、密封圈 seat ringР整体（阀）座 integral seatР堆焊（阀）座 deposited seatР阀芯（包括密封圈、杆等内件） trimР阀盘 discР阀盘密封圈 disc seatР阀体 bodyР阀盖 bonnetР阀盖衬套 bonnet bushР螺纹阀帽 screw capР螺纹阀盖 screw bonnetР螺栓连接的阀盖 bolted bonnet (BB)Р活接阀盖（帽） union bonnet (cap)Р螺栓连接的阀帽 bolted cap (BC)Р焊接阀盖 welded bonnet (WB)РР本体阀杆密封 body stem sealР石棉安全密封 asbestos emenen sealР倒密封 back sealР压力密封的阀盖 pressure-tight bonnetР动力操纵器 powered operatorР电动操纵器 electric motor operatorР气动操纵器 pneumatic operatorР液压操纵器 hydraulic operatorР快速操纵器 quick-acting operatorР滑动阀杆 sliding stemР正齿轮传动 spur gear operatedР伞齿轮传动 bevel gear operatedР扳手操作 wrench operatedР链轮 chain wheelР手轮 hand wheelР手柄 hand lever (handle)Р气缸（或液压缸）操纵的 cylinder operatedР链条操纵的 chain operatedР等径孔道 full bore; full portР异径孔道 reducing bore, reduced port,venturi portР短型 short patternР紧凑型（小型） compact type
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