Methods of Estimating Loads in Plumbing Systems.
Methods of Estimating Loads in Plumbing Systems.
(13863 K)
Hunter, R. B.
BMS 65; 23 p. December 16, 1940.
Keywords:
plumbing; valves
Abstract:
This report describes a method of estimating the demand
and sewage loads for which provision should be made in
designing plumbing systems in order that the service may
be satisfactory. The characteristics of flow through a
plumbing system and of the operation of supply valves
and plumbing fixtures are described, and their influence
on the method of estimating the load to be expected is
discussed. The relative load-producing values of
different kinds of commonly used plumbing fixtures are
analyzed, and a table is developed giving relative load
weights in terms of a load factor called the "fixture
unit." An estimate curve developed by means of the
probability function is given, and its use in
conjunction with the table of fixture units is
illustrated.
