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SUN HYDRAULICS
RPKSKBV


$452.20 USD

Tags:

  • SUN HYDRAULICS
  • Material:RPKSKBV
  • Model:RPKS-KBV
  • 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 RPKSKBV (RPKSKBV) is a pilot-operated, balanced poppet relief cartridge designed for efficient pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when inlet pressure reaches its set point, allowing for precise pressure control. Known for its accuracy, smooth operation, and low noise levels, the RPKSKBV is engineered to handle maximum pressure at port 2 and is ideal for cross port relief circuits. It maintains performance consistency despite variations in oil temperature and contamination levels. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. Back pressure on the tank port directly influences the valve setting at a 1:1 ratio, allowing for straightforward adjustments using W or Y controls with or without a special setting. The corrosion-resistant design features either stainless steel or zinc-nickel plated components, suitable for harsh environments. Its floating style construction minimizes internal part binding due to installation torque or machining variations. The RPKSKBV fits into a T-18A cavity and can handle up to 200 gpm (760 L/min) with a maximum operating pressure of 5000 psi (350 bar). It offers a typical response time of 7 ms and minimal leakage at reseat with only 10 drops/minute. The valve's adjustable settings are fine-tuned through clockwise turns up to five times with specific hex sizes provided for adjustment screw and locknut operations. Weighing in at 2.50 lbs (1.15 kg), this cartridge includes Viton seals as standard equipment, ensuring optimal performance across various applications where precise hydraulic pressure control is crucial.

Pilot-operated, balanced-poppet relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. These valves are accurate, smooth, quiet, fast, and have low pressure rise vs. flow.

  • 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.
  • Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
  • Main stage orifice is protected by a 150 micron stainless steel screen.
  • Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
  • W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
  • Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of Construction page located under TECH RESOURCES.
  • 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-18A
Series4
Capacity200 gpm760 L/min.
Factory Pressure Settings Established at4 gpm15 L/min.
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical7 ms7 ms
Maximum Valve Leakage at Reseat10 drops/min.0,7 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size1 5/8 in.41,3 mm
Valve Installation Torque350 - 375 lbf ft474 - 508 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 Weight2.50 lb1,15 kg
Seal kit - CartridgeViton: 990-318-006

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