Issues in selecting vacuum pumps for purchase
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Issues in selecting vacuum pumps for purchase. When purchasing a vacuum pump, there are two basic parameters: pumping speed and ultimate vacuum level. However, it’s difficult to determine these two parameters, so how can I choose the right model and make the purchase?
When purchasing, the vacuum level required for use should be specified; it’s not the ultimate vacuum value of the pump that matters. The ultimate vacuum value is a parameter used to determine whether a pump is of high quality, while the pumping speed is determined by calculating factors such as the amount of evaporation and leakage in the system.
The pumping speed generally needs to be determined based on the amount of non-condensable gas and leaks in the system, and it serves as the pumping speed for the unit. The ultimate vacuum level represents the highest vacuum degree that the unit can achieve once the working fluid has been specified; it is a measure of the unit’s quality. There are also dry vacuum pumps, which do not involve any working fluid
The pumping speed is the flow rate, while the vacuum level is the head
Water ring pump, oil-free vertical vacuum pump, two-stage Roots pump – selected based on the required ultimate vacuum level and pumping volume
The pumping speed is the flow rate, while the vacuum level is the head
This involves hiring part-time equipment engineers for procurement; it depends on the application process, as no data is available without which nothing can be done.
Does the poster who makes the purchase also have to be responsible for selecting the model? Is there a quotation request document? Have the manufacturers participating in technical exchanges or bidding submit their respective plans, and by comparing them, certain patterns can be identified
Send out the specific requirements so that the manufacturer can prepare a proposal for you
The parameters are determined by the process engineering team; otherwise, how can the equipment be purchased?