How To Find The Right Turbomolecular Pump For You
The turbomolecular pump is used to maintain a high vacuum. The reason why it works is because gas molecules can be given momentum in a desired direction by repeatedly colliding them with the surface of a moving object. In this respect they are similar to a turbopump which uses a turbine to hit the gas molecules from the inlet to the exhaust in order to make and keep a vacuum. Most of these pumps operate according to the same principles. They use many pairs of rotors and stators to capture gas in the upper levels and compress it further downward through the lower stages until they maintain the pressure needed to keep a vacuum.
When you are looking to purchase a turbomolecular pump, you will find you have quite a number of choices available to you. Thankfully, in this article we will discuss a few of the more popular options you have and even provide you with some tips for buying rebuilt models.
The brand name of Leybold is synonymous with high quality and long life. They have one of the largest selections available, and because they sell their products directly on their own web site, shopping is easier than ever before. When it comes to the turbomolecular pump, their most successful model is the Turbovac. It comes in several different types, including the SL80, SL300, SL700, 1000 C, TW 250 S, and many more. Each of these pumps offers a wide range of technical features and advantages that the user can benefit from such as: oil free, high pressure foreline tolerance, installation in any orientation, and easy to build into highly complicated systems.
Another type of turbomolecular pump you may want to look at is the Edward EXT 70. This model also has a lot to offer. They come in either water cooling or forced air cooling, so you have a choice. Also worth noting:
• The ceramic bearings are lubricated to last a lifetime,
• They operate without the use of oil
• Have a low level of vibration
• Offer plenty of options for user configuration
• Screen prevents dirt and other debris from getting inside
• A vent port also ensure cleanliness is kept to a maximum
When you are buying a turbomolecular pump, it is usually a good idea to buy them brand new. Purchasing a pre-owned model can be risky. However, if you can’t afford to purchase a new one and are under harsh time constraints, it may be in your best interest to find a rebuilt model. One way that you can keep your risk to a minimum is by purchasing a certified one directly from the original manufacturer. There may even be a limited warranty that will guarantee it will work when you receive it.
