Volume loss of centrifugal pump including seal ring leakage loss, balancing mechanism leakage loss and interstage leakage loss. This article describes the seal ring leakage loss. In the entrance of the impeller is a seal ring, when the pump works, because the sealing ring on both sides with pressure difference between the side of the approximately impeller outlet pressure side

First, compare various suppliers program when select centrifugal pump, taking into account the premise of cost-effective as far as possible under the high efficiency of the program Second, the presence of a number of professionals in the plant producer, the impact of industrial pump efficiency of key components such as impeller, pump, pump cover, flow

m3/s m3/h ft3/min ft3/h gal/min gal/min L/s 1 3600 2.118880×103 1.271328×105 1.319816×104 1.585032×104 1600 2.777778×10-4 1 0.5885778 35.31467 3.66157 4.402867 0.2777778 4.719475×10-4 1.699011 1 60 6.228839 7.480517 0.4719475 7.865792×10-5 2.831685×10-2 1.666667×10-2 1 0.1038140 0.1246753 7.866792×10-3 7.576812×10-5 0.2727652 0.1605436 9.632614 1 1.200949 7.576812×10-2 6.309020×10-5 0.2271247 0.1336806 8.020836 0.8326748 1 6.309020×10-2 10-3 3.600000 2.118880 127.1328 13.19816 15.85032

The emergence of pumps for human life and production are very important. There are various water lifting devices in ancient times, such as the Egyptian chain pump (before the 17th century), China’s orange (before the 17th century), the pulley (before the 11th century), waterwheel (AD 1 century), and the 3rd century BC Ancient Greece Archimedes

Hydraulic loss of centrifugal pump including shock loss, whirlpool loss and frictional loss. First, the shock loss Each pump has its own design flow, when consumed in the design flow conditions at work, the entrance is down stream into the impeller blades, and therefore does not react with the blade hit the same outlet flow nor the occurrence

Centrifugal losses includes bearing, shaft seal and the impeller rub against the disk losses. First, the bearings, shaft seal friction loss Pump shaft is supported on bearings within the pump in order to prevent leakage of liquid out, set the seal. When the pump shaft rotates at high speed on friction with the bearing and shaft