As water ring vacuum pumps become increasingly common, their quality has also improved. Owing to their characteristics and advantages, they are widely used. To make better use of them, let us examine the issues relating to the pressure of water ring vacuum pumps.

The pressure of a water ring vacuum pump refers to the difference between the measured internal pressure and the theoretical vacuum. It is compared against the vacuum pressure value under theoretical conditions. Due to process limitations, it is impossible to reduce the internal pressure to the theoretical vacuum value of 0 Pa; consequently, the vacuum achieved by a water ring vacuum pump is higher than the theoretical vacuum value. Therefore, when expressed as a vacuum value, there is no negative sign preceding the figure. Relative pressure refers to the difference between the measured internal pressure and ‘atmospheric pressure’. It indicates the actual value by which the system pressure is lower than atmospheric pressure. As the air inside the container is evacuated, the pressure inside the water ring vacuum pump is always lower than the pressure outside the container. Therefore, when expressed as relative pressure or gauge pressure, a negative sign must precede the value, indicating that the internal pressure is lower than the external pressure.

When using a water-ring vacuum pump, the stability of its pressure depends on proper maintenance and care. During operation, attention must be paid to changes in the surrounding environment and the level of vacuum, ensuring that pressure is fully released to enhance operational efficiency. Timely cleaning and maintenance after use will extend the service life of the equipment.

The above covers issues relating to the pressure of water ring vacuum pumps. Following the correct operating procedures during use will ensure optimal performance. Should you have any queries, please do not hesitate to contact us by telephone. We will provide appropriate advice based on your specific requirements to help you avoid unnecessary complications arising from incorrect operation.