The diameter of the discharge and suction pipe of a boiler feedpump is 4 inches and 6 inches, respectively. The water delivered is250 GPM and the temperature is 60 F. The discharge pressure nearthe pump is 90 psig and the suction is 12 in.hg vacuum. Find thetotal dynamic head if the discharge gage is located 3 ft above pumpcenterline and the vacuum gage connection to the suction pipe is 2feet below the center of the pump. Assume that the head necessaryto overcome the frictional resistance through the pump is 2.20feet.
