SUN HYDRAULICS
XQGELANAM
$767.50 USD
Tags:
- SUN HYDRAULICS
- Material:XQGELANAM
- Model:XQGE-LAN-AM
- 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 XQGELANAM (Material Number: XQGELANAM) is a sophisticated valve assembly designed to efficiently manage the charging of an accumulator using a fixed displacement pump. This system automatically unloads the pump when the pressure reaches a preset level and re-engages it once the pressure drops to a specified percentage, ensuring optimal accumulator recharge. The integrated ventable relief valve serves dual purposes: it acts as both the main stage for unloading the pump and as an overpressure relief mechanism for the system. For effective operation, this assembly requires a separate drain line to mitigate erratic behaviors caused by tank line pressure fluctuations. When implementing this valve assembly, careful selection of adjustment ranges is crucial, as system pressure drops and flow rates can significantly impact unloading valve performance. Low operating pressures with minimal differentials necessitate precise system design due to narrow reset bands, while high flow rates typically result in substantial pressure drops affecting differential calculations. The valve's porting is intentionally large relative to its capacity to encourage the use of equally large piping, minimizing issues related to flow-induced pressure drops. The pilot valve's spool design maintains a consistent differential ratio by utilizing spool diameters that resist wear over time. It's important that the accumulator pilot valve setting remains below any reliefs on the pump side to prevent excessive heating. Additionally, while this package includes an overpressure relief device set higher than any pilot valve settings and capped for safety, it should not be relied upon as a primary control measure but rather as an emergency safeguard within hydraulic systems operating at capacities up to 40 gpm (160 L/min).
The Sun Hydraulics XQGELANAM (Material Number: XQGELANAM) is a sophisticated valve assembly designed to efficiently manage the charging of an accumulator using a fixed displacement pump. This system automatically unloads the pump when the pressure reaches a preset level and re-engages it once the pressure drops to a specified percentage, ensuring optimal accumulator recharge. The integrated ventable relief valve serves dual purposes: it acts as both the main stage for unloading the pump and as an overpressure relief mechanism for the system. For effective operation, this assembly requires a separate drain line to mitigate erratic behaviors caused by tank line pressure fluctuations. When implementing this valve assembly, careful selection of adjustment ranges is crucial, as system pressure drops and flow rates can significantly impact unloading valve performance. Low operating pressures with minimal differentials necessitate precise system design due to narrow reset bands, while high flow rates typically result in substantial pressure drops affecting differential calculations. The valve's porting is intentionally large relative to its capacity to encourage the use of equally large piping, minimizing issues related to flow-induced pressure drops. The pilot valve's spool design maintains a consistent differential ratio by utilizing spool diameters that resist wear over time. It's important that the accumulator pilot valve setting remains below any reliefs on the pump side to prevent excessive heating. Additionally, while this package includes an overpressure relief device set higher than any pilot valve settings and capped for safety, it should not be relied upon as a primary control measure but rather as an emergency safeguard within hydraulic systems operating at capacities up to 40 gpm (160 L/min).
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.