Question about sizing the pipe that serve laundry washing machine in hotel

[MahmoudZakzok]

Dear All,
I need a reference or catalog that state the weight of clothes per room or person and how much water required per each kg or pound of cloth so i can size the main pipe that supply the laundry.

Regards,

 

[PEDARRIN2]

Use this link for an excel spreadsheet to calculate the pounds.

http://www.wisconsinlaundry.com/The

Laundry Cost Calculator.xls

You will also need to know what (and how many) washers are being specified.

Typical 40 lb - 50 lb washers that I have seen require 16 gpm.

I have never designed around the continuous washer/extractors - so if that is what you are designing around - I cannot help you.

 

[racookpe1978]

And, you MUST expect all of the installed washers to be running at the same time.

Subtract a few psig off of the water pressure as well - some other residents will be taking showers and filling bathtubs at the same time as the three/four/five washers are running.