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SUN HYDRAULICS
SQFBOEV


$161.82 USD
  • SUN HYDRAULICS
  • Material:SQFBOEV
  • Model:SQFB-OEV
  • Summary:Cartridge

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***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 SQFBOEV (SQFBOEV) is a kickdown sequence valve designed to provide an unrestricted flow path from port 1 to port 2 once the pressure at the inlet port exceeds a set threshold. This valve remains open as long as the inlet pressure is greater than the outlet pressure, making it suitable for applications where consistent flow needs to be maintained without interruption. The valve features a floating style construction to minimize internal binding and incorporates a 150-micron stainless steel screen protecting the main stage orifice. It is important to note that this valve should not be used in load-holding applications. The maximum operating pressure of this valve is 5000 psi (350 bar), and it has a capacity of 30 gpm (120 L/min). Resetting the valve requires that flow from port 1 to port 2 ceases, with equal or greater pressure at port 2 compared to port 1. The SQFBOEV is interchangeable with other three-port sequence cartridges of the same frame size, providing flexibility in various hydraulic systems. It is intended for use on the actuator side of systems, ensuring proper resetting conditions are met. The valve's installation torque ranges between 45-50 lbf ft (61-68 Nm), and it features an adjustment screw with an internal hex size of 5/32 in. (4 mm). Additionally, its locknut torque ranges from 80-90 lbf in. (9-10 Nm). The product's design includes considerations for easy maintenance and adaptability in different hydraulic setups, ensuring reliable performance across its specified applications.

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.

CavityT-2A
Series2
Capacity30 gpm120 L/min.
Factory Pressure Settings Established atKick down pointKick down point
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical25 ms25 ms
Maximum Valve Leakage at 110 SUS (24 cSt)3 in³/min.50 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size1 1/8 in.28,6 mm
Valve Installation Torque45 - 50 lbf ft61 - 68 Nm
Adjustment Screw Internal Hex Size5/32 in.4 mm
Locknut Hex Size9/16 in.15 mm
Locknut Torque80 - 90 lbf in.9 - 10 Nm
Model Weight.50 lb0,25 kg
Seal kit - CartridgeViton: 990-202-006

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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.