How Does a 90-Degree Bend Affect Pressure Drop in Pipes?

[Yogesh Kamble]

I have a centrifugal pump that gives flow of 56 lit/min at 50 psi.
Media: clear water, Temp. ambt
The discharge pipe size: 1 1/2", Material: SS
Total pipe length: 14 feet

At 3 feet from pump discharge there is 90 degree bend and again at 6feet there is 90 degree bend. My question is what would be the pressure drop due to bends.
and how to calculate that...

 

[LowlyPion]

I have a centrifugal pump that gives flow of 56 lit/min at 50 psi.
Media: clear water, Temp. ambt
The discharge pipe size: 1 1/2", Material: SS
Total pipe length: 14 feet

At 3 feet from pump discharge there is 90 degree bend and again at 6feet there is 90 degree bend. My question is what would be the pressure drop due to bends.
and how to calculate that...

Welcome to PF.

It will help if you have the pressure loss coefficient for the bends.

Here is a link that might help point you in the right direction:
http://www.engineeringtoolbox.com/minor-pressure-loss-ducts-pipes-d_624.html