锥形阀塞经过精密研磨，采用硬化高合金材料或一种镀层不锈钢，确保紧密密封和操作容易。
The tapered plug is precision ground from hardened high alloy material or an overlaid stainless to assure a tight seal and easy operation.
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。
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.
阀座环较长，并且是密封焊接的，能够补偿温度波动。阀座面用钨铬钴合金6硬化， 研磨和层叠为镜面光洁度。
Seat rings are long to compensate for temperature fluctuations and are seal - welded. seating faces are hardfaced with stellite 6, ground and lapped to mirror finish.
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