valve 阀门

Filter 过滤器

ball valve 球阀

gate valve 闸阀

Stopcock 旋塞阀

Globe Valve 截止阀

Butterfly Valve 蝶阀

Exhaust valve 排气阀

Plunger Valve 柱塞阀

One-way valve 止回阀

Hydrophobic valve 疏水阀