000 psi @ Port 1
  • Manual Override Stroke
    .10 in.
  • Maximum Valve Leakage at 110 SUS (24 cSt)
    10 in³/min.@3000 psi
  • Response Time - Typical
    50 ms
  • Switching Frequency
    15,000 max. cycles/hr
  • Solenoid Tube Diameter
    .63 in.
  • Coil Nut Torque
    3.5 - 3.9 lbf ft
  • Valve Hex Size
    7/8 in.
  • Valve Installation Torque
    30 - 35 lbf ft
  • Model Weight
    .55 lb
  • Seal and nut kit - Coil
  • Seal kit - Cartridge
  • Seal kit - Cartridge

Model CAD Files

Files not yet avialable. Click below to request them.

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