API 610 pump

[rotaryguy]

hi guys,

i am looking for vertical pumps and wondering what is exact difference between VS4 and VS5 type of API 610 pumps.

thanks
rotor

 

[pmover]

rotaryguy,
from api-610, 10th ed:

"4.2.14 Pump type VS3
Wet pit, vertically suspended, single-casing axial-flow pumps with discharge through the column shall be designated pump type VS3.

4.2.15 Pump type VS4
Vertically suspended, single-casing volute line-shaft driven sump pumps shall be designated pump type VS4.
"

good luck!
-pmover