SUN HYDRAULICS
RSFCWPN
$115.50 USD
- SUN HYDRAULICS
- Material:RSFCWPN
- Model:RSFC-WPN
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 RSFCWPN (RSFCWPN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port pressure exceeds the valve setting. This valve is engineered to control the pressure at port 1 relative to the pressure at drain port 3 and remains unaffected by back pressure at port 2 up to its set point. It can be utilized as an alternative to 2-port relief valves in systems where there is return line pressure. The RSFCWPN model features interchangeable three-port sequence cartridges that maintain consistent flow paths and cavity dimensions for a given frame size. As inlet pressure rises above the set threshold, pilot flow continues to increase, while the main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve's design ensures that pressure at port 3 adds directly to the valve setting at a 1:1 ratio, with a maximum allowable pressure of 5000 psi (350 bar). Due to spool leakage, this model is not recommended for load-holding applications. The RSFCWPN can be adjusted using W or Y controls and may include special settings that represent maximum adjustments if specified. It incorporates Sun's floating style construction, which minimizes internal binding risks from excessive torque or machining variations. With a capacity of 30 gpm (120 L/min) and factory settings established at 4 gpm (15 L/min), this valve operates effectively under maximum pressures of up to 5000 psi (350 bar). It has a typical response time of around 10 ms and exhibits minimal leakage under standard conditions. The RSFCWPN comes with configurations suitable for systems using phosphate ester fluids when equipped with EPDM seals, although exposure to petroleum-based substances should be avoided due to potential seal damage.
The Sun Hydraulics RSFCWPN (RSFCWPN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port pressure exceeds the valve setting. This valve is engineered to control the pressure at port 1 relative to the pressure at drain port 3 and remains unaffected by back pressure at port 2 up to its set point. It can be utilized as an alternative to 2-port relief valves in systems where there is return line pressure. The RSFCWPN model features interchangeable three-port sequence cartridges that maintain consistent flow paths and cavity dimensions for a given frame size. As inlet pressure rises above the set threshold, pilot flow continues to increase, while the main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve's design ensures that pressure at port 3 adds directly to the valve setting at a 1:1 ratio, with a maximum allowable pressure of 5000 psi (350 bar). Due to spool leakage, this model is not recommended for load-holding applications. The RSFCWPN can be adjusted using W or Y controls and may include special settings that represent maximum adjustments if specified. It incorporates Sun's floating style construction, which minimizes internal binding risks from excessive torque or machining variations. With a capacity of 30 gpm (120 L/min) and factory settings established at 4 gpm (15 L/min), this valve operates effectively under maximum pressures of up to 5000 psi (350 bar). It has a typical response time of around 10 ms and exhibits minimal leakage under standard conditions. The RSFCWPN comes with configurations suitable for systems using phosphate ester fluids when equipped with EPDM seals, although exposure to petroleum-based substances should be avoided due to potential seal damage.
Pilot-operated, balanced piston sequence valves will supply a secondary circuit with flow once the pressure at the inlet (port 1) has exceeded the valve setting. The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.
- All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
- Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
- The main stage orifice is protected by a 150 micron stainless steel screen.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Not suitable for use in load holding applications due to spool leakage.
- 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.
- 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 | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-202-006 |
Show FAQ
Additional Resources
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- Sun Expands Corrosion-Resistant Solutions
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Sequence Valves Technical Tips
- Manufacturing Sun Cartridge Cavities
- Sequence Valves
- Sun Model Code Explanation; 999-901-334
- Cavity Information (S-171) and Tooling
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
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.
