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Which Industrial Vacuum Pump to Choose? - Key Parameters
Today, we return to the topic of industrial vacuum pumps and attempt to decode the table from our previous article. We will compare three pump models from the VPBDR series: VPBDR16, VPBDR24, and VPBDR30.
The referenced table presents the key features (properties) of these three industrial vacuum pump models available in our store.
For those unfamiliar with the subject, the table may initially seem unclear. Therefore, we will explain what the specific values mean and how they translate into the device's operation and performance.
Getting Started
Let's begin with some basic details. The table displays the dimensions and weight of the pumps. Notably, the most efficient model is nearly twice as heavy as the least efficient one. While this may not be a decisive factor in the purchasing decision, it does impact the comfort and ease of use.
Ultimate Vacuum Value
One of the two most important parameters to consider when selecting a pump is the ultimate vacuum it can achieve. This refers to how closely a pump can reach absolute vacuum, i.e., the lowest pressure it can generate. The required vacuum level depends on the intended process. Some applications require a very high vacuum, while others function well with lower values. In such cases, choosing a pump with a higher ultimate pressure that still meets process requirements can help reduce purchase and operational costs, lower energy consumption, and extend the device’s lifespan.
All VPBDR series pumps available in our store achieve the same ultimate vacuum level of 6x10⁻² Pa. Their rotational speed is also identical, meaning their blades complete the same number of rotations per minute. However, this does not mean there are no differences between the VPBDR series pumps.
Pumping Speed – Capacity
Another key parameter, besides the ultimate vacuum value, is the pumping speed, also referred to as capacity or performance. Pumping speed determines how quickly a pump can remove a certain amount of gas within a specific timeframe. It is measured in cubic meters per hour (m³/h) or CFM (cubic feet per minute), which represents the volume of gas moved per minute.
The required pumping speed should match the chamber volume and the speed at which the vacuum needs to be achieved. As you can see, this value differs for each pump model. It significantly impacts how quickly the pump can reach its maximum vacuum level. Although all VPBDR series pumps ultimately achieve the same vacuum level, the most efficient model, VPBDR30, will reach it much faster than the others. This is due to differences in motor power and the size of the blades used in each pump.
Pump Inlet and Outlet Connections
It is also worth noting that the VPBDR30 model has larger vacuum connections on both the inlet and outlet than the VPBDR16 and VPBDR24 models. This allows for the attachment of hoses with a larger diameter, ensuring optimal performance. This is particularly important when assembling a vacuum system or replacing individual components.
Purchase Cost
These differences are also reflected in the price of each product. Our goal is to offer customers the flexibility to choose a pump that meets their process requirements at an affordable price. For those whose applications do not require high power or capacity, a lower-cost, lower-performance pump may be the best option.
Conclusion
In summary, selecting the right vacuum pump primarily depends on balancing ultimate vacuum and pumping speed.
Since the terms performance and pumping speed (capacity) are often used interchangeably, it is important to note that manufacturers and distributors may use either term in product specifications. In some cases, performance is treated as a broader parameter, while specific values are listed under pumping speed.
When making a decision, we recommend considering the requirements of your process to minimize unnecessary costs, especially if high vacuum levels are not required.
Following these guidelines will help you choose a pump that ensures efficiency, energy savings, and long-term reliability for your vacuum system.
We invite you to explore our extensive selection of both industrial and general-use vacuum pumps :