Document N0aqjxRa4RrQ9443VRDJ5Ozw

BOILERS AND UNFIRED PRESSURE VESSELS 6 Kettles should be filled only to a point where undue splashing will not occur when the contents are heated or agi tated Splash guards or loose covers may be used Evaporating pans ordinarily are shallow pans containing steam coils which, when the pans are in operation, are immersed in the material being treated The hazard to be guarded against is permitting the cod to become exposed, in which event the mate rial may be overheated or ignited and fire or explosion result Safe practices include 1 Pans should be continuously attended as long as they are in operation 2 After each use the pans and cods should be thoroughly cleaned 3 After steam is shut off in the coils, the coils should be drained to prevent the product from being drawn into lines when steam condenses and creates a vacuum Installing a vacuum breaker would also prevent this References American Society of Heating, Refrigerating and Air-Conditioning Engineers, 34S East 47th St, New York City Guide and Data Book (Fundamentals and Equipment) American Society of Mechanical Engineers, 345 East 47th St, New York City ASMS Boiler and Pressure Vessel Code American Standards Association, 10 East 40th St., New York City Safety Color Code for Marking Physical Hazards and the Identification of Certain Equipment ZS3 1 Scheme for the Identification of Piping Systems A13 1 Bregman, J I Corrosion Inhibitors New York Citv The Macmillan Company 1963 Carmichael, Colin, ed Kent's Mechanical Engineers' Handbook, ]2th ed New York City, John Wiley fk Sons, Inc, 1950 Combustion Institute, Union Trust Building, Pittsburgh, Pa (General ) Compressed Gas Association, Inc, 500 Fifth Ave, New York City Cylinder Service Life Seamless, High-Pressure Cylinders Pamphlet C-5 Expansion Joint Manufacturers Association, 53 Park Place, New York City (General) Hansen, E G "Safety of High Temperature Hot Water" Actual Specifying Engineer (Medalist Publications Inc ), 2 72-79 (July 1959) Institute of Boiler and Radiator Manufacturers, 608 Fifth Ave, New York City (Oeneral ) Lieberg Owen S High Temperature Water Systems New York City, The Industrial Press 1959 Marks, L S, and Theodore Baumeister, ed Mechanical Engineers' Handbook, 6th ed New York Citv McGraw-Hill Book Company, 1958 National Association of Power Engineers, 176 West Adams St, Chicago, 111 (General ) National Board of Boiler and Pressure Vessel Inspectors, 145 North High St., Columbus, Ohio National Safety Council, 425 North Michigan Ave, Chicago, 111 Compressed Gases Safe Practices Pamphlet No 95 Industrial Data Sheets Cleaning With Hot Water and Steam Data Sheet 238 Low Voltage Extension Light Cords and Systems Data Sheet 316 Maintenance of High-Pressure Gate and Plug Valves Data Sheet 440 Unfind Pressure Vessels and Piping in Pulp Mills Data Sheet 243 Vessel Entry in the Rubber Industry Data Sheet 458 Northcroft, G Steam Trapping and Air Venting New York City. Tudor Publishing Co, 1946 Powers, Thomas F "Specifying Steam Traps" Actual Specifying Engineer, 6 88-95 (Nov 1961) Pruand, M S "How Expansion Joints Can Best Absorb Pipe Movement," Parts I and Actual Specifying Engineer 2 75-79 (Dec 1959) 16-23