SUN HYDRAULICS
SQFBJAN
$134.03 USD
- SUN HYDRAULICS
- Material:SQFBJAN
- Model:SQFB-JAN
- 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 SQFBJAN (SQFBJAN) is a sophisticated kickdown sequence valve engineered for hydraulic systems, specifically designed to manage flow and pressure effectively. This valve activates by fully opening when the inlet port 1 pressure surpasses the preset valve setting, enabling an unimpeded flow from port 1 to port 2. The operation of this valve is contingent upon maintaining a higher pressure at port 1 compared to port 2, with the valve resetting only when flow ceases and pressures equalize or reverse. Notably, this model should not be utilized in load-holding applications due to its operational characteristics. The SQFBJAN is equipped with a main stage orifice shielded by a durable 150-micron stainless steel screen, ensuring reliability and longevity even under challenging conditions. It supports a maximum operating pressure of 5000 psi (350 bar) and offers a capacity of up to 30 gpm (120 L/min), making it suitable for demanding hydraulic applications. The response time is typically around 25 milliseconds, reflecting its efficiency in dynamic environments. This sequence valve incorporates Sun's floating style construction, reducing the risk of internal component binding caused by excessive installation torque or machining variations in cavity/cartridge interfaces. Its design allows for physical and functional interchangeability with other three-port sequence cartridges within the same frame size, enhancing versatility across different system configurations. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque range between 45 to 50 lbf ft (61 to 68 Nm). The adjustment mechanism features an internal hex size of 5/32 inches (4 mm), complemented by a locknut hex size of 9/16 inches (15 mm) requiring torque between 80 to 90 lbf in (9 to 10 Nm). The product weighs approximately .50 lb (.25 kg) and utilizes Viton seals for reliable performance across various hydraulic environments.
The Sun Hydraulics SQFBJAN (SQFBJAN) is a sophisticated kickdown sequence valve engineered for hydraulic systems, specifically designed to manage flow and pressure effectively. This valve activates by fully opening when the inlet port 1 pressure surpasses the preset valve setting, enabling an unimpeded flow from port 1 to port 2. The operation of this valve is contingent upon maintaining a higher pressure at port 1 compared to port 2, with the valve resetting only when flow ceases and pressures equalize or reverse. Notably, this model should not be utilized in load-holding applications due to its operational characteristics. The SQFBJAN is equipped with a main stage orifice shielded by a durable 150-micron stainless steel screen, ensuring reliability and longevity even under challenging conditions. It supports a maximum operating pressure of 5000 psi (350 bar) and offers a capacity of up to 30 gpm (120 L/min), making it suitable for demanding hydraulic applications. The response time is typically around 25 milliseconds, reflecting its efficiency in dynamic environments. This sequence valve incorporates Sun's floating style construction, reducing the risk of internal component binding caused by excessive installation torque or machining variations in cavity/cartridge interfaces. Its design allows for physical and functional interchangeability with other three-port sequence cartridges within the same frame size, enhancing versatility across different system configurations. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque range between 45 to 50 lbf ft (61 to 68 Nm). The adjustment mechanism features an internal hex size of 5/32 inches (4 mm), complemented by a locknut hex size of 9/16 inches (15 mm) requiring torque between 80 to 90 lbf in (9 to 10 Nm). The product weighs approximately .50 lb (.25 kg) and utilizes Viton seals for reliable performance across various hydraulic environments.
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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- Sequence Valves Technical Tips
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- 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.