Vickers 25V14, 25V17, 25V21 Pump Cartridges
Overview
Vickers, a well - established brand in the hydraulic industry, offers a series of high - quality pump cartridges, including the 25V14, 25V17, and 25V21 models. These pump cartridges are integral components in hydraulic systems, playing a crucial role in converting mechanical energy into hydraulic energy to drive various hydraulic actuators.
Design and Structure
1. General Design Features
All three models (25V14, 25V17, 25V21) share a common basic design philosophy. They are designed as cartridge - style components, which means they can be easily inserted and removed from a pump housing. This modular design allows for quick maintenance and replacement, reducing downtime in hydraulic systems.
The pump cartridges are typically made from high - strength materials such as hardened steel for the rotating and sliding parts. This ensures durability and resistance to wear and tear, even under high - pressure and high - speed operating conditions.
2. Model - Specific Dimensions
• 25V14: The "14" in the model number may refer to specific dimensional characteristics, such as the displacement or the size of the internal components. It has a relatively compact design, suitable for applications where space is limited. The outer diameter and length of the cartridge are optimized to fit into standard pump housings while providing sufficient flow capacity for small to medium - sized hydraulic systems.
• 25V17: The 25V17 is slightly larger in terms of displacement compared to the 25V14. It may have a larger internal volume and more robust components to handle higher flow rates. The dimensions are adjusted to balance the need for increased performance with the requirement of fitting into compatible pump housings.
• 25V21: The 25V21 represents the largest of the three models in this series. It is designed for high - flow applications, with a larger displacement and more powerful internal mechanisms. The outer dimensions are larger to accommodate the increased size of the internal components, but it still maintains the cartridge - style design for easy installation and maintenance.
Performance Characteristics
1. Flow Rate
• 25V14: Offers a relatively moderate flow rate, typically suitable for applications that require a steady but not extremely high volume of hydraulic fluid. It can provide sufficient flow for small hydraulic cylinders, motors, and other actuators in light - duty machinery.
• 25V17: Provides a higher flow rate compared to the 25V14. This makes it suitable for medium - sized hydraulic systems, such as those used in construction equipment for lifting and moving operations.
• 25V21: Delivers the highest flow rate among the three models. It is ideal for heavy - duty applications, such as large industrial presses, mining equipment, and marine hydraulic systems, where a large volume of hydraulic fluid needs to be delivered quickly.
2. Pressure Rating
All three pump cartridges are designed to withstand high pressures. They can operate under pressures that are typical in industrial and mobile hydraulic systems, ranging from moderate to very high levels. The materials and construction of the cartridges ensure that they can maintain their performance and integrity even when subjected to significant pressure loads.
3. Efficiency
Vickers has optimized the design of these pump cartridges to achieve high volumetric and mechanical efficiency. The internal geometry of the cartridges, including the shape of the vanes, the clearances between components, and the porting design, is carefully engineered to minimize internal leakage and mechanical losses. This results in efficient conversion of mechanical energy into hydraulic energy, reducing energy consumption and improving the overall performance of the hydraulic system.
Applications
1. Industrial Machinery
• In manufacturing plants, the 25V14, 25V17, and 25V21 pump cartridges are used in various types of machinery, such as injection molding machines, metal forming presses, and machine tools. The different flow rates of these cartridges allow them to be matched to the specific requirements of each machine, providing the necessary hydraulic power for operations such as clamping, ejection, and movement of the workpiece.
• In material handling equipment, such as conveyors and lifts, these pump cartridges can provide the hydraulic force required for lifting and moving heavy loads.
2. Mobile Equipment
• In construction machinery, like excavators, loaders, and backhoes, the pump cartridges are used to power the hydraulic cylinders that control the movement of the boom, bucket, and other attachments. The 25V21, with its high flow rate, is often used in large excavators for fast and powerful operation, while the 25V14 and 25V17 may be used in smaller or more specialized construction equipment.
• In agricultural machinery, such as tractors and combine harvesters, these pump cartridges are used to operate the hydraulic systems for steering, lifting, and other functions.
3. Marine Applications
• In ships and boats, the pump cartridges are used in various hydraulic systems, including steering gears, winches, and hatch covers. The ability to withstand high pressures and provide reliable flow makes them suitable for the demanding marine environment.
Maintenance and Service
1. Regular Inspection
Regular visual inspection of the pump cartridges is essential to detect any signs of wear, leakage, or damage. This includes checking for leaks around the cartridge seals, abnormal noise during operation, and any visible damage to the external surface of the cartridge.
2. Seal Replacement
The seals in the pump cartridges play a crucial role in preventing leakage. Over time, the seals may wear out or become damaged. Regular replacement of the seals according to the manufacturer's recommendations is necessary to maintain the performance and reliability of the pump cartridges.
3. Fluid Cleanliness
Maintaining clean hydraulic fluid is vital for the longevity of the pump cartridges. Contaminants in the fluid can cause wear and damage to the internal components of the cartridges. Regular filtration and fluid analysis are recommended to ensure that the fluid meets the required cleanliness standards.
