RELEASE INSPECTION METHOD OF FIRE HYDRANT DEVICE, RELEASE INSPECTION DEVICE USED THEREFOR AND FIRE HYDRANT DEVICE WITH THE RELEASE INSPECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To obtain a release inspection method and device of a fire hydrant device and a fire hydrant device equipped with the release inspection device that helps facilitate restoration work after release inspection work, and reduce working time used therefor. ;SOLUTION: A release inspection method in a fire hydrant device equipped with a fire hydrant valve and a fire hose provided on the secondary side of the fire hydrant valve and having a nozzle at the tip, by which release inspection is carried out for a fire hydrant device with the release inspection device by switching the secondary channel of a three-way switching valve from the firefighting hose side channel to the release inspection device side channel by the three-way switching valve provided on the primary side of the fire hose.;COPYRIGHT: (C)2001,JPO