Search results with tag "9 9 9"

CENTRIFUGAL PUMP SELECTION, SIZING, AND …

We can calculate the impeller size required by linear interpolation. For example, if the operating point falls between the 9" and 9 1/2" impeller curve (see Figure 4-7), the following equation will give the correct size: () 9.5 9 9 9 91/2 9 H H H H DOP ∆ OP−∆ ∆ −∆ − = + where D OP: impeller diameter required; ∆H

  Linear, 9 9 9