double disc gate valve 双圆板闸阀
double-faced slide gate valve 两面滑门阀
double faced sluice gate valve 两面遮断阀
Double Flap Gate Valve 双层翻版阀
double-disc type gate valve 双闸板式闸阀
Off penetrable knife gate valve is a new type of fast-flow regulating valve with both ends opened and closed operation of actuators that can double increase headstock speed.
本阀门是一种新型的快速流量调节的刀闸阀，具有两端同时开启、关闭的操作执行器，成倍提高启闭速度。
Traditional bin pump using the double gate valve as inlet valve. After material filled with large volume vessel, this system using a strong air flow to blow the material into silo.
传统的仓式泵一般采用双闸阀作为进料阀，在输送过程中采用“集中一次输送”，即使用大容积的发送罐，然后通过较大的气耗量将物料吹至接受仓。
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