double seat stop valve 双座停止阀 ; 双阀座截止阀 ; 双座截止阀 ; 双阀座为止阀
double seat balanced valve 双座平衡阀
Double-seat control valve 双座调节阀
double-seat control valve detail 双座调节阀
double-seat safety valve 双座安全阀
Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.
金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。
To employ double balanced valve seat design, it has smaller volume and larger displacement and can exert its advantages when needing large displacement.
双平衡阀座设计，比一般的疏水阀体积小而排量大，在特大排量场合更能发挥优越性。
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