Evan Byrne
New Member
Hey all,
I am going to be installing a SQFlex 30-SQF-160 to run a solar irrigation system on my farm. I am going to be installing a CSV with it to reduce the cycling and I'm trying to figure out the maximum pressure my pump can build to properly size my poly pipe (200psi vs 250psi), and the CSV itself (some models top out at 150psi max inlet, some are 400psi). The pump curves provided for the SQF series are completely different than the standard pump curves. I'm not sure how to calculate the maximum pressure this pump can build. The literature states a maximum ambient pressure of 217psi, but that is also listed for all the SQF pumps, I believe that means max head of ~500ft.
My well is 200ft deep with water at 30ft. A Kw conversion would put this pump at roughly 3.2HP
Does anyone know how to calculate the maximum pressure this pump can build based on the pump curve? I have attached it.
Bonus question: Does anyone know of a 1-1/2" Stainless Long Barb/NPT fitting? There are great ones available for 1" and 1-1/4" but this pump discharges 1-1/2" and I'm trying to keep my friction loss at a minimum so I'd prefer to hang it on 1-1/2" poly. Is 2 hose clamps on a 5 barb short fitting ok? Would you trust it?
I am going to be installing a SQFlex 30-SQF-160 to run a solar irrigation system on my farm. I am going to be installing a CSV with it to reduce the cycling and I'm trying to figure out the maximum pressure my pump can build to properly size my poly pipe (200psi vs 250psi), and the CSV itself (some models top out at 150psi max inlet, some are 400psi). The pump curves provided for the SQF series are completely different than the standard pump curves. I'm not sure how to calculate the maximum pressure this pump can build. The literature states a maximum ambient pressure of 217psi, but that is also listed for all the SQF pumps, I believe that means max head of ~500ft.
My well is 200ft deep with water at 30ft. A Kw conversion would put this pump at roughly 3.2HP
Does anyone know how to calculate the maximum pressure this pump can build based on the pump curve? I have attached it.
Bonus question: Does anyone know of a 1-1/2" Stainless Long Barb/NPT fitting? There are great ones available for 1" and 1-1/4" but this pump discharges 1-1/2" and I'm trying to keep my friction loss at a minimum so I'd prefer to hang it on 1-1/2" poly. Is 2 hose clamps on a 5 barb short fitting ok? Would you trust it?
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