Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 185
e 145 136 HEATING AND VENTILATION branch at the right is carried outboard through a back-pressurevalve which may be set to carry any desired pressure on the system.The other l)ranch at the left passes through an oil separator into theheating svstem. The connections between the mains and… … ^=^—<gn ^-rt wATEfi PRassuac STeAM PRESSURE =CaS:lM_ifflra CONNECT/ON iv M -Ssl a I ORIP Fig. 12.5. Simple Form of Automatic Damper-Kegtilator. Operated by Lever Attached toDiaphragm, for Closing Dampers when Steam Pressure Reaches a Certain Point. or balance pipe connects the top of the…
Architecture · Building · Carpentry
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