"wet return main Deliveries of water meters, Table of approximate. "steam.. Details, Piping Determining size of cooling coil, Factors for. sizes of piping, General rules for. Diagram of heat loss through walls and windows. 99 145 145 145 145 145 96 144 95 vaporization 95 145 333 104 105 151 187 154 116 "wrought-iron steam, gas, and water pipe... 152 Direct flue radiators under natural draft, Heat emitted indirect, or semidirect, radiation, Definition of 146 170 PAGE Direct radiation, Sizes of mains for two-pipe systems and 155 323 228 Disinfectants. 356 Disk fans, Capacity of 216 Table of approximate air delivery of. 217 Disposal of sewage 316 Distribution, Water supply and District steam-heating system, Central-station or 321 186 Double-duct system of mechanical heating and ventilation 213 Downward pressure on the bottom of any vessel, General Draft, Flow of air in flues under natural 78 262 80 115 Heat emitted by direct flue radiators under natural 170 pipe, Table of weights of wrought-iron or steel 267 system details Drawing, Geometrical 276 275 71 Drawings, Blueprints from 75 Drip pipe, Relief, or bleeder 145 pipes for covered steam mains, Table of sizes of. Drop in pressure on sizes of mains, Effect of available. 159 or Mills, system of steam heating 150 Drops, Table of factors for basing sizes of mains on available Dry measure PAGE 161 35 Areas of flues and air openings for.. 192 192 191 66 66 Theoretical area of Durham system Duct and flue area increase, Table of factors for. Ducts, Allowance for frictional resistance of air. 64 Air velocities in... Capacity of natural-draft vent or independent flues, Splitting air-currents to Duodecimals Duty of pumps, Formula for supply 229 231 228 236 228 236 215 6 269 323 E. Earthen drain pipes 273 Effect of available drop in pressure on sizes of mains Elbows in air pipes, Frictional resistance of Electric gas-lighting apparatus Empirical rule for size of ordinary residence mains. English measures into metric, Conversion table of. 235 260 118 55 Exhaust and vacuum steam-heating systems or vacuum system of mechanical heating and PAGE 173 210 66 pipe for given horsepower, Approximate diame- 176 66 steam, Approximate amount of radiation per 177 66 66 heating system 173 66 systems of mechanical heating and ventilation, Expansion and weight of pure water 210 362 66 for various substances, Coefficient of 101 Extended surface indirect radiators under natural draft, 171 F. 66 Factors based on air changes, Duct and flue size. supply, Duct and flue size. "determining size of cooling coil 230 229 drops, 161 221 187 66 46 46 duct and flue area increase, Table of. 234 157 free-delivery capacity factors for centrif- Ferrules and nipples, Weight of brass Field-tile drain 221 268 268 318 |