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SUN HYDRAULICS
SQBBLBV


$82.70 USD
  • SUN HYDRAULICS
  • Material:SQBBLBV
  • Model:SQBB-LBV
  • Summary:Cartridge

Quantity in stock: 0

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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 SQBBLBV (SQBBLBV) is a kickdown sequence valve designed to maintain an unrestricted flow path from port 1 to port 2 once the inlet pressure exceeds the valve's set pressure. This valve is specifically engineered for applications where it will remain open as long as the pressure at port 1 is higher than at port 2. It resets only when the inlet pressure drops below the set point and flow ceases, making it suitable for use on the actuator side of hydraulic systems rather than load holding applications. The valve features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7.5 gpm (30 L/min). It incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. The valve is interchangeable with other three-port sequence cartridges within its frame size, sharing a common flow path and cavity design. It has a typical response time of 25 ms and minimal leakage rates, ensuring efficient operation. The adjustment mechanism allows for setting changes through clockwise turns, with specific torque requirements for installation and locknut adjustments. The SQBBLBV model weighs approximately 0.30 lb (0.15 kg) and comes with a Viton seal kit option for enhanced compatibility with various hydraulic fluids.

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.

  • Should not be used in load holding applications.
  • 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.
  • All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
  • 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-163A
Series0
Capacity7.5 gpm30 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)2 in³/min.30 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting55
Valve Hex Size3/4 in.19,1 mm
Valve Installation Torque20 - 25 lbf ft27 - 33 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.30 lb0,15 kg
Seal kit - CartridgeViton: 990-163-006

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