SUN HYDRAULICS
RVGDLDN

$348.47 USD

SUN HYDRAULICS
Material:RVGDLDN
Model:RVGD-LDN
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 RVGDLDN (RVGDLDN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This valve opens to the tank port when the inlet port pressure reaches the preset level, allowing flow regulation to maintain desired pressure levels. It features a vent port for remote control and a drain port that ensures insensitivity to back pressure. These valves are noted for their accuracy, low-pressure rise versus flow, smooth operation, and moderate speed. They can handle maximum pressures up to 5000 psi at port 2 and are suitable for cross-port relief circuits\u2014although not recommended for load-holding applications due to spool leakage. The main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve incorporates Sun's floating style construction to reduce internal binding risks from excessive installation torque or machining variations of cavity/cartridge interfaces. With a capacity of 60 gpm (240 L/min), this model operates at factory pressure settings established at 4 gpm (15 L/min). The control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 10 ms. Installation specifics include a hex size of 1\u00bc inches (31.8 mm) and an installation torque requirement between 150-160 lbf\u00b7ft (203-217 Nm). The adjustment screw uses an internal hex size of ^5\u204432 inches (4 mm), with the locknut requiring a torque of 80-90 lbf\u00b7in (9-10 Nm). The RVGDLDN model weighs approximately 1.60 lbs (0.70 kg) and utilizes Viton seal kits for reliable performance in various hydraulic systems where precise pressure regulation is essential.

Description

Ventable, pilot-operated, balanced piston relief cartridges with external drain 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 and a drain (port 4) that makes them insensitive to back pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.

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.
Pressure at port 4 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
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-23A
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	10 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 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: 990-023-006

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 HYDRAULICSRVGDLDN

Additional Resources

SUN HYDRAULICS
RVGDLDN