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SUN HYDRAULICS
RSFSKAV


$142.97 USD
  • SUN HYDRAULICS
  • Material:RSFSKAV
  • Model:RSFS-KAV
  • 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 RSFSKAV (RSFSKAV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 exceeds the preset valve setting. It maintains control of pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. This makes it suitable for regulating pressure in place of two-port relief valves when there's pressure in the return line. The RSFSKAV is interchangeable with other three-port sequence cartridges within the same frame size, featuring consistent flow paths and cavity dimensions. The valve's design includes a 150-micron stainless steel screen protecting the main stage orifice and allows for maximum pressure at port 2, making it apt for cross-port relief circuits and load holding applications. Its construction minimizes issues like cavitation-related noise and manifold erosion by modulating inside the cartridge. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), it responds typically within 10 ms. The factory-established pressure settings are set at a flow rate of 4 gpm (15 L/min). The RSFSKAV features Sun's floating style construction, reducing risks of internal part binding due to excessive installation torque or machining variations. It requires an installation torque between 45-50 lbf ft (61-68 Nm), with an adjustment screw internal hex size of 5/32 in (4 mm). The valve's locknut hex size is 9/16 in (15 mm) with a recommended locknut torque of 80-90 lbf in (9-10 Nm). Additionally, it has minimal leakage at reseat, measuring up to only ten drops per minute or approximately 0.7 cc/min. The unit weighs approximately .50 lb (.25 kg) and uses Viton seal kits for enhanced durability and performance.

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-2A
Series2
Capacity30 gpm120 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 Size1 1/8 in.28,6 mm
Valve Installation Torque45 - 50 lbf ft61 - 68 Nm
Adjustment Screw Internal Hex Size5/32 in.4 mm
Locknut Hex Size9/16 in.15 mm
Locknut Torque80 - 90 lbf in.9 - 10 Nm
Model Weight.50 lb0,25 kg
Seal kit - CartridgeViton: 990-402-006

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