SUN HYDRAULICS
RVGELWN

$290.20 USD

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SUN HYDRAULICS
Material:RVGELWN
Model:RVGE-LWN
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 RVGELWN (RVGELWN) is a fast-acting, ventable, pilot-operated, balanced piston relief cartridge designed as a pressure regulating valve. This model is normally closed and begins to open to tank port 2 when the inlet port 1 pressure reaches the set threshold, effectively throttling flow to maintain regulated pressure. It features a vent port (port 3) between the main piston and pilot stage, allowing for remote control by other pilot or two-way valves. The RVGELWN valve is noted for its low pressure rise versus flow and rapid response time of approximately 2 milliseconds. It can accept maximum pressure at port 2, making it 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, although it is not recommended for load-holding applications due to potential spool leakage. The valve's back pressure at tank port 2 directly adds to the valve setting at a 1:1 ratio. Its floating style construction minimizes internal part binding due to excessive installation torque or cavity/cartridge machining variations. The RVGELWN has a capacity of up to 60 gpm (240 L/min) and operates under pressures up to 5000 psi (350 bar). Control pilot flow ranges from 15-20 in\u00b3/min (0.25-0.33 L/min), with maximum valve leakage at specified conditions being 4 in\u00b3/min (65 cc/min). Adjustment involves up to five clockwise turns to increase settings, with specific torque requirements for installation and adjustments provided for optimal performance. The model weighs approximately 1.60 lb (0.70 kg) and includes a Viton seal kit option under cartridge number 990017006 for maintenance needs.

Description

Fast-acting, 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 have low pressure rise vs. flow and are very 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.
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.

Cavity	T-17A
Series	3
Capacity	60 gpm240 L/min.
Factory Pressure Settings Established at	4 gpm15 L/min.
Maximum Operating Pressure	5000 psi350 bar
Control Pilot Flow	15 - 20 in³/min.0,25 - 0,33 L/min.
Response Time - Typical	2 ms2 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 Setting	55
Valve Hex Size	1 1/4 in.31,8 mm
Valve Installation Torque	150 - 160 lbf ft203 - 217 Nm
Adjustment Screw Internal Hex Size	5/32 in.4 mm
Locknut Hex Size	9/16 in.15 mm
Locknut Torque	80 - 90 lbf in.9 - 10 Nm
Model Weight	1.60 lb0,70 kg
Seal kit - Cartridge	Viton: 990-017-006

Show FAQ

Where would I use a kick-down relief?	One graphic example is on a portable grain auger for silos. When the farmer gets caught in the auger the kick-down relief trips and allows him to escape.
What are the tolerances on pressure settings for Sun's pressure control valves?	Pressure setting tolerances are listed in our Performance Data page. A link to this page can also be found in the Additional Resources tab of the applicable product page.
How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Can I use a kick-down relief for my system relief?	Maybe not. We build in a good amount of overlap in the kick-down reliefs to prevent false tripping. This means they are not as fast as our standard pilot-operated reliefs. A direct-acting relief valve set just above the kick-down relief valve would be good insurance.
Direct acting or pilot operated - what do I use?	Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

SUN HYDRAULICSRVGELWN

Additional Resources

SUN HYDRAULICS
RVGELWN