Document ybQ0q06O9ozjObXZrE4GD8O5D

Trade Publications Heating and Ventilating THE INDUSTRIAL PRESS, PUBLISHERS 140 Lafayette Street, New York City Founded 1904 Heating and Ventilating accepted as the authoritative publication in the field of heating, ventilating and air con ditioning, is edited by engineers who know their subject and who know the needs of the specialists in the field. Voluntary.renewal of over 76 per cent of subscriptions testifies to the reader interest in Heating and Ventilating and to the value of the timely articles. Editorials on the planning, installa tion and operation of heating, ventila ting and air conditioning systems in public buildings of all kinds, in offices, factories, schools, hospitals and homes, keep subscribers abreast of the latest development in these fields. Constant striving to promote better understanding of the problems that arise in the de velopment and application of equipment has enabled Heating and Ventilating to play its part in. the progress manifested in this field. Heating and Ventilating also helps manufacturers of heating, ventilating and air conditioning equipment to maintain constant contact with the technicians and with the men who specify, buy and install these systems for major projects. Here is a list of some of the articles published in recent issues of Heating and Ventilating. These contributions, like all others to follow, are from men of wide practical experience: A Study of Oil-Fired Heating Boilers. Ventilating a University Laboratory. Calculations for Radiant Heating. Cooling Railway Cars with Steam. Operation of an Air Conditioning Plant in a Large Office Building. Designing Water Supply Piping for Building. Heating and Cooling for a Modern Bank and Office Building. Clean Air necessary for Proper Ventilation of Homes. Setting the Thermostat Back at Night. An Electrically Heated Office Build ing. Radiant Heating Studied in' Britain by Using Scaled Models. What Thickness Insulation for Gas Heated Buildings? Problems of Library Heating and Ventilation. Sample copies of Heating and Ventilating on request. Sub scription Price $2.00 a year- 846 D. G. C. Trap and Valve Company, Inc. 1 E. 43 Street New York Murray Hill 2-7320 Makers of Cryer Radiator Control Valves, Radiator Traps and Steam Traps Distributors in All Principal Cities Cryer Radiator Control Valve A Control Valve which gives to" steam heating systems the same operating economies, and the same medium temperatures in the radiator afforded by hot water heating systems. . The Cryer Control Valve mixes the steam with air already in the radiator, and circulates this humid mixture of air' and steam through all sections of .the radiator. The temperature of the whole radiator may be varied at will from the low temperatures usual only with hot water, to the full steam effect. Cryer Radiator Trap A Thermostatic Radiator Trap constructed to endure as well as to operate efficiently. The bellows is made of a special bronze alloy, the seat of stainless steel, the spud, nut and cap are bronze forgings, and the body is a heavy bronze casting. 'Made to standard dimensions. Suitable for low pressure, vacuum or vapor heating. Cryer Condensation Trap A heavy duty Condensation trap for Unit Heaters, Ventilating Stacks, Hot Water Heaters and other large units. Compact design, small enough to be used anywhere, but of large ca pacity. Cannot air-bind. The Cryer Condensation Trap is of the unat tached ball float type, with a thermostatic air by-pass. The valve seats are stainless steel, the float seamless copper nickel-plated, the bellows of bronze alloy, and the body of heavy cast-iron. The pressure limit is 10 lbs. Catalogues on Request 847