Document jyLQJB1aeoZEgdX9kr8jKpp7y

16 CHAPTER 2 1953 Giiidi 1 atmosphere 1 in. water at 62 F (in vacuo) 1 ft. water at 62 F (in vacuo) 1 in. mercury at-62 F (in vacuo) 1 in. mercury at 32 F (in vacuo) Metric Units' 1 cm 1 in. 1m 1 ft 1 sq cm 1 sq in. 1 sq m 1 sq ft 1 cu cm 1 cu in. 1 cu m 1 cu ft 1 liter ... > 1 metric ton 1 gram 1 kilometer per hour 1 gram per square centimeter 1 kg per sq cm (metric atmosphere) 1 gram per cubic centimeter 1 dyne 1 absolute joule 1 Int. joule 1 metric horsepower . 1 I.T. kilocalorie, per kilogram 1 I.T. calorie per square centimeter 1 I.T. calorie per (second) (square centi- - meter) for a temperature gradient of 1 deg per centimeter- ( 14 .696 lb per square inch | 2116 lb per, square foot ... 1 33.94 ft.water^at 62-F-' ; I 30.01 in. mercury at 62 F ( 29.921 in. mercury at 32 F- e . 03609 lb per square inch .5774 oz per square inch . 197 lb per square foot I 0.4330 lb per square inch \ 62.37 lb per square foot 0.4897 lb per square inch I 7.835 oz per square inch 1.131 ft water at 62 F 13.57 in. water at 62 F -- 0.49115 lb per square inch -- v.osot ill. = U.U3Z8 tt = 2.540 cm = 3.281 ft = 0.3048 m. = 0.1550 sq in. = 6.452 sq cm = 10.76 sq ft = 0.09290 sq m => 0.06102 cu in. = 16.39 cu cm = 35.31 cu ft = 0.02832 cu m -- 1000 cu cm -- 0.2642 gal = 2.205 lb (avdp) = 0.4536 kg = 2205 lb (avdp) = 0.002205 lb (avdp) -- 0.6214 mph _ / 0.02905 in. mercury at 62 F \ 0.3942 in. water at 62 F = 14.22 lb per square inch _ / 0.03613 lb per cubic inch \ 62.43 lb per cubic foot = 0.00007233 poundals ( 10,000,000 ergs ' (0.7376 ft-lb = 0.7378 ft-lb / 75 kg-m per second \ 0.986 hp (U. S.) ==1.8 Btu per pound = 3.687 Btu per square foot ( 2903 BTU per (hour) (square foot) 'for a temperature gradient of 1 F [ deg per inch of thickness. Abbreviations and Symbols s 17 GRAPHICAL SYMBOLS FOR;,DRAWINGS?.; Graphical Symbols for Drawings Piping Heating .... 1. High Pressure(Steam ` 2. Medium Pressure Steam 3. Low Pressure Steam 4. High Pressure Return 5. Medium Pressure Return 6. Low Pressure Return_ _ 7. Boiler Blow Off 8. Condensate, or Vacuum Pump Discharge 9. Feedwater Pump. Discharge.... 10. Make-Up Water 11. Air Relief Line 12. Fuel.Oil Flow. 13. Fuel Oil Return 14. Fuel 01 Tank Vent 15. Compressed Air 16. Hot Water Heating Supply 17. Hot Water Heating Return :.Hm- -FO.F- -FOR--FOV- Ajb Conditioning 18. Refrigerant Discharge___...... 19. Refrigerant Suction 20. Condenser Water Flow 21. Condenser Water Return 22. Circulating Chilled or Hot Water Flow 23. Circulating Chilled or Hot Water Return 24. Make-Up Water 25. Humidification Line " 26. Drain 27. Brine Supply ,'v 28. Brine Return -SB . ; --c-------------- -ch-------------------chr-------------- Plumbing 29. Soil, Waste or Leader (Above Grade) 30. Soil, Waste or Leader (Below Grade) 31. Vent 32. Cold Water ' ' .... 33. Hot Water 34. Hot Water Return .. ___ ____ 35. Fire Line 36. Gas " 37. Acid Waste 38. Drinking Water Flow 39. Drinking Water Return-,------ 40. Vacuum Cleaning 41. Compressed Air - , ------... --------------------------. ' : `__ _i_.'----------1L -- __________ ___ F--__________ f- '!'. . -0 _______ Aclp_____ ,___ ''' ___ ___ v------------------ v-- ; Sprinklers 42. Main Supplies 43. Branch and Head 44. Drain A- Extracted from: American-StandArd Graphical Symbols for Pipe Fittings,.Valves, and Piping {ASA. 7,32.2.3-1949). and American Standard .Graphical Symbols for Heating, Ventilating, and Air Conditioning {ASA Z32.2.4-1949) with'the' permission of the publisher, The American Society of Mechanical JSngrneere, 29 West 39th St., New York 18, N. Y.