The robust urethane seat portion of the one-piece liner covers the interior of the valve.
一件式衬垫的结实耐用的氨基甲酸乙酯阀座部分也覆盖了阀门内部表面。
2
The flat bottom gate provides full perimeter seating against the seat, eliminating pocket in the bottom of the seat that can trap process media and prevent the valve from fully closing.