Construction Databook

Section 18: Plumbing

18.0.0 Introduction to Plumbing

Leonardo DaVinci is credited with the design and installation of the first indoor plumbing system in Italy in the mid-sixteenth century. Other than the addition of sophisticated pumps on the supply side and designer fixtures on the other end, not much has changed, except for the materials of construction (gravity still plays as important role today as it did in 1550). A building plumbing system will generally consist of incoming domestic water service and distribution, above- and below-grade drainage systems for both sanitary and storm water, a venting system, pipe, fittings, valves, pumps, and fixtures.

18.1.0 Equivalent Length (Pipe, Elbows, Tees and Valves)

18.1.1 Equivalent Length of Pipe for 90-Degree Elbows (In Feet)

18.2.0 Maximum Capacity of Gas Pipe (in Cubic Feet Per Hour)

By permission of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, Georgia, from their 1993 ASHRAE Fundamentals Handbook

18.3.0 Iron and Copper Elbow-Size Equivalents

By permission of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, Georgia, from their 1993 ASHRAE Fundamentals Handbook

18.4.0 Water Velocities (Types of Service)

By permission of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, Georgia, from their 1993 ASHRAE Fundamentals Handbook

18.5.0 Flow Rates/Demand for Various Plumbing Fixtures

By permission of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, Georgia, from their 1993 ASHRAE Fundamentals Handbook

18.5.1 Hot-Water Demand for Various Fixtures

By permission of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Atlanta, Georgia, from...

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