SUN HYDRAULICS
RPESCCN

$86.27 USD

SUN HYDRAULICS
Material:RPESCCN
Model:RPES-CCN
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 RPESCCN (RPESCCN) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve activates when the inlet port pressure reaches a predetermined setting, allowing it to open to the tank port and throttle flow to maintain consistent pressure levels. Known for its accuracy, smooth operation, and minimal noise, this valve is particularly effective in preventing cavitation-related issues such as noise and manifold erosion. It can withstand maximum pressure at port 2, making it suitable for cross-port relief circuits and load-holding applications. The RPESCCN valve is engineered to be relatively insensitive to variations in oil temperature and contamination. Its main stage orifice is safeguarded by a 150-micron stainless steel screen, enhancing its durability and reliability. The design incorporates Sun's floating style construction to prevent internal component binding due to installation torque or machining variances. Back pressure on the tank port directly affects the valve setting at a 1:1 ratio. This model features an adjustable range using W or Y controls with options for special settings that define the maximum valve setting. The RPESCCN can handle a capacity of 25 gpm (95 L/min) with a maximum operating pressure of 5000 psi (350 bar). Typical response time is around 7 ms, with minimal leakage rates under specified conditions. Installation requires specific torque settings for optimal performance, ensuring secure fitment without compromising functionality. The cartridge also includes Viton seals for enhanced sealing capability under various conditions. Overall, the Sun Hydraulics RPESCCN valve offers robust performance in demanding hydraulic applications requiring reliable pressure control and regulation.

Description

Pilot-operated, balanced-poppet 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. These valves are accurate, smooth, quiet, fast, and have low pressure rise vs. flow.

Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
Main stage orifice is protected by a 150 micron stainless steel screen.
Suitable for use in load holding applications.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
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-10A
Series	1
Capacity	25 gpm95 L/min.
Factory Pressure Settings Established at	4 gpm15 L/min.
Maximum Operating Pressure	5000 psi350 bar
Response Time - Typical	7 ms7 ms
Maximum Valve Leakage at 110 SUS (24 cSt)	10 drops/min.0,7 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting	55
Valve Hex Size	7/8 in.22,2 mm
Valve Installation Torque	30 - 35 lbf ft41 - 47 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	.30 lb0,15 kg
Seal kit - Cartridge	Viton: 990-310-006

Show FAQ

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.
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.

SUN HYDRAULICSRPESCCN

Additional Resources

SUN HYDRAULICS
RPESCCN