A tilting disc check valve is to be installed in a 4-nom sch 40 steel pipeline.
For the valve being considered, the angle α = 5°. The fluid being transported through the pipeline is a 20% ethylene glycol solution at a 20°F. The volumetric flow rate of the ethylene glycol is 425 gpm.

a. Specify the size and ASME class of the check valve required.

b. Determine the total pressure drop (psi) due to the check valve and any reducers required to connect to the 4-nom pipe.