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SUN HYDRAULICS
RVIACCV


$493.32 USD
  • SUN HYDRAULICS
  • Material:RVIACCV
  • Model:RVIA-CCV
  • Summary:Cartridge

Quantity in stock: 0

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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 RVIACCV (RVIACCV) is a ventable, pilot-operated, balanced piston relief cartridge designed as a normally closed pressure regulating valve. It effectively manages pressure by opening to tank port 2 when the inlet port 1 reaches the designated valve setting, thereby throttling flow to maintain the desired pressure level. This model features a vent port (port 3) for remote control via other pilot or two-way valves, ensuring precise and smooth operation with low pressure rise versus flow. Notably, it can handle maximum pressure at port 2, making it suitable for cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and cartridges with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances can damage these seals. The RVIACCV incorporates Sun's floating style construction to reduce potential binding issues due to over-torquing or machining discrepancies. This cartridge fits into cavity T-19A with a series 4 capacity of up to 120 gpm (480 L/min) and operates at a maximum 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 approximately 10 ms. The valve's design includes an adjustment screw internal hex size of 5/32 inches and requires an installation torque between 350 and 375 lbf ft (474 to 508 Nm). The model weighs approximately 3.10 lb (1.40 kg), and its adjustment mechanism allows for up to five clockwise turns to increase the setting. However, it is not suitable for load-holding applications due to potential spool leakage issues.

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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