Reliable vacuum and vacu-vapor heating equipment (1915)
The Bishop-Babcock-Becker Co. · The Bishop-Babcock-Becker Co. · leaf 22
is made in one size(See page 79 for FLUSHING FITTING … FlushingFitting A flushing fitting is furnishedwith each VacUstat, for use whencleaning the heating system.This fitting has the same sizeconnections as the VacUstat, andreadily interchanges with it,without disturbing the piping. Nineteen THE RELIABLE AIR LINE AUTOMATIC ELECTRIC SWITCH ANDVACUUM…
Heating units · Vacuum-tube collectors · HVAC ducts and casings
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