SUN HYDRAULICS
SQJBCBV
$561.82 USD
- SUN HYDRAULICS
- Material:SQJBCBV
- Model:SQJB-CBV
- 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 SQJBCBV (SQJBCBV) is a robust kickdown sequence valve designed to facilitate efficient hydraulic flow control. This valve automatically opens completely and maintains an open state when the pressure at inlet port 1 surpasses the preset threshold, thereby allowing unrestricted flow from port 1 to port 2. The valve setting is directly influenced by the pressure at drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). It remains open as long as the pressure at port 1 exceeds that of port 2. Resetting occurs when the pressure at port 1 drops below the valve setting, flow ceases, and pressure at port 2 matches or exceeds that at port 1. This model is part of a series where all three-port sequence cartridges are interchangeable in terms of flow path and cavity size for their frame. It is not suitable for load-holding applications due to its specific operational characteristics. The main stage orifice is safeguarded by a durable 150-micron stainless steel screen, ensuring longevity and reliability. It features Sun's floating style construction, which minimizes internal binding risks due to installation torque or machining variations. Designed primarily for actuator-side applications within hydraulic systems, it requires cessation of flow for resetting; if used on the pump side, the pump must be turned off for reset functionality. The valve supports a high capacity of up to 120 gpm (480 L/min) under maximum operating pressures and exhibits minimal leakage rates under standard conditions. Installation requires specific torque settings with detailed specifications provided for adjustment screw and locknut sizes. Additionally, it includes a Viton seal kit for enhanced sealing performance in various conditions.
The Sun Hydraulics SQJBCBV (SQJBCBV) is a robust kickdown sequence valve designed to facilitate efficient hydraulic flow control. This valve automatically opens completely and maintains an open state when the pressure at inlet port 1 surpasses the preset threshold, thereby allowing unrestricted flow from port 1 to port 2. The valve setting is directly influenced by the pressure at drain port 3, with a maximum allowable pressure of 5000 psi (350 bar). It remains open as long as the pressure at port 1 exceeds that of port 2. Resetting occurs when the pressure at port 1 drops below the valve setting, flow ceases, and pressure at port 2 matches or exceeds that at port 1. This model is part of a series where all three-port sequence cartridges are interchangeable in terms of flow path and cavity size for their frame. It is not suitable for load-holding applications due to its specific operational characteristics. The main stage orifice is safeguarded by a durable 150-micron stainless steel screen, ensuring longevity and reliability. It features Sun's floating style construction, which minimizes internal binding risks due to installation torque or machining variations. Designed primarily for actuator-side applications within hydraulic systems, it requires cessation of flow for resetting; if used on the pump side, the pump must be turned off for reset functionality. The valve supports a high capacity of up to 120 gpm (480 L/min) under maximum operating pressures and exhibits minimal leakage rates under standard conditions. Installation requires specific torque settings with detailed specifications provided for adjustment screw and locknut sizes. Additionally, it includes a Viton seal kit for enhanced sealing performance in various conditions.
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-19A |
| Series | 4 |
| Capacity | 120 gpm480 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) | 5 in³/min.80 cc/min. |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 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 | 3.10 lb1,40 kg |
| Seal kit - Cartridge | Viton: 990-019-006 |
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