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
Seat face Stellited, ground and lapped to a mirror finish.
钨铬钴合金面阀座，经过研磨抛光达到镜面抛光度。
3
Input seal: input carbon seal was blistered on the sealing face; the input carbon seal was scrap. Sealing face on the input shaft was scratched, and was lapped.