Pressure at Pump Suction in Closed System

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TalDad
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Joined: Wed Nov 12, 2014 3:14 pm

Pressure at Pump Suction in Closed System

Post by TalDad » Wed Nov 12, 2014 3:20 pm

I've recent done some pressure drop calculations on a closed system using a centrifugal pump. Each service has flow regulation valves to ensure proper flow. I am getting a high pressure (approximately 35 psi) at the pump suction but I'm pretty sure in a real life situation this pressure would regulate out. Can someone provide insight into the pump suction pressure that is showing in my calculations

admin
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Re: Pressure at Pump Suction in Closed System

Post by admin » Wed Nov 12, 2014 10:07 pm

You might have that pressure due to hydrostatic pressure. What is elevation difference off the system?
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TalDad
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Joined: Wed Nov 12, 2014 3:14 pm

Re: Pressure at Pump Suction in Closed System

Post by TalDad » Sat Nov 15, 2014 4:15 pm

It's a closed system so all pressure loss due to elevation is negligible.

admin
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Re: Pressure at Pump Suction in Closed System

Post by admin » Sun Nov 16, 2014 9:34 am

Even if the system is closed and for example you have 50 m height difference, pressure on the lowest point will have at least that 50 m water pressure.
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