Collection and Measurements on Pressure Regulator for Gas Cutting from Industrial Sites

Part 3: Decomposition Measurement of Presure Gauge Windows and Springs

Abstract

This study was a continuation of previously reported flame arresters, gas-cutting torches, and pressure regulators lected from industrial sites. In Part 3, the pressure regulators were disassembled, and the pressure gauge windows, essure adjustment springs （large springs）, and valve springs （small springs）were examined from the viewpoint of aged erioration. The following results were obtained. a）Low visibility of the pressure gauge was mainly due to scratches on the face of the plastic window. b）Aged deterioration of the springs was noticeable with small load ranges, and the deflection reased. c）Helpful information was obtained to elucidate the cause of explosions and fires.