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SUN HYDRAULICS
RBAEKDN


$83.39 USD
  • SUN HYDRAULICS
  • Material:RBAEKDN
  • Model:RBAE-KDN
  • 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 RBAEKDN (RBAEKDN) is a two-port, pilot-stage, direct-acting relief cartridge designed for pressure regulation in hydraulic systems. This fully adjustable, normally closed valve opens a flow path from port 1 to port 2 when the inlet pressure at port 1 surpasses the spring force setting. It utilizes the Sun T8A two-port cavity, making it ideal for integration with Sun's main stage pilot or vent-to-operate cartridges. The design eliminates the need for separate pilot lines and requires only one cavity to accommodate both control and primary functions. The valve's hardened poppet and seat ensure consistent operation, low leakage rates, and superior wear characteristics. It can handle pressures up to 5000 psi (350 bar) at both ports 1 and 2. The RBAEKDN features Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. It incorporates EPDM seals suitable for systems using phosphate ester fluids; however, these seals should not be exposed to petroleum-based fluids as they may cause damage. The cartridge's factory pressure settings are established at a flow rate of 2 in\u00b3/min (30 cc/min), with a maximum operating pressure of 5000 psi (350 bar). Its response time is typically around 2 ms, with maximum leakage of 15 drops/min (1 cc/min) at a viscosity of 110 SUS (24 cSt). Installation specifications include a valve hex size of 7/8 inch (22.2 mm) and an installation torque range of 20-25 lbf\u00b7ft (27-33 Nm). The adjustment screw has an internal hex size of 5/32 inch (4 mm), while the locknut has a hex size of 9/16 inch (15 mm) with a torque requirement of 80-90 lbf\u00b7in (9-10 Nm). The valve is supplied with Viton seal kits under part number 990608006.

Two-port, pilot-stage, direct-acting relief cartridges are fully adjustable, normally closed pressure regulating valves. When the pressure at port 1 (inlet) is sufficient to overcome the spring force (valve setting), a flow path is opened from port 1 to port 2 (tank).

  • Utilizes the Sun T-8A 2-port cavity making it the ideal choice to use in conjunction with Sun's main stage pilot or vent-to-operate cartridges. Separate pilot lines are eliminated and only one cavity needs to be machined to accommodate both the control and primary function. Note: All 2-position, 2-way pilot stage control cartridges utilize the same cavity and are physically interchangeable. Functionality is the only consideration.
  • Note: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value.
  • Ports 1 and 2 may be pressured to 5000 psi (350 bar).
  • Hardened poppet and seat provide consistent operation, low leakage rates and superior wear characteristics.
  • Backpressure at port 2 (outlet) is directly additive to the pressure setting at port 1 (inlet).
  • 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-8A
SeriesP
Capacity2.5 gpm10 L/min.
Factory Pressure Settings Established at2 in³/min.30 cc/min.
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical2 ms2 ms
Maximum Valve Leakage at 110 SUS (24 cSt)15 drops/min.1 cc/min.
Valve Hex Size7/8 in.22,2 mm
Valve Installation Torque20 - 25 lbf ft27 - 33 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
Seal kit - CartridgeViton: 990-608-006

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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.