SUN HYDRAULICS
RSFSCQN
$131.05 USD
- SUN HYDRAULICS
- Material:RSFSCQN
- Model:RSFS-CQN
- 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 RSFSCQN (RSFSCQN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 surpasses the valve setting. This valve 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, making it suitable for load-holding applications. It can replace two-port relief valves when there is return line pressure. The RSFSCQN's main stage orifice is shielded by a 150-micron stainless steel screen, ensuring durability and efficiency. It supports maximum pressures up to 5000 psi (350 bar) and features Sun's floating style construction, minimizing internal binding risks due to installation torque or machining variations. The sequence cartridges are interchangeable across similar frame sizes, maintaining consistent flow paths and cavity dimensions. As the inlet pressure at port 1 increases relative to drain port 3 beyond the valve setting, pilot flow also rises. The RSFSCQN accepts maximum pressure at port 2, making it ideal for cross-port relief circuits. It boasts a response time of approximately 10 ms, with maximum valve leakage upon reseat limited to 10 drops/min (0.7 cc/min). The factory establishes pressure settings at a flow rate of 4 gpm (15 L/min), with an operational capacity of up to 30 gpm (120 L/min). The RSFSCQN incorporates adjustment features such as clockwise turns for setting increases and specific hex sizes for adjustment screws and locknuts, ensuring precise control over its operation. With its robust construction and versatile application potential, this sequence valve is engineered for reliable performance in demanding hydraulic systems.
The Sun Hydraulics RSFSCQN (RSFSCQN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 surpasses the valve setting. This valve 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, making it suitable for load-holding applications. It can replace two-port relief valves when there is return line pressure. The RSFSCQN's main stage orifice is shielded by a 150-micron stainless steel screen, ensuring durability and efficiency. It supports maximum pressures up to 5000 psi (350 bar) and features Sun's floating style construction, minimizing internal binding risks due to installation torque or machining variations. The sequence cartridges are interchangeable across similar frame sizes, maintaining consistent flow paths and cavity dimensions. As the inlet pressure at port 1 increases relative to drain port 3 beyond the valve setting, pilot flow also rises. The RSFSCQN accepts maximum pressure at port 2, making it ideal for cross-port relief circuits. It boasts a response time of approximately 10 ms, with maximum valve leakage upon reseat limited to 10 drops/min (0.7 cc/min). The factory establishes pressure settings at a flow rate of 4 gpm (15 L/min), with an operational capacity of up to 30 gpm (120 L/min). The RSFSCQN incorporates adjustment features such as clockwise turns for setting increases and specific hex sizes for adjustment screws and locknuts, ensuring precise control over its operation. With its robust construction and versatile application potential, this sequence valve is engineered for reliable performance in demanding hydraulic systems.
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 |
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