Dry screw pump is a new type of vacuum pump, which is a new product of traditional vacuum pump. Because of its unique design principle, it can be oil-free and water-free, can be used as corrosion-resistant coating, and has excellent sealing design. In addition to its slightly expensive price, it will far surpass the performance of traditional vacuum pump in any aspect, and will have a great market prospect in the future.
We can select and judge high-quality dry screw vacuum pump through the following points:
1. Limit vacuum degree: of course, the lower the limit vacuum degree is, the better. At present, the domestic vacuum degree is generally about 5pa, and the imported vacuum degree is about 1pA.
2. Vibration and noise: the vibration must be small, and the noise must be less than 80 decibels.
3. If it is used in a corrosive environment, it is better to ask the manufacturer for a sample of the same coating, and take it to the factory for the test in the medium solution. The coating or coating ratio used by each manufacturer is different, and its performance will be greatly different.
4. Sealing: This is also very important, but it can only be understood from the manufacturer's recommendation. The most direct way is to determine whether there is leakage through the medium after connecting to the system.
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