Precision ground blade on both sides for tighter packing chamber sealing. Sealing face of the gate is lapped to provide the best possible seat tightness.
两侧都经过精密光亮磨光的刀片确保填料腔的气密性密封。闸板的密封面经过研磨，以提供最好的阀座密封性。
2
The urethane liner is cast in place to form a continuous liner throughout the entire body, chest, packing chamber and flange face area.
氨基甲酸乙酯衬垫采用定点浇铸工艺，在整个阀体、阀腔、填料腔和法兰面区域表面形成全面连续的覆盖衬垫。
3
Method: To choose best recipe and craft by doing experiment of face junction and survey its quality stability under the condition of chamber temperature and hasten experiment.