Vertical Turbine Submergence
Vertical Turbine Submergence
(OP)
A quick question:
-Assuming a constant speed vertical turbine in an open pit without a strainer: Does Submergence vary with pump flow?
-With a strainer, can you assume that no fluid level is required to avoid vorticity? Or rather, does a strainer surpress vorticity 100%?
Thanks!
-Assuming a constant speed vertical turbine in an open pit without a strainer: Does Submergence vary with pump flow?
-With a strainer, can you assume that no fluid level is required to avoid vorticity? Or rather, does a strainer surpress vorticity 100%?
Thanks!





RE: Vertical Turbine Submergence
- Yes
- No
Cheers!
RE: Vertical Turbine Submergence
A strainer will increase the NPSH required slightly (which is a function of submergence in a vertical pump) but I believe the affects on vortex are negligible as the suction bell area remains the same. Some mfg will use what's called a suction umbrella to increase the suction bell dia in applications where available submergence is limited.
Did you know that 76.4% of all statistics are made up...
RE: Vertical Turbine Submergence
1. locate it
2. believe it
3. exceed it if at all possible.
Also find out about pit sizing requirements from your pump mfg.
rmw