PRESSURE DETECTION SAFETY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a pressure detection safety device for a gas appliance using a small gas cylinder, in which its structure is rationalized by reducing the number of part items and also assembling man-hours, its reuse after actuation, namely its reset is facilitated, and operability is improved. SOLUTION: This device is composed such that a stem 16 is integrated with the piston of a check valve and cutoff valve, and the inside and outside of an actuation chamber 13 of a check valve are shut off by making the stem 16 detect the abnormal pressure of the small gas cylinder to retreat.