Using GRAPHALLOY shaft sleeve so as to prolong the service life of the pump

Using GRAPHALLOY collar to prolong the service life of the pump - 2019 07 - 17 GRAPHALLOY self-lubricating wear parts can prevent the pump in the dry run, low flow, start, slow jam during rolling and closed. The operation often leads to metal or plastic bearing failure. A leading north American printing paper, specialty paper and pulp manufacturer found them every four to six months would be at an alarming frequency rebuild their mill pumps. Will these Goulds VIT type vertical turbine pump ( 600马力,120 RPM) Into the river will suck water mill, these pumps are using the polymer water lubrication bearing. Unfortunately, bearing wear very quickly, the premature bearing failure causes large pump vibration, which greatly shorten the life of them. The company decided to test GRAPHALLOY ( Graphite - Metal alloy) Self-lubricating bushing, see if they will be more durable than the original bearings. Plant maintenance manager and their pump repair shop manager held a meeting with the GRAPHALLOY bushing manufacturer. They decided to bring the standby pump test GRAPHALLOY collar, so that it is installed at the next shut down the factory. They see remove standby pump, a lot of tiny particles is entered through the polymer bearings. So all the pumps related research information is sent to the Graphite Metallizing engineering team, they chose the GRAPHALLOY Babbitt bushing is used in the pump cylinder, the volute and pan bushing. Bushing rapid transit and installed in the pump. With GRAPHALLOY bushing spare pump put into operation in January 2016, after more than two years, pump still don't have any problem. Maintenance manager recently on the pump USES a vibration meter, and the report says it 'has seen the best in the pump vibration level. 'the factory in 2018 to four other pump use GRAPHALLOY bushing.