벨로우즈 씰 글로브 밸브: 스템 씰링, 배출 제어 및 선택 가이드
Learn how bellow seal globe valves use a welded metal bellows assembly to reduce stem leakage and fugitive emissions in high-temperature, hazardous, toxic, steam, thermal oil, and chemical service. The guide explains bellows sealing principles, backup packing, material selection, cycle-life considerations, pressure-temperature requirements, emission-control standards, and key selection factors for critical industrial piping systems.