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Choice of control valve structure form
The author: Time:2020/12/7

 

  调节阀的结构形式有直通单座阀、直通双座阀、角形阀和蝶阀等基本品种,各有其特点,在选用时要考虑被测介质的工艺条件、流体.特性及生产流程。
  直通单座阀和双座阀应用广泛。当阀前后压差较小,要求泄漏量也较小时,应选直通单座阀;当阀前后压差较大,并允许有较大泄漏量时,应选直通双座阀。当在大口径、大流量、低压差的场合工作时,应选蝶阀,但此时泄漏量较大。在比值控制或旁路控制时,应选三通调节阀;当介质为高压时,应选高压调节阀。

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