SUN HYDRAULICS
RSFSLAN
$121.12 USD
- SUN HYDRAULICS
- Material:RSFSLAN
- Model:RSFS-LAN
- 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 RSFSLAN (RSFSLAN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. This sequence valve controls the pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can replace 2-port relief valves in systems with return line pressure and is suitable for load-holding applications. Its design includes a 150-micron stainless steel screen protecting the main stage orifice and features Sun's floating style construction to minimize internal part binding. The RSFSLAN is compatible with cross-port relief circuits and can handle maximum pressure at port 2. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), it offers quick response times around 10 ms. This model supports up to ten drops per minute leakage at reseat and includes an adjustable setting mechanism with five clockwise turns available for increased settings. For installation, it requires a torque of 45 - 50 lbf ft (61 - 68 Nm), while its adjustment screw has an internal hex size of 5/32 in (4 mm). The locknut requires a torque of 80 - 90 lbf in (9 - 10 Nm). Weighing approximately .50 lb (.25 kg), this cartridge valve uses Viton seals, specifically seal kit number: 990402006, ensuring durability and reliability in various hydraulic applications.
The Sun Hydraulics RSFSLAN (RSFSLAN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. This sequence valve controls the pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can replace 2-port relief valves in systems with return line pressure and is suitable for load-holding applications. Its design includes a 150-micron stainless steel screen protecting the main stage orifice and features Sun's floating style construction to minimize internal part binding. The RSFSLAN is compatible with cross-port relief circuits and can handle maximum pressure at port 2. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), it offers quick response times around 10 ms. This model supports up to ten drops per minute leakage at reseat and includes an adjustable setting mechanism with five clockwise turns available for increased settings. For installation, it requires a torque of 45 - 50 lbf ft (61 - 68 Nm), while its adjustment screw has an internal hex size of 5/32 in (4 mm). The locknut requires a torque of 80 - 90 lbf in (9 - 10 Nm). Weighing approximately .50 lb (.25 kg), this cartridge valve uses Viton seals, specifically seal kit number: 990402006, ensuring durability and reliability in various hydraulic applications.
Pilot-operated, balanced poppet 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).
- Suitable for use in load holding applications.
- Because the modulating occurs inside the cartridge these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- 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 |
| Response Time - Typical | 10 ms10 ms |
| Maximum Valve Leakage at Reseat | 10 drops/min.0,7 cc/min. |
| 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: 990-402-006 |
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