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SUN HYDRAULICS
DODPLBN


$131.55 USD
  • SUN HYDRAULICS
  • Material:DODPLBN
  • Model:DODP-LBN
  • 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 DODPLBN (DODPLBN) is a normally open, balanced poppet switching element designed for precise hydraulic control applications. This component features unique balanced construction that ensures predictable switching at pressures up to 5000 psi (350 bar) at both port 1 and port 2. The valve operates by allowing the poppet to remain open until the pilot pressure at port 3 surpasses the setting established by its integral pilot relief stage, subsequently shifting the poppet to a closed position. The valve will reopen when pilot pressure falls below 145 psi (10 bar). It is hydraulically balanced between ports 1 and 2, with these ports fully sealed from ports 3 and 4, ensuring minimal leakage\u2014typically less than 10 drops per minute at maximum operating pressure. The DODPLBN incorporates Sun's floating style construction, minimizing risks of internal binding due to installation torque or machining variations. It fits into a T-21A cavity, belongs to Series 1, and has a capacity of handling flow rates up to 15 gpm (60 L/min). The minimum pilot pressure required for shifting the valve is 400 psi (28 bar), while it supports a maximum operating pressure of up to 5000 psi (350 bar). For installation, it requires a hex size of 7/8 inches (22.2 mm) with an installation torque between 30 and 35 lbf ft (41 - 47 Nm). The adjustment screw uses an internal hex size of 5/32 inches (4 mm), and the locknut requires a hex size of 9/16 inches (15 mm) with a torque specification of between 80 and 90 lbf in (9 -10 Nm). This product also includes a Viton seal kit for enhanced durability in demanding environments.

This is a normally open, balanced poppet, switching element. When pilot pressure is applied to port 3, the poppet remains open until the pilot pressure reaches the setting established by the integral pilot relief stage, at which point the poppet shifts to the closed 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 closed position.
  • Any backpressure at the drain port is directly additive to the valve setting.
  • Valve will open when the pilot pressure falls below 145 psi (10 bar).
  • These valves are hydraulically balanced between port 1 and port 2.
  • 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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