Designed for weak acids and alkalis or media containing few grains of solid particles, both dynamic and static, mainly used for centrifugal pumps, plunger pumps, mixers and valves.
适应于弱酸、弱碱以及带有少量固体颗粒的介质，适用动、静密封，主要用于离心泵、柱塞泵、混合机、搅拌器及阀门。
When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from top to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
At all valves the plunger is sealed.
所有阀的铁芯都密封。
At all valves the plunger is sealed.
所有阀的铁芯都密封。
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