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  1. gregorybosma

    Filtering mud out of compressed air lines

    I have a problem on mining equipment where an air solenoid valve is sticking on a 250 cfm shotcrete nozzle. In the mine, the 1" compressed air line is often dragged and submerged in mud before connecting to truck-mounted equipment. Despite our best efforts in training miners to blow air through...
  2. gregorybosma

    Looking for a mine-duty on/off air valve

    Hello everyone! I'm having trouble with a cleanout nozzle on some mining equipment-- the solenoid valve for this nozzle sticks open. The air going into this nozzle has a lot of dust/water, which prevents the diaphragm from sealing properly. I've considered filtering this air, but get backlash...
  3. gregorybosma

    Can I cause damage to cylinders by pulling a vacuum?

    I'm making a hydraulic suspension system for a heavy truck (mining equipment hauler). Essentially, it's a trailing arm design with a hydraulic cylinder in the place of a usual spring/shock. As a safety feature, the cylinders have an on-off valve attached on the "extend" side of the cylinders to...

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