Pump Table Question

[MarkMcK]

In looking at the Gould's pump curves/tables [GS series 4" submersible pumps], there is a line entry in the table for "Shutoff PSI".

Goulds Pumps

Can anyone explain these values?

Thanks

Mark

 

[Valveman]

Shut off pressure is how much pressure a pump can build against a completely closed valve.

 

[Sponsor]

 

[Gary Slusser]

I've always explained it as the head (resistance to flow/pressure) of the system that the pump can not deliver any more water from.