Plumbers' HandbookMcGraw-Hill book Company, Incorporated, 1922 - 629 σελίδες |
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Σελίδα 8
... necessary to raise the tem- perature of 1 lb. of water 1 ° F . Ordinarily this can be taken as one . The weight of the water in this case is 1 and the change of tempera- ture ( 60 32 ) degrees . Hence , the excess heat already in water ...
... necessary to raise the tem- perature of 1 lb. of water 1 ° F . Ordinarily this can be taken as one . The weight of the water in this case is 1 and the change of tempera- ture ( 60 32 ) degrees . Hence , the excess heat already in water ...
Σελίδα 11
... fourth the total gallons of water required per hour should equal the heater capacity . Hence , Q = 4 × G × 8 × ( 140 – 60 ) = 72.594 B.t.u. in above problem . A CHIMNEYS1 In order to cause the necessary amount of HEAT 11.
... fourth the total gallons of water required per hour should equal the heater capacity . Hence , Q = 4 × G × 8 × ( 140 – 60 ) = 72.594 B.t.u. in above problem . A CHIMNEYS1 In order to cause the necessary amount of HEAT 11.
Σελίδα 12
Samuel Edward Dibble. A CHIMNEYS1 In order to cause the necessary amount of air to flow through the fuel bed and force the products of combustion through the gas passages of a boiler , a difference in pressure between the ashpit and the ...
Samuel Edward Dibble. A CHIMNEYS1 In order to cause the necessary amount of air to flow through the fuel bed and force the products of combustion through the gas passages of a boiler , a difference in pressure between the ashpit and the ...
Σελίδα 13
... necessary that the chimney shall have the proper height ( H in Fig . 6 ) . H can be calculated from formula below . H H V th tc = = == = = V2 ( 460 + tc ) . X 64.4 th - to effective height of chimney measured in feet from furnace grate ...
... necessary that the chimney shall have the proper height ( H in Fig . 6 ) . H can be calculated from formula below . H H V th tc = = == = = V2 ( 460 + tc ) . X 64.4 th - to effective height of chimney measured in feet from furnace grate ...
Σελίδα 16
... necessary to have a chimney of proper height and cross - section area . There are certain construction features , however , which must be considered in addition to the above requirements . Location of Chimney . - The chimney should be ...
... necessary to have a chimney of proper height and cross - section area . There are certain construction features , however , which must be considered in addition to the above requirements . Location of Chimney . - The chimney should be ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acetylene acid allowed alloy amount angle bend board or bureau boiler brass building calcium sulfate carbon cast iron CAST-IRON DRAINAGE FITTINGS cent chaser chimney coating cock column connection copper corrosion cubic cubic foot diameter Dimension discharge dissolved elbow enter eutectic fixtures flame flange floor flush foot furnace gage gallons galvanized gases heat heater house drain hydrogen inlet installed joints lead lead crystals less manganese material melting metal molten nitric acid outlet oxide oxygen pattern phosphorus placed plumbing pounds pressure pump radiator roof seam sewer shown in Fig side slag solder solution space square inch steam steel sulfur sulfuric acid supply surface TABLE tank temperature thread pipe threads toilet rooms trap tube urinal valve vent wall waste pipe water closets Weight of bundle Weight of sheet welding wrought iron zinc
Δημοφιλή αποσπάσματα
Σελίδα 522 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 605 - All connections of lead with iron pipes must be made with a brass sleeve or ferrule of the same size as the lead pipe, put in the hub of the branch of the iron pipe, and caulked with lead. The lead pipe must be attached to the ferrule by a wiped or overcast joint.
Σελίδα 179 - ... larger than those shown in the table are measured by the outside diameter and will be furnished with plain ends unless otherwise specified; for such sizes it will be necessary to accept Manufacturers' weights or calculate the weights on the basis of one cubic inch of steel weighing 0.2833 Ib.
Σελίδα 503 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Σελίδα 599 - Drains. id. ; 8. The main drainage system of every house or building shall be separately and independently connected with the street sewer, where such sewer exists, except where two houses are built together on a lot with a frontage of thirty feet or less., when one connection with main sewer will be allowed ; but there shall be a separate house drain for each house, connected by a "Y...
Σελίδα 536 - In multiple dwellings the walls of all courts, unless built of a light color brick or stone, shall be thoroughly whitewashed by the owner or shall be painted a light color by him, and shall be so maintained. Such whitewash or paint shall be renewed whenever necessary, as may be required by the health officer.
Σελίδα 607 - The branches on vertical lines must be made by "Y" fittings, and be carried to the safe with as much pitch as possible.
Σελίδα 609 - Vent lines shall be connected at the bottom with a soil or waste pipe or with the drain, in such a manner as to prevent accumulation of rust scale and properly to drip the water of condensation.
Σελίδα 536 - ... yards, areaways, vacant rooms and spaces, and all parts and places used in common in a clean, sanitary and safe condition, and shall keep such parts thereof as may reasonably be required by the commissioner of labor properly lighted at all hours or times when said building is in use for factory purposes.
Σελίδα 605 - All sewer, soil and waste pipes must be as direct as possible. Changes in direction must be made with "Y" or half "Y" branches, or one-eighth bends. Offsets in soil or waste pipes will not be permitted when they can be avoided ; nor, in any case, unless suitable provision is made to prevent accumulation of rust or other obstruction. Offsets shall be made with forty-five degree bends, or similar fittings. The use of T-"Y's" (sanitary T's) will be permitted on upright lines only.