The test data indicated that the arrangement of the repairing slot of the middle outlet can meet the requirements recommended by China's high pressuregate design criterion;
试验成果表明：中孔检修门槽布置符合我国高压闸门设计规范推荐的平面门槽形式；
2
The interference fit between the gate and seat provides bubble tight shutoff even under the lowest pressure.
即使在最低的管线压力下，闸板与阀座之间的配合也能够实现气泡级密封功能。
3
Fluid pressure on one side of the gate presses it against the opposite seat with great force and improves the seal.