Section 10
Fluid Flow


10.1 Compressed Air

10.1.1

Pressure Drop in Pounds   

Per Square Inch per 100 Feet 

of Schedule 40 Pipe 

Pressure Drop in Pounds 
Per

10.1.2

Square Inch per 100 Feet of 

Schedule 40 Pipe 

(Graphical)

10.1.3

Relative Volume of Free Air   

to Air at Various Pressures

10.2

Fuel Oils

10.2.1

ASHRAE

10.2.2

Kendrick

10.3

Natural and LP Gases

10.4

Refrigerants

10.4.1

Pipe Capacities

10.4.1.1

Carrier

10.4.1.2

Kendrick

10.4.2

Velocities

10.4.3 

Weights

10.5

Sewer Circular-Pipe Channel

Flow Charts

10.6

Steam and Condensate

10.6.1

Design

10.6.2

Flash Steam

10.6.3

Humidifiers

10.6.4

Pipe Capacities

10.6.4.1

Armstrong

10.6.4.2

ASHRAE

10.6.4.3

Kendrick

10.6.4.4

Leslie

10.6.4.5

Ricwil

10.6.5

Pressure Reducing Valves 

and Air Loaders

10.6.6

Safety Valves and Drip Pan 

Elbows

10.6.7

Trap Selection

10.6.8

Valves and Fittings Pressure 

Drops

10.6.9

Velocities for Steam Flow

10.7

Viscous Liquids

10.8

Water

10.8.1

Friction Loss for Water in 

Copper Pipe

10.8.1.1

Feet Per 100 Feet

10.8.1.2

Feet Per 100 Feet—Closed  

and Open Systems (Graphical)

10.8.2

Friction Loss for Water in 

Plastic Pipe

10.8.3

Friction Loss for Water in 

Schedule 40 Steel Pipe

10.8.3.1

Pounds Per Square Inch

10.8.3.2

Feet Per 100 Feet—Closed  

Systems (Graphical)

10.8.3.3

Feet Per 100 Feet—Open 

System (Graphical)

10.8.4

Orifices

10.8.5

Valves and Fittings Friction 

Loss

10.8.6

Water Velocities

10.8.6.1

Coolers and Condensers

10.8.6.2 

Pipe, Carrier

10.8.6.3

Pipe, Crane

10.8.6.4 

Pipe, Leslie