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SUN HYDRAULICS
DKDPLBV


$140.48 USD
  • SUN HYDRAULICS
  • Material:DKDPLBV
  • Model:DKDP-LBV
  • 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 DKDPLBV (DKDPLBV) is a high-performance hydraulic valve designed for advanced fluid power applications. This model features a normally closed, balanced poppet switching element that operates under a pilot pressure system. The unique balanced construction of the DKDPLBV ensures predictable and stable switching between ports, capable of handling pressures up to 5000 psi (350 bar) at both port 1 and port 2. When pilot pressure is applied to port 3, the valve remains closed until this pressure surpasses a pre-set threshold determined by an integral pilot relief stage, at which point the valve shifts to an open position. This system allows for precise control over fluid flow, making it ideal for applications requiring reliable actuation based on fluctuating pressure levels. The DKDPLBV also features low leakage rates between ports 1 and 2\u2014typically less than 10 drops per minute at maximum pressure\u2014which is crucial for maintaining system efficiency and minimizing fluid loss. Additionally, any backpressure at the drain port directly adds to the valve setting, enhancing the operational flexibility of this model. This valve is designed with Sun's floating style construction which minimizes the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. It supports a maximum flow capacity of 15 gpm (60 L/min) and requires a minimum pilot pressure of 400 psi (28 bar) to shift the valve, ensuring robust performance in demanding environments. The DKDPLBV's design also includes multiple hex sizes for adjustment and installation, providing ease of use during setup and maintenance.

This is a normally closed, balanced poppet, switching element. When pilot pressure is applied to port 3, the poppet remains closed until the pilot pressure reaches the setting established by the integral pilot relief stage, at which point the poppet shifts to the open position.

  • Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both port 1 and port 2. When the remote pressure signal at port 3 exceeds the internal valve setting, the valve shifts to the open position.
  • Any backpressure at the drain port is directly additive to the valve setting.
  • Valve will reseat when the pilot pressure falls to 85% of the cracking value.
  • 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).
  • 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-21A
Series 1
Capacity 15 gpm60 L/min.
Minimum Pilot Pressure Required to Shift Valve 400 psi28 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 7/8 in.22,2 mm
Valve Installation Torque 30 - 35 lbf ft41 - 47 Nm
Adjustment Screw Internal Hex Size 5/32 in.4 mm
Locknut Hex Size 9/16 in.15 mm
Locknut Torque 80 - 90 lbf in.9 - 10 Nm
Seal kit - Cartridge Viton: 990-021-006

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