Welch 1400 flushing run
Posted: Sat Mar 17, 2018 12:13 pm
Hello, all.
Today I finally acquired motor pulley for my Welch 1400 pump. The pulley was 3D printed since I could not find a replacement online. After it was put together, it's inlet was capped off and the pump was turned on for 45 minutes. Then the dirty, but metal particle free, oil was drained from the pump head. The pump head was then refilled with fresh oil and its performance was measured with a Mastercool thermocouple gauge. After two minutes the gauge read around 150 microns. I'm sure it deserves at least, a second flushing run.
During these trials, the sound the pump made was at first a bubbling noise that then receeded to a clicking noise similar to turning back a bicycle pedal.
Hope I'm on a path to a great pump for fusor and other vacuum-based experiments.
Today I finally acquired motor pulley for my Welch 1400 pump. The pulley was 3D printed since I could not find a replacement online. After it was put together, it's inlet was capped off and the pump was turned on for 45 minutes. Then the dirty, but metal particle free, oil was drained from the pump head. The pump head was then refilled with fresh oil and its performance was measured with a Mastercool thermocouple gauge. After two minutes the gauge read around 150 microns. I'm sure it deserves at least, a second flushing run.
During these trials, the sound the pump made was at first a bubbling noise that then receeded to a clicking noise similar to turning back a bicycle pedal.
Hope I'm on a path to a great pump for fusor and other vacuum-based experiments.