Floor Sink Sizing Calculations

Dfu drainage fixture unit values is defined by the the uniform plumbing code upc and can be used to determine required drainage capacities from fixtures and their service systems.

Floor sink sizing calculations.

This sizing tool is to provide a product s recommendation based on two factors. Dishwashers can be connected to a grease trap only if allowed by local code. Maximum flow rate calculated based on each of the sink compartment dimensions and the number of additional fixtures i e. Each dishwasher will require a seperate grease trap.

For floor drains and floor sinks take the volume of water produced by the number of hose bibs i e. 3 compartment sink 9 2 compartment sink use floor sink criteria based upon drain size or number of sinks whichever is larger each compartment is 3 dfus. Floor drains are primarily used for inside locations where the flow rate into the drain can be anticipated. Sizing pdi method using sink dimensions.

Now you need to understand what temperature rise means. Floor sinks dfus based upon sink drain size see table 2 below or section 702 1 in the upc. Floor and area drains receive liquid from surrounding areas and by the attached piping convey the liquid to the storm or sanitary drainage system. 1 5 2 0 gpm per 3 4 inch faucet.

Maintenance of grease inteceptors. Installation of grease interceptors. Floor drains zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax. Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need.

Sizing pdi method using sink volumes. Z1192 grease recovery appliance. We already covered gpm. 3 comp three into 1 at end closest to prep sink if neccessary i m not comfortable at this point i need to know beyond a shadow of a doubt if it s acceptable.

A fixture unit is not a flow rate unit but a design factor based on the rate of discharge time of operation and frequency of use of a fixture. Floor sinks that receive only ice machine and cooler condensate are not counted. Floor sink sizing excellent perception crack i especialy like the deep floor sink didn t even think of the different depths of all kinds of floor sinks thank you. Pdi size grease interceptor 1 1 4 1 7 5 10 1 1 2 2 15 15 2322 525 2 1 2 4 30 35 3537 550 464550 since the possibility of all the fixtures are used and drained simultaneously is very low using above sizing method can potentially result in an enormous flow and gross over sizing of the interceptor.

Area drains are designated for outside areas where rainfall intensity dictates sizing.