The 6-inch, three-stage, 800-GPM mainline pump (IPDS)
b. Figure 2 shows the pump performance of a 6-inch, three-stage, 800-
GPM mainline pump (IPDS), operational output of 800-GPM at 1,800 FTH, at
2,100 RPM, when pumping liquids with specific gravity of 0.85 (diesel).
Using the pump graph in Figure 2.
Given a 6-inch, three-stage, 800-GPM
mainline pump (IPDS) with a head capacity of 1,800 RPM, product diesel, and
to determine the rate of flow and FTH.
(1) Enter the graph on the vertical line at 450 PSI for diesel.
Follow this line horizontally to the right until it intersects the head
capacity cure for 1,800 RPM. At this point, all the answers are determined
vertically, and horizontally.
(2) To read the rate of flow in GPM, move down to the horizontal line
for GM and read the answer 780 GPM.
(3) To determine the FTH, read to the left of PSI.
To be more
accurate or to confirm your reading, go through the formula that was given
earlier as follows: