VQ647W單作用防爆氣動不銹鋼V型調節球閥VQ647F氣動V型球閥VQ647Y氣動不銹鋼V型調節球閥VQ647H氣動V形球閥QV647Y防爆氣動V形調節球閥QV647F防爆氣動V形球閥QV647H氣動V形調節球閥4-20mA調節型氣動V形球閥/氣動不銹鋼V型球閥/故障自動復位防爆氣動V型法蘭球閥/單作用防爆氣動V型切斷球閥/防爆氣動V形開關球閥/氣動不銹鋼V形球閥是一種直角回轉結構的控制閥。