. Reliable vacuum and vacu-vapor heating equipment . radiators, pipes and boiler free from air,and prevents escape of steam. The VacUstat is entirely different and far superiorto any other radiator air valve. The chart below clearlyexplains the construction and operation. STRAINER —keeps oildirt out. insuring quick,free passage of air throughthe VacUstat to AirLine. Strainer is brass,silver plated, and cannotcorrode. PORTS through which airpasses to thermal member THERMAL MEMBER brass and phosphor bronzecasing filled with volatliquid. This contracts andexpands as temperature ofvolatile liquid
. Reliable vacuum and vacu-vapor heating equipment . radiators, pipes and boiler free from air,and prevents escape of steam. The VacUstat is entirely different and far superiorto any other radiator air valve. The chart below clearlyexplains the construction and operation. STRAINER —keeps oildirt out. insuring quick,free passage of air throughthe VacUstat to AirLine. Strainer is brass,silver plated, and cannotcorrode. PORTS through which airpasses to thermal member THERMAL MEMBER brass and phosphor bronzecasing filled with volatliquid. This contracts andexpands as temperature ofvolatile liquid is lowered orraised. When thermal mem-ber cools, it contracts andthe air outlet, between ther-mal member and seat below,is opened. Any air in thesystem then passes out ofVacUstat into the AirLine. When steam reachesthermal member, it expandsand closes the passage, sono steam can escape OUTLET of air to Air Line,connected to Vacuum Pump ROD BRASS NIPPLE — irazed in, stands contrac-tion and expansion inservice, and there is noloss from S E AT — just flexibleenough to always insureperfect (tight) seating ofthermal member The VacUstat Patented June 23, 1914 Capacity —150 Square Feet Direct Radiation A VacUstat is placed on each radiator or coil athighest vent tapping, and through its use air resistance iseliminated from the system. Every radiator becomes fullyefficient, which means thorough and even heat three to four times the venting capacity of the ordi- Eigkteen VACUUM HEATING EQUIPMENT nary air valve, the VacUstat enablesthe pump to rapidly draw air fromthe radiators, supply piping andboiler. Heat reaches the radi-ators instantly, so quick heatingis assured at all times. The VacUstat is verydurably constructed,and will last longerthan other air body and capare heavy brass. Thecase of the thermal member is rodbrass; the diaphragm is phosphorbronze. The seat is made of adurable composition. The straineris brass, silver plated. The
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Keywords: ., bookcentury1900, bookdecade1910, bookidreliablevacu, bookyear1915
