Plumbing Calculation Tool

[sfxf]

Does anyone know any tool for quick calculating fixture units and sizing the plumbing piping? I have seen once, it is like the "ductulator" for sizing the duct and very easy to carry and use.

Thank you in advance!

 

[pedarrin]

ASPE (American Society of Plumbing Engineers) has some wheels that they recently developed. I have not obtained one yet, so I do not know how user friendly they are. I still use the old method of counting and comparing to the tables in the code.

If you are sizing the water pipe, I use the code tables to get the fixture unit to flow rate conversion and then use the Bell & Gosset System Syzer to get the pipe size. I also sometimes use the Cameron Tables for the sizing.

Hope this helps.

 

[R22Tailrotor]

I could sure use some sizing help. I have a three story home with full bathrooms on each floor. The upper story has a jacuzzi tub. The piping is 3/4 inch and it seems that we have a pressure problem when more than one faucet is operating. We are on a well and the pressure switch is set for 30-50 psi.

Bill

 

[ChrisConley]

The way that dometisc water pipes are sized is by counting fixture units. Each water using appliance in a home/commerical space has been assigned a number of fixture units. From there you can calculate the pipe size that should be suppling water. Consult your plumbing code.

 

[darugar]

check out this site on water flow calculator

http://www.sliderules.clara.net/collection/specialised/9918-mears-hyd.htm