A V-shaped bar bent to a half-circle is attached to the body, close to the front of the disc in full open position.

 
  • 一個(gè)V形桿彎曲成半圓狀附加在閥體上,在閥門(mén)處于全開(kāi)狀態(tài)時(shí)緊靠閥瓣前部。
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