SUN HYDRAULICS
SEQUENCE CART
RSFCFAN
- SUN HYDRAULICS
- Material:RSFCFAN
- Model:RSFC-FAN
- 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 RSFCFAN (RSFCFAN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. It effectively manages pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to the valve setting. This makes it suitable for regulating pressure instead of using 2-port relief valves when there's pressure in the return line. The RSFCFAN is interchangeable with all 3-port sequence cartridges, sharing the same flow path and cavity for a given frame size. The valve features a protected main stage orifice with a 150-micron stainless steel screen and can handle pressures up to 5000 psi (350 bar). However, it's not recommended for load-holding applications due to spool leakage. The RSFCFAN incorporates Sun's floating style construction, reducing internal part binding risks from excessive installation torque or cavity machining variations. It supports adjustable settings using W and Y controls, with options for special settings that define maximum valve settings. The cartridge can be configured with EPDM seals for phosphate ester fluid systems but should avoid petroleum-based fluids that could damage the seals. With a capacity of 30 gpm (120 L/min) and factory pressure settings established at 4 gpm (15 L/min), it delivers a typical response time of about 10 ms. The maximum operating pressure is set at 5000 psi (350 bar), and control pilot flow ranges between 10-15 in\u00b3/min (0.16-0.25 L/min). Installation requires specific torque values, including a valve installation torque of 45-50 lbf\u00b7ft (61-68 Nm) and locknut torque of 80-90 lbf\u00b7in (9-10 Nm).
The Sun Hydraulics RSFCFAN (RSFCFAN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. It effectively manages pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to the valve setting. This makes it suitable for regulating pressure instead of using 2-port relief valves when there's pressure in the return line. The RSFCFAN is interchangeable with all 3-port sequence cartridges, sharing the same flow path and cavity for a given frame size. The valve features a protected main stage orifice with a 150-micron stainless steel screen and can handle pressures up to 5000 psi (350 bar). However, it's not recommended for load-holding applications due to spool leakage. The RSFCFAN incorporates Sun's floating style construction, reducing internal part binding risks from excessive installation torque or cavity machining variations. It supports adjustable settings using W and Y controls, with options for special settings that define maximum valve settings. The cartridge can be configured with EPDM seals for phosphate ester fluid systems but should avoid petroleum-based fluids that could damage the seals. With a capacity of 30 gpm (120 L/min) and factory pressure settings established at 4 gpm (15 L/min), it delivers a typical response time of about 10 ms. The maximum operating pressure is set at 5000 psi (350 bar), and control pilot flow ranges between 10-15 in\u00b3/min (0.16-0.25 L/min). Installation requires specific torque values, including a valve installation torque of 45-50 lbf\u00b7ft (61-68 Nm) and locknut torque of 80-90 lbf\u00b7in (9-10 Nm).
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
- Sequence Valves Technical Tips
- 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
- Manufacturing Sun Cartridge Cavities
- Sequence Valves
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
- Sun Model Code Explanation; 999-901-334
- Cavity Information (S-171) and Tooling
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
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.
