Series Overview: The Nachi PVS Series hydraulic variable high - pressure piston pumps are designed to provide efficient and reliable hydraulic power in a wide range of applications. These pumps are part of Nachi's advanced hydraulic product line, known for their precision and durability.
Application Range: They are used in various industrial settings such as machine tools, plastic injection - molding machines, and heavy - duty construction equipment. Their ability to provide variable high - pressure hydraulic fluid makes them suitable for applications that require precise control of force and speed.
Performance Specifications
Flow Rate
Variable Flow Rate: The PVS Series pumps offer a variable flow rate to meet different operational requirements. The minimum flow rate can be adjusted to nearly zero, depending on the pump's control mechanism. The maximum flow rate varies by model. For example, some models can have a maximum flow rate ranging from 100 to 500 liters per minute (L/min), allowing for flexibility in hydraulic system design.
Flow Rate Control Precision: These pumps are engineered for precise flow rate control. The variable displacement mechanism enables accurate adjustments. The flow rate can be controlled with a high degree of accuracy, typically within a few percent of the set value. This precision is crucial for applications where exact fluid delivery is essential.
Pressure Specifications
High - Pressure Capability: The PVS Series is designed for high - pressure applications. The rated working pressure usually falls in the range of 280 - 350 bars (4060 - 5075 psi). This high - pressure rating allows the pumps to power hydraulic systems that require significant force, such as in high - tonnage presses.
Peak Pressure Endurance: In addition to the rated pressure, the pumps have the ability to withstand peak pressures. The peak pressure, which they can tolerate for short - term surges, is typically higher than the rated pressure. It can range from 380 - 450 bars (5510 - 6525 psi), depending on the specific model.
Speed Characteristics
Operating Speed Range: The pumps have an operating speed range measured in revolutions per minute (rpm). The minimum operating speed is generally around 600 - 1000 rpm to ensure proper lubrication and smooth operation of the internal components. The maximum speed can reach up to 3000 - 3500 rpm, depending on the model and the requirements of the hydraulic system.
