亚洲天堂国产成人在线黄色_欧美日韩呦女一区二区三区_原味视频在线www国产_丁香五月综合激情婷婷六月天_国产中文字幕在线久_97精品尹人久久大香线蕉_国产免费内射又粗又爽密桃视频_毛片一级免费视频_黄色一级视频大片_少妇愉情理伦片丰满丰满午夜电影

Precision automatic frequency conversion constant pressure gear pump working principle is: the pump outlet pressure sensor is configured to convert the dynamic pressure measured values into electrical signals transmitted to the inverter automatically correct pump speed according to the set pressure , so that the pump always work according to the set pressure point , no relief in pipeline installation or manual reflux valve. During the first working frequency gear pump speed is low , since the speed with pump wear also will increase the pressure when the pump is working at full speed up the time if less than the set value, the system will automatically alarm , prompting the pump for repair or replacement pump.
Maximum frequency characteristics of the gear pump is a higher volumetric efficiency and good low-speed performance. The use of variable frequency pump gear pump electrical integration , pre- session low speed , the motor load is small, node performance has improved significantly , the highest saving rate of 60% , and low noise of the pump speed can be reduced, the use of the pump significantly extend life expectancy , can automate the entire combustion system unattended operation.
Frequency gear pump particularly suitable for petroleum, chemical , building materials household chemicals , electricity, road construction machinery, asphalt mixing stations and other sectors and industries where fuel delivery and injection , and more for all types of machine tools , internal combustion engines , air compressors, freezer, generator sets , marine and other types of machinery and equipment lubrication and cooling systems , such as hydraulic drive system can also be used . Frequency gear pump technology and installation parameters are as follows