SUN HYDRAULICS
SQFBMCV
$150.91 USD
- SUN HYDRAULICS
- Material:SQFBMCV
- Model:SQFB-MCV
- 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 SQFBMCV (SQFBMCV) is a kickdown sequence valve designed to facilitate an open flow path from port 1 to port 2 once the inlet pressure exceeds its set threshold. This valve is ideal for applications on the actuator side of hydraulic systems, as it requires cessation of flow for reset. It features a robust construction with a 150-micron stainless steel screen protecting the main stage orifice. The valve's pressure setting at port 1 is relative to drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). Notably, this valve should not be used in load-holding applications due to its design characteristics. It incorporates Sun's floating style construction, which minimizes internal binding risks due to installation torque or machining variations. The SQFBMCV has a capacity of 30 gpm (120 L/min) and operates with a typical response time of 25 ms. Its hex size is 1-1/8 inches (28.6 mm), and the installation torque ranges from 45 to 50 lbf-ft (61 to 68 Nm). Adjustment is achieved through clockwise turns, with five complete turns available for increasing settings. The valve's leak rate at standard conditions is minimal at just 3 in\u00b3/min (50 cc/min). Additionally, it comes with Viton seals as part of its cartridge seal kit option, ensuring compatibility with various hydraulic fluids and temperatures.
The Sun Hydraulics SQFBMCV (SQFBMCV) is a kickdown sequence valve designed to facilitate an open flow path from port 1 to port 2 once the inlet pressure exceeds its set threshold. This valve is ideal for applications on the actuator side of hydraulic systems, as it requires cessation of flow for reset. It features a robust construction with a 150-micron stainless steel screen protecting the main stage orifice. The valve's pressure setting at port 1 is relative to drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). Notably, this valve should not be used in load-holding applications due to its design characteristics. It incorporates Sun's floating style construction, which minimizes internal binding risks due to installation torque or machining variations. The SQFBMCV has a capacity of 30 gpm (120 L/min) and operates with a typical response time of 25 ms. Its hex size is 1-1/8 inches (28.6 mm), and the installation torque ranges from 45 to 50 lbf-ft (61 to 68 Nm). Adjustment is achieved through clockwise turns, with five complete turns available for increasing settings. The valve's leak rate at standard conditions is minimal at just 3 in\u00b3/min (50 cc/min). Additionally, it comes with Viton seals as part of its cartridge seal kit option, ensuring compatibility with various hydraulic fluids and temperatures.
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.