SUN HYDRAULICS
RVCAKDN

$93.50 USD

Tags:

SUN HYDRAULICS
Material:RVCAKDN
Model:RVCA-KDN
Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.

***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 RVCAKDN (RVCAKDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet port 1 pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. Featuring a vent port 3, it allows for remote control via other pilot or two-way valves. The RVCAKDN is known for its accuracy, low pressure rise versus flow characteristics, and smooth operation, making it a reliable choice in various applications. It can handle maximum pressure at port 2 and is suitable for cross-port relief circuits; however, users should consider spool leakage in these scenarios. The main stage orifice is safeguarded by a 150-micron stainless steel screen. This valve is not recommended for load-holding applications due to potential spool leakage. Additionally, backpressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluids but can be damaged by petroleum-based substances. The RVCAKDN incorporates Sun's floating style construction to reduce internal binding risks from excessive installation torque or machining variations. Key specifications include a cavity type T-11A with Series 1 capacity of up to 15 gpm (60 L/min), maximum operating pressure of 5000 psi (350 bar), and control pilot flow between 7-10 in\u00b3/min (0.11-0.16 L/min). The typical response time is around 10 ms with maximum valve leakage at specified conditions being approximately 2 in\u00b3/min (30 cc/min). Adjustments are made via an internal hex screw requiring specific torque settings for secure installation and operation stability. With a weight of .40 lb (.20 kg), this cartridge also offers optional Viton seal kits for enhanced compatibility and performance in specialized fluid systems.

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-11A
Series	1
Capacity	15 gpm60 L/min.
Factory Pressure Settings Established at	4 gpm15 L/min.
Maximum Operating Pressure	5000 psi350 bar
Control Pilot Flow	7 - 10 in³/min.0,11 - 0,16 L/min.
Response Time - Typical	10 ms10 ms
Maximum Valve Leakage at 110 SUS (24 cSt)	2 in³/min.@1000 psi30 cc/min.@70 bar
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	.40 lb0,20 kg
Seal kit - Cartridge	Viton: 990-011-006

Show FAQ

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 HYDRAULICSRVCAKDN

Additional Resources

SUN HYDRAULICS
RVCAKDN