SUN HYDRAULICS
RSFCQAN
$110.70 USD
- SUN HYDRAULICS
- Material:RSFCQAN
- Model:RSFC-QAN
- Summary:Cartridge
Quantity in stock: 0
***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 RSFCQAN (RSFCQAN) is a pilot-operated, balanced piston sequence valve designed to manage the flow to a secondary circuit once the inlet port 1 pressure surpasses the valve setting. This valve precisely controls the pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to its set point. It can substitute for 2-port relief valves when there is return line pressure. Notably, all three-port sequence cartridges are interchangeable in terms of flow path and cavity size within a specific frame size. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. The RSFCQAN valve's design allows pilot flow to increase as inlet pressure rises above the set point relative to the drain pressure. However, it is not recommended for load holding applications due to potential spool leakage. The valve features adjustable W and Y controls, which can be specified with or without a special setting. Without a special setting, adjustments can be made throughout its full range. Cartridges with EPDM seals are suitable for systems using phosphate ester fluids but should avoid petroleum-based substances. This model incorporates Sun's floating style construction, reducing risks of internal binding from excessive installation torque or machining discrepancies. The RSFCQAN has a capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). It features an adjustment range allowing up to five clockwise turns for increased settings and requires specific torque values for installation and adjustment components. The valve weighs approximately .50 lb (0.25 kg) and comes with options for Viton seal kits if needed.
The Sun Hydraulics RSFCQAN (RSFCQAN) is a pilot-operated, balanced piston sequence valve designed to manage the flow to a secondary circuit once the inlet port 1 pressure surpasses the valve setting. This valve precisely controls the pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to its set point. It can substitute for 2-port relief valves when there is return line pressure. Notably, all three-port sequence cartridges are interchangeable in terms of flow path and cavity size within a specific frame size. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. The RSFCQAN valve's design allows pilot flow to increase as inlet pressure rises above the set point relative to the drain pressure. However, it is not recommended for load holding applications due to potential spool leakage. The valve features adjustable W and Y controls, which can be specified with or without a special setting. Without a special setting, adjustments can be made throughout its full range. Cartridges with EPDM seals are suitable for systems using phosphate ester fluids but should avoid petroleum-based substances. This model incorporates Sun's floating style construction, reducing risks of internal binding from excessive installation torque or machining discrepancies. The RSFCQAN has a capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). It features an adjustment range allowing up to five clockwise turns for increased settings and requires specific torque values for installation and adjustment components. The valve weighs approximately .50 lb (0.25 kg) and comes with options for Viton seal kits if needed.
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.