If you want to provide water or any chemical @ 50 meter height how much
head will you prefer for any selected pump...consider it is M.S
pipings...how much friction loss will be there...show with calculation.

i am trying to select the correct grade steel for a shaft
that will have a flap on it weighing about 4.5 tons being
forced up with hydraulic rams. can someone tell me what
grade the shaft should be and if it should be stainless
steel or not

hi friends i am harish and i have a problem plz solve it . . The problem are how to calculate the rpm of mechanical blower if any formula for calculate for this then tell me if drive shaft gear are 40 teeth and driven shaft gear are 70