ShenZhen Jakeconn Precision Technology Co., Ltd. , https://www.jakeconn.com
About miniature vacuum pump and gas sampling pump difference
Miniature vacuum pumps are typically defined as small-volume pumps capable of generating a negative pressure. However, when selecting such products, it's crucial to make a clear distinction between different types. True miniature vacuum pumps—such as the VM series, PK series, and PC series—are designed to evacuate sealed containers over extended periods and can handle significant loads. In contrast, gas sampling pumps (like the PM series or PS series) operate with lower internal and external pressure differences, making them suitable for light-load applications.
The difference in load capacity leads to significant variations in their design and components. Miniature vacuum pumps place high demands on both the diaphragm and motor, requiring excellent fatigue resistance, reliability, and long service life under continuous operation. On the other hand, gas sampling pumps are built to meet standards for very light loads, and even a slight increase in workload can cause damage. As a result, the cost of these two types of pumps differs greatly.
In summary, using a miniature vacuum pump for gas sampling offers higher reliability and longer lifespan, but at a higher cost. Conversely, using a gas sampling pump in slightly heavier load conditions may reduce its reliability and lifespan significantly, even causing failure, though it is more cost-effective. It's best to evaluate your specific needs or consult with an expert to find the optimal balance between cost and performance.
Some gas sampling pumps may achieve impressive vacuum and flow performance. However, achieving a certain technical specification is not the same as being able to operate reliably under those conditions over time. For example, a micro-pump might reach 30 kPa of vacuum, but if it's frequently used at that level, will it still function reliably? The ability to reach a target and the ability to work reliably under that condition are two separate factors. Always confirm with the manufacturer or dealer to ensure the pump meets your actual operational requirements.