The tank is 4' 11" tall with 4' head and water temp in the tank is almost constant. The suction line has 2 ball v/v's and 3 90's and a strainer. Total friction loss would be 1psi for a flow of 30gpm. Atmospheric condition deosnt change since this tank is in ISBL.Strainer will be cleaned once in...
Suction line is 2"dia and 18ft long. 2 years ago they have installed a strainer. I dunno how much would be the friction loss thru a strainer so i added .7psi to 0.3psi due to pipe and fittings loss.
One of the centrifugal pumps(30gpm/100ft head) in my facility is facing many seal failures. This pump pumps 200 deg F water from a OPEN TANK with 4' static head.
Is Surface pressure equals vapor pressure here??
The suction pressure reads 20 - 40 inch water( fluctuates a lot) and discharge...
