SUN HYDRAULICS
SQFBODN
$153.88 USD
- SUN HYDRAULICS
- Material:SQFBODN
- Model:SQFB-ODN
- 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 SQFBODN (SQFBODN) is a high-performance kickdown sequence valve designed to provide an unrestricted flow path from port 1 to port 2 once the pressure at the inlet port exceeds the valve setting. This valve remains open as long as the pressure at port 1 is greater than at port 2, making it suitable for applications where continuous flow is necessary until conditions change. It features a robust design with a main stage orifice protected by a 150-micron stainless steel screen, ensuring durability and reliability under demanding conditions. The valve's pressure setting is directly influenced by the drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). Notably, this model should not be used in load-holding applications and is best utilized on the actuator side of hydraulic systems. The SQFBODN incorporates Sun\u2019s floating style construction to minimize potential binding of internal components due to installation torque variations or machining discrepancies. With a factory-established response time of approximately 25 milliseconds and minimal leakage at high viscosity levels, this sequence valve delivers efficient performance. It supports a capacity of up to 30 gpm (120 L/min) and features adjustable settings with up to five clockwise turns for increased pressure settings. The valve's compact design includes specific installation requirements such as a hex size of 1-1/8 inches and an installation torque ranging between 45-50 lbf ft (61-68 Nm). Additionally, it comes with Viton seals for enhanced compatibility with various hydraulic fluids. The SQFBODN is ideal for systems where precise control over sequence operations is required without compromising on reliability or performance efficiency.
The Sun Hydraulics SQFBODN (SQFBODN) is a high-performance kickdown sequence valve designed to provide an unrestricted flow path from port 1 to port 2 once the pressure at the inlet port exceeds the valve setting. This valve remains open as long as the pressure at port 1 is greater than at port 2, making it suitable for applications where continuous flow is necessary until conditions change. It features a robust design with a main stage orifice protected by a 150-micron stainless steel screen, ensuring durability and reliability under demanding conditions. The valve's pressure setting is directly influenced by the drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). Notably, this model should not be used in load-holding applications and is best utilized on the actuator side of hydraulic systems. The SQFBODN incorporates Sun\u2019s floating style construction to minimize potential binding of internal components due to installation torque variations or machining discrepancies. With a factory-established response time of approximately 25 milliseconds and minimal leakage at high viscosity levels, this sequence valve delivers efficient performance. It supports a capacity of up to 30 gpm (120 L/min) and features adjustable settings with up to five clockwise turns for increased pressure settings. The valve's compact design includes specific installation requirements such as a hex size of 1-1/8 inches and an installation torque ranging between 45-50 lbf ft (61-68 Nm). Additionally, it comes with Viton seals for enhanced compatibility with various hydraulic fluids. The SQFBODN is ideal for systems where precise control over sequence operations is required without compromising on reliability or performance efficiency.
Kick-down sequence valves will kick completely open and remain open once the pressure at the inlet (port 1) exceeds the valve setting, creating an unrestricted flow path from port 1 to port 2 (sequence). The pressure setting at port 1 is relative to the drain (port 3). The valve remains open as long as the pressure at port 1 exceeds the pressure at port 2. To reset the valve, pressure at port 1 must fall below the setting of the valve, flow from port 1 to port 2 must cease, and pressure at port 2 must be equal to or greater than the pressure at port 1.
- All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
- Should not be used in load holding applications.
- 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).
- Intended for use on the actuator side of the system as flow through the valve must cease for the valve to reset. If used on the pump side of a system, pump flow must be shut off for the valve to reset.
- 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 | Kick down pointKick down point |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 25 ms25 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 3 in³/min.50 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: 990-202-006 |
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Additional Resources
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- 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.