SUN HYDRAULICS
SQHBQEV
$292.98 USD
- SUN HYDRAULICS
- Material:SQHBQEV
- Model:SQHB-QEV
- 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 SQHBQEV (SQHBQEV) is a sophisticated kickdown sequence valve designed to open fully and maintain an open state once the inlet port 1 pressure surpasses the preset valve setting, allowing for an unrestricted flow from port 1 to port 2. This valve is engineered with a critical pressure relationship between ports, where the pressure at port 1 must exceed that of port 2 for it to remain open. Resetting occurs when the pressure at port 1 drops below the valve's setting and flow ceases, with equal or greater pressure at port 2 compared to port 1. Notably, all three-port sequence cartridges are interchangeable in terms of flow path and cavity dimensions for a specific frame size. However, these valves should not be used in load-holding applications due to their design characteristics. The main stage orifice is safeguarded by a robust 150-micron stainless steel screen, ensuring durability and reliability under high-pressure conditions up to a maximum of 5000 psi (350 bar). The valve features Sun's floating style construction, minimizing internal component binding risks due to excessive installation torque or machining variations. It is intended for actuator-side applications where flow cessation through the valve allows for resetting; if utilized on the pump side, pump flow must be halted for reset. With a capacity of up to 60 gpm (240 L/min) and typical response times around 25 ms, this valve offers efficient performance in hydraulic systems. Its adjustment settings allow for fine-tuning with up to five clockwise turns to increase settings. The SQHBQEV also includes specific installation requirements such as a hex size of 1\u00bc inches and torque specifications ranging from 150-160 lbf ft (203-217 Nm). Additionally, it incorporates Viton seals with an available seal kit under part number 990017006.
The Sun Hydraulics SQHBQEV (SQHBQEV) is a sophisticated kickdown sequence valve designed to open fully and maintain an open state once the inlet port 1 pressure surpasses the preset valve setting, allowing for an unrestricted flow from port 1 to port 2. This valve is engineered with a critical pressure relationship between ports, where the pressure at port 1 must exceed that of port 2 for it to remain open. Resetting occurs when the pressure at port 1 drops below the valve's setting and flow ceases, with equal or greater pressure at port 2 compared to port 1. Notably, all three-port sequence cartridges are interchangeable in terms of flow path and cavity dimensions for a specific frame size. However, these valves should not be used in load-holding applications due to their design characteristics. The main stage orifice is safeguarded by a robust 150-micron stainless steel screen, ensuring durability and reliability under high-pressure conditions up to a maximum of 5000 psi (350 bar). The valve features Sun's floating style construction, minimizing internal component binding risks due to excessive installation torque or machining variations. It is intended for actuator-side applications where flow cessation through the valve allows for resetting; if utilized on the pump side, pump flow must be halted for reset. With a capacity of up to 60 gpm (240 L/min) and typical response times around 25 ms, this valve offers efficient performance in hydraulic systems. Its adjustment settings allow for fine-tuning with up to five clockwise turns to increase settings. The SQHBQEV also includes specific installation requirements such as a hex size of 1\u00bc inches and torque specifications ranging from 150-160 lbf ft (203-217 Nm). Additionally, it incorporates Viton seals with an available seal kit under part number 990017006.
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-17A |
| Series | 3 |
| Capacity | 60 gpm240 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) | 4 in³/min.65 cc/min. |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 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 | 1.50 lb0,70 kg |
| Seal kit - Cartridge | Viton: 990-017-006 |
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