SUN HYDRAULICS
RVEAMRN

$117.35 USD

SUN HYDRAULICS
Material:RVEAMRN
Model:RVEA-MRN
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 RVEAMRN (RVEAMRN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to tank port 2 when the inlet pressure at port 1 reaches the set threshold, effectively throttling flow to maintain desired pressure levels. The valve features a vent port (port 3) that facilitates remote control by other pilot or two-way valves, enhancing its versatility in various applications. Known for its accuracy and low-pressure rise versus flow characteristics, the RVEAMRN operates smoothly and quietly with moderate speed. This cartridge is suitable for cross-port relief circuits as it can handle maximum pressure at port 2; however, users should consider spool leakage when employing it in such configurations. It is not recommended for load-holding applications due to potential leakage issues. The main stage orifice is safeguarded by a durable 150-micron stainless steel screen, ensuring longevity and reliability. The valve's design incorporates Sun's floating style construction, minimizing risks of internal binding due to excessive installation torque or machining variations. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), this relief cartridge offers robust performance across diverse hydraulic systems. It features an adjustment mechanism that allows up to five clockwise turns to increase the setting, with specific torque requirements for installation and adjustment components. Notably, cartridges configured with EPDM seals are intended for use in systems utilizing phosphate ester fluids and should not be exposed to petroleum-based substances to prevent seal damage. The RVEAMRN model weighs .70 lb (.30 kg) and comes with an optional Viton seal kit (990202006).

Description

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.

Cavity	T-2A
Series	2
Capacity	30 gpm120 L/min.
Factory Pressure Settings Established at	4 gpm15 L/min.
Maximum Operating Pressure	5000 psi350 bar
Control Pilot Flow	10 - 15 in³/min.0,16 - 0,25 L/min.
Response Time - Typical	10 ms10 ms
Maximum Valve Leakage at 110 SUS (24 cSt)	3 in³/min.@1000 psi50 cc/min.@70 bar
Adjustment - Number of Clockwise Turns to Increase Setting	55
Valve Hex Size	1 1/8 in.28,6 mm
Valve Installation Torque	45 - 50 lbf ft61 - 68 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	.70 lb0,30 kg
Seal kit - Cartridge	Viton: 990-202-006

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Additional Resources

Notes:

For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.

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.
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.

SUN HYDRAULICSRVEAMRN

Additional Resources

SUN HYDRAULICS
RVEAMRN