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SUN HYDRAULICS
DKHDEHN


$267.95 USD
  • SUN HYDRAULICS
  • Material:DKHDEHN
  • Model:DKHD-EHN
  • 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 DKHDEHN (DKHDEHN) is a sophisticated hydraulic valve designed for high-pressure applications, featuring a normally closed, balanced poppet switching element. This valve is particularly suited for systems where precision and reliability are paramount. The construction of the DKHDEHN allows it to operate effectively under a maximum pressure of 5000 psi (350 bar) at both port 1 and port 2, with the capability to handle up to 60 gpm (240 L/min). Its unique balanced design ensures predictable switching behavior and minimal leakage, typically less than 10 drops/min at maximum operating pressure. The DKHDEHN incorporates a floating style construction which minimizes the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. This feature enhances the overall durability and reliability of the valve in demanding operational conditions. It requires a minimum pilot pressure of 300 psi (20 bar) to shift effectively, and its external 4 SAE vent port can be directly connected to a pilot switching valve such as the Sun model DAA solenoid pilot valve, which complements its performance by meeting stringent leakage and flow requirements. This valve's design ensures that port 1 and port 2 are completely sealed off from port 3, maintaining system integrity even under varying pressure conditions. The total pilot volume displacement stands at approximately 0.05 in\u00b3 (0.82 cc), with an installation torque requirement between 150 -160 lbf\u00b7ft (203 -217 Nm). Additionally, all ports are capable of accepting pressures up to 5000 psi (350 bar), making the DKHDEHN a robust choice for high-pressure applications requiring precise hydraulic control and minimal fluid leakage.

This is a normally closed, balanced poppet, switching element. When the external vent port is blocked, the poppet remains in the closed position. Venting the external port shifts it to the open position, provided there is sufficient pressure at port 3.

  • Unique balanced construction provides predictable switching with 5000 psi (350 bar) at port 1 and port 2, with the external drain port open and a minimum pilot pressure of 300 psi (20 bar).
  • The external -4 SAE vent port may be directly connected to a pilot switching valve. The pilot valve should have a leakage rate of less than 10 drops/min (0,7 cc/min). and be able to satisfy the pilot flow requirements. Sun model DAA*-*** solenoid pilot valve is ideal for this application.
  • These valves are hydraulically balanced between port 1 and port 2.
  • 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).
  • Port 1 and port 2 are fully sealed from port 3.
  • 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 T-17A
Series 3
Capacity 60 gpm240 L/min.
Minimum Pilot Pressure Required to Shift Valve 300 psi20 bar
Maximum Operating Pressure 5000 psi350 bar
Control Pilot Flow See Performance DataSee Performance Data
Maximum Valve Leakage at 110 SUS (24 cSt) 10 drops/min.@5000 psi0,7 cc/min.@350 bar
Pilot Volume Displacement .05 in³0,82 cc
Valve Hex Size 1 1/4 in.31,8 mm
Valve Installation Torque 150 - 160 lbf ft203 - 217 Nm
Seal kit - Cartridge Viton: 990-017-006

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