When using EZ-TC test cocks to perform this test, close No. 1 and 2 shutoffs, install adaptor fitting in test cock 3 and install sight tube in adaptor.

  • 当采用EZ-TC测试旋塞进行检测时,关闭1号和2号关闭阀,在测试旋塞3号上安装适配器连接件,在适配器内安装观察管。
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