y its separator is supported vertically, and its dimensions neer in charge in absolute control of the circulation entire distance in a space that is occupied by steam that are 8 inches diameter by 10 feet long. It forms a between receiver and separator. It permits an atmo- is continually under… … system; then the reducing valve is Fig. 2— HOLLY COMBINED DIRECT HEATER AND RETURN SYSTEM. good elevation can be obtained.
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