1。Butterfly valve with manual gear actuator
0 k. ^) G" `- B& l( I5 E2。Manual globe valve with gland packing turning stem5 {# v" v1 [# W5 e5 z
3。Twin plate check valve# s: t6 Q/ t/ T2 I; h( @2 l0 T* A; m3 M
4.Disc type check valve5 x' f! Y- g; m) }
这些阀的名称!!!!!!!!!!!!!!!!!! ...# r' `) t1 U: x) w) ?: s
liuss5201 发表于 2010-1-29 10:27 
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/ R. Y. ~- h1 a1.带手动齿轮执行器的蝶阀' p' g, I! x! j( K O+ c7 {! n
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2.带填料密封旋转杆的手动球阀
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3.不会
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4.蝶形单向阀 |