Minimize the number of elbows, vertical lifts, and length of flexible hose.
Avoid up-slopes in material lines.
Avoid multiple bends after exiting a take-off box.
Do not undersize pumps…they will work harder and increase energy costs.
*Size pumps properly, according to these rules:
1 horizontal ft of tubing = 1 equivalent ft.
1 vertical ft of tubing = 2 equivalent ft.
One 90 degree elbow = 20 equivalent ft.
1 ft of flex hose = 3 equivalent ft.
Remember to consider obstacles that stand in the way of conveying and air lines – such as HVAC ducts, walls, etc.
An average railcar is 66 ft long.
There are “Pump Curves” for each size of each type of pump. The equivalent feet and required conveying rate in lb./hr. are compared to the pump curves to determine the pump size required.
TIP Keep pump filters clean and empty cyclone dust collector pan to maximize pump
TIP Line plugging and shorter pump life will be the result if you undersize pumps.