DRAIN POT AND DRAINAGE RECOVERING SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent a backup appliance from unnecessarily operating.;SOLUTION: A drain pot 40 comprises: an upstream side passage 43 and a downstream side passage 44 vertically extending respectively that are communicated with each other at their lower ends; an inflow port 46 formed on the upstream side passage 43; an outflow port 47 formed at a position higher than the inflow port 46 on the downstream side passage 44; a drain storage part 41 formed at the upper end of the downstream side passage 44 having an exhaust port 48; an inflow pipe 49 connected to the inflow port 46; a pressure equalizer 51 for communicating the exhaust port 48 with the inflow pipe 49.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT