此类阀门可用于隔绝或调节液流。盘片安装于管道中心，一根杆子穿过盘片连接阀门外部的驱动器。旋转驱动器，将盘片旋至与流向平行或垂直。与球阀不同，盘片通常位于液流中，因此无论阀门位置在哪都会在液流中产生压降。
“蝶阀”是安装在杆子上的一个金属盘片。阀门关闭时，盘片被旋转至可完全阻挡通道的位置。阀门完全打开时，盘片被旋转 1/4 圈，这时对通道几乎不设任何限制。阀门也可逐渐打开以调节产品流量。Products
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GEA 洞察
Making milk production more sustainable for a growing world
The world's population is growing and with it demand for milk. Dairy is an essential component of many global diets. However, its production can be resource-intensive and impact the environment. GEA’s Christian Müller, Senior Director Sustainability Farm Technologies, sheds light on how technological innovations powered by GEA make milk production more efficient and profitable.
