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SUN HYDRAULICS
DKFDEHN


$158.85 USD
  • SUN HYDRAULICS
  • Material:DKFDEHN
  • Model:DKFD-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 DKFDEHN (DKFDEHN) is a high-performance hydraulic valve designed for precise control in fluid power applications. It features a normally closed, balanced poppet switching element that ensures reliable operation under varying conditions. The valve remains closed when the external vent port is blocked and shifts to an open position upon venting, provided there is adequate pressure at port 3. This functionality makes it suitable for applications requiring controlled flow and pressure management. With a robust capacity of 30 gpm/120 L/min and the ability to handle maximum operating pressures up to 5000 psi/350 bar, the DKFDEHN offers exceptional performance in demanding environments. It requires a minimum pilot pressure of 300 psi/20 bar to shift the valve, ensuring stable operation even under high-pressure scenarios. The external 4 SAE vent port can be connected directly to a pilot switching valve, such as the recommended Sun model DAA solenoid pilot valve, which complements the DKFDEHN by meeting stringent leakage and flow requirements. The design incorporates Sun\u2019s floating style construction which minimizes potential internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. This feature enhances the durability and reliability of the valve in industrial settings. Leakage between ports 1 and 2 is maintained at less than 10 drops/min at 5000 psi, demonstrating the valve's efficiency in maintaining system integrity. Overall, the Sun Hydraulics DKFDEHN valve is engineered for high-capacity fluid control applications where precision and reliability are critical. Its advanced design features ensure optimal performance and adaptability to various hydraulic systems.

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.
  • 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).
  • 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-2A
Series 2
Capacity 30 gpm120 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 .02 in³0,33 cc
Valve Hex Size 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm
Seal kit - Cartridge Viton: 990-202-006

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