Document 6bz1d67NxKJK3G99ba1pzGOO4

Specialties, Healing Jas. P. Marsh & Company Established 1865 114-124 S. Clinton St. - CHICAGO, ILL. Sales Agencies In Most Principal Cities Thermodisk Thermodisk Free and unlimited vent of all air, hot or cold, cannot water-log, do not spit or leak water, and close instant ly for steam or vapor. Sizes and capacities for every requirement. No. S Thermodisk Air Line Valve . No. 5 Thermodisk Rapid Vent Marsh Reflux Traps for instal lation on return of radiators of any two-pipe re turn steam heatingsystem. Also for pipe coils in Refining, Cook ing and Drying apparatus. No. 1 Reflux Trap Marsh 2000 Sq. Ft. Boiler Return Trap for returning voter of condensation to Boiler. Alsofurnished in larger sizes 772 No. 2 Reflux Trap No. 4 Reflux Cast Iron Body Thermostatic Drip Trap Jas. P. Marsh & Company Marsh Indicating Gauge Marsh Gauge Board Specialties, Heating Marsh Recording Gauge Low Pressure Ounce Gauge Marsh Gauges for every requirement of indicating Pressure, Vacuum, Altitude, etc. Marsh Recording Gauges where a high grade, accurate instru ment is required and where it is desired to match other instru ments on Gauge Boards, etc. We specialize in Gauge Board outfits complete .with all in struments. Compound Ounce Gauge Show exact pressure in ounces and pounds. A necessity for the intelli gent, economical and proper operation of "Vapor," "Vacu um," "Semi-Vacuum," and "Atmospheric" Heating Sys tems and for any low pressure boiler. Marsh Ther-Alti-Meter Marsh Altitude Gauge and Hot Water Thermometer Combined Alti tude Gauge and Hot Water Thermometer. The two indications, altitude and tempera ture, at a glance. The ideal and logical instru ment to specify for any hot water Forany hot water heat ing boiler where the sepa heating boiler. rate Altitude Gauge and Hot Water Thermometer are preferred. Architects and Heating Engineers will find illustrated and described a Marsh Gauge, Radiator or Steam Trap, Automatic Air Valve, Vent and Heating Specialty for each service requirement--in literature which we will be pleased to send upon request. 773