Now on the market water ring vacuum pump models are broadly divided into the following categories: ★ 2BA water ring vacuum pump and compressor ★ SK water ring vacuum pump and compressor ★ 2SK water ring vacuum pump and compressor ★ 2SK-P1 water ring pump - atmospheric jet Pump Unit ★ 2BV water ring vacuum pump and compressor ★ 2BE water ring vacuum pump and compressor ★ 2BEC water ring vacuum pump and compressor Depending on the type of vacuum pump, vacuum pump at work, you need to pay attention to the following two aspects: 1, In the high-efficiency zone, that is, in the area of ​​critical vacuum or critical exhaust pressure. 2, should be avoided in the maximum vacuum or maximum exhaust pressure near the operation. Operating in this area is not only inefficient but also unstable and prone to vibration and noise. Cavitation occurs frequently in vacuum applications where the vacuum is high, and the obvious hallmark of this phenomenon is noise and vibration in the pump. Cavitation can cause damage to the pump body, impeller and other parts, so that the pump can not work. According to the above principle, when the pump required vacuum or gas pressure is not high, priority can be selected in the single-stage pump. If the vacuum or exhaust pressure is high, the single-stage pump often can not meet, or require the pump at higher vacuum conditions still have a larger amount of air, which requires the performance curve at a higher degree of vacuum is flatter, the choice of two Pump. If the degree of vacuum required in -710mmHg above, the optional water ring - air pump or water ring - Roots vacuum unit as a vacuum device. If only for the vacuum pump, the single-use pump is better. Because the single-action pump is simple in construction, easy to manufacture and maintain, and has good resistance to cavitation under high vacuum conditions. If only for larger compressor use, then the choice of double-acting pump more appropriate. Because the double-acting pump gas volume, small size, light weight, radial force can be automatically balanced, the shaft is not prone to fatigue fracture, water ring pump longer life.
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