通风蝶阀 Aeration Butterfly Valve

通风蝶阀采用中线蝶阀结构原理，使用钢板卷弯后与两片法兰焊接型式设计制造而成，蝶板边缘与壳体没有直接接触留有微小间隙，蝶板关闭时没有摩擦，扭矩非常的轻。其结构简单，重量轻，便于安装。Aeration butterfly valve has a center line structure, made by a bending steel plate and weldedwith two pieces of flange. There is a tiny gap between the body and disc to avoid any frictionwhen it closed. This valve has characteristics of light torque and weight, simple structure, easyinstallation.

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