SUN HYDRAULICS
XQGELANBY
$754.30 USD
Tags:
- SUN HYDRAULICS
- Material:XQGELANBY
- Model:XQGE-LAN-BY
- Summary:Y-assembly
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 XQGELANBY (XQGELANBY) is a sophisticated valve assembly designed for efficiently managing the charging of an accumulator using a fixed displacement pump. This assembly operates by unloading the pump when the system pressure reaches a predetermined set point and re-engaging it when pressure drops to a specific value, ensuring optimal energy usage and system efficiency. The ventable relief valve within the assembly serves dual purposes: it acts as a main stage to unload the pump and as an overpressure relief mechanism for the system. A key requirement when implementing this assembly is the inclusion of a separate drain line, which prevents erratic operation due to fluctuations in tank line pressure. When selecting this valve, users should carefully consider adjustment ranges, as low operating pressures combined with narrow differentials can necessitate precise system design. High flow rates can result in significant pressure drops, affecting operation. The design features large porting relative to capacity, encouraging use of large piping to minimize flow-induced pressure issues. The pilot valve's spool design maintains a fixed differential ratio, ensuring consistent performance without wear-related changes. The accumulator pilot valve must be set below any pump-side reliefs to prevent overheating. Additionally, the relief component functions as an overpressure device set higher than the pilot valve's maximum setting and is capped for safety. Capable of handling up to 40 gpm (160 L/min), this line-mount body type valve assembly is built with robust considerations for hydraulic systems requiring precise control over accumulator charging cycles while maintaining system protection through reliable overpressure management.
The Sun Hydraulics XQGELANBY (XQGELANBY) is a sophisticated valve assembly designed for efficiently managing the charging of an accumulator using a fixed displacement pump. This assembly operates by unloading the pump when the system pressure reaches a predetermined set point and re-engaging it when pressure drops to a specific value, ensuring optimal energy usage and system efficiency. The ventable relief valve within the assembly serves dual purposes: it acts as a main stage to unload the pump and as an overpressure relief mechanism for the system. A key requirement when implementing this assembly is the inclusion of a separate drain line, which prevents erratic operation due to fluctuations in tank line pressure. When selecting this valve, users should carefully consider adjustment ranges, as low operating pressures combined with narrow differentials can necessitate precise system design. High flow rates can result in significant pressure drops, affecting operation. The design features large porting relative to capacity, encouraging use of large piping to minimize flow-induced pressure issues. The pilot valve's spool design maintains a fixed differential ratio, ensuring consistent performance without wear-related changes. The accumulator pilot valve must be set below any pump-side reliefs to prevent overheating. Additionally, the relief component functions as an overpressure device set higher than the pilot valve's maximum setting and is capped for safety. Capable of handling up to 40 gpm (160 L/min), this line-mount body type valve assembly is built with robust considerations for hydraulic systems requiring precise control over accumulator charging cycles while maintaining system protection through reliable overpressure management.
This valve assembly is meant to charge an accumulator using a fixed displacement pump. When the pressure reaches the set point of the valve, the pump is unloaded. When the pressure drops to the value determined by the fixed percentage of the pilot valve, the pump is brought back on line to recharge the accumulator. The ventable relief serves a dual purpose as a main stage to unload the pump and as a system over-pressure relief.
- When applying this assembly, a separate drain line is required to prevent erratic operation caused by tank line pressure fluctuations.
- NOTE: Careful consideration should be given when selecting an adjustment range. System pressure drops and flows tend to affect the operation of unloading valves. Low operating pressures combined with low differentials result in a very narrow band between unload and reset, requiring precise system design. High flow rates typically mean high pressure drops, which subtract from the differential the valve has to work with.
- The pressure setting and the resultant reseat pressure are in reference to the port 1 area of the QPA* pilot valve. Pump pressure will be higher and accumulator pressure will be lower due to pressure drop caused by flow.
- The porting on this assembly is large in relation to its capacity. This is done to encourage the use of correspondingly large piping to minimize problems caused by flow induced pressure drop.
- The spool design of the pilot valve allows it to maintain a fixed differential ratio because the areas are created by diameters on the spool that will not wear or change with use.
- The accumulator pilot valve must be set below any reliefs in the pump side of the system or severe heating could occur.
- The relief in this package is meant to be an over-pressure device. It is set higher than the highest setting of the pilot valve and capped.
| Capacity | 40 gpm160 L/min. |
| Body Type | Line mountLine mount |
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Additional Resources
- Integrated Packages: Solutions That Grow Your Reputation
- Fluid and Temperature Recommendations
- Sun's Floating Style Screw-In Cartridge
- Sun Model Code Explanation; 999-901-334
- Custom Integrated Packages from Sun
Notes:
- Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.