Leaving the disc in a fully closed position firmly closed also prevents weld spatter from falling directly onto the mating faces of the seat and disc.
Leaving the disc in a fully closed position firmly closed also prevents weld spatter from falling directly onto the mating faces of the seat and disc.
保持阀瓣处于完全关闭位置也能够避免焊花直接掉在阀座和阀瓣的连接面上。