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SUN HYDRAULICS
DKFRXHV


$167.78 USD
  • SUN HYDRAULICS
  • Material:DKFRXHV
  • Model:DKFR-XHV
  • Summary:Cartridge

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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 DKFRXHV (DKFRXHV) is a high-performance hydraulic valve designed for precise fluid control in demanding applications. This model, part of the T22A series, features a normally closed, balanced poppet switching element that operates effectively up to 5000 psi (350 bar). The valve's unique construction ensures reliable switching and minimal leakage, with less than 10 drops per minute at maximum pressure, enhancing system efficiency and reducing maintenance needs. The DKFRXHV valve is equipped with multiple ports: ports 1 and 2 are fully sealed from ports 3 and 4, which are also positively sealed. This configuration allows for versatile connection possibilities and ensures that the internal components are protected from external contaminants. Additionally, the valve supports a maximum flow capacity of 30 gpm (120 L/min), making it suitable for a wide range of flow rates required in industrial applications. Key to its operation is the pilot pressure requirement; the valve needs a minimum of 300 psi (20 bar) at port 3 to shift effectively. The venting of port 4 enables the shifting of the poppet to an open position when necessary. For optimal performance, this model can be paired with Sun\u2019s DAA solenoid pilot valve, which matches the leakage specifications and fulfills pilot flow requirements. Constructed with Sun's floating style design, the DKFRXHV minimizes risks associated with installation errors or cavity/cartridge machining variations. This feature helps ensure longevity and consistent performance even under varying operational conditions. The installation specifications include a hex size of 1-1/8 in (28.6 mm) and a torque range of 45-50 lbf-ft (61-68 Nm). Weighing just .65 lb (0.30 kg), this compact valve integrates seamlessly into various hydraulic systems without adding significant weight or complexity.

This is a normally closed, balanced poppet, switching element. When the vent port (port 4) is blocked, the poppet remains in the closed position. Venting port 4 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 both ports 1 and 2, with the vent (port 4) open and a minimum pilot pressure of 400 psi (30 bar) at port 3.
  • Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.
  • 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 4 may be externally connected to a pilot switching valve. The pilot valve should have a leakage rate of less than 10 drops/min. and be able to satisfy the pilot flow requirements. Sun model DAA*-*** solenoid pilot valve is ideal for this application.
  • 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-22A
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
Valve Hex Size 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm
Model Weight .65 lb0,30 kg
Seal kit - Cartridge Viton: 990-022-006

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