Model

DOHSXHN

Control
Minimum Pilot Pressure
Seal Material
Material/Coating

Model: DOHS

Normally open, balanced poppet, logic element - pilot-to-close

Cavity: T-23A | Capacity:

Model

DOHSXHN

Control
Minimum Pilot Pressure
Seal Material
Material/Coating

Technical specifications

This is a normally open, balanced poppet, switching element. Pilot pressure at port 3 shifts the valve to the closed position.

  • Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both ports 1 and 2, with the external drain open and a minimum pilot pressure of 300 psi (20 bar).
  • Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.
  • Any backpressure at the drain port is directly additive to the required pilot pressure for reliable operation.
  • Leakage rate between port 1 and port 2 is very low, typically less than 10 drops/min. at 5000 psi (0,7 cc/min at 350 bar).
  • Valve will reseat when the pilot pressure falls below 145 psi (10 bar).
  • 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.
  • These valves are hydraulically balanced between port 1 and port 2.
  • All ports will accept 5000 psi (350 bar).
  • 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
    60 gpm
  • Maximum Operating Pressure
    5000 psi
  • Minimum Pilot Pressure Required to Shift Valve
    300 psi
  • Maximum Valve Leakage at 110 SUS (24 cSt)
    10 drops/min.@5000 psi
  • Pilot Volume Displacement
    .05 in³
  • Valve Hex Size
    1 1/4 in.
  • Valve Installation Torque
    150 - 160 lbf ft
  • Seal kit - Cartridge
  • Seal kit - Cartridge
  • Seal kit - Cartridge
  • Seal kit - Cartridge

Model CAD Files

Click the link of the file format you want to download.

Symbol CAD Files

Click the link of the file format you want to download.

  • What parts of the Sun cartridge valve are field serviceable?
  • I need to discharge a large accumulator. How can I increase the capacity of my discharge circuit?
  • How big is a drop of hydraulic oil?  
  • Direct acting or pilot operated - what do I use?