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SUN HYDRAULICS
RPGEJQN


$93.52 USD
  • SUN HYDRAULICS
  • Material:RPGEJQN
  • Model:RPGE-JQN
  • 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 RPGEJQN (RPGEJQN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve is engineered for rapid opening and closing, prioritizing speed over smoothness. When the inlet port 1 reaches the valve setting pressure, the valve opens to tank port 2, throttling flow to manage pressure rise efficiently. It features low pressure rise versus flow characteristics and exceptional responsiveness with a typical response time of 2 milliseconds. The RPGEJQN model is physically and functionally interchangeable with all other 2-port relief cartridges of the same frame size, making it versatile for various applications. The valve can handle a maximum operating pressure of 5000 psi (350 bar) and a capacity of 50 gpm (200 L/min). It incorporates Sun's floating style construction to minimize binding risks due to installation torque or machining variations. The main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability and reliability in operation. This model is suitable for use in cross port relief circuits but not recommended for load holding applications due to spool leakage considerations. The back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges configured with EPDM seals are intended for phosphate ester fluid systems; exposure to petroleum-based fluids can damage these seals. Installation specifications include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque range of 45-50 lbf-ft (61-68 Nm). Adjustment features include an internal hex size of 5/32 inches (4 mm) for the adjustment screw and a locknut torque range of 80-90 lbf-in (9-10 Nm). The model weighs approximately .50 lb (.25 kg), making it lightweight yet robust for demanding hydraulic applications.

Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting valves used to protect hydraulics components from pressure transients. Fast opening and closing is gained at the expense of smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves have low pressure rise vs. flow and are very fast.

  • All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
  • Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
  • Main stage orifice is protected by a 150 micron stainless steel screen.
  • Not suitable for use in load holding applications due to spool leakage.
  • Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
  • Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
  • 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-3A
Series2
Capacity50 gpm200 L/min.
Factory Pressure Settings Established at4 gpm15 L/min.
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical2 ms2 ms
Maximum Valve Leakage at 110 SUS (24 cSt)3 in³/min.@1000 psi50 cc/min.@70 bar
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: 990-203-006

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Notes:
  • For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.