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This post was last edited by A Le on 2017-1-17 at 15:49. In today’s society, there is an increasing emphasis on environmental protection, and high standards are set regarding noise levels. Water ring vacuum pumps may generate some noise when vibrating, which can affect the surrounding area. Below are some methods to address the vibration problem in water ring vacuum pumps. I. Installation of spring shock absorbers: 1. Selection of the style of spring shock absorber for vacuum pumps: Self-standing spring shock absorbers are generally chosen, as they have a simple structure and lower cost. The springs are exposed, which makes it easy to monitor their condition at any time; this allows for timely replacement of worn-out springs, thereby preventing situations where excessive rusting leads to sudden sagging of the vacuum pump, resulting in damage to the equipment and broken pipelines. 2. Selection of springs: Generally, spring manufacturers must meet the following requirements when selecting springs: the diameter of the spring should be at least 0.8 times its height under rated load; the spring must have a certain amount of additional travel, with this value being at least 50% of the rated static deflection; the horizontal stiffness of the spring should be at least 100% of its vertical stiffness, in order to ensure the stability of the shock absorber. 3. Selection of the deflection of spring shock absorbers: Generally, the rated deflection (the maximum compression amount of the spring) provided by shock absorber manufacturers is around 25 MM (with a natural frequency of approximately 3–4 Hz). This deflection is sufficient for vibration isolation in vacuum pumps operating at 650 revolutions per minute. When the rotational speed is below 650, it is recommended to use spring isolators with a deflection of less than 40. II. Installation of rubber vibration isolators: Selection of rubber vibration isolators: The materials used are generally neoprene (C.R.) or natural rubber (N.R.). Compression-type rubber vibration isolators are usually chosen; for lighter vacuum pumps, shear-type rubber vibration isolators can be utilized. Compared to spring-based vibration isolators, rubber vibration isolators offer relatively lower vibration isolation performance. III. Installation of inertial bases: To meet more stringent vibration control standards, using spring isolators in conjunction with inertial bases is undoubtedly the best option. The above three aspects represent methods for addressing the vibration problem in water ring vacuum pumps. You can refer to them and apply them in actual production to reduce the impact on the environment. For more information, please visit the China Pump Industry Network