Model: RVCN
FLeX Series 2-stage, solenoid-operated adjustable relief valve, normally blocked
Cavity: T-10A | Capacity:
Technical specifications
This FLeX Series solenoid-operated, 2-stage, balanced relief cartridge is a pressure regulating valve. The valve is normally blocked. De-energized, the valve blocks the flow path from inlet (port 1) to tank (port 2) similar to a spool-type directional valve. Energizing the solenoid activates the relief function. In relief mode, the valve opens to tank (port 2), throttling flow to regulate the pressure when the pressure at the inlet (port 1) reaches the valve setting. The setting is adjustable with an adjust screw.
- 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.
- Designed and tested to 10-million operational cycles at full-rated pressure.
- Exceeds new NFPA test standard T2.6.1 R2014 for fatigue and burst pressure ratings.
- Higher flow rates than competing valves of similar size.
- All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
- This cartridge utilizes both 740 Series high-power and 747 Series hazardous location coils.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- Main stage orifice is protected by a 150-micron stainless steel screen.
- Will accept maximum pressure at port 2.
- All configurations of this valve are assembled with a non-removable adjust screw.
- FLeX Series relief valves are fully compatible with the XMD Expandable Mobile Drivers from Sun.
- A FULL DATA SHEET is available for this model using the link at the top of the page.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- 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
- Series
- Capacity25 gpm
- Maximum Operating Pressure5000 psi
- Factory Pressure Settings Established at4 gpm
- Maximum Valve Leakage at 110 SUS (24 cSt)5 in³/min.@3000 psi
- Response Time - Typical50 ms
- Response Time - Typical (Relief)10 ms
- Adjustment - No. of CW Turns from Min. to Max. setting3.5
- Valve Hex Size7/8 in.
- Valve Installation Torque30 - 35 lbf ft
- Adjustment Screw Internal Hex Size1/8 in.
- Locknut Hex Size7/16 in.
- Locknut Torque45 - 55 lbf in.
- Model Weight.40 lb
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
- U.S. Patent #10,774,853
What parts of the Sun cartridge valve are field serviceable?
What is the difference between nominal and maximum flow capacity?
Do FLeX valves utilize a floating nose design?
Is the FLeX program available in QuickDesign SmartConnect?
What are the tolerances on pressure settings for Sun's pressure control valves?
Where would I use a kick-down relief?
Can I use a kick-down relief for my system relief?
How big is a drop of hydraulic oil?
Direct acting or pilot operated - what do I use?
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