Pipe Flow Calculations Forum

I actually am calculating these values to be negative. I am not reading any gauges on a real life system.

Hey all, I'm having trouble understanding something, hopefully someone can help. What does it mean if I am calculating a negative absolute pressure in a flow circuit. The flow is pumped up about 40 feet from an atmospheric tank and then runs horizontally for around 400 feet in 1.5 inch pipe, and ret...

Hello, I am new to piping and flow calculations. I am somewhat confused on this so bear with my limited knowledge. How would I know what the maximum possible flow rate is based on a pressurized line entering a building, say a high rise hotel? Would I have to know the pressure and pipe diameter enter...