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SUN HYDRAULICS
RVGALHN


$226.20 USD

Tags:

  • SUN HYDRAULICS
  • Material:RVGALHN
  • Model:RVGA-LHN
  • 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 RVGALHN (RVGALHN) is a ventable, pilot-operated, balanced piston relief cartridge designed to regulate pressure in hydraulic systems. This normally closed pressure regulating valve opens to tank port 2 when the inlet port 1 pressure reaches the set point, throttling flow to maintain desired pressure levels. It features a vent port 3 for remote control by other pilot or two-way valves, offering accuracy and low pressure rise versus flow. The valve is smooth, quiet, and moderately fast in operation. A remote pilot relief on vent port 3 allows control below the valve's own setting. This cartridge can handle maximum pressure at port 2 and is suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. It is not recommended for load-holding applications due to spool leakage. Backpressure at tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are designed for systems using phosphate ester fluids; exposure to petroleum-based products will damage these seals. The RVGALHN incorporates Sun's floating style construction to minimize internal parts binding due to excessive installation torque or cavity machining variations. It fits into a T-17A cavity and has a capacity of up to 60 gpm (240 L/min) with factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure is rated at 5000 psi (350 bar) with control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is around 10 ms, with maximum valve leakage of 4 in\u00b3/min (65 cc/min) at 1000 psi (70 bar). The adjustment requires up to five clockwise turns, and the model weighs approximately 1.60 lb (0.70 kg).

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.
  • 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-17A
Series3
Capacity60 gpm240 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)4 in³/min.@1000 psi65 cc/min.@70 bar
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size1 1/4 in.31,8 mm
Valve Installation Torque150 - 160 lbf ft203 - 217 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 Weight1.60 lb0,70 kg
Seal kit - CartridgeViton: 990-017-006

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