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SUN HYDRAULICS
RVIACDN


$482.40 USD
  • SUN HYDRAULICS
  • Material:RVIACDN
  • Model:RVIA-CDN
  • 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 RVIACDN (RVIACDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when the inlet pressure reaches its set level, effectively throttling flow to manage system pressure. Featuring a vent port that enables remote control via other pilot or 2-way valves, it offers accuracy and a low-pressure rise versus flow, ensuring smooth and quiet operation with moderate speed. The valve can handle maximum pressure at port 2, making it suitable for cross-port relief circuits; however, users should be mindful of spool leakage in such applications. A stainless steel screen protects the main stage orifice from debris. It is crucial that the relief valve setting remains higher than the pilot valve setting for optimal performance. Notably, this cartridge is not recommended for load-holding applications due to potential leakage issues. The RVIACDN model incorporates Sun's floating style construction to reduce internal part binding risks caused by excessive installation torque or cavity machining variations. It supports a capacity of 120 gpm (480 L/min) with a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 15 to 20 in\u00b3/min (0.25 to 0.33 L/min), with a typical response time of 10 ms and maximum valve leakage at 5 in\u00b3/min (80 cc/min) under specified conditions. Installation requires specific torque settings and adjustments, including an internal hex size adjustment screw and locknut specifications. Additionally, cartridges configured with EPDM seals are compatible with systems using phosphate ester fluids but are vulnerable to petroleum-based substances. This product is ideal for applications requiring reliable pressure regulation without load-holding capabilities.

Ventable, pilot-operated, balanced piston 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. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.

  • A remote pilot relief on port 3 (vent) will control the valve below its own setting.
  • 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.
  • Relief valve setting must always be higher than pilot valve setting.
  • Not suitable for use in load holding applications due to spool leakage.
  • 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-19A
Series4
Capacity120 gpm480 L/min.
Factory Pressure Settings Established at4 gpm15 L/min.
Maximum Operating Pressure5000 psi350 bar
Control Pilot Flow15 - 20 in³/min.0,25 - 0,33 L/min.
Response Time - Typical10 ms10 ms
Maximum Valve Leakage at 110 SUS (24 cSt)5 in³/min.@1000 psi80 cc/min.@70 bar
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 Weight3.10 lb1,40 kg
Seal kit - CartridgeViton: 990-019-006

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