Flow Relation for orifice with pipe tappings

what's radius tappings? -------flow values for pipe tappings?

The Darcy-Weisbach and/or Colebrook equations would apply.

to with the orifice flow as well, as long as the pipeline remains at a constant pressure whether it be at a straight length of pipe of a nearby fitting. This is a pipeline under pressure, correct?????

A standard hydraulics textbook will give you all the information you require regarding orifice flow formulas. May I suggest that you pick up your textbook that your course Professor requires you to read and learn from. You can also do a Google Search to find the formulas. Good luck on your next exam because I think you're going to need it!

I think the same formula applies in this situation e.g you can start your calculations by assuming an orifice (Flange) is an smooth hole in a pipe, and you know the pressure inside the pipe (net pressure head available at the upstream). flow can be calculated through this orifice.

This orifice is connected to a straight pipe so you can calculate head loss through this pipe (branch). The pressure head available in main line minus the head loss in the branch will give you the differential pressure. All this is based only on assumption you can also cosult any hydraulic book and find some relation about flow through branches as there are many other factors to taken into account like head loss at sudden contraction, friction factor of the branch pipe.

Remember FLOW IS DUE TO PRESSURE AND PRESSURE IS DUE TO FLOW.

IQBAL

→ Perry, "The Chemical Engineer's Handbook", any edition.