Table 1 Essential parameters of the pump
From: Investigation on Reduction of Pressure Fluctuation for a Double-Suction Centrifugal Pump
Parameter | Value | |||
|---|---|---|---|---|
Model #1 | Model #2 | Model #3 | Model #4 | |
Rotational speed n (r/min) | 2980 | |||
Design flow rate Qd (m3/h) | 3800 | |||
Design head Hd (m) | 170 | |||
Specific speed ns | 168 | |||
Impeller inlet diameter Din (mm) | 151.3 | |||
Impeller hub diameter Dhub (mm) | 122 | |||
Impeller shroud diameter Dshr (mm) | 273.3 | |||
Impeller outlet diameter D2 (mm) | 396 | 396 | 390 | 390 |
Width of each impeller exit b2 (mm) | 56.8 | |||
Number of blades Zb | 6 | 7 + 7 | 7 + 7 | 7 + 7 |
Volute inlet width b3 (mm) | 178 | |||
Volute tongue diameter D3 (mm) | 412 | |||
Radial gap between impeller outlet and volute tongue G (mm) | 8 | 8 | 11 | 11 |
Staggered angle between impellers of the two sides θ (°) | 0 | 0 | 0 | 12 |