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SUN HYDRAULICS
RSDSLBN


$102.95 USD
  • SUN HYDRAULICS
  • Material:RSDSLBN
  • Model:RSDS-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 RSDSLBN (RSDSLBN) is a pilot-operated, balanced poppet sequence valve designed to manage fluid flow in hydraulic systems by supplying a secondary circuit once the inlet pressure exceeds a predetermined setting. This versatile component features a three-port configuration that is both physically and functionally interchangeable across similar frame sizes, allowing for seamless integration into existing systems. Operating with a maximum pressure of 5000 psi (350 bar), the valve is particularly suited for load-holding applications and cross-port relief circuits, thanks to its ability to handle maximum pressure at port 2. The RSDSLBN valve incorporates Sun's floating style construction to prevent internal binding due to installation torque or machining variations, enhancing reliability. Its main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and performance under demanding conditions. The valve's response time is typically around 10 milliseconds, offering quick adjustments in dynamic environments. Designed with user flexibility in mind, the pressure at port 3 directly adds to the valve setting at a 1:1 ratio but should not surpass the maximum operating pressure of 5000 psi. The adjustment mechanism allows for fine-tuning through five clockwise turns to increase the setting, with installation torque recommended between 30-35 lbf ft (41-47 Nm). The locknut hex size is set at 9/16 inches with an accompanying torque specification of 80-90 lbf in (9-10 Nm). With a capacity of up to 15 gpm (60 L/min) and minimal leakage at reseat points, this valve ensures efficient operation while mitigating common issues like cavitation-related noise and manifold erosion. Weighing just .30 lb (.15 kg), it offers robust performance without adding significant weight to hydraulic assemblies.

Pilot-operated, balanced poppet sequence valves will supply a secondary circuit with flow once the pressure at the inlet (port 1) has exceeded the valve setting. The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.

  • All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
  • Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
  • The main stage orifice is protected by a 150 micron stainless steel screen.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Suitable for use in load holding applications.
  • Because the modulating occurs inside the cartridge these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
  • Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
  • 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.

CavityT-11A
Series1
Capacity15 gpm60 L/min.
Factory Pressure Settings Established at4 gpm15 L/min.
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical10 ms10 ms
Maximum Valve Leakage at Reseat10 drops/min.0,7 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size7/8 in.22,2 mm
Valve Installation Torque30 - 35 lbf ft41 - 47 Nm
Locknut Hex Size9/16 in.15 mm
Locknut Torque80 - 90 lbf in.9 - 10 Nm
Model Weight.30 lb0,15 kg
Seal kit - CartridgeViton: 990-011-006

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